bulldozer advantages and disadvantages

And, because they are less likely to damage the ground they are working on, they are often the preferred choice for sensitive projects. A bulldozer is much bigger and heavier than a dozer, and has more powerful engines. Rippers are also designed with steel alloy tips that are easily replaceable to ensure that they are always sharp. If you have ever searched online for information about a vehicle and you were unable to find anything (or anything reliable) then you are not alone! As a verb bulldozer is to bulldoze (push through forcefully). Output of Bulldozer. As a result, the operating system serves as the resource manager for all resources. If you need to choose between the two, its important to know which one is most efficient for your project. Dozers are less likely to be used for excavation, grading, and construction. This machine is typically used in construction and mining applications to transport large materials. In general, bulldozers are used: Bulldozers and motor graders are both powerful pieces of equipment capable of getting a range of jobs done on time. So, buckle up and hold on tight the future of bulldozers is going to be one wild ride! I know from digging out to ponds that they are hard to get stuck. AI route optimization algorithms are efficient at determining the best routes by considering a variety of factors into account, such as traffic, distance, and delivery schedules. Bulldozers are also more likely to be equipped with a front loader. mini dozer Here is a summary of the key differences: Bulldozers are large and heavy machines that are used to destroy large objects. The continuous tracks of the bulldozers have a strong grip that helps them when undertaking rough terrain. At the front of the machine is a heavy, wide steel blade or plate used for pushing, grading, or lifting. Timber has good thermal resistance which prevents the damage of concrete in colder regions. Thanks to its small size, a compact bulldozer can perform well in different types of projects that require tasks like grading and clearing lots. Using a bulldozer to remove trees is less expensive than manual felling. Theyve transformed from simple earth-moving machines into versatile, powerful, and high-tech tools that are integral to the construction industry. Bulldozers are used at construction sites to level the ground and also in mining tunnels.

And, because they are less likely to damage the ground they are working on, they are often the preferred choice for sensitive projects. A bulldozer is much bigger and heavier than a dozer, and has more powerful engines. Rippers are also designed with steel alloy tips that are easily replaceable to ensure that they are always sharp. If you have ever searched online for information about a vehicle and you were unable to find anything (or anything reliable) then you are not alone! As a verb bulldozer is to bulldoze (push through forcefully). Output of Bulldozer. As a result, the operating system serves as the resource manager for all resources. If you need to choose between the two, its important to know which one is most efficient for your project. Dozers are less likely to be used for excavation, grading, and construction. This machine is typically used in construction and mining applications to transport large materials. In general, bulldozers are used: Bulldozers and motor graders are both powerful pieces of equipment capable of getting a range of jobs done on time. So, buckle up and hold on tight the future of bulldozers is going to be one wild ride! I know from digging out to ponds that they are hard to get stuck. AI route optimization algorithms are efficient at determining the best routes by considering a variety of factors into account, such as traffic, distance, and delivery schedules. Bulldozers are also more likely to be equipped with a front loader. mini dozer Here is a summary of the key differences: Bulldozers are large and heavy machines that are used to destroy large objects. The continuous tracks of the bulldozers have a strong grip that helps them when undertaking rough terrain. At the front of the machine is a heavy, wide steel blade or plate used for pushing, grading, or lifting. Timber has good thermal resistance which prevents the damage of concrete in colder regions. Thanks to its small size, a compact bulldozer can perform well in different types of projects that require tasks like grading and clearing lots. Using a bulldozer to remove trees is less expensive than manual felling. Theyve transformed from simple earth-moving machines into versatile, powerful, and high-tech tools that are integral to the construction industry. Bulldozers are used at construction sites to level the ground and also in mining tunnels. The Advantages and Disadvantages of Using a Bulldozer - Fuzia The blades move so quickly that they can demolish even thick concrete walls. Operator error can lead to accidents, sometimes with serious consequences. And remember, theres always room for innovation and improvement in the industry. Because bulldozers are fitted with tracks instead of tires, they distribute their weight more evenly and are better for working on soft ground. Similar to a tractor, however, the bulldozer is used to push massive amounts of debris and raw material, including sand, rocks, dirt, and bricks. Bulldozer Advantages And Disadvantages (What Are Their Pros - EduAutos "publisher": { Lets explore some ways to tip the scales in your favor. Their components are designed to last, ensuring that you get the most bang for your buck. "author": { One bulldozer! Bulldozers are large machines that are used to destroy buildings or other large structures. They are able to clear large areas very quickly, and they can do so with a minimal amount of damage to the surrounding area. As referenced, the cutting edge is regularly utilized reciprocally with plate to allude to the enormous metal structure on the facade of the dozer. The base consists of compacted gravel, sand, rock, or a mix of these materials. Bulldozers are also equipped with a blade on the front of the machine. The subgrade is the existing natural soil. Depreciation: New equipment starts depreciating as soon as it is purchased and driven off the lot. Earthmoving is one of the following most basic uses of pieces of machinery. In addition to the brake pedal, the tractor has a decelerator pedal, which helps the tractor to slow down but does not stop it. Mud, sand, or gravel, this equipment can power through it all. Theyre commonly used for clearing land and demolition, but they can also be used for construction. They might disturb soil on sloping land and increase erosion or destroy trees. A dozer, on the other hand, is smaller and lighter, and is mainly used for excavation work digging out trenches, breaking up rocks, and so on. They are typically powered by diesel engines and have a lot of torque. Dozers are similar machines, but they are smaller and are used for different purposes. However, they come with environmental, mobility, and cost-related drawbacks that shouldn't be overlooked. What Is The Best Way To Operate A Bulldozer? }, But what, Read More Gelato Vs Ice Cream Vs Sorbet Vs Frozen Yogurt: Whats The Difference?Continue, Finding the correct image allows us to verify that you are not a robot. Done. "I know from digging out to ponds that they are hard to get stuck.". Despite the fact that the first plan is still practically what a great many people use today, there have been upgrades and alterations made to the piece of machinery to widen its applications and adequacy. A new bulldozer can be a hefty investment. Motor graders also make excellent snow removal machines. When needed, a hook-like device (termed a ripper) can be mounted . What is the difference between bulldozer and excavator? Lets take a peek into the crystal ball and explore some possibilities. A bulldozer or dozer (also called a crawler) is a large, motorized machine that travels on continuous tracks or large tires and is equipped with a metal blade to the front for pushing material: soil, sand, snow, rubble, or rock during construction or conversion work. A mini dozer is great for projects that require more maneuverability and versatility than larger machinery. Operating a bulldozer is no small task, and safety should always be a top priority. Bulldozers are easier to operate than some other pieces of equipment. One joystick is used by the driver to steer the bulldozer and the other one in controlling the blade. I know from digging out to ponds that they are hard to get stuck. Lets take a look at some alternatives. The bulldozer is propelled by the rear wheels while the front end pushes and pulls the load. For example, one study foundthatbulldozersdamaged 33 percent of treeson steep terrain during forest road construction. Specific distinction bulldozer accessories color difference.In addition to inspecting the appearance of color, but also a comprehensive inspection, should be in its up and down tilt inspection, if no matter from which aspects can accurately see no abnormal color, ability judgment for real goods.Otherwise, if only in front of its investigation to identify the color, so it is false color.You can get a costly, excellent performance bulldozer parts from the business, and put it on the bulldozer parts you want to buy around, in the same interface for its brightness, contrast and reaction speed, visibility and other parameters of the pros and disadvantages of comparison. Increased efficiency. There are many types of earth moving equipment from which one can choose from. bulldozers were first developed in the early s as a way to clear land for farming. It has a bottom cutting edge and corner bits to drift and cast material. They have advance operator safety and controls and have comfortable cabs. Generally speaking, the working principle of a motor grader machine is it uses its moldboard, or blade, for rough or fine grading. Advantages of Bulldozers Dozers are big-sized weighty vehicles making them a perfect option for cleaning construction sites and for the purpose of demolition. Let us know your areas of interest by checking all that apply below. The tracks, which are of high quality, allow the bulldozers to be invariable for their excessive weight. Bulldozer - Types, Applications, and Output Calculation They often feature comfortable cabs to improve operator safety and control. The tracks also help the bulldozers to distribute their weight which in turn prevents them from submerging in land that is covered with mud. Their blades can cut through anything, including concrete blocks. What are the key advantages of using a bulldozer? 3 Ways a Pick-and-Carry Crane Saves You Money, Basic Things to Check Before Hiring a Crane Loading Platform for Your Construction Project. Output of dozer in volume/hrs = loose volume handled / trip x S x 60/t x efficiency. Using a chain is cheaper in the long run than using a single bulldozer, and causes less disturbance to the soil. Here are other commonly used attachments: Motor graders play an essential role in performing accurate grading and leveling. "image": "https://nmccat.com/wp-content/uploads//07/Motor-grader-Vs-Dozer.jpg.webp", According to a survey,almost 88 percentof the surveyed engineers and equipment operations managers called their grader their most important piece of equipment. This causes the dozer to move forward, and it keeps moving forward until the driver stops it. Sep. 14, Bulldozers are extremely effective pieces of heavy machinery, but not everyone knows how they work or appreciates their power. 8 Whats the difference between blade and blade on Bulldozer? These bad boys can clear vast swathes of land in record time, leaving manual labor in the dust (quite literally). There are some advantages of a bulldozer; they make it a piece of perfect equipment for construction. Typically, the mobility of a bulldozer is strongly influenced by its tracks and tires . Proper drainage is also needed to keep a stable base. Bulldozers: those mighty beasts of burden that flatten everything in their path. Cycle time in minutes = D/F + D/R + G. But without regular maintenance . Owning or renting a backhoe loader provides you with everything needed to dig, lift and carry materials in one machine. Before you choose a bulldozer, consider the impact and how this can affect your project goals in the long term. Bulldozers are often used in construction and demolition, but they can also be used for other purposes such as clearing land. Love em or hate em, theyre an essential part of the construction world. . Yes, a bulldozer can get stuck. Bulldozers are powerful pieces of machinery capable of pushing rocks, earth, demolition debris, and other materials. Before a development burrow or construct can start, it's normal for the brush and common vegetation of a territory to should be eliminated. These tracks also help the bulldozers to distribute their heavy weight thwarting them from submerging in dirty or mud-covered land. A bulldozer blade works best for felling single trees near ground level, and is more readily available than specialized equipment. Heres how to know if an attachment will fit your bulldozer: Despite its heavy weight, bulldozer operation is relatively easy and may be good for beginners. The large tracks distribute the machines weight evenly which also helps it move over a variety of terrains. Minimize the disadvantages by investing in training, maintenance, and eco-friendly technologies. Sheesham Wood Vs Teak Wood: Whats the Difference? We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. If youre not quite sold on bulldozers, fear not! Its safe to say that bulldozers and dozers have a lot in common. For U shaped blades, blade height = blade depth. This isn't amazing given their gigantic size and paw like expansions! Bulldozers are heavy equipment used to move large rocks, earth, or debris. Its also designed to move large chunks of earth or rock at high speed, so its good at demolishing buildings or clearing land. If the machine starts to slide sideways when working across a slope, turn the machine downhill and drop the blade. Excavators have many advantages over other types of heavy equipment. The excavator's bucket allows it to transport materials, but a bulldozer cannot transport materials in the blade. The tracks that pivot around the base of the dozer, similar to a flowing belt, are liable for its extensive flexibility on extreme territory and its capacity to ship and hold strong burdens. For the Franchisee 1. Its a recipe for disaster (and a potential YouTube sensation). Globular Proteins Vs Fibrous Proteins: Whats the Difference? Now that weve gushed over their many benefits, its time to bring these beasts back down to earth. Bulldozers are like that fancy sports car youve always wanted: expensive upfront and costly to maintain. Samsung's investment in Japan: advantages and disadvantages. In the event that the ground is firmly pressed together or compacted, the ripper will deliver the dirt into a milder, more functional state. "@type": "Person", From breaking ground on new building sites to plowing fields, these multitaskers are up for just about any challenge you can throw at them. Hey, I'm Matt and I'm the founder of EDU Autos. It took our instructor 1 hour to finish something that would take our class the whole day doing. Globular proteins are made up of several globular proteins. Today, bulldozers are used for a variety of purposes, including construction. The excavator is typically a better fit for demolition projects, mining, driving piles, drilling shafts for rock blasting, and overall large-scale industrial projects. Dozers are typically faster and can move debris more quickly than bulldozers. X2 if is very easy to tear up a set of LGP tracks trust me. Use Of Dumpers in Construction, Advantage and Disadvantage The second is to carefully study the scale and operation of the bulldozer accessories, the operation of the bulldozer accessories and scale and quotation hook consideration, of course, can also be used to pressure the price. { Also done. What are the advantages and disadvantages of the LGP tracks on a dozer? ", Root extraction is difficult, however, in younger trees because they tend to bend under the weight of the chain. They typically use electric motors and have less torque. You are using an out of date browser. They are less expensive if you use them to remove trees, as the manual lifting of trees is expensive. They are strong, efficient, and versatile. Truth be told, they are regularly utilized for various different purposes. Read on to learn something new and build up knowledge thats sure to impress any of your gearhead buddies. Bulldozer vs. Dozer - Ask Difference How can operators minimize the disadvantages of using a bulldozer? As the tractor moves, the blade is flush against the ground. Yes, most people often use the word bulldozer to refer to all types of heavy equipment. A bulldozer is a crawler (continuous Tracked tractor) with a substantial metal plate used (known as blade) fitted to push large amounts of soil, sand, dirt or other materials when construction or remodeling and usually push on the back with a claw mechanism (Known as ripper) to loosen densely-compacted materials. Massive haulers. Bulldozer . Also read: Bamboo house design and construction ideas for sustainable living. As an Amazon Associate we earn from qualifying purchases. "@id": "https://nmccat.com/motor-grader-vs-dozer-when-to-use-which" Visit more of our blogs! Bulldozers and motor graders are both highly versatile pieces of construction equipment. This equipments versatility is truly astounding. On vulnerable sites, bulldozers increase erosion on sloping land by disturbing the soil considerably. Bulldozers are designed for demolition while dozers are used for earthmoving and construction. Advantages of bulldozer. It is formed like a paw to deliver this incredible shearing impact. But because their tracks are narrower, they can move through tight spaces more easily. If youre looking to bulldoze something, a bulldozer is the machine for you. "datePublished": "" In this article, we've investigated the piece of machinery: what it is, the thing that it does, what it's utilized for, and how it might have the option to make your life simpler. Bulldozer Vs Dozer: Whats The Difference? Pros & Cons of LGP Tracks | Heavy Equipment Forums A dozer can also be equipped with a blade or roller to create larger chunks. #1 What are the advantages and disadvantages of the LGP tracks on a dozer? This grants them to do tasks that may some way or another put laborers in risky or awkward circumstances, regardless of whether these identify with climate conditions, falling trash, or the dangers of encompassing hardware. There are plenty of other heavy machinery options at your disposal. But with great power comes great responsibility (and a few drawbacks). They are strong, efficient, and versatile. bulldozers use hydraulic pressure to move their blades. A bulldozer blade is multi-functional, and is available for other uses on the job site after felling trees. If you're looking to bulldoze something, a bulldozer is the machine for you. These powerful machines are used for demolition and construction work, and their huge wheels and heavy construction equipment make them a formidable foes. Because bulldozers often use tracks instead of wheels, they can move over rough terrain such as muddy or sandy surfaces without getting stuck. A bulldozer is a crawler (continuous Tracked tractor) with asubstantial metal plate used (known as blade) fitted to push large amounts of soil, sand, dirt or other materialswhen construction or remodeling and usually push on the back with a clawmechanism (Known as ripper) to loosen densely-compacted materials. They are available in a range of sizes to suit the needs of different projects. But I am new to dozers and running them, I hear all kinds of advice but would like to hear from people that run them every day. Both machines are used to demolish buildings, clear land, and create other sorts of earth-moving projects. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. This provides a lot of flexibility with one machine and prevents you from having to rent or buy other machinery. An operating system handles all essential functions, such as handling files, programs, and memory. Learn how your comment data is processed. Keep the dozer blade as close to the ground as possible while travelling up or down a slope. Fortunately, we provide you with excavator and bulldozertips. As nouns the difference between bulldozer and dozer is that bulldozer is a tractor with an attached blade for pushing earth and building debris for coarse preliminary surface grading, demolishing building structures, etc while dozer is one who dozes. Surely, there must be a few reasons why these mighty machines have stuck around for so long, right? What are the main disadvantages of using a bulldozer? Advantages Timber can be cut into any required size easily. What are the alternatives to using a bulldozer? "@type": "ImageObject", It contributes to land degradation, salinity and declining water quality, damage to coastal marine zones, species extinctions and greenhouse emissions. Disadvantages of a Bulldozer Another bulldozer disadvantage is they can impact the environment. Some attachments you can use with a bulldozer include: Two stories tall. This site uses Akismet to reduce spam. By Staff WriterLast Updated April 17, Follow Us: Using a bulldozer to clear land is cheaper than manual felling, but leads to extensive soil disturbance. A bulldozer blade is multi-functional, and is available for other uses on the job site after felling trees. "@context": "https://schema.org", I have one with the wide tracks and love it. This cookie is set by GDPR Cookie Consent plugin. The difference between a dozer and a farm tractor comes from the metal plate (also called a blade) featured in the front of the bulldozer. Also, motor graders have limited traction because they use rubber tires rather than tracks. They are very large and powerful machines that can demolish buildings and other structures. Bulldozer vs Dozer - What's the difference? | WikiDiff

The company is the world’s best What Is a Road Grader supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

Having smooth asphalt and road surfaces is not only safer for drivers and pedestrians but it also saves on wear and tear of road at the same time keeping those surfaces from having to be replaced and worked on as much as they were in the past. New technology can make sure the finished product is even better than it has ever been. Qualified and able equipment operators continue to remain vital as well.

Logistics an Important Part of the Mix
Finding skilled operators with the ability to utilize a motor grader to fine grade is a challenge, as Michael Ackerman, motor grader product marketing manager with John Deere Construction and Forestry points out. &#;Not only do they need the ability to do the final pass, they also need to learn how to handle the material. This involves placement, processing, material moisture, and so forth to make that final grade,&#; says Ackerman.

Job sites may pose challenges as well. &#;In order to handle the material, other support equipment such as water trucks, haul trucks, or compaction equipment is required,&#; explains Ackerman.

&#;In order for the motor grader operator to be as productive as they can be they cannot wait for this support equipment. Thus, coordinating all the support equipment is a key part of fine grading work and motor graders are most useful for this type of work.&#;

The process remains twofold. First, motor grader controls allow the operator to accurately control hydraulic functions, particularly the blade raise and lower. This allows the operator to produce finished grade at speeds greater than ever before. In listening and responding to operators, John Deere offers them a choice of controls with their G/GP offerings that both include a steering wheel.

The company&#;s G offering includes conventional mechanical levers positioned in the industry-accepted pattern on both sides of the steering wheel. The GP offers armrest-mounted actuated controls including a steering lever arranged in the industry standard pattern. The second is the ability to offer grade control systems and enhance the operator&#;s ability to produce fine grade. The GP offering also comes standard equipped with automated cross-slope control, which allows the operator to hold a consistent slope utilizing one blade lift lever versus two. The operator inputs the desired slope, and the system automatically adjusts the opposite blade lift cylinder to maintain the slope.

In terms of technology, the two main players here are tire technology and grade control systems, each playing a part in high-production finish grading. Tire technology has allowed the operator to produce fine grades at higher speeds by working to eliminate &#;bounce.&#; The operator produces a glasslike finish over that of a washboard. Grade control systems continue to enhance the operators&#; ability by offering the ability to produce millimeter-accurate finish work.

&#;John Deere&#;s &#;˜open-architecture&#; design on our GP models lets the customers employ their favorite brand of grade-control system. GP models come factory-equipped with bulkhead connectors, sensor mounts, electrical wiring harnesses, integrated controls, and exclusive universal moldboard mast mounts. So adding Topcon, Trimble, Leica or other grade-control systems is neat, quick, and noninvasive.

&#;The operator is a key part in producing fine grading work,&#; adds Ackerman. &#;Thus, improving the operator experience is a key to continuing to improve fine grading productivity. Items like operator comfort, visibility, user-friendly systems, etc. will all have an impact on this. Finally, simplifying training on the machine features and grade control systems will make the learning curve much shorter and allow that operator to be more productive sooner.

&#;Critical to how a motor grader performs is how the machine is balanced from a weight standpoint. John Deere recognizes this and has utilized input from operators that do this type of work every day to develop a well-balanced machine. Another key to how a motor grader performs is horsepower and, more importantly, getting that power to the ground.&#;

A key part of that is the company&#;s six-wheel drive offering. These motor graders are able to put the entire weight of the machine and all six tires to work boosting production of the finish grade work completed. Six-wheel drive enables the motor grader to move heavy windrows of base rock to process the material. This processing requires the motor grader to move at higher speeds to get a good rolling action off the blade and ensure proper mixing of the material. The six-wheel drive configuration allows the motor grader to sustain this speed and drive higher productivity on the job site.

&#;Despite all the technological advances in fine grading, I see no worries for those wondering if their jobs are in jeopardy,&#; adds Ackerman. &#;I would say this is not an issue. As I have commented, the operator is integral to fine grading work and will continue to be.&#;

Keeping up With the Changes
Technology has changed dramatically in the last decade with the advancements in machine and grade control with the GPS and laser control systems, according to Jeff Hulse, product specialist with Case Corp. &#;These systems improve efficiencies and reduce costs due to fewer passes involved in the fine or finish grading process, which means lower costs in fuel and wear and tear on machinery. Case motor graders can be fit with any of the major brands in the machine control industry.&#;

Continued advancements in machine control and job mapping, things like integrated GPS in motor graders, simplified setup and operation, as well as smaller base stations and receivers are driving the changes on the this equipment, explains Brad Stemper, Case manager, product sales training &#;To keep up with all the change out there, Case offers a full line of motor graders and compaction equipment, including both soil and asphalt compaction equip. Several unique features of the Case grader make it an excellent choice for all phases of the grading process.&#;

The involute multiradius moldboard design provides excellent mixing of material with less segregation of aggregates and fines. The multiradius also requires less horsepower to move the material, which also computes to less fuel consumed. &#;Case all-wheel-drive graders offer an excellent &#;˜creep&#; feature, which allows for infinite speed adjustments from zero to 3.6 mph, allowing the operator to maneuver around such tight turns and obstacles as curb and gutter when finish grading,&#; says Hulse.

&#;Front articulation is another unique feature of Case motor graders,&#; adds Stemper. &#;This provides better visibility and control. You know where you&#;re going just by looking out at the front of the machine. Also, the cab sits back farther, so there&#;s better visibility to the moldboard.&#;

Less Need for Workers on the Ground
Michael Salyers, product marketing manager at Komatsu, has been in the machine control business for the last 12 years, working for a GPS distributor. His main focus remains on the machine control portion of operations. Komatsu has partnered with Topcon Positioning Systems, and it also works well with Trimble Positioning.

&#;Komatsu is integrating the machine control technology in their machines so the blade is controlled automatically,&#; he says. &#;Electronic information can be used from the design engineers, plugged into the machine, and this allows the machine to guide itself to the design grade. It&#;s a major benefit for grading applications in that not only are we doing a lot of the rough grading, but we are fine grading at the exact same time. We&#;re able to get to grade faster.&#;

It is also possible to get to grade more precisely than ever before. In the days of stringlines and grade stakes, the operator often had to guesstimate where the grade was between the stakes. He would also have to rework a lot of areas in order to get there, and there was multiple checking going on behind the machine. Sometimes the machine would cut too low, cut too much material out, and the material would be have to be backfilled in that area.

&#;Whereas at first the operator was in a cut environment or situation, now he&#;s in a fill situation. Now, in essence, he&#;s double-handling material, and prior to this technology that would happen often. With integration of the GPS machine control with a machine-both in the grading position and horizontally-the machine is able to both get to grade and it&#;s going to help prevent those undercut situations where we are going to be cutting out too much material and have to have multiple reworks. The machine is also able to be navigated to the exact location where a feature may be installed, created, or needs to be worked.&#;

For company owners, the cost of materials continues to increase, according to Salyers. The cost of moving materials continues to increase with fuel costs and the wear and tear on machinery. The less time you can handle machinery the greater your profitability.

With this technology, operators are also able to guide the edge of the blade to the exact back-of-curb and be able to cut the road to the exact width that it needs to be cut. No overcut area is being provided.

&#;Many times, prior to the development of this technology, the subgrade would be moved, massaged, and they would get it fairly close; there would be highs and lows, dips and valleys,&#; says Salyers. &#;What would happen to those dips and valleys is that they would be filled in with the high-dollar material, the concrete and asphalt. In turn, that is costing the state or municipality more money because the contractor is going to get paid by the ton.

&#;A lot of state entities are now going to a fixed-cost bid project where they&#;re saying, This is how much money we have, this is what we want to do, the contractor needs to come back and tell us what the design is, what can they do for this. And the state specifies the tolerances, what they want to see, but they&#;re leaving it up to the design firms to come back to them and say, This is what we can do.&#;

This is one way the states are saving some money, by being able to complete some of these projects, and a lot of them are requiring machine control, according to Salyers. This is becoming a main portion of the savings: Not only are they working with the tier for engines and those requirements-the mechanical portions of the equipment-but they&#;re also integrating this new intelligent function that is driving the cylinders, driving the blade, and allowing the operator to have more of a smarter machine.

As with the automotive industry, many of the new dashboard features are being integrated into the construction industry as well. With the automatic blade control, the operator can now get to grade quicker. &#;Remote job-site management may be possible, where the office is able to monitor the machine&#;s progress on the job site remotely, being able to do that on multiple machines and getting relayed back to them real-time information so that they know what the production of the machine is in real time.

&#;Having the most up-to-date information is making the machine more productive than it ever has been. Smoothness is incredibly important when it comes to roadway surfaces, because the smoother it is, the less it will be affected by heavy truck traffic; the pitted road is not going to last as long. Abuse from very small bumps in the pavement radically decreases the life span of the pavement. The smoother the pavement, the longer it lasts. Entities don&#;t have enough money to continue to rebuild these roads on a frequent basis.&#;

Every GPS-machine-control manufacturer has kits available that enable users to retrofit any of the existing asphalt surfacing machinery. There are so many machines out there that don&#;t have machine control. But the ability to take a machine that doesn&#;t have the controls and install machine controls makes the useful machinery that you had before even more useful. Probably about the only disadvantage you have is that the machine isn&#;t as fine-tuned as a newer machine.

&#;But still, the payback we have seen in talking to a lot of customers is that they see payback in 12 to 18 months on the entire system. They&#;re seeing in about a year the system paying for itself. I&#;ve even had conversations with many contractors who&#;ve said they&#;ve paid it back in that first job. Completing a job without any staking, without any string lines, without any rework, you are reducing a four-pass area to a two-pass area. That&#;s a 50% reduction in passes. You can really make up a lot of that initial cost very quickly.&#;

Komatsu has established an ICT division specifically for intelligent machine control, with four members on the team. The models they are integrating with the Topcon technology direct from the factory provide them with an enormous benefit to be able to take on many of the models that are current and simply plug that Topcon equipment in. There&#;s going to be very little to do on the machinery to make it ready for the 3D positioning for their job sites.

&#;This can be used on many projects, from a commercial development to a residential subdivision; there are so many uses that it allows the contractor to be productive and move job-site personnel to other tasks on the job, essentially a machine free from any ground support. No one needs to be following this machine or giving them information to grade to on the ground or insuring that the machine is doing what it needs to do. This technology has reduced the number of grade checkers, surveyors.&#;

Keeping an Inventory
The problem of tight tolerances, especially without the current technology in grading equipment, has been among the greatest challenges, according to Wade Porter, motor grader application specialist with Caterpillar. &#;Meeting the &#;˜mm&#; accuracies that job specs require is extremely difficult,&#; explains Porter. &#;This requires a tremendous amount of skill, some acquired through years of experience and training and some that is just plain natural, like the ability to see grade. These require a motor grader that provides precise, consistent, predictable blade control via superior performing hydraulic systems.

Are you interested in learning more about Bulldozer Steering System? Contact us today to secure an expert consultation!

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&#;The design ingredients of the implement hydraulic system are critical. They must be designed specifically for motor grader operations, which is why Caterpillar designs and manufactures its own hydraulic valves, ensuring tight control over design and manufacturing specs for industry-leading results. This is one of the main reasons that contractors are willing to pay a premium price for a new or used Cat grader.&#;

Obstacles-curbs, medians, light poles, hubs, grade checkers, and other equipment-prove a test on job sites. In addition to increasing stress, causing visibility issues, and increasing time, having to maneuver around obstacles can introduce unwanted machine movement, causing grade change or elevation change of the moldboard as the result of articulated turns.

The various material types used on a job site introduce various challenges, such as rocky versus fine. Inconsistent material types on the same job site can also create headaches for operators, according to Porter. &#;Compaction and moisture content as well as aggregate moisture have to be optimum to ensure proper compaction-if moisture isn&#;t optimum, it increases and costs, as it could drive additional material dumps or mixing time.

&#;Tire type and pressure: radial versus bias, old versus new, tread pattern. All these variables can introduce challenges in finish grade operations. Too stiff of a sidewall can create too much vertical movement. Too soft of a sidewall can cause lateral movement. Inconsistent tire pressures can negatively impact the ability to reach final grade as well.&#;

Timing matters, as time, of course, is money. The pressure to meet daily square-foot finish adds stress, which creates operator discomfort. Bottlenecks can also create challenges, as material moisture can change over time, so waiting on other support equipment can create challenges. An example of this would be waiting on dump trucks or waiting for the dozer to knock down piles and spread material. Material dumps and spreads and even spreads are key.

&#;If support equipment isn&#;t present, the grader must be used to spread the material dumps,&#; adds Porter. &#;Depending on how well or how poorly the belly or end-dump driver can effectively spread their loads, could create significant challenges, driving up time and increasing costs.

&#;Machines well maintained including cutting edges, moldboard slide rails, cylinders, articulation joint, same size tire, same age tire (tread), same tire type all prolong the life of the equipment.  The ability to maintain the wear points on a grader is critical. If wear points are difficult to maintain, work doesn&#;t get done and may takes longer to get done driving up costs.&#;

If the grader isn&#;t maintained properly, the ability to finish will suffer. Caterpillar graders have easily accessible wear inserts with shim-less designs wherever possible to minimize time. Cat&#;s drawbar and slide rail adjustment points are simple and easy and provide the capability for the operator to make the adjustments in the field, eliminating the need for service truck.

Sometimes grader operators might not know they have to finish until the afternoon, for example, when they are told to head to a different location on the job site. They might need to make some quick adjustments to pull up the slack in these key areas. This is a real advantage with the Cat design. In addition, the cylinder rod mounts need to be kept tight, which is why Caterpillar provides replaceable wear inserts and bushings in the lift cylinders and link bar.

Grading machinery must be the right size for the work. Work in tight areas like parking lots requires a smaller, more agile grader. Working in larger road projects requires heavier graders to spread material faster and in more compact areas, provide greater blade down force.

Too small a blade can create a lot of challenges, according to Porter. &#;Crumbs flying off the toe, cast materials beyond tandem tires; too long of a blade will be more sensitive to minor corrections laterally.

&#;A comfortable operator is more productive-period. If fatigue sets in, concentration is negatively affected which can cause safety issues as well as make it much more difficult to meet that tight &#;˜mm&#; accuracy. Cat graders provide simple, intuitive electrohydraulic joystick controls that decrease operator fatigue by as much as 50% and decrease hand/wrist movement by as much as 78% as compared to conventional control systems.&#;

Operators have to be able to see. They need to be able to see the objects around them-including machines, people, grade stakes, blue tops, curbs, or manholes-for productivity and for safety reasons. Obstacles wreak havoc on a finish grade operator. Any distortion in the window glass can hamper the operator&#;s ability to finish. This is why many finish grade operators run with the doors or windows open, so they have a clear line of sight to the material/surface they are working. Cat redesigned the M Series cab with angled doors to promote visibility to the work tools as well as the general surroundings.

Technological advancements have been paramount in improving finish grade operations, from machine operation, to project management, to cost savings. However, it can also create certain challenges. Seasoned motor grader operators tend to resist change, so if they don&#;t adopt this technology, their resistance can be a problem.

&#;Grader operators also need to understand how to use the grade control systems and be able to troubleshoot them when there is a problem,&#; explains Porter. &#;Certain times of the day, satellite signals are down. If a grader operator doesn&#;t know how to recognize this, their grade accuracy is shot for that time frame. There are many do&#;s and don&#;ts associated with technology. If these pitfalls are unknown, a grader operator will suffer dramatically.

Motor graders are finishing machines. Small or mid-size TTT&#;s (D4-D6) help knock down piles and spread. SSL or BHL help clean up and reach places that a grader can&#;t reach, such as parking lots in certain areas. Compaction work with roller must be done before final finishing can be done with the grader. Paddle-wheel scrapers with the ability to collect large windrows without scattering material provide compaction, and can also spread material in light areas

&#;The earliest &#;grade&#; technology that I can recall is the SlopeMeter No. 2 level gauge mounted on the front frame of a grader,&#; adds Porter. &#;Laser systems were some of the first &#;˜blade control systems&#; to hit the market. Cross Slope and Sonic I believe, were next in line, and then GPS systems came after that (to the best of my knowledge), using satellite communication. The Universal Total Station (UTS) is the latest development out.

&#;The introduction and advancement of blade control technology has been a game changer. Speed time, fuel savings, accuracy improvements, reduction of resources, reduction of passes, reduced waste, saving money, maximizing asset utilization, less operator fatigue, material savings, jobs done quicker, increased revenue, improved safety, better project management-more competitive bidding, better fleet coordination-communication, reduction in labor time, and the ability to lay jobs out remotely are all benefits from this technology. Cat offers a full suite of Cat Grade Control and AccuGrade systems to complement our motor grader product line. These devices range from simple Cat Grade Control Cross Slope, Sonic, Laser and GPS, all the up to the most sophisticated UTS systems.&#;

The reduction of external hardware such as masts-as they are designed on most products today-might be something that would improve the equipment, according to Porter. Such external hardware serves as an obstacle, negatively affecting operator visibility and machine versatility (limiting blade reach in some cases). Masts are also targets for theft, and it takes time to remove equipment at the end of the shift everyday and then reinstall it every morning.

Another problem comes from unwanted rotation. Depending on brand and system, certain hydraulic functions can throw off accuracy by as much as 1% to 2%. Most manufacturers of blade control systems use a single mast in conjunction with the grader&#;s main fall and cross-slope sensors, which are fluid based, so any unwanted rotation or machine listing, for example can throw off the system&#;s accuracy. &#;Caterpillar and Trimble are the only manufacturers to offer dual-mast GPS systems that eliminate the need for these fluid sensors,&#; says Porter. &#;They in turn increase accuracy and machine versatility.&#;

Many grade control users don&#;t realize that single-mast GPS or UTS systems used on motor graders are only at their highest accuracy when the machine has no articulation or wheel lean. These common MG operation practices introduce inaccuracy into single-mast systems that rely on cross-slope sensors to know where the other side of the moldboard is located.

Cat and Trimble dual-GPS systems track both sides of the moldboard, and therefore account for this unmeasured rotation created by articulation or wheel lean. If you are using a single-mast system, remember that, for it to be the most accurate, you must keep your grader in a straight line, with no articulation.

Cat graders are very &#;vertically&#; integrated in their design, incorporating such Cat-designed or branded components as engines, transmissions, final drives, hydraulic valves, and hoses. This vertical integration ensures proper design and control for the best quality and reliability.

&#;We make sure that all hardware and software are properly integrated into the machine, so our dealers have minimal shop time in order to get a grader properly setup prior to delivery. It also gives our customers a one-stop-shop for all their machine and technology needs, saving them time, money, and headaches that come with having to make two calls-one for the machine and one for the technology.&#;

The Cat M Series graders provide the operator with electrohydraulic joystick controls, increasing productivity while improving comfort and decreasing fatigue levels. Machine transmission and steering controls are incorporated in the joysticks so operators never have to take their hands off the controls to operate the grader, making for safer operation. The electrohydraulic technology enables automation of certain hydraulic functions, such as Cat&#;s articulation return-to-center feature, which returns the grader to a straight frame position with the press of one button. An angled door cab design opens up new lines of site for greater visibility of the work tools, as well as all things around the machine, increasing productivity and improving job-site safety.

Keeping Control Operations Easy
To avoid cost overruns on grading projects it is important to grade various levels of materials accurately. For instance, if 6 inches of concrete is called for in a large building pad, the general contractor is expecting that spec to be fully met; but the subcontractor of the building pad doesn&#;t want to incur extra costs by placing any more of the most expensive material than required to meet spec. He wants the initial lower cost base materials to be laid down exactly to grade.

&#;This focus on cost control is one of the main challenges contractors face today, in addition to the challenge of retaining his best people,&#; explains Gary J. Atkinson, Volvo Construction Equipment&#;s southeast US district manager for road machinery. &#;A motor grader operator is regarded as one of the most senior individuals on any particular grading job site. Contractors are taking ever closer looks at the machines they purchase in order to provide their operators with the safest, most comfortable and productive work stations available.

&#;For example, looking back a few decades, it was virtually unheard of to see equipment with factory-installed air conditioning. Nowadays I can&#;t recall when we&#;ve built a motor grader that didn&#;t have full air conditioning, cab air filtration, and pressurization.

&#;Beyond that, our machines now come standard with telematics, enabling machine owners to stay in touch with the machines electronically via satellite or cell service direct to their desktop or portable computers. This enables us to coach their operators on techniques to further enhance efficiency and productivity.&#;

One of the biggest recent advances involves integrating most of the grader&#;s control functions within the Volvo&#;s optional joystick controls. This system enables operators to control all blade functions, steering, articulation, transmission gear ratios, forward-reverse, and, when equipped with automatic grade-slope control, also operate those functions from the joysticks.

This is all done without the operator having to take his hands off of the joystick controls, thus reducing the operator&#;s use of major muscle groups literally hundreds or thousands of times per day. With a conventionally controlled grader, operators reach for the steering wheel, use their hands to actuate the various blade controls, articulation, and wheel-lean levers, and shift the transmission gear ratios and forward-reverse direction.

Beyond the joystick controls, Volvo has taken things to an even higher level with the Memory Gear feature, which enables operators to preset forward and reverse gears and-for repetitive direction changes such as when working a building pad-to shuttle shift directly to those gears without clutching or braking at the end of each cut.

&#;All combined, it&#;s an amazingly productive system,&#; says Atkinson. &#;Another recent area of focus has been on reducing the amount of tolerances and movement throughout the blade/circle support system. This enables the operator to hold even more precise control, whether operating manually or with automatic blade control, according to Atkinson. These latest systems not only hold tighter tolerances but reduce maintenance costs, contributing to lower operating costs and greater productivity.&#; 

&#;All combined, it&#;s an amazingly productive system,&#; says Atkinson. &#;Another recent area of focus has been on reducing the amount of tolerances and movement throughout the blade/circle support system. This enables the operator to hold even more precise control, whether operating manually or with automatic blade control, according to Atkinson. These latest systems not only hold tighter tolerances but reduce maintenance costs, contributing to lower operating costs and greater productivity.&#;

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