Slitting and rewinding is one of the key services that we provide here at SJA FilmTech, so our team is better placed than most to help answer the question ‘what does a slitter machine do?”.

If you want to learn more, please visit our website.

Our experts have provided a simple breakdown of the slitting and rewinding procedure, along with answers to some of the most burning questions when it comes to slitting machines.

The role of a slitting machine

The mechanism used for the slitting process is often referred to as a slitter, a slitting machine or a slitter rewinder. To put things simply, the main role of a slitting machine is to convert (slit) papers, film and foil materials so that large rolls of these materials can be cut into narrower rolls.

A slitting machine consists of three main parts; the unwind, the slitter and the rewind. By feeding a large roll of your chosen material through the slitter’s unwind, your material will then unwind and be slit into various widths, before being rewound into cores of various widths.

A good example to portray the slitting process in everyday life would be when using an ATM machine. The receipts that you receive from an ATM machine were originally part of a master roll, however, after going through the slitting process they are divided into many smaller rolls, which are eventually used to supply a receipt for your transaction.

What is Slitting Steel?

The process of slitting steel involves wide steel coils being fed through a slitter machine, which cuts the material into narrow strips. From this, the cut strips (also referred to as strands) are then recoiled to create a narrow slit coil.

What is a Slitting Machine Operator?

Slitting Machine Operators bear the responsibility of ensuring the quality of materials passing through the slitting machine. The role involves managing, setting up and operating slitting machines so that they slit, bend or straighten sheets of materials such as paper and metal, among others. Specifically, a slitting machine operator will observe pre-defined tolerances and examine various final products.

For more information on the expert slitting and rewinding services that we can provide your company with, visit our dedicated slitting and rewinding page.

Industry Leading Slitting & Rewinding Services

At SJA FilmTech, we are proud to supply a variety of different businesses within the converting industry with our leading slitting and rewinding services.

Find more information on the expert slitting and rewinding services available, or give our team a call on 01282 774364. If you can’t get in touch with us over the phone right now, you can request for us to call you back at a more convenient time by completing our quick and simple online contact form.

What is Metal Slitting Machine? and How It Function?

PUBLISH DATE：2023-05-05

What is the Metal Slitting Machine? 

The specific machine that is used for the purpose of roll slitting is known as the metal slitting machine, a slitter, or a slitter rewinder. These different names can be used interchangeably when referring to the same machines.
Also referred to as rewind slitting or log slitting, roll slitting is a type of shearing operation that can cut large rolls of materials into narrower coils. The term log slitter is in reference to those days in the past when sawmills were used for cutting huge log pieces into smaller chunks. These sawmills were also used for cutting bigger iron rods to relatively smaller sections.

What is Slitting?

Slitting is a process in which a roll of material is cut into narrower rolls or strips. The potential workpieces are noticeably thin measuring only at 0.001 up to 0.215 inch. These can also be machined in the form of sheets or rolls.

It is often used in the manufacturing of paper, metal, plastic, and textile products. Slitting can be performed using a variety of different types of machines, including rotary metal slitting machines, which use a rotating blade to cut the material, and razor metal slitting machines, which use a series of very thin, sharp blades to cut the material. 

The width and number of strips produced during the slitting process can be adjusted by changing the size and number of cutting blades used. Slitting is often used as a finishing step in the production of many types of products, such as adhesive tapes, labels, and packaging materials.

What does the Metal Slitting Machine consist of?

The machine typically consists of the following components:

1.    Unwinder: This is the portion of the machine that holds the roll of material that is to be slit.
2.    Guiding system: This system helps to guide the material as it is being unwound, ensuring that it stays straight and centered as it is being slit.
3.    Cutting system: This is the portion of the machine that actually cuts the material. The cutting system can consist of a variety of different types of blades or knives, depending on the type of material being cut and the desired width of the slit.
4.    Rewinder: This is the portion of the machine that winds the cut material into smaller rolls.
5.    Control panel: This is the portion of the machine that allows the operator to control the speed of the unwinding and rewinding, as well as the width of the slit.
6.    Safety guards: These are in place to protect the operator from the moving parts of the machine.

Functions of Metal Slitting Machines

The primary function of a meatal slitting machine is to take a large roll of material and cut it into smaller rolls of a specific width. The machine is typically used in industries such as paper and packaging, textiles, and converting, but it can be used for a wide variety of other materials as well.

You will get efficient and thoughtful service from Eastsign.

Some specific functions of meatal slitting machines include:
1. Cutting rolls of material into smaller, narrower rolls of a specific width.
2. Winding the cut material into smaller rolls.
3. Accurately controlling the width of the slit to ensure that it meets the desired specifications.
4. Operating at high speeds to increase productivity and efficiency.
5. Handling a variety of different materials, including paper, plastic, fabric, and more.
6. Ensuring the safety of the operator by using guards and other safety features.

4 common industries that use Slitting Machine:

Metal slitting machines are used in a variety of industries, including the paper and packaging, metals, textiles, and plastics industries.

1. In the paper and packaging industry, metal slitting machines are used to cut rolls of paper or film into narrower rolls or sheets.
2. In the metals industry, metal slitting machines are used to cut sheet metal into narrower strips. 
3. In the textiles industry, metal slitting machines are used to cut fabrics into narrow strips or ribbons. 
4. In the plastics industry, metal slitting machines are used to cut plastic films and sheets into narrower rolls.

Types of Slitting Machines

There are different types of slitting machines available that can be used for metal slitting. The most common types of slitting machines are:

1.    Loop Slitting Machines: This type of slitting machine is used for processing softer materials such as paper, film, or plastic. The machine has a loop control system that maintains the tension on the material as it passes through the slitting blades.

2.    Pull-Through Slitting Machines: These machines are used for processing harder materials such as metals. In this type of slitting machine, the material is pulled through the slitting blades by a set of powered rollers, and the blades make the cuts as the material passes through.

3.    Rotary Shear Slitting Machines: In this type of machine, a set of rotating knives or blades are used to make the cuts in the material. The blades rotate in a circular motion, cutting the material as it passes through.

4.    Crush Cutting Machines: This type of machine is used for cutting softer materials such as foam, rubber, or paper. The machine uses a set of rollers to crush the material and make the cut.

5.    Razor Blade Slitting Machines: This type of machine uses a set of sharp, razor blades to make the cuts in the material. The blades are mounted on a rotating shaft and cut the material as it passes through.

The type of slitting machine that is used will depend on the type and thickness of the material being cut, as well as the desired width and number of strips.

Conclusion

There are several factors to consider when evaluating whether a slitting machine is good or not. Here are some of the key factors to look for:

1. Accuracy: A good slitting machine should be able to make accurate and consistent cuts, without any variations or deviations in the width of the strips. This can be determined by inspecting the quality of the finished strips and measuring their width using a micrometer.

2. Speed: A good slitting machine should be able to process the material quickly and efficiently, without compromising on the quality of the cuts. The machine's speed can be evaluated by measuring its production rate in feet or meters per minute.

3. Ease of use: A good slitting machine should be easy to set up, operate, and maintain. The machine should have a user-friendly interface, clear instructions, and should not require a lot of training or specialized knowledge to operate.

4. Durability: A good slitting machine should be built to last, with high-quality components and sturdy construction. The machine should be able to withstand the rigors of continuous use and should require minimal maintenance.

5. Safety: A good slitting machine should be designed with safety features to prevent accidents and protect operators from harm. The machine should have safety guards, emergency stop buttons, and other safety features to minimize the risk of injury.

6. Customer support: A good slitting machine should come with reliable customer support, including technical assistance, training, and spare parts availability.

By evaluating these factors, you can determine whether a slitting machine is good or not and whether it meets your specific requirements for your application.

We are the supplier of metal slitting machine in Taiwan, if you have any question, please don’t hesitate to contact us.

Contact us to discuss your requirements of Slitting Machine Manufacturer. Our experienced sales team can help you identify the options that best suit your needs.