What Is a Roll Forming Machine?

What Is a Roll Forming Machine?

roll forming machine

A roll forming machine is a precision tool that uses rollers to form sheet metal into an ordered product. The rollers, which are powered drive rolls, are precision-contoured to create the ordered form. The product is then sheared to its finished length and shape. This machine is often used to form metal parts and components, including packaging, automotive and packaging equipment, and more. In addition, roll forming machines can produce several different kinds of parts, including tube, sheet, and foil.

Main parts

A roll forming machine has several different parts. The machine uses a rafted system, in which the tooling is loaded onto shafts. This type of roll forming machine allows fabricators to change out individual tooling without reloading the machine. Changing tooling manually involves a risk of mistakes and introducing end flare. These two aspects are key to the quality and consistency of parts. Read on to learn more about the main parts of roll forming machines and how they affect production.

A side roll forming stand consists of two bearing housings. These housings have connecting rods attached to the top and bottom crossbars. The height of each shaft is controlled by screws located on the top and bottom crossbars. This system is also used to change rollers, if necessary. If the side stand is not correctly mounted, the shafts will not be parallel to the travel of the machine. To change the rollers on a roll forming machine, remove the operator’s side stand.

A roll forming machine has three main components: the stands, the rollers, and the tooling. The first one supports the rolls and connects them to each other. The last part, known as the crunch, is used to finish the part. The shaft is made of steel and is often divided into two sections for ease of installation. Typically, a roller has an outer diameter of 40mm to 120mm, but this can vary depending on the profile.

The second type is the angle roll forming machine, which uses high-powered temperatures to bend metal into intricate shapes. This machine is used to create structures and puzzle pieces. The angle roll forming machine is an excellent choice for a high-volume operation. It also has the flexibility to produce products of any length. These machines are perfect for producing complex shapes and cross sections. If you’re looking for a machine to shape metal, consider contacting a manufacturer.


The benefits of roll forming are numerous. This process is highly productive, and is ideal for the production of high volume profiles, such as rolling shutters, metal ceilings, and pipes. Another advantage is that the process is repeatable, and it can be used with a wide variety of materials, including high strength steels. Depending on the material used, it can be configured to accommodate a wide range of bend radius and springback.

The left-side wheel holder of each forming roll set has a plurality of through holes 4421 around its border area. The detection wheel is connected to a photo sensor module installed in the left-side wheel holder. When the detection wheel rotates with the pivot shaft, the photo sensor module emits light toward the through holes to measure the amount of rotation of the detection wheel. The sensor module controls the turning angle of the motor, which turns the wheel brackets on the left-side base through 180 degrees.

A roll forming machine functions by passing a sheet of metal through successive sets of mated rolls. As the sheet is passed between the rolls, each roller adds a shape to the metal, until the desired cross-section is formed. The process is repeatable and consistent, making it an excellent choice for producing high-volume metal components. Once a piece of metal has been formed, it is usually rolled through another machine to refine its shape.

The advantages of a roll forming machine are numerous. Roll forming is an effective assembly line, can cut large quantities of metal, and integrate secondary processes like welding. The profiles produced by this process resemble those of aluminum extrusion. They can be a variety of shapes, such as Z-shape and C-shape. The sheet-transfer roll sets can be adjusted to achieve the desired shape. You can adjust the pitch of the forming rolls according to the thickness of the sheet-material.


In addition to the above applications, a roll forming machine can be combined with different technologies. Depending on the part shape and desired result, the punching operation may occur before or after the roll forming process. This process is most efficient in high-gauge material, and allows the part to be processed without deformations. A roll forming line connects the machine to other machines in the manufacturing process, allowing the part to go directly from the coil to the finished product. In addition to this, the material can be packed and delivered directly to the final storage location.

In most cases, roll forming is done using long strips of metal in coils. This process is fast and has a relatively low labor requirement compared to stamping and other methods of metal working. The roll forming machine is a versatile piece of equipment that allows the user to incorporate additional processes into their production lines to minimize labor and increase productivity. In addition to reducing labor costs, roll forming can produce finished parts ready for distribution. The additional processes can include punching, notching, and perforating, which are usually separate processes with stamping or other methods.

In addition to the advantages of roll forming, this machine allows for the production of complex cross sections. The production rate of this machine depends on the material thickness, bend radius, and number of stations required for the process. For example, a machine with a bend radius of fifty times can produce parts at approximately 85 feet per minute through eight stations. A machine with more than twenty stations is capable of reaching a production rate of up to 500 feet per minute. Depending on the type of metal and the number of stations needed, a roll forming line may be limited by space constraints and shipping capabilities.


The costs of a roll forming machine vary, but there are certain general guidelines that can help you get the most out of your investment. For instance, the cost of a single-spindle roll former can range anywhere from $85,000 to $1 million, depending on the model you choose. For a more accurate estimate, read the “Young’s paper on roll-forming equipment”.

A roll forming machine produces one to three percent scrap for each production run, which is a very low amount when compared to other metal working processes. This means less scrap means less money, which is important for companies that work with expensive metals. Another major drawback of bending metal is residual stress, which negatively affects repeatability. With roll forming, you’ll be able to keep residual stress and weld seam control.

Another important consideration when purchasing a roll forming machine is its size. While an entry-level rollformer may be affordable, a hydraulically-driven machine will increase speed and automate shearing. You can also find an entry-level rollformer with manual shears. A roll forming machine will last a long time as long as it’s maintained. However, it’s best to avoid purchasing a used rollformer, as rusting can make a machine unusable.

Other costs of roll forming machines include the cost of tools, which are necessary for the process of rolling metal. The design of the tooling also affects the cost of the roll forming machine. The design of a tool should take into account the complexity of the setup. You may need to swap out tools at certain stations. Additionally, the machine may require adjustments to accommodate a variety of tooling. If you’re making several parts, you can add another layer of costs.


If you notice any of the following problems on your roll forming machine, the first step in troubleshooting is to determine the exact cause. To identify what’s causing the problem, check the machine’s alignment by using a straight edge. Check whether the machine and mill faces are aligned. In addition, check whether the tooling is creating any force. Any of these problems could be caused by a number of different reasons, and can be fixed.

Before you take the machine to a job site, check it for any problems. Troubleshooting a roll forming machine is vital because any downtime will cost you money. Without a working line, customers and revenue will suffer. The main goal is to restore production to the line. This is much easier when there are mechanical issues than if the problem is an electrical or software programming issue. The more serious the damage is, the longer the downtime will be.

Make sure to properly mix coolant and water. Check the recommended levels of dilution for your machine. Too much coolant oil can damage the part finish and make it too slippery for the machine’s roll forming line. Too much water will damage the machine’s tooling and joints. You should contact your supplier to learn how to fix this issue. If the problem persists, you can try a few simple fixes.

Alignment. One of the most overlooked areas of troubleshooting a roll forming machine is the machine face. When the face is not aligned properly, the result can be a product with a poor quality. A simple check with a straight edge on the tooling will indicate whether or not there is a problem with machine face alignment. If this is the case, you’ll need to remove the tooling and fix it.

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