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Read These 6 Key Points! You Can Know Which Plate Bending Machine Is the Best?

3 Roller Bending Machine

About Plate Bending Machine

Before purchasing a new plate roller ( Plate bending machine ), companies must make a serious and responsible assessment of their purchases. Adding new equipment obviously requires cost considerations. However, if the new equipment is not as efficient as the old equipment, our years of industry experience remind you that although the price is a very important factor in the procurement process, we need to pay more attention to the equipment’s operation convenience, reliability, and production capacity. And equipment maintenance, choose the correct and reasonable cost-effective Plate bending machine to meet our growing production needs.

How to correctly select the Plate bending machine

We have summarized the following six points for reference in the procurement of enterprise coiling equipment:


Do you have a special shape for bending?

For example, do you need a Plate roller that has a metal cylinder with almost no straight edges?

Generally, when the 3 Roller Bending Machine bending the drum, when the metal is fed into the pre-bending, the center distance of the two lower rollers cannot be bent, so the straight section width of the 3 rollers bending machine is = Half the center distance of the two lower rolls.

When the 4 Roll Plate Roller is wound into a drum, its working principle will reduce the straight edge to 1.5 times the thickness of the sheet, that is, there will be a straight edge, so that the second half of the rolled semi-finished product needs to be processed. Only after entering the next process flow, increasing production costs。

The special process design of our four-roller plate bending machine makes the drum almost no straight edge, and the processed metal drum manufacturer directly performs welding without secondary processing, thus eliminating the processing cost.

Its processing capacity is also very powerful, up to 150 workpieces per hourThis type of coiling machine has been used in China’s military industry many years ago, the US water heater, a large fire equipment factory in Shanghai and a water heater factory in the Americas.

For example, do you consider expanding your business and need to process conical or parabolic products?

We have a CNC 3 roller bending machine, which has a larger upper roller diameter than the lower roller and a perfectly balanced winding torque for precise conical bending capability.It allows the material to produce a perfect taper in 5 seconds, which is ideal for rolling conical or parabolic models.

Advantages: Effectively eliminate the surface wear of the material plate, thus eliminating the edging process at the tip of the cone.

Sheet material

One of the most important factors in the design of the plate bending machine is the material of the material.

Bending the same thickness of the material sheet, the sheet metal with high yield strength, the pressure of the coiling machine must be high;

If it is not taken into account, the processed material will be deformed by flaws or corners.

Today, the strength of steel is much higher than before, and the pressure requirements on the rolling press are also increased.

ASME (American Society of Mechanical Engineers) has also developed standards for various types of steel, such as A36, A516 Grade 70, Hardox 400/500 series, and AR 200/300 series.

The processing pressure of the corresponding plate bending machine for different specifications of steel is also different.

The temper brittleness of the metal, the yield strength, and the use of the sheet are important factors that the coiler manufacturer needs to consider.

This is especially important since the reforms in the steel smelting industry over the past few decades.

Detailed discussion and successful procurement

You must let the manufacturer of the plate roller know all the details of the sheet metal processing you know, the type, width, thickness of the sheet metal to be machined, the diameter of the workpiece, the tolerance, the shape, and so on.

For example, the pressure vessel industry often has requirements for roundness error of diameter less than 1% or no flaw.

If the power of the selected plate bending machine is too high, a cylinder phenomenon will occur and the product will be directly unqualified.

As a manufacturer of plate bending machines, it is necessary to take into account all the needs of the buyer, more importantly, those special requirements, as well as some easy to ignore processing details, in order to provide buyers with a cost-effective plate bending machine.

Note: Purchasing must also find a manufacturer who is willing to sit down with a detailed discussion. There are many details that are important, but they are often overlooked by the buyer. At this point, the responsible manufacturer must confirm these details.

Model selection

We emphasized that the purchase of the plate roller communicates with the manufacturer to inform the type, width, and thickness of the processed sheet metal.

Because before we purchase, we need to determine the quality requirements of our final product: the reasonable material and thickness it needs will not increase our cost.

The manufacturer of the plate bending machine should also design and manufacture the corresponding plate bending machine according to these parameters. This can not only save a lot of time, but also greatly reduce the rework rate.

Here we present an industry experience to you: the best benefit of the plate bending machine is 50% of the highest processing energy.

In other words, if you often process sheet metal with a thickness of 15CM, in order to maximize the benefit, we recommend that you choose a plate roller with a maximum processing capacity of 30CM.

A big problem with the operation of the coil is that the size of the sheet is problematic. Apart from this problem, most of the problems are concentrated on the pressure of the lower roll to the upper roll.

If a coiler capable of bending a 200mm grade sheet is rolled into a 120mm web, a certain cylindrical distortion will occur. But this often leads to big troubles.

But the biggest trouble is when the plate thickness reaches the limit of the plate roller. Unless you use a gasket, the entire machine can only be sold second-hand.

On the contrary, when a thin plate bending machine with a thick plate is designed to roll a thin plate, the middle of the plate is stronger than the surrounding.

Thus, unless a gasket is used, the hourglass deformation will not be corrected.

Thickness and diameter

Keep in mind that the best precision machining range that all plate rollers can achieve is half the design standard.

The smaller the diameter of the workpiece we are machining, the greater the rolling pressure required.

Therefore, when we design a 3 roller bending machine with a small diameter plate, the position of the upper roller of the plate roller and the structure of the rolling mill are special issues that we need to pay attention to. They are the size of the opening during the winding process. The most important factor.

In general, when designing the 3 roller bending machine, the diameter of the upper roller determines the maximum diameter of the circle, and its coefficient is 1.5 times. For example, when we use the upper roller of 1000mm diameter, then the 3-roll plate bending machine The maximum coil inner diameter is 1500mm.

With a special design, we can increase the maximum effective diameter range by 30%.

Productivity factor

We will process a very large diameter metal cylinder whose weight will twist the cylinder, resulting in a product that does not require a diameter. In this case, we need a plate roller with a sheet support function.

If the workpiece we process every day is a large number, we should consider the plate rolling machine with automatic production line, so that it will improve our work efficiency. We have configured this on the 2 Roll Urethane Plate Bending Machine and 4 Roll Plate Roller. Some devices.

Sometimes our products are diversified, various shapes of workpieces, our CNC control unit can store all your processing requirements and save processing time. 

We will adopt a monolithic structure, a simple basic plate bending machine design, a mobile-friendly device with an integral chassis, no need for anchor bolts, a simple foundation, and a convenient movement.

In conclusion:

Many buyers tend to ignore many key factors, which ultimately leads to unsatisfactory equipment purchases, causing many problems in production.

When you purchase the coiler, please pay attention to the above suggestions, we believe that you will purchase the equipment you are satisfied with.

Further reading

2 Roll Urethane Plate Bending Machine

A 2-roll plate bender is capable of creating cylinder shapes, semi-circles, and other basic curved shapes. Machines consist of two rollers between which the sheet metal is passed, and then the force of the rolling causes the metal to bend into the desired circular shape.

Some models do provide the ability to create flanges, but they do not support cones or other detailed geometric shapes.

3 Roller Plate Bending Machine

3 roll plate benders can perform the same functions as 2 roll bending machines.

The key difference is that, with 3 roll bending, you have greater control over the desired output shape.

The most common ones support single-pinch bending functions, which require inserting the sheet metal twice to pre-bend both ends.

However, there are also double-pinch models available to make pre-bending processes on both ends easier, faster, and more precise.

4 Roll Plate Roller

The biggest benefit a 4 roll plate bender has over 2 roll and 3 roll bending machines is it makes bending processes easier and simpler.

These machines are fully capable of performing the same functions as 2 or 3 roll machines. Some models also can perform similar functions as a press brake.

Furthermore, 4 roll benders make it possible to create rectangular and square-shaped output by carefully bending the metal in specific areas as it passes through the machine.

Geometry plate benders are also capable of creating a variety of geometric shapes, like cones, and can be used to create 2 roll and 3 roll bending output.

Which Plate Bending Machine Is the Best?

One of the key decision-making factors you should consider is not only what type of plate bender will meet your current needs, but which could also satisfy future business needs. For instance, if you currently need a machine that can crank out large volumes of cylinder-shaped materials, all four types of benders can perform this task.