Say goodbye to Welding, Grinding, and Finishing!
ERSM’s Corner Former streamlines your production process, eliminating these traditional steps and significantly cutting costs.
Improve efficiency and deliver high-quality results faster with this innovative, time-saving solution.
With the ERSM Corner Former, clean and sharp corners are formed with ease.
In just three simple steps — flaring, forming, and trimming — high-quality corners can be produced directly on the press brake in minutes, eliminating welding, grinding, and time-consuming finishing operations.
The machine frame features an all-steel welded structure with a fully stress-relieved worktable to prevent deformation. Machined in a single setup on a large five-axis machining center, the worktable delivers excellent geometric accuracy, ensuring long-term stability and high precision.
For large sheet metal parts, an adjustable front support table is available. Its telescopic design allows easy adjustment to match different workpiece sizes.
The entire machine is driven by a servo pump control system, reducing energy consumption and hydraulic oil usage. Servo control enables precise adjustment of the die gap, delivering efficient, stable, and energy-saving corner former.
Complete a full R-corner in a three-step, one-cycle process — massive throughput gains for batch production.
One-time forming produces paint-ready, clean corners so you can remove welding and grinding from your workflow.
Forming and scrap removal happen in one cycle with precision dies, guaranteeing consistent R-radius and minimal rework.
Integrated safety light curtain and pneumatic interlocks instantly halt the machine if the work envelope is breached, keeping staff safe.
Modular die mounting and servo/energy-efficient controls enable one-person tooling swaps and reduced energy and maintenance expenses.

The square die serves as the lower (internal) die. Its design is simple, enabling very fast and easy die changes. Manufactured with high hardness and uniform heat treatment, it resists deformation and wear, offers excellent toughness, and delivers long service life. One block die can be customized with four corner-angle configurations to form four different sheet-metal corner types.




The ERSM Corner Former is equipped with a complete safety system, featuring a pneumatically controlled safety door combined with a safety light curtain. Any interruption of the light curtain instantly stops the machine, ensuring effective operator protection during corner forming.
| Common Processing Materials | Sheet Thickness (mm) | Forming Edge Height (mm) | Forming R Angle |
|---|---|---|---|
| Cold-rolled Sheet / Galvanized Sheet / Electrolytic Sheet | 0.8 | 10~12 | R2~R60 |
| 1.0 | 10~15 | R2~R60 | |
| 1.2 | 10~20 | R2~R60 | |
| 1.4 | 10~25 | R2~R60 | |
| 1.5 | 10~25 | R2~R60 | |
| 1.8 | 10~30 | R2~R60 | |
| 2.0 | 10~30 | R2~R60 | |
| 2.3 | 10~35 | R2~R60 | |
| Aluminum Sheet | 0.8 | 10~12 | R2~R60 |
| 1.0 | 10~15 | R2~R60 | |
| 1.2 | 10~20 | R2~R60 | |
| 1.5 | 10~25 | R2~R60 | |
| 1.8 | 10~30 | R2~R60 | |
| 2.0 | 10~30 | R2~R60 | |
| Stainless Steel (Grade 304 and Above) | 0.8 | 10~12 | R2~R60 |
| 1.0 | 10~15 | R2~R60 | |
| 1.2 | 10~20 | R2~R60 | |
| 1.5 | 10~25 | R2~R60 | |
| 1.8 | 10~25 | R2~R60 |
Please note that hot-rolled steel is more difficult to form than carbon steel, and you will need to send a sample for testing.
Furthermore, the minimum size of our processed parts is 200 mm x 200 mm, and the maximum size is 6000 mm x 6000 mm.
Still Welding Cabinets?
Change your production process with Servo Corner Forming — look how ERSM forms clean, precise corners directly from flat sheet metal.
By combining pre-bending, corner forming, and scrap trimming into one streamlined process, ERSM replaces traditional R-corner-based methods and is already widely applied in electrical enclosures, cover panels, aluminum curtain walls, and the refrigeration industry.






1.Bending

2.Splicing

3.Welding

4.Polishing

5.Finish

1.Pre-Bending

2.Corner Forming

3. Finish

The total cost to produce 6,000 parts using the Corner Former is $16,350, while the cost with traditional processes is $68,250. Compared to traditional methods, the Corner Former can save up to $51,900, significantly reducing production costs.
A Corner Former is a machine designed to quickly form the corners of metal sheets, integrating flaring, forming, and cropping into a single operation. Unlike traditional welding and grinding processes, the Corner Former produces smooth, aesthetically pleasing corners without the need for welding, greatly improving production efficiency and reducing post-processing steps.
The Corner Former eliminates several time-consuming steps traditionally required for corner production. These include:
By removing these steps, the Corner Former streamlines the process, reduces labor costs, and delivers clean, finished corners in one setup.
The Corner Former is ideal for customers in industries that require clean, high-quality corner production with minimal post-processing. These include:
Applications of the Corner Former:
Forming corners for sheet metal boxes, trays, and panels.
Producing doors and enclosures with smooth, finished corners.
Replacing traditional processes like welding, grinding, and finishing for a more efficient and cost-effective solution.
The Corner Former is perfect for manufacturers seeking to enhance production efficiency, reduce labor costs, and improve product quality.
Are you looking for a time-saving and reliable machine for corner forming metal products? If you work in sheet metal processing, you know how tedious the process of achieving precise and consistent corner bends can be. Whether it’s a sheet metal housing, HVAC component, or cabinet casing, welding, grinding, and finishing are required. That’s where […]
Understanding the Corner Forming Process In the metalworking industry, corner forming machine technology is gradually replacing traditional welding and grinding methods. This innovative technique enhances production efficiency, ensures greater precision, and reduces production costs. In this article, we will compare corner forming with traditional processes, explain the forming procedure, highlight its advantages, and explore its […]
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