What is CNC bending and what are its advantages?
CNC bending (bending on press brakes with computer numerical control) is forming a specified angle and shape of a metal sheet using a punch and die. The CNC system ensures accurate repetition of the bending angle on each part, eliminating human error. The result – high geometric accuracy and perfect repeatability in a series.
Which metals and thicknesses do your press brakes work with?
Our hydraulic press brakes DURMA AD-R 25100 and PBA 40/1300-4C work with cold-rolled and hot-rolled steel, stainless steel, aluminum, galvanized sheet in thicknesses from 0.5 to 10 mm (depending on the material). The press force allows bending sheets up to 2500 mm wide.
What bending accuracy is achieved on your presses?
Bending angle accuracy is ±0.5°, linear dimensions are held with an accuracy of ±0.2–0.5 mm depending on material and bend length. Our presses are equipped with an automatic angle control system, eliminating operator error and ensuring stable results in serial production.
Can you perform radius bending?
Yes – we perform radius bending of any size. We have a large set of standard radius punches and dies, and if necessary, we manufacture tooling for any non‑standard radius. Radius bends are used in the manufacture of enclosures, panels, and decorative elements – check parameters with our process engineers, we will find the optimal solution.
Can you bend a sheet that has already been perforated or laser‑cut?
Yes – in our facility, laser cutting and bending are performed sequentially in one plant. We first cut the contour and holes on the laser system, then bend the workpiece on the press according to the drawing. This avoids transport risks and mismatches between operations done by different contractors.
What is the minimum bend radius you can achieve?
The minimum inside bend radius is generally equal to the material thickness (for steel) or 1.5–2 times thickness (for aluminum and stainless steel). A radius that is too small may cause cracks. Our process engineers will calculate the optimal radius for your material and indicate permissible parameters during drawing approval.
Is special preparation of drawings required for CNC bending?
For bending, you need drawings showing bend lines, angles, and radii, as well as a flat pattern of the part. If you have a 3D model (STEP, SolidWorks), our process engineers will build the bending program themselves. If you only have a sketch or sample – we will help with documentation development.
How much does CNC bending of metal cost?
The cost is calculated based on material thickness and type, number and length of bends, and batch size. When ordered together with laser cutting, we provide a total price for the full processing cycle. Send your drawings to ik37@bk.ru or call 8 (800) 201-81-98 – we will calculate the cost within one business day.
