12mm Hollow Stainless Tube Bending Machine
Watch a benchtop rotary die bend 12 mm hollow stainless steel tube into tight U-parts - clean round bends with no tube collapse and a fast single-station cycle.
Key Specifications
- Materials
- 12 mm hollow stainless steel tube
Key Features
- Bends 12 mm hollow stainless tube around a single rotary die
- Clamp block holds the tube without flattening the wall
- Tight, repeatable U-radius bend in one station
- Finished parts show round, wrinkle-free bend sections
How Is 12 mm Hollow Stainless Tube Bent Without Collapsing?
Short answer: On a single-station rotary bend die with a proper clamp block. This video shows a benchtop bending machine wrapping 12 mm hollow stainless steel tube around the former in one stroke, producing tight U-bends whose sections stay round and wrinkle-free.
What the Video Demonstrates
| Stage | Equipment | Result |
|---|---|---|
| Feed | Manual insertion of straight tube | Correct bend start position |
| Clamp | Bolted clamp block and pressure die | Tube held without wall dents |
| Form | Rotary bend die, single station | Tight U-bend with round section |
| Check | Open end shown to camera | No collapse, consistent radius |
Key Applications
- Stainless railings, guards and small frames
- Handle and bracket production from hollow tube
- Furniture and sanitary hardware components
- Workshops replacing slow hand bending with a benchtop station
Rotary Die Bending vs. Press Bending for Hollow Tube
| Criterion | Press bending | Rotary die bending |
|---|---|---|
| Tube section after bend | Tends to flatten | Stays round |
| Bend radius control | Limited on thin wall | Consistent tight radius |
| Tooling cost | Low | Low - single die station |
| Suitability for 12 mm hollow tube | Marginal | Proven in this demo |
FAQ
What tube size does this machine bend in the video? The demonstrated part is 12 mm hollow stainless steel tube; matching dies are supplied for other diameters.
Does the thin wall wrinkle or collapse at the bend? No - the clamp block supports the tube as it wraps the die, so the finished sections stay round, as shown at the open ends.
Is the operation manual or automatic? Feeding and unloading are manual while the bending stroke is machine driven, which keeps the station simple and fast to learn.