Chair Seat Frame Wire Bending Machine | 8mm Steel
Watch an 8mm steel wire bending machine form a chair seat frame skeleton in one automatic 3D cycle - large loop bends, symmetric legs, repeatable fit.
Key Specifications
- Materials
- 8mm steel wire rod
Key Features
- Forms full chair seat frame skeletons in one automatic cycle
- 3D rotary tooling sweeps large radius loops on 8mm wire
- Both side legs come out symmetric without re-fixturing
- CNC program stores frame geometry for repeat orders
How Is an 8mm Steel Chair Seat Frame Bent in One Cycle?
Short answer: On a 3D wire bending machine with rotary forming tooling. This video shows 8mm steel wire being fed and swept into an open chair seat frame skeleton - the large side loops, rear curve and front hooks are all formed in a single automatic cycle, and the end shot shows the completed symmetric frame.
What the Video Demonstrates
| Stage | Equipment | Result |
|---|---|---|
| Feed | Long-bed servo wire feed | Enough stock for a full frame perimeter |
| Sweep | Rotary 3D forming arms | Large-radius side loops without kinks |
| Index | CNC disc rotation | Bends transition cleanly between planes |
| Finish | Auto cut and release | Symmetric frame with square end hooks |
Key Applications
- Chair and stool seat support frames
- Sofa and furniture skeleton wire parts
- Automotive seat back frames of similar geometry
- Makers replacing welded two-piece frames with one bent part
One-Cycle 3D Forming vs. Sectional Frame Assembly
| Criterion | Sectional + weld | One-cycle 3D bending |
|---|---|---|
| Parts per frame | Several pieces | One continuous wire |
| Secondary ops | Fixturing, welding, grinding | None |
| Symmetry | Assembly dependent | CNC guaranteed |
| Changeover | New fixtures/weld program | Load a different program |
FAQ
What wire size does this seat frame machine handle? The video demonstrates 8mm steel wire; the same 3D platform is tooled for nearby rod and wire diameters.
Can the machine form large-perimeter frames like chair seats? Yes - the long feed stroke and rotary arms sweep the full frame outline, including big side loops, in one cycle.
Will repeat orders match the original frame exactly? Yes. The frame geometry lives in the CNC program, so re-runs reproduce the same shape and hook positions.