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7mm Cold-Drawn Steel Rod Rectangular Ring Bending Machine
CNC 3D bending of 7mm cold-drawn steel rods into rectangular open rings and frames. Heavy rod forming with drawing verification for hardware batches.
Key Specifications
- Materials
- Cold-drawn steel rod, 7 mm diameter
Key Features
- Forms closed-look rectangular rings from solid 7mm bar
- Four corners indexed in one CNC setup
- Leg lengths matched so rings stack flat
- Cold-drawn surface stays clean in the dies
Which Machine Bends Square Rectangular Rings from 7mm Steel Bar?
Short answer: A CNC 3D rod bender. This video shows 7mm cold-drawn steel rods formed into rectangular open rings - four corners indexed in one setup, finished rings checked against the drawing.
What the Video Demonstrates
| Step | Operation | Result |
|---|---|---|
| 1 | Rod clamped at head | Square start |
| 2 | Corners formed in order | Consistent legs |
| 3 | Final bend + cut-off | Open ring complete |
| 4 | Overlay on print | Geometry verified |
Key Applications
- Reinforcement rings for cases and frames
- Handle and guard loops
- Mounting hoops for equipment
Why Cold-Drawn for Rings
| Property | Hot-rolled | Cold-drawn |
|---|---|---|
| Size accuracy | Loose | Tight |
| Corner sharpness | Rounded | Crisper |
| Stack flatness | Variable | Consistent |
FAQ
Can the rings be fully closed (welded)? Yes - butting the ends for welding is a common follow-up step.
What ring sizes are possible? Dimensions follow table and tooling; the demonstrated part is a mid-size rectangular ring.
Interested in this machine?