Coil Wire Bending Machine | Straighten and Form in One Pass
Coil wire is fed in, straightened and bent into double-crank steel pins in one pass on this 3D wire bending machine - a real construction-site part.
Key Specifications
- Materials
- Coiled low-carbon steel wire
Key Features
- Takes wire straight from the coil - no pre-straightening step
- Straightening block delivers true wire to the bending disc
- Rotary disc forms both crank arms in one automatic cycle
- Shear cuts each pin to length at the station
How Does One Machine Straighten and Bend Coil Wire into Crank Pins?
Short answer: With an integrated straightener and rotary bending disc. This on-site video shows a 3D wire bending machine pulling wire from the coil, straightening it through the block, and forming both crank arms of a construction-site pin in a single automatic cycle.
What the Video Demonstrates
| Stage | Equipment | Result |
|---|---|---|
| Feed | Coil wire into straightening block | True, kink-free wire at the disc |
| Grip | Clamp at the rotary disc | Wire held for accurate bends |
| Form | Rotary disc and forming pins | Both crank arms bent in sequence |
| Cut | Shear at the station | Finished pin dropped from the strip |
Key Applications
- Crank pins, tie rods and site fixtures from coil wire
- Construction hardware in stiff low-carbon steel rod
- Shops eliminating separate straightening benches
- High-count runs of identical bent pins
Coil-Fed Forming vs. Pre-Cut Rod Bending
| Criterion | Pre-cut rod | Coil-fed machine |
|---|---|---|
| Straightening | Separate step | Built into the line |
| Length accuracy | Set by saw | Set by servo feed |
| Labor per part | Handling twice | One automatic cycle |
| Changeover | New fixtures each size | Program and die swap |
FAQ
Do I still need a wire straightener in front of this machine? No - the inline straightening block trues the coil wire as it feeds, which is what the video shows running directly off the coil.
What kind of parts does it make here? A double-crank steel pin used for construction-site fixtures; other cranks, pins and brackets run with matched tooling and program.
Can the machine handle thick stiff wire? The demonstrated part uses stiff rod-grade wire; the clamp, disc and shear are sized to the diameter range you specify.