CNC Spring Coiling Machines by YF SPRING MACHINERY | Yinfeng Automation Technology
Modern supply chains live and die by repeatability. Manual or cam-driven coilers stall at \~150 pcs/min and rely on operator feel. Six-axis CNC coilers push 150 m/min feed rates while holding ±0.05 mm tolerances—turning coil quality from an art into data.
https://www.youtube.com/watch?v=coyJ0t7jnEk
How a CNC Coiler Works (Video/GIF Walk-through)
- Servo payoff releases wire under constant tension.
- Straightener rollers remove cast and helix.
- Cam-less servo slides (normally 3 – 6) position forming tools around a fixed arbor.
- Pitch axis modulates spring pitch in real time.
- Cut-off knife shears the coil precisely at index.
- Optical sensor checks OD / pitch and auto-corrects on the fly.
https://yfspringmachine.com/wp-content/uploads/2025/07/8208.mp4
Side-by-Side Specifications
| Model | Wire Ø Range | Max OD | Axes | Wire-Feed Servo Power | Foot-print (L × W × H) |
|---|---|---|---|---|---|
| YF-8680 | 3 – 8 mm | 100 mm | 6 | 15 kW | 2440 × 1260 × 1910 mm |
| YF-86120 | 6 – 12 mm | 140 mm | 6 | 30 kW | 3500 × 2200 × 2200 mm |
Spec Comparison Charts
CNC8680 SPRING COILING MACHINE
YF-8680 doubles throughput vs. the larger 86120 model.
Higher wire-feed power on the 86120 handles thicker material.
Seven Reasons to Upgrade
- One-click repeatability—servo feedback keeps coil length ±0.05 mm.
- No cams to grind—change jobs in under 3 min.
- Lower scrap—optical closed loop cuts waste up to 50 %.
- Complex geometries—variable-pitch, barrel and hour-glass shapes in one pass.
- Higher surface integrity—no mandrel drag or heat-affected zones.
- Less labor—one operator can run 3 – 4 machines.
- Smart analytics—Ethernet/OPC-UA exports SPC data to your MES.
Real-World Results
| Date / Location | Machine | Application | Outcome |
|---|---|---|---|
| Jun 2024 – New Zealand | YF-8680 | Automotive shock-absorber springs | +36.4 % output, workforce reduced by 6 operators thanks to lights-out night runs. |
| 2023 – Germany | YF-8680 × 2 | Suspension & valve springs | Lead-time down from 10 → 6 days, first-pass yield up to 98.7 %, ROI < 14 months. |
Capacity jump after installing a single YF-8680.
Application Industries & Typical Springs
| Industry | Typical Springs (alt text) |
|---|---|
| Automotive | Compression, clutch, suspension (automotive compression spring) |
| Medical | Micro torsion, catheter guide (medical precision torsion spring) |
| Electronics | Battery contacts, click domes (electronics battery spring) |
| Oil & Gas | High-temp helical seal energizers (oil-and-gas energizer spring) |
| Furniture | Zig-zag seat supports (furniture zig-zag spring) |
Buyer’s Checklist — 9 Parameters to Compare
- Wire diameter range & maximum OD
- Axis count & slide stroke
- Brand of servo & drive (Sanyo, TPK, etc.)
- Feed speed (m/min)
- Pitch accuracy tolerance
- Tooling change-over time
- SPC / QC integration ports
- Energy consumption (kWh/1 000 pcs)
- After-sales footprint—spare parts lead-time, local service
FAQs
Can one machine handle multiple spring types?
Yes. A six-axis cam-less coiler switches from compression to barrel or variable-pitch in < 3 min via stored programs.
What maintenance does it need?
Daily air-blast cleaning, weekly lubrication, and quarterly calibration of pitch sensor & feed encoders keep tolerance in spec.
Maintenance & Troubleshooting (Cheat-Sheet)
- Lock-out / tag-out power.
- Remove tooling and clean wire channel.
- Check ball-screw backlash (< 0.02 mm).
- Re-align optical sensor (±0.1 mm).
- Run self-diagnostic; log error codes.
Why Choose YF SPRING MACHINERY | Yinfeng Automation Technology
- 20 + years of spring-machinery focus
- 80 + patents (servo slide, auto-sensor, quick-lock tooling)
- ISO 9001 & CE certified
- 3 500 + units installed across 48 countries
- Real-time remote support, EU & US spare-parts hubs
- Verified customer rating 4.8 / 5
Ready to Coil Smarter?
Get an instant quote or download the full catalog (PDF)—and see exactly how quickly a YF SPRING MACHINERY CNC coiler pays for itself.
Cut lead-time, slash scrap, boost capacity—start today.