Cable failure inside drag chains is one of the top causes of unplanned downtime on CNC machines and robotic cells. Repeated flexing cracks standard insulation, signal interference throws off servo feedback, and replacement shuts down production for hours. The Fuji 4-core 3.5mm² VCT cable is built to solve exactly that.This is an imported Japanese-spec servo motor power cable designed for continuous high-flex motion. The VCT (Vinyl Chloride Thermoplastic) jacket and ultra-soft tinned copper conductors handle millions of bend cycles without signal loss or jacket cracking. It carries power and control signals in one compact 4-core 3.5mm² assembly — no separate power and encoder cable needed.Core Specifications
| Parameter | Detail |
|---|---|
| Brand / Origin | Fuji (Japan) |
| Core Count | 4 cores |
| Conductor Size | 3.5 mm² |
| Conductor Material | Tinned annealed copper |
| Jacket Material | VCT (PVC-based thermoplastic) |
| Outer Diameter | Approx. 11.5 mm |
| Rated Voltage | 300/500V |
| Temperature Range | -10°C to +80°C (flexing), -30°C to +105°C (fixed) |
| Min. Bend Radius | 6× OD (dynamic) |
| Bending Life | 10 million+ cycles |
| Standards | JIS C 3401 compliant |
Why This Cable Outlasts Standard Alternatives— 10M+ cycle flex rating. Tested on cable carriers at 1.5m/s travel speed. Standard PVC cables start cracking at 1–2M cycles — this one keeps going. Ideal for fast-axis servo drives on machining centers.— Oil and coolant resistant jacket. VCT compound resists cutting fluid, hydraulic oil, and light solvents. No swelling or hardening after prolonged exposure — critical for vertical CNCs and grinding machines where coolant splashes constantly.— Low capacitance, clean signal transmission. Tight core twisting and individual foil shielding per pair keep servo encoder feedback noise below 2mV. Prevents position jitter and following errors on high-precision axes.— Compact 4-core design replaces two cables. Power (2 cores) + encoder/brake (2 cores) in one jacket. Saves 30% space inside energy chain, reduces weight on moving gantries, and cuts installation time in half.Typical ApplicationsCNC machining centers (Fanuc, Siemens, Mitsubishi controls), 6-axis robot arms, pick-and-place machines, laser cutting heads, automated palletizers, injection molding robots, semiconductor wafer handlers — any application with servo motors moving inside cable carriers or drag chains.We stock this Fuji VCT cable in standard 10m and 20m reels, with custom cut lengths available. OEM cable assemblies with connectors (M12, M23, servo plugs) built to your machine model. MOQ as low as 1 reel for trial orders. 12-month quality warranty against flex fatigue. Send your cable spec or machine photo — we reply with pricing and lead time within 4 hours.