Cables in drag chain systems fail too often — cracking, signal interference, downtime. Replacing them mid-production kills efficiency and adds hidden cost. The 855CP series 3G2.5 cable is built to stop that cycle.This is a 3-core, 2.5mm² double-sheathed shielded power cable designed for continuous flexing in cable chains, robot arms, and automated production lines. The dual-layer sheath structure — inner insulation plus outer jacket — handles mechanical stress that single-sheath cables can’t. Shielding keeps signal clean in high-EMF environments like welding stations and VFD-driven machines.Core Specifications
| Parameter | Detail |
|---|---|
| Conductor | 3 × 2.5mm² stranded bare copper |
| Sheath | Double-sheathed (inner + outer PVC) |
| Shielding | Tinned copper braid, ≥85% coverage |
| Outer Jacket | PVC, oil-resistant, UV-stabilized |
| Rated Voltage | 300/500V |
| Operating Temp | -5°C to +70°C (flexing), -40°C to +80°C (fixed) |
| Min. Bending Radius | 7.5 × overall diameter |
| Flex Cycles | ≥10 million (tested) |
| Standards | VDE 0295, RoHS compliant |
| Series | 855CP |
Why It Holds Up in Tough Conditions
- Double sheath absorbs abrasion. In reciprocating drag chains, cables rub against each other and the chain walls every cycle. The extra sheath layer acts as a sacrificial barrier — outer jacket wears first, inner insulation stays intact. No premature exposure, no short circuits.
- Tinned copper braid blocks EMI. CNC spindles, servo drives, and inverters throw off heavy electromagnetic noise. The ≥85% braided shield grounds interference before it corrupts control signals. Stable power delivery, fewer false triggers on sensors and PLCs.
- Oil and chemical resistance built in. Workshops use cutting fluids, hydraulic oil, and coolant splash daily. Standard PVC jackets swell and crack in weeks. This cable uses a modified PVC compound that resists oil, coolant, and mild solvents — flexibility stays consistent even after prolonged exposure.
- 10 million flex cycles verified. Most drag chain cables are rated at 3–5 million cycles. The 855CP series passes 10 million at rated bending radius. For a machine running 2 shifts, that translates to years of service before the first cable replacement.
Applicable Industries & Scenarios
- CNC machining centers and lathes
- Injection molding and stamping presses
- Industrial robots and palletizers
- Automated assembly and packaging lines
- Port cranes and conveyor systems
- Typical use: power supply and control signal routing inside energy chains, drag chains, and cable carriers on moving machine axes
Factory Direct — No Middleman MarkupWe manufacture the 855CP series in-house. MOQ starts from one reel. Need custom length, connector on one end, or a specific jacket color — we do it. Every order ships with a test report. 24-month warranty against material and workmanship defects. Request a free sample or send your spec sheet — we reply within 48 hours.