Drag chain cables in CNC machines and robotic arms crack and fail early — not because of voltage overload, but because of repeated bending. Standard PVC motor cords fatigue after a few hundred thousand cycles. That means unplanned downtime, emergency replacements, and lost production hours. The real problem isn’t the cable rating — it’s the wrong cable construction for continuous motion.This German-made 4-core 0.5mm² power cable (type 810) is engineered specifically for high-cycle drag chain applications. Fine-strand copper conductors, oil-resistant PUR jacket, and a compact 6.8mm OD — built to move millions of times without insulation cracking or conductor breakage.Key Specifications
| Parameter | Value |
|---|---|
| Conductor | 4 × 0.5 mm², fine-strand copper (Class 5, IEC 60228) |
| Insulation | Special compound, abrasion & oil resistant |
| Outer Jacket | PUR (polyurethane), black, RAL 9005 |
| Rated Voltage | 300/500 V |
| Cable Type | 810 (equivalent to ÖLFLEX® CHAIN 810) |
| Min. Bend Radius (fixed) | 5 × overall diameter |
| Min. Bend Radius (moving) | 7.5 × overall diameter |
| Operating Temperature | -10°C to +70°C (fixed); -5°C to +70°C (moving) |
| Approx. Outer Diameter | 6.8 mm |
| Min. Bend Cycles | 5,000,000+ (tested per DIN VDE 0295) |
| Compliance | VDE approved, CE marked, RoHS compliant |
Why This Cable Lasts Where Others Fail
- Tested to 5 million bend cycles. The type 810 construction uses individually shielded, ultra-fine copper strands that absorb flex stress without work-hardening. In 6-axis robot arms running 24/7, this cable outlasts standard H05VV-F cords by 10×. No micro-cracks. No sudden open circuits mid-cycle.
- PUR jacket handles real shop-floor conditions. Cutting fluid, hydraulic oil, metal swarf — standard PVC swells and cracks within weeks in CNC machining centers. This polyurethane outer sheath resists oil, coolant, and abrasion. Tested in metalworking environments where cables are dragged over aluminum chip conveyors daily.
- Compact OD fits tight energy chains. At 6.8mm, it installs easily in 10×10mm and larger cable carriers. Lower fill ratio means less drag force on the chain, less wear on plastic links, and no jamming in high-speed pick-and-place machines running 3m/s+ traverse.
- Stable under continuous motion at speed. Electrical resistance stays flat even after millions of cycles. No signal degradation when routed next to encoder or servo feedback cables. Critical for servo motor power feeds in injection molding and laser cutting systems where voltage drop causes axis faults.
Applications & Industries
- CNC machining centers, lathes, milling machines
- Industrial robots, collaborative robots (cobots)
- Automated guided vehicles (AGVs)
- Packaging, palletizing, and sorting lines
- Injection molding and die-casting machines
- Laser cutting, welding, and plasma systems
- Conveyor systems with moving cable carriers
Factory Direct — No Middleman, Full SupportThis cable is manufactured in-house using German-standard tooling and raw materials. We offer standard lengths from 1 meter, custom cut-to-length orders, pre-terminated connectors (M8, M12, flying leads), and multi-core configurations on request. MOQ starts at 100m for OEM projects. Every batch is flex-life and insulation-resistance tested before shipping. 12-month quality warranty included.Need a sample or a project quote? Send us your cable length, connector type, and application — we reply within 24 hours.