2-Core 0.75mm² PUR Drag Chain Motor Cable

If cable failure shuts down a pick-and-place cell or a linear motion axis, the cost is rarely the cable itself. It is the unplanned downtime, the scrapped work-in-progress, and the engineering hours burned on fault tracing. A drag chain cable that fatigues internally after three million cycles turns a commodity into a significant liability.

This 2-core 0.75mm² PUR drag chain motor cable is stocked for motion-intensive power and signal circuits where standard PVC jackets crack, stiffen, or wear through. It combines fine-stranded copper conductors with a halogen-free polyurethane outer sheath. The result is a bend-radius rating and jacket toughness that reduces replacement intervals and keeps cycle times predictable across the asset’s mechanical life.

Conductor Design That Lowers Internal Fatigue

Class 6 super-fine stranded bare copper.
Multi-wire stranding per IEC 60228 Class 6 distributes bending stress across more individual filaments than Class 5 or solid-core designs. Each strand shifts microscopically within the bundle during flexing. This delays the work hardening and strand breakage that cascade into hot spots, resistance spikes, and intermittent open circuits. For a high-duty-cycle gantry or delta robot, that directly reduces unscheduled line stops.

PUR Jacket Engineered Against Abrasion and Oil Ingress

Halogen-free, flame-retardant polyurethane outer sheath.
PUR’s tear propagation resistance is measurably higher than PVC or TPE alternatives at equivalent wall thicknesses. In abrasive environments—metal chip accumulation inside a cable carrier, repeated contact with guide rails—the jacket maintains insulation integrity long after PVC would be holed. The material’s mineral oil and coolant resistance also prevents jacket swelling or embrittlement in machine tool sumps and cutting-fluid spray zones. Less jacket degradation. Fewer replacements. Lower MRO spend.

Tight Minimum Bend Radius for Compact Cable Tracks

Bend radius specified at 7.5 × outer diameter when flexing.
A cable that demands a 10× or 12× bend radius forces a larger cable track, wider machine guarding, or a complete redesign of the carrier routing. This 7.5× rating fits into tighter drag chain cavities without violating the cable’s mechanical design envelope. The benefit is not theoretical. It is millimeters of clearance reclaimed in a crowded gantry arm, or one size smaller chain cross-section across a 15-metre travel. Both scenarios cut bill-of-materials cost and mechanical complexity.

Temperature Rating That Matches Real-World Cycle Profiles

Flexing temperature range: -30°C to +80°C. Fixed installation: -40°C to +90°C.
Cold-start conditions in unheated logistics warehouses or freezer automation cells punish standard cables. A PVC jacket stiffens, micro-cracks propagate, and flex life plummets within hours. This PUR formulation stays ductile at -30°C during continuous flexing. The cable reaches its rated cycle life without de-rating. For a cold-chain picker module, that eliminates heater blankets or scheduled warm-up dwell times.

2-Core 0.75mm² Configuration Matches Common Low-Power Motor Circuits

0.75mm² cross-section, no protective conductor.
This is the go-to spec for fractional-horsepower servo motor power, compact stepper drives, brake control lines, and solenoid valve feeders inside moving cable chains. The 0.75mm² conductor carries ampacity appropriate for these loads without oversizing the cable diameter and adding unnecessary mass to the carrier. Lighter cable mass translates directly to reduced drag force, smaller drive motors, and longer carrier service life.

Technical Specifications

Industry Applications

• Linear motion and Cartesian gantry systems. Feeds stepper and servo motor power circuits inside E-Chain or cable carrier assemblies with stroke lengths exceeding 5 metres. The tight bend radius and PUR jacket reduce drag-chain weight and eliminate PVC-related cold-stiffening failure modes.
• Packaging and pick-and-place automation. Survives the extreme acceleration and deceleration profiles of delta robots and high-speed picker heads where millions of flex cycles per year are routine. Strand-level conductor design prevents early fatigue failure.
• Machine tool and CNC internal wiring. Routes power to coolant pumps, tool changers, or axis drives submerged in cutting-fluid mist environments. PUR oil resistance prevents jacket swelling, embrittlement, and insulation compromise over multi-year service intervals.
• Cold storage and freezer logistics. Operates reliably in automated storage and retrieval systems (ASRS) at sustained sub-zero ambient temperatures, where PVC cables stiffen beyond usable flex life within weeks of commissioning.
• Sensor and valve manifolds on moving carriages. Supplies low-current power and control signal continuity for solenoid banks or distributed I/O blocks mounted on reciprocating shuttles. Two cores meet the exact wiring topology without unused conductors adding mass.

International Compliance and QA Testing

• ✅ IEC 60228 Class 6 — Conductor stranding classification and compliance
• ✅ IEC 60332-1-2 — Flame retardance for single vertical cables
• ✅ IEC 60754 — Halogen gas emission testing (halogen-free confirmation)
• ✅ CE Marking — Conformity with applicable EU directives (Low Voltage, RoHS)
• ✅ RoHS 3 (2011/65/EU amended) — Hazardous substance restrictions met
• ✅ ISO 9001 — Manufacturing facility quality management system certified
• ✅ Custom test reports — Flex cycle endurance data and dimensional batch certificates provided upon request for project qualification

FAQ

How do we verify that this cable will reach its rated flex cycle count in our specific drag chain layout?
Provide the chain’s bend radius, travel speed, acceleration profile, and ambient conditions to your supplier’s applications engineering team. A validated test protocol—typically a continuous flex test in a representative carrier setup—can be conducted, and the resulting S-N curve data or cycle-to-failure report is supplied for your project’s qualification package. Do not rely on catalogue flex ratings alone when cycle count is a critical-to-quality metric.

We are replacing an existing PVC cable with identical core count and gauge. Is this a direct dimensional swap?
In most cases, yes—the nominal outer diameter of this PUR construction is similar to or slightly smaller than equivalent PVC drag chain cables. However, verify the exact outer diameter against your existing carrier’s inner partition width, cable clamp dimensions, and bend radius restrictions. The batch-specific dimensions are documented on the supplier’s inspection certificate.

What colour options and marking types are available for multi-axis machine identification?
The standard sheath colour is matte black with metre-marking for length verification. Alternate sheath colours, core colour combinations, and customer-specific legend printing (company name, part number, sequential metre marks) are available under minimum order quantity conditions. Discuss your marking specification during the quoting stage to avoid post-order lead-time delays.

Request Cable Specifications and Volume Pricing

Submit your project’s linear metre requirement, target delivery window, and bend radius or cable carrier model. We return a detailed specification sheet, batch-specific dimensional data, and volume pricing within one working day. Testing certificates for your qualification package are included at no additional charge.