PUR Single-Core Drag Chain Cable

Engineered for relentless dynamic flexing inside cable carriers, our PUR single-core cable delivers reliable power transmission where conventional cables fail. The single-core construction eliminates internal stranding stress, resulting in a genuinely high-flex solution with a bending life that routinely exceeds 10 million cycles.

The polyurethane (PUR) outer sheath offers exceptional resistance to abrasion, mineral oils, coolants, weak acids and alkalis, hydrolysis, and microbial attack. Combined with excellent UV and weathering performance, this cable operates confidently in extreme environments from -40°C to +105°C (both fixed and flexing installations).

Because a single conductor dissipates heat more effectively than a bundled multicore design, the cable achieves higher ampacity for the same cross-sectional area—a critical advantage in compact cable carrier layouts.

At a glance:

Single-core, ultra-flexible design for energy chains and cable tracks
PUR sheath: outstanding mechanical toughness and chemical resistance
10 million+ bending cycle endurance tested
Wide temperature range: -40°C to +105°C
Superior current-carrying capacity per mm² compared to multicore cables
UV, oil, and hydrolysis resistant for indoor and outdoor use

Applications

Industrial Automation: CNC machine tools, machining centers, automated production lines—anywhere power and signal integrity must be maintained during constant motion.

Robotics & Servo Systems: High-frequency reciprocating power supply for robot arms, servo motors, and precision positioning equipment in electronics manufacturing and packaging machinery.

Material Handling: Mobile power feed for overhead cranes, conveyor systems, automated storage and retrieval systems (AS/RS), and shuttle cars.

Specialty Machinery: Automotive manufacturing, food & beverage processing, wood and stone cutting equipment—where cables face constant flexing, oil splash, and mechanical wear.

Technical Specifications

Specification	Detail
Conductor	Bare copper, ultra-fine stranded according to VDE 0295 Class 6 / IEC 60228 Class 6
Insulation	Special PVC compound
Core identification	Red (other colors available on request)
Outer sheath	PUR (polyurethane)
Sheath color	Yellow, black, orange (custom colors available)
Rated voltage	≥0.5 mm²: 300/500 V <0.5 mm²: 300/300 V
Test voltage	2500 V
Temperature range	Fixed installation: -40°C to +105°C Flexing installation: -40°C to +105°C
Minimum bending radius	Fixed installation: 5 × cable outer diameter Flexing installation: 7.5 × cable outer diameter
Flame retardance	In accordance with IEC 60332-1-2
Oil resistance	Excellent – PUR sheath resists mineral oils, synthetic oils, and water-based coolants

Conductor cross-sections, sheath colors, and voltage ratings can be tailored to your specific requirements. Contact our engineering team for custom designs.

Why a Single-Core Drag Chain Cable?

Lower bending radius, higher flexibility. Without the internal friction and stress points introduced by multiple cores twisted together, a single-core cable inherently bends more easily and withstands tighter routing inside cable carriers.

Thermal advantage. In compact carriers, heat dissipation matters. A single-core cable with an optimized insulation layer runs cooler than a comparable multicore cable, allowing higher current loads or the use of a smaller cross-section, which saves space and cost.

Simplified routing. Single conductors are easier to separate, replace, and route in three-dimensional movements—especially valuable when upgrading existing machines or designing modular systems.

FAQ

1. How many bending cycles can this PUR drag chain cable achieve?
Under typical installation conditions in a properly sized cable carrier, the cable routinely exceeds 10 million bending cycles. Actual life depends on bending radius, travel speed, acceleration, and environmental factors. Request a life calculation based on your carrier layout.

2. What is the difference between PUR and PVC outer sheaths for drag chains?
PUR offers substantially higher abrasion resistance, better oil and chemical tolerance, and longer flex life in cable tracks. PVC jackets are more economical but wear faster in dynamic applications and have lower resistance to harsh fluids. PUR is the preferred choice when long service life and harsh operating conditions are required.

3. Can I use this cable outdoors?
Yes. The PUR sheath provides excellent resistance to UV radiation, ozone, and moisture, making it suitable for outdoor installations as well as indoor washdown environments. The -40°C low-temperature flexibility is particularly useful for cold storage and outdoor material handling equipment.

4. What cross-sections and voltages are available?
We manufacture this cable in a full range of cross-sections. The rated voltage is 300/500 V for 0.5 mm² and above, and 300/300 V for smaller conductors. If your application requires 0.6/1 kV or higher ratings, please discuss a custom design with our technical team.

5. Can I order a custom jacket color or have the cable labeled with my company’s part number?
Absolutely. We routinely produce custom jacket colors and print customer-specific identification at no or low additional cost, subject to minimum order quantities. Contact us with your requirements.

6. What certifications does this cable carry?
Our standard production meets the essential requirements of the Low Voltage Directive and applicable IEC standards. Upon request, we can supply CE-marked product, and provide specific test reports or certifications relevant to your market (for example, UL/CSA recognition, EAC, or other regional marks). State your certification needs with the inquiry for a feasibility confirmation.

Request pricing, a sample, or a detailed data sheet.
Tell us your operating environment, bending radius, travel length, and required cross-section. Our application engineers will recommend the optimal single-core PUR drag chain cable for your machinery or project.