Industrial Robot Cable
Highly Flexible PUR Spiral Cable- Shanghai Deru Cable Direct Sales
Specification
| Basic Structure | Conductor+Insulation+Jacket+Hose |
| Conductor | Plain Copper/ Tinned Copper |
| Insulation | PE |
| Braid | Kevlar/ Plain Copper/ Tinned Copper |
| Jacket | PUR/TPE/PCP |
INTRODUCTION
Our highly flexible PUR spiral cable is a retractable coiled power & control wire engineered with premium polyurethane outer sheath. Featuring ultra-high bending resilience, superior oil/abrasion resistance and stable elastic recovery, this PU spring cable withstands millions of repeated stretch-retract cycles for moving industrial equipment. Custom core counts, expansion ratios and end lengths are available for automation robots, power tools, truck trailers and mobile machinery. Fully compliant with CE, RoHS and VDE industrial standards.
Key Construction & Technical Specifications
Cable Structure
Conductor: Extra-fine bare copper stranded wire (VDE 0295 Class 6) for maximum flexibility
Core Insulation: PVC / TPE optional
Intermediate wrapping: Textile fiber layer to reduce internal friction
Outer Sheath: High-performance PUR (Polyurethane)
Core identification: Color coded cores + green/yellow earth core for ≥3-core models
Standard Technical Data
Nominal Voltage: 300/500V (H05BQ-F), 450/750V (H07BQ-F)
Test Voltage: 2000V
Temperature Range: Static -40℃ ~ +80℃; Dynamic bending -30℃ ~ +80℃
Max Expansion Ratio: 1:4 (custom 1:2~1:5 supported)
Coil pitch, straight end length (200mm standard, customizable)
Certification: CE, RoHS, ISO9001, Reach compliant
PUR vs PVC Spiral Cable Comparison
| Item | Highly Flexible PUR Spiral Cable | PVC Spiral Cable |
|---|---|---|
| Abrasion Resistance | Excellent | Ordinary |
| Oil/Chemical Resistance | Strong | Poor |
| Low Temperature Performance | -30℃ dynamic workable | Easy crack below -10℃ |
| Stretch Cycle Lifespan | 3–5x longer | Short service life |
| Cost | Medium | Low |
| Heavy Industrial Suitability | First choice | Only light indoor static use |
FAQ
Q: What is a highly flexible PUR spiral cable used for?
A: It is retractable moving connection wire for equipment needing frequent stretch, including robots, power tools, truck trailers and automation lines, relying on PUR sheath for harsh industrial resistance.
Q: What expansion ratio can your PUR coiled cable support?
A: Standard 1:4; we customize 1:2 to 1:5 expansion ratios per customer drawings.
Q: Can you assemble connectors on spiral cable ends?
A: Yes, we support custom molded plugs, straight/tangential straight ends, terminal crimping service.
Q: Are your PUR spiral cables certified for EU export?
A: All models pass CE, RoHS, Reach, ISO9001 quality certification, meet VDE European cable standards.
Q: How long is the service life of PUR spiral cable?
A: Under normal dynamic working conditions, service life reaches 3–8 years depending on stretch frequency and environment.
Our Custom & Factory Service
Custom core count: 2/3/4/5/6/7/8/10+ cores, custom wire cross-section
Custom coil size, spiral pitch, straight end length
Connector assembly, wire stripping, marking printing available
Free sample testing support, factory direct wholesale price
12-month product warranty, full technical drawing support
About Us
Shanghai Deru Cable Classic Case
ADVANTAGES
Ultra High Flexibility (Feature)
Benefit: No conductor breakage after millions of reciprocating stretches; ideal for high-frequency moving robot arms and automated production lines
PUR Polyurethane Sheath (Feature)
Benefit: Excellent oil, chemical, abrasion & hydrolysis resistance; far longer service life than PVC spiral cables in oily factory workshops
Stable Elastic Recovery (Feature)
Benefit: Always retracts to original coil shape, no sagging or loose deformation during long-term shift operation
Weather & Low Temp Tolerance (Feature)
Benefit: Works reliably in outdoor, cold storage and northern low-temperature industrial environments without sheath cracking
Full Customization (Feature)
Benefit: Adjust core number, cross-section, expansion length, connector assembly to perfectly fit your machine design
CUSTOMIZATION CAPABILITY
We are your reliable partner in special cable customization
Considering different working conditions and clients' request, Derul's cable product can be highly customized.
To best meet the demands in our clients' practical application, we can offer highly customized solution and quality cable product, to ensure the cable is suitable for our clients.
We welcome new clients to send us specific requirement. Our teams will evaluate it and offer unique technical datasheet and technical drawings to you.
Our competitive price which most clients could afford will be another key to our successful and efficient cooperation.
As the original manufacturer, we provide quick response to any of our clients' inquiry. We have close interconnection between the workshop, engineer and sales person.
FAQ
Q: Is Derul Cable the original manufacturer?
A: Derul Cable is a special cable manufacturer. Our factory is based in Shanghai.
Q: Is the price negotiable?
A: Yes, the price is negotiable. Our price is also flexible due to several factors including purchase quantity.
Q: What is the regular MOQ for your cable?
A: Any quantity is okay to purchase for product at stock. For product with no stock, its MOQ is usually 100-200 meters per type.
Q: How can I get sample?
A: Usually you only need to pay the express freight, and after your confirmation of the product dimension and structure, we can arrange the sample and send it directly to you.
Q: Is OEM or ODM service available?
A: OEM and ODM services are both available. You can provide us with your requirement for the product and we will evaluate it to push forward.
Q: What is the regular production time?
A: For regular quantity, it usually costs about 15-25 days to produce.
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Quick Links
WhatsApp: +86 13641831061
E-mail: sales@derulkable.com
Add.:No.236 Fenggao Road Fengxian District Shanghai China
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