Continuously Flexible USB 3.0 Robot Cable
This continuously flexible USB 3.0 cable is engineered for robotic systems and automated equipment involving repeated bending and torsional movement. Screened data pairs, an overall tinned-copper braid and an oil-resistant PUR sheath support reliable high-speed data transmission under demanding mechanical and industrial conditions.
Key Highlights
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Designed for USB 3.0 data transmission and power supply in continuously moving machinery.
Typical applications include:
- Industrial robots and multi-axis robot arms
- Machine vision and industrial camera systems
- Automated inspection equipment
- Robotic measuring systems
- Machine tools
- Automated assembly lines
- Medical and laboratory equipment
- High-speed production machinery
- Moving USB connections exposed to oil and abrasion
The reference transmission length is up to 3 m. Longer connections require validation of the complete cable assembly, connectors, equipment interfaces and signal integrity.
| Component | Construction |
| Conductors | Silver-plated and tinned-copper stranded conductors according to element function |
| Core insulation | Special polymer compound |
| USB 3.0 pair colors | Yellow/blue and orange/violet |
| USB 2.0 pair colors | Green/white |
| Power conductor colors | Red/black |
| Data construction | Three twisted data pairs with screened data elements |
| Power construction | Two separate power conductors |
| Overall stranding | Data pairs and power conductors cabled together |
| Internal wrapping | Netting tape and nonwoven tape |
| Overall screen | Tinned-copper wire braid |
| Screen wrapping | Nonwoven tape |
| Outer sheath | Oil- and abrasion-resistant polyurethane compound |
| Standard sheath color | Black, similar to RAL 9005 |
| Property | Reference Value |
| USB standard | USB 3.0 |
| Reference transmission length | Up to 3 m |
| Maximum operating voltage | 350 V |
| North American reference voltage | 300 V, subject to applicable certification |
| Test voltage, core to core | 2000 V |
| Test voltage, core to screen | 2000 V |
| Minimum bending radius, fixed | 5 × cable diameter |
| Minimum bending radius, flexible | 10 × cable diameter |
| Minimum bending radius, continuously flexible | 15 × cable diameter |
| Reference torsional capability | Up to ±360° per meter |
| Temperature range, fixed | −50°C to +90°C |
| Temperature range, flexible | −40°C to +90°C |
| North American temperature reference | Up to +80°C |
| Flame performance | Flame-retardant and self-extinguishing according to IEC 60332-1-2 and EN 60332-1-2 |
| Oil resistance | Very good according to applicable TMPU requirements of EN 50363-10-2 |
| North American certification reference | UL AWM Style 20549, only where separately certified |
| Compliance options | RoHS-compliant and PFAS-free materials, subject to confirmation |
| Configuration | Approx. Outer Ø | Copper Weight | Approx. Cable Weight | Maximum Conductor Resistance at 20°C |
| 3 × (2 × 28 AWG) screened + 2 × 26 AWG | 6.4 mm | 28.1 kg/km | 50 kg/km | 223 Ω/km for 28 AWG; 140 Ω/km for 26 AWG |
| 3 × (2 × 26 AWG) screened + 2 × 24 AWG | 8.0 mm | 38.9 kg/km | 73 kg/km | 130 Ω/km for 26 AWG; 83.3 Ω/km for 24 AWG |
Outer diameter tolerance: Approximately ±10%
Other conductor sizes, sheath colors, transmission lengths and customized cable assemblies are available subject to electrical and mechanical validation.
THE FACTORY
BEHIND EVERY METER
Founded in 2007 in Foshan, Guangdong, Hulk Electric has grown from a regional producer into a globally recognised manufacturer of customised industrial cable solutions. Our 10,000㎡ facility runs on Toyota Production System lean principles, operated by 150+ skilled professionals producing over 300,000 metres every month.
Every cable you see on this page — including the HK-TRVV series — is engineered, extruded, tested, and shipped from that single facility. No trading company sits between you and the extrusion line.
Source Factory
Direct manufacturer — no middlemen, no markups. You deal with the engineers who run the line.
Deep Customization
Conductor, shielding, jacket compound, colour coding, certification — built to your exact spec.
7-Day Sampling
Rapid samples for new specifications. 15-day lead time on standard production orders.
Global Compliance
35+ certifications covering UL, CE, TÜV, IEC, RoHS and REACH for every major market.
BEFORE YOU ORDER
For stocked configurations listed in the ordering table, MOQ is 100 metres per specification. Custom configurations — non-standard core counts, jacket colours, or special compounds — carry a 500 metre MOQ. Samples of 5–10 metres are available free of charge for qualification testing.
Use shielded (P or PP suffix) whenever the cable runs alongside servo drives, VFDs, or inverters, or when carrying encoder, sensor, or analogue signals. Unshielded is suitable for pure power distribution and simple on/off control lines. If in doubt, our engineering team can review your cabinet layout and advise — this is included with any quotation.
Yes. Send us the existing part number or a sample and we will produce a cross-reference specification with matching electrical, mechanical, and dimensional characteristics. Most cross-references are turned around within 3 working days, with a physical sample following within 7 days.
Standard shipments include the CE Declaration of Conformity, RoHS and REACH statements, and the batch test report. UL Recognition (UL 2464 / UL 20549) is available on request for North American projects — specify this at the quotation stage as it affects the material specification.
Standard configurations ship in 15 working days from order confirmation. Custom-engineered specifications typically require 20–25 working days, depending on compound availability. Rapid sampling for new specifications is 7 days. We will confirm the exact date in writing with your order acknowledgement.
Engineering Support for Your Application
Tell Us How Your Cable Needs to Move
Send us a datasheet, drawing, existing cable model or a short description of your application. Our engineering team will help you identify a suitable cable construction.
- 01 Motion type, travel distance and minimum bend radius
- 02 Voltage, current, signal protocol and shielding needs
- 03 Operating environment, target service life and quantity
