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Authorized Suzhou distributor · Xinya Electronic Co., Ltd. 📞 +86 15862457677 📫 [email protected]
Xinya AWM Wire Authorized Suzhou distributor · Xinya Electronic Co., Ltd.

Drag Chain Harness | Robot Cable Manufacturer

Continuous-flex drag chain and robot harnesses on UL shielded multi-conductor cable: terminated shields, defined bend radii and millions of flex cycles.

Robotics drag-chain harness with braided sleeving and circular connectors
Made to drawing. No prices are published and there is no cart. Send the drawing, a sample or a list of from-to points and we will quote the wire, connector, crimp and test method in writing.

Robotics & Drag-Chain Harness: what we build

A cable that survives a drag chain is a system, not a wire. The conductor has to be fine-stranded enough to bend without work-hardening, the jacket has to resist the abrasion of the chain, and the shield has to be terminated so that it does not fatigue at the point where it stops being a cable and becomes a connection.

Most field failures in continuous-flex applications happen in the last 100 mm — at the connector, the strain relief or the point where the shield was soldered. We build the termination so the transition from moving to fixed is deliberate: a defined strain-relief length, a shield termination that does not carry bending load, and a backshell that holds the cable’s bend radius rather than letting it kink.

The assemblies are built on the UL shielded multi-conductor lines in this catalogue, from UL20276 at 30 V for signal-only runs up to UL2586 at 600 V, 105 °C where the axis carries power as well.

How we build it

  • Fine-stranded conductors selected for the cycle count the axis actually runs
  • Shield terminated to a drain lead or backshell, never left carrying bending load
  • Strain-relief lengths set from the chain geometry, not from habit
  • Encoder, bus and power conductors in one assembly where the routing allows
  • Moulded or booted backshells that hold the minimum bend radius
  • Continuity and shield integrity verified on every assembly before packing

Wire we build this harness on

Every conductor is Xinya wire from this site's own catalogue, so the style inside the harness can be traced to a published data sheet. These are the lines most often specified for this application:

If your drawing names a style that is not listed here, ask — the catalogue published on this site is a subset of what the factory runs, and we can quote against a style number as easily as against a description.

How to get a quotation

Send the drawing, the sample, a photograph with a scale in shot, or a table of from-to points. Our reply names the wire style, the connector series, the crimp specification, the sleeving and the test method, so your engineers can approve the part rather than interpret a description. Nothing on this site carries a price: every harness is quoted against the specification you provide.

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Questions buyers ask about robotics & drag-chain harness

Which UL cable is right for a drag chain?

For signal-only runs on a moving axis, UL20276 at 30 V is compact and flexible. For an axis that also carries power, UL2586 at 600 V and 105 °C or UL2587 at 600 V and 90 °C give the voltage and temperature headroom. All of them are listed in the UL flexible industrial control series in this catalogue.

Why do drag chain assemblies fail at the connector?

Because that is where the cable stops moving and the load changes. If the shield is soldered to the shell and the solder joint is inside the bend zone, the joint fatigues. We terminate the shield onto a drain or a backshell crimp positioned outside the moving length.

Do you build encoder feedback harnesses?

Yes, and they are the most common request in this category: a shielded pair or two for A/B channels, a shield drain, and power cores in the same jacket, terminated into the encoder connector series the drive uses.

Can you pre-form the cable to the chain radius?

We can set a strain-relief length and supply the assembly coiled to the radius your chain runs. Pre-forming in a fixture during assembly helps the cable take a set rather than fighting the chain from day one.

Do you test for flex life?

We verify continuity and shield integrity, and we build to the conductor class and geometry the cycle count calls for. Long-duration flex testing is a design validation activity rather than a per-lot test, and we will say so rather than imply a number we cannot support.

Other Industrial & Automation harnesses

Request a quotation for this harness

Tell us the style, AWG, colour and quantity — or attach nothing and just describe the requirement. We reply to every enquiry.

We use your details only to answer this enquiry. No prices are published on this site.

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Questions & answers

Frequently asked questions

Certifications, lead time, payment, shipping and MOQ — the points buyers ask about most often. If something is still unclear, send us your requirement and we will answer directly. See the full FAQ →

01 Are you a manufacturer or a trading company?

We are a wire harness manufacturer — cutting, stripping, crimping, sealing and testing are all carried out in-house at our Suzhou plant. We are also an authorised distributor of Xinya brand electronic wire, so you can source both the wire and the finished harness from one supplier.

02 What certifications do your electronic wires have?

Our electronic wires carry UL, VDE, PSE and CE approvals, together with RoHS and REACH compliance for the European market; TUV approvals are available for PV and renewable-energy wire. Certificates and test reports are issued by the manufacturer and can be supplied with your quotation on request.

03 How long is the lead time?

For electronic wire, popular styles such as UL1007, UL1015, UL1061 and UL1569 are normally available quickly; other styles, non-standard colours and cut lengths usually take around 7 days. Wire harnesses are made to order, so the schedule depends on your drawing, connector availability and quantity — we confirm it in the quotation.

04 What are your payment terms?

We commonly accept T/T (telegraphic transfer), PayPal and Western Union. Typically a 30% deposit is required before production, with the balance paid before shipment.

05 How do you ship the goods?

Samples and small orders are shipped by international express (DHL, FedEx, UPS, TNT) or by air freight. Larger orders normally go by sea to reduce freight cost. We can quote EXW, FOB, CIF or door-to-door terms and will recommend the option that best fits your budget and delivery date.

06 Do you have a minimum order quantity (MOQ)?

We keep a low MOQ to support your business. Generally the MOQ is 1 piece for standard models, although it may vary slightly for customised products. Small trial orders are welcome.

07 Can you build harnesses to our own drawing or sample?

Yes. We build to print and build to sample — send us a 2D drawing, a BOM, connector part numbers or even a photo of the part in use, and we will assemble, test and quote accordingly.

08 Can I get a sample before placing a bulk order?

Yes. We are happy to build a prototype first so that you can approve the fit, crimp and finish before committing to volume. Send the drawing and the target quantity and we will quote sample cost and lead time.

09 What information do you need to give a quotation?

For wire: the style or UL number, AWG, voltage and temperature rating, insulation, conductor, colour and length. For harnesses: the drawing or BOM, connector brand and part number, terminal and housing type, wire specification, cut length and tolerance, sleeving or tubing, label and packaging requirements, quantity and destination. If anything is unclear we will ask — or propose a construction for you.

10 Do you support OEM / ODM and private labelling?

Yes. We work with customer-specified connectors and brands as well as JST, Molex and HongXing, and can add printed markers, custom labels, printed bags and your own carton artwork for OEM and ODM projects.

11 How do you control quality?

Every order goes through incoming wire inspection, cutting and stripping checks, crimp height and terminal pull-force testing, 100% continuity and open-and-short testing, and a final dimensional and visual inspection. Inspection records can be supplied with the shipment when your project requires them.

12 Can you help with wire and connector selection?

Yes — our engineers help match wire gauge, insulation and temperature rating to your current, voltage and working environment, and select a terminal and housing combination that crimps reliably. Describe the application or send a sample and we will propose a construction.

13 Can you supply cut lengths and custom packaging?

Yes. Wire can be supplied in cut lengths, coils or spools, with PE bags, cartons, pallets and printed labels arranged to suit your warehouse or production line.

14 Do you ship worldwide, and can I visit the factory?

We ship worldwide, with regular shipments to Europe, North America, South-East Asia, the Middle East and Australia. You are welcome to visit our plant in Suzhou, and you can see our production lines in the factory videos on this site.

15 What happens if there is a quality problem after delivery?

Contact us with the order or batch number and photos of the issue. We will check it against our production and inspection records and, where the fault is confirmed on our side, arrange replacement or credit.

Send us your requirement See our production lines

Need wire to a specification?

Send the style, AWG range, colour and length — or your BOM and drawing. We will come back with construction, availability and lead time. This catalogue publishes no prices; every enquiry is quoted directly.

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