ROBOTICSCABLE ASSEMBLY

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Frequently Asked Questions

Common questions about custom robotics wire harnesses and cable assemblies — from high-flex drag-chain cable and EMI shielding to MOQ, lead time, testing and how to start a quote.

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About us & how we work

Who we are and what scope of work we take on for robotics programs.

Do you sell wire or connectors on their own?

No. We are a robotics wire harness and cable assembly manufacturer and integrator — not a component distributor. We source and integrate the right wire, connectors and terminals into a finished assembly built to your specification. Our value is in the assembly, integration and testing, not in selling loose components. If you only need bulk wire or a reel of connectors, a distributor is the better fit; if you need a motion-rated harness that is cut, crimped, shielded, sleeved and tested to a drawing, that is exactly what we do.

What products do you build?

Custom robotics wire harnesses and cable assemblies, including high-flex drag-chain (continuous-flex) cables, robot-arm internal harnesses, end-of-arm-tooling (EOAT) cables, servo and motor cables, sensor and signal cables, EMI-shielded assemblies, waterproof IP67/IP68 assemblies, high-voltage assemblies, overmolded cables, and box-build / integration (control-cabinet wiring and sub-assemblies). Everything is built to your drawing, sample or wire list.

What industries and applications do you serve?

Industrial robot arms, collaborative robots (cobots), AGV/AMR mobile robots, humanoid robots, logistics and warehouse automation, commercial cleaning robots, plus medical robotics and semiconductor automation. The common thread is cabling that has to survive real motion, vibration and EMI rather than sit static in a panel.

How do I start, and do you sign an NDA?

Send a drawing, a physical sample, or photos plus measurements and a wire list to sales@roboticscableassembly.com or through our quote form. Yes — we sign NDAs before reviewing proprietary designs; confidentiality is standard and your designs remain strictly protected.

Quoting, drawings & no-drawing builds

What we need to quote, and how we proceed when documentation is incomplete.

What do you need to give me a quote?

Ideally a manufacturing drawing or wire list with overall length, wire types/AWG, connector part numbers, pinout, and any shielding, sleeving or marking requirements. With that we typically return a quote in about 24 hours. The more complete the spec, the fewer assumptions we have to make.

I don't have a drawing — can you still build it?

Yes. We can build from a physical sample (reverse-engineered) or from photos plus measurements and a wire list, and we produce a manufacturing drawing for your approval before production. If a key detail is missing — length, wire type, BOM or pinout — we send you engineering questions rather than guessing, so the first article matches what your robot actually needs.

How do you handle pinout and wiring diagrams?

We build strictly to your pinout and produce a wiring diagram for approval. Any pinout correction is confirmed in writing and updated in the drawing before production starts. This matters on robot harnesses where one swapped signal pair can disable a servo loop or an encoder feedback line.

How do you manage drawing revisions and length discrepancies?

We build to the approved drawing revision and always reference the revision number. If a length or other discrepancy appears, we confirm which revision you are using and resolve it before or at first article, so a stale revision never reaches production.

MOQ, lead time, packaging & shipping

Order minimums and timelines for prototype and volume robotics builds.

What is your minimum order quantity (MOQ)?

Our MOQ is low — prototypes start from a few pieces, which suits R&D and pilot robot builds. The main exception is custom-color wire: a non-standard insulation color usually carries a per-color reel minimum (roughly 200–500 m). Standard colors avoid that minimum.

What are your lead times?

Samples typically take about 1–2 weeks. Volume production usually runs about 3–6 weeks after drawing approval and payment, driven mainly by connector and terminal availability. Long-lead or obsolete connectors are the most common schedule risk, so we flag them at quote time and propose alternates where possible.

How are assemblies packaged and shipped?

Assemblies are coiled or trayed to protect connectors, anti-static packed where needed, labeled per your part number, and foam-protected for transit. We ship EXW, FOB or DDP by DHL, FedEx, UPS or sea freight depending on volume and destination.

Cables, connectors & high-flex robotics specifics

The technical detail that matters most for cabling that moves with the robot.

Can you supply high-flex drag-chain cable rated for continuous motion?

Yes. For robot arms, cable carriers (drag chains / e-chains) and AGV/AMR routing we use continuous-flex cable built with fine-stranded conductors and bend-tolerant insulation, rated for millions of flex cycles within a specified bend radius. We confirm your bend radius, travel and cycle-life target so the conductor construction, jacket and routing match the duty cycle rather than using a static-rated cable that would fatigue and fail.

What wire temperature ratings do you offer, and silicone vs. Teflon?

Common ratings: PVC about 80–105°C, silicone about 150–200°C, and PTFE/FEP (Teflon) up to about 200°C. Note that FEP is sometimes only rated 105°C unless the high-temp grade is specified, so we confirm it on the datasheet. For small contacts, Teflon/FEP usually seats better than silicone, because silicone's larger OD and softer wall may not fit tiny terminals. On robot joints we also weigh flex life alongside temperature, since the wire near a motor or EOAT sees both heat and constant bending.

Can I get custom wire colors?

Yes. A non-standard color is available but usually carries a per-color reel minimum (roughly 200–500 m) and may add a small cost; standard colors avoid the minimum. There is usually no lead-time impact. Custom colors help with pinout identification and harness branch coding on complex robot assemblies.

How do you handle EMI shielding on robot cables?

We use shielded cable (foil and/or braid), an overall shield over unshielded pairs, or an added EMI shielding sleeve, and we advise the most effective method for your EMC needs. On robots this matters because servo drives, VFDs and motor power lines sit close to sensitive encoder, sensor and bus signals; we plan shield termination (360° backshell or pigtail) and grounding so noise does not couple into feedback or communication lines.

Which connectors do you integrate?

Molex, JST, TE/AMP, Deutsch, Hirose, M12/M8 (common on robotics sensors and industrial buses), FAKRA, LEMO, Harwin, Amphenol and RF series, among others. Send a part number, or we cross to an equivalent. For long-lead or obsolete parts we propose a form-fit-function alternate for your approval, and you may also consign your own components for us to assemble.

What overmolding, strain relief and sleeving options do you offer?

Overmolding (typically PVC, or TPU/TPE, with UL-recognized materials where NRTL approval is needed); strain relief via heat-shrink (including adhesive-lined), backshells and grommets; and sleeving such as PVC sleeve, expandable braided sleeve, corrugated loom/conduit for abrasion in cable carriers, and EMI shielding sleeve. On robots these protect cables at the high-stress exit points around joints and the EOAT.

Can you add marking and labeling?

Yes. Printed labels, heat-shrink printing or wire markers per your drawing. We can print identification directly onto heat-shrink tubing and add UL-rating wire markings, which helps field service trace circuits on a deployed robot.

Quality, testing & certifications

How we prove an assembly is built right before it ships.

What workmanship standard and testing do you follow?

We build to IPC/WHMA-A-620, the accepted workmanship standard for cable and wire harness assemblies. Testing includes 100% continuity, hi-pot where specified, crimp pull tests, and dimensional and visual inspection. For motion-rated robot cables we can align the test plan with the real duty cycle rather than relying on continuity alone.

Do you provide a First Article Inspection (FAI)?

Yes. We produce a first article / first sample with inspection data for approval before volume. A sample or FAI fee may apply and is often credited to the order. This is the checkpoint where we confirm length, pinout, shielding and connector seating against the approved drawing revision.

Are your materials RoHS compliant, and do you offer UL/CSA wire?

We use RoHS-compliant materials with component-level RoHS certificates. A finished harness may not carry a single RoHS certificate, but we supply the underlying wire and component certs. UL-recognized wire (for example UL758 AWM) and CSA-certified wire (for example CSA C22.2 No. 210) are available on request.

What quality certifications does the factory hold?

ISO 9001 quality management, with IATF 16949 (automotive) or ISO 13485 (medical) processes applicable depending on the program, plus UL-recognized components and RoHS compliance. We align the documentation package to whichever standard your robotics application requires.

Authority Links Buyers Commonly Use

Neutral references for wire harness terminology, crimping, EMI shielding, and quality-system context.

Still have a question about your robot harness?

Send a drawing, a sample, or just photos and a wire list. We will come back with engineering questions and a quote — typically within 24 hours.