Hengchang Technology

OEM / ODM

From Drawing to Mass Production in Six Steps

Both product lines — fiber patch cords and USB-C / electronic connectors — run through the same disciplined sequence. You always know which step we are on, what we need from you, and what you will receive at the end of it.

  • Written DFM feedback before you commit to tooling
  • First samples typically in about seven days
  • Tooling fee quoted openly, amortisable against volume
  • NDA signed before drawings are shared, on request
Fiber optic connector assembly fixture holding connectors during the manufacturing process

The process

Six steps, clearly owned

  1. 01

    Send your requirement

    Same day

    Email a drawing (PDF, DXF or STEP), a photo, a datasheet, or post us a physical sample. Tell us the target quantity and any deadline you are working to.

    You send: drawing, photo, sample or written specification.

  2. 02

    DFM review & quotation

    1–2 working days

    Our engineers check manufacturability, tolerance stack-up, materials and process. You receive written DFM feedback plus a costed quote covering tooling, unit price and lead time.

    You receive: DFM notes, tooling cost, unit price, lead time.

  3. 03

    Order confirmation & tooling

    Varies by tool

    Once the tooling approach is agreed, we start mould development in our own shop. You approve the drawing freeze before cutting begins.

    You receive: frozen drawing, tooling schedule, PO acknowledgement.

  4. 04

    Prototyping

    About 7 days

    First articles are produced from the new tooling and inspected. For fiber projects this is a pre-production run with full optical test data.

    You receive: sample units plus dimensional and optical test data.

  5. 05

    Sample approval

    Your schedule

    You test the samples against your own requirements. Any change is captured as a documented revision — the golden sample is signed off before volume begins.

    You sign off: golden sample and revision record.

  6. 06

    Mass production & QC

    Per agreed schedule

    Batch production with in-line checks and final inspection, then packing to your artwork and carton-marking instructions, and shipment.

    You receive: goods, inspection report and test report.

Tooling fee — how it works

Connectors and moulded cable ends cannot be produced without a mould, and a mould is real engineering and machining work. We charge for it, we show you what it covers, and we make it recoverable on volume.

  • Tooling is quoted separately and itemised — no hidden addition to unit price
  • The mould is developed in our own shop, so change control stays fast
  • Tooling cost can be amortised into unit price or rebated at agreed volumes
  • Your tooling is dedicated to your part and not reused for other customers
  • Repair and maintenance of the tool during the project is our responsibility

Confidentiality and NDA

Drawings and samples are commercially sensitive. We treat them that way by default, and we will formalise it whenever you need.

  • Mutual NDA signed before drawings are exchanged, if you require it
  • Project files are restricted to the engineers working on your part
  • Your branding, artwork and housing design are never reused for other clients
  • No photographs or case studies published without written approval
  • Samples and tooling returned or scrapped on request at project close

Send us your NDA template, or ask for ours — whichever is faster for your legal team.

Lead times

Typical timings, honestly stated

Every project is different, but these are the ranges we plan against. We confirm actual dates in writing at the quotation stage, not after you place the order.

Typical lead times by project stage
StageTypical duration
DFM feedback and quotation1–2 working days
New mould / tooling developmentTypically 2–4 weeks, tool dependent
First samples from new toolingAbout 7 days after tooling is ready
Fiber patch cord pre-production samples3–7 working days
Mass production, standard patch cords7–15 working days depending on quantity
End-face inspection equipment used to verify connector geometry during prototype approval
Tray of ceramic ferrules staged for connector assembly in the fibre plant

What to include in your first message

The more of this you can send, the faster step two finishes — but do not let a missing item stop you from writing. We will ask for whatever is still needed.

  • Product description, or the drawing / photo / sample itself
  • Target quantity, and whether it is a one-off or recurring order
  • Any standard you must meet (USB-IF, RoHS, REACH, customer spec)
  • Materials or finishes you already know you want
  • Delivery destination and required date
  • Whether you need an NDA in place first

Talk to an engineer

Enquiries are answered by the engineering team, not a call centre.

Start an enquiry

Send the first message today — DFM feedback within two working days

Attach a drawing, photo or datasheet. We reply with manufacturability notes, tooling cost, unit price and a realistic schedule.

OEM/ODM Process: From Drawing to Mass Production | 7-Day Prototyping