Custom Cable Assembly & Connector Manufacturing

Your drawing in, production-ready harnesses out —in 15 days.

HSC is a custom manufacturing specialist: our engineering and QC desk is in Tai'an, Shandong · at the foot of Mount Tai · and production runs on vetted lines in Bao'an, Shenzhen, China's densest connector supply chain. Prototypes in 3 days; every shipment passes 100% electrical testing before it leaves for your line.

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3-day prototypes 15-day lead time MOQ 100 pcs Free samples* 100% electrically tested

What we make

Three product lines, one engineering standard

Every assembly is built from your schematic or sample: connector series, wire gauge, housing, overmold and length are all customizable.

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Custom Wiring Harnesses

Terminated, crimped and overmolded harnesses for appliances, instruments and vehicles.

UL1007/10152—0 circuitsPitch 1.25—.08

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Waterproof Connectors

IP65–IP68 circular and rectangular connectors for outdoor LED, e-bike and industrial use.

IP68Vibration-proof-20~85°C

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Type-C & Data Cable Assemblies

USB-C, DC power and signal cables for consumer electronics and smart hardware.

PD 100WE-MarkerOvermold

See full specifications →

Why buyers switch to us

The control of a factory —without the risk of an unknown one

One engineering contact —DFM feedback within 24h of your drawing
Vetted partner plants —long-term lines we manage daily, not spot-sourced workshops
Tooling & process control ours —crimp specs, materials and fixtures locked before batch one
100% electrical + hi-pot test —inspected and packed under our supervision, not the plant's
Batch test reports shipped with goods —full traceability by lot
Sample-first culture —evaluate quality before committing
Hours that overlap your market —Japan and Korea share our clock; Vietnam, Thailand and Indonesia sit within two hours

Semi-automatic wire soldering station at HSC's partner line in Tai'an — Semi-automatic soldering station —wire feeding and tinning under our fixture specs

How it works

From drawing to delivery in 4 steps

Send your requirement

Drawing, BOM, sample photo or application description —any format works.

DFM & quotation in 24 hours

Engineering review, structure suggestion and tiered pricing with tooling cost breakdown.

Sample confirmation

Free standard samples (freight collect) or paid custom prototype, 3— working days.

Mass production & direct shipping

100% tested, packed to your spec. Shipped direct from our Shenzhen partner factory — FOB Shenzhen or door-to-door DHL / FedEx.

Industries we serve

Built for the devices your customers buy

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Robot Vacuum & Smart Home

Motor, sensor and battery harnesses.

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E-bike & Light EV

Battery, display and controller wiring.

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LED Display & Signage

Waterproof power + data connectors.

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Personal Care

Type-C charging assemblies, IPX7.

Read application notes →

FAQ

Questions buyers always ask

Are you a factory or a trading company?

Neither, in the usual sense —we are a custom manufacturing specialist. Engineering, tooling control and final QC are ours; production runs on long-term partner lines in Bao'an, Shenzhen that we manage daily. You get factory-level pricing and process control with one accountable contact —and you're welcome to visit the lines with us.

What is your MOQ and lead time?

MOQ from 100 pcs for standard assemblies, 500 pcs for custom tooling. Prototypes in 3 days, mass production 10—5 days.

Do you provide certifications?

RoHS / REACH reports and DoC for all materials; component-level UL where applicable. We supply full test reports with every shipment.

How do payments work?

30% deposit, 70% before shipment (T/T). PayPal for sample orders. Long-term customers: negotiable.

Can you match Molex/JST/Yazaki specs?

Yes —cross-reference lists available. Send the part number or a photo and we will quote a compatible or improved solution.