Henryun Opto brand mark
Cutaway illustration of a shielded high-voltage wiring harness with braided shielding and multiple color-coded conductors

Engineered Connections for New-Energy Mobility

Custom high- and low-voltage wiring harness solutions for demanding vehicle and industrial applications.

Application Matrix

Four markets, each with a different electrical architecture

We map power, signal, packaging and verification needs to the operating platform—not to a generic catalog.

View all applications
Engineering Workflow

From Your Drawing to a Documented, Production-Ready Harness

A focused sequence for build-to-drawing and OEM/ODM programs, from first review to production progress updates.

  1. 01

    Drawing & Requirement Review

    Share your drawing, specification, and application context so our engineering team can scope the program.

  2. 02

    Build-to-Drawing Engineering

    Harness construction, routing, and terminal placement are engineered to your specification, including OEM/ODM programs.

  3. 03

    Sampling

    Samples are produced for your team to validate fit, routing, and function before production is scheduled.

  4. 04

    Documentation & Inspection

    Technical and test documentation is prepared, with third-party inspection support coordinated where requested.

  5. 05

    Production & Progress Updates

    Production runs on our semi-automatic harness lines, with progress updates provided to keep your team informed.

Manufacturing Snapshot

A Focused Production Base for Custom Harness Programs

Our phase-one workshop is purpose-built for build-to-drawing high- and low-voltage harness production.

Workshop
phase-one workshop, approximately 5,000 m²
High-Voltage Lines
3 semi-automatic high-voltage harness lines
Low-Voltage Lines
6 semi-automatic low-voltage harness lines
Location
No. 398 Dongsheng Avenue, Wuzhen Town, Tongxiang, Zhejiang, China
Manufacturing & Validation

Production control from wire preparation to final inspection

A connected manufacturing route supports build-to-drawing harness programs. The equipment shown is used internally and is not offered for sale.

Wire preparation
Automatic cutting, stripping and crimping
Assembly
Housing insertion, routing and ultrasonic welding
Electrical checks
Continuity, withstand voltage and voltage drop
Laboratory
18 measurement and validation capabilities
Explore the process
Henryun high-voltage harness electrical test station
Electrical test01
Operator assembling orange high-voltage wiring harnesses
Harness assembly02
Operator following a documented harness assembly instruction
Work instruction03
Henryun pull-force test equipment checking a terminal connection
Pull-force test04
Operator preparing a terminal cross-section sample
Cross-section preparation05
Microscope station used for terminal cross-section inspection
Section inspection06
Operator assembling connectors on high-voltage cable assemblies
Connector assembly07
Close-up of manual terminal processing on an orange high-voltage cable
Terminal processing08
Operator completing connector assembly on finished cable sets
Final assembly09
Operator checking aligned high-voltage cables during production
Process control10
Wide view of the Henryun wiring harness production floor
Production floor11
Henryun production line with processing workstations
Manufacturing line12
Henryun high-voltage harness electrical verification station
Electrical verification13
Operator preparing a set of orange high-voltage wiring harnesses
Harness preparation14
Operator preparing connectors and protective conduit during harness assembly
Connector preparation15
Operator aligning high-voltage wiring harness branches to a work instruction
Harness alignment16
Operator checking high-voltage harness routing during assembly
Assembly check17
Pull-force measurement equipment testing a terminal connection
Pull-force measurement18
Close view of terminal pull-force verification equipment
Terminal verification19
Wide view across the Henryun harness production workshop
Workshop overview20
Henryun production floor with multiple harness processing workstations
Production capacity21
Why Henryun

A focused manufacturing partner for custom harness programs

Henryun Optoelectronic Technology (Zhejiang) Co., Ltd. is structured around one objective: turning your drawings into reliable, production-ready wiring harnesses.

Build-to-Drawing Engineering

We work directly from your drawings and specifications, translating engineering input into a manufacturable harness design.

High- and Low-Voltage Under One Roof

A single supplier for both high-voltage and low-voltage harness programs, reducing coordination overhead across your supply chain.

Structured Production Lines

Three semi-automatic high-voltage lines and six semi-automatic low-voltage lines support consistent, process-controlled output.

Documented Testing Support

Technical and test documentation, plus support for third-party inspection, so your program has the paper trail it needs.

Have a drawing or a harness requirement to discuss?

Send your requirements and our engineering team will follow up with a technical response and next steps for sampling or documentation.

Request a Quote
Frequently Asked

Common questions about custom harness programs