Custom Ring Terminal Wire Harness Manufacturer

Yihetai is a professional ring terminal wire harness manufacturer in China, specializing in high-quality custom wire harness and custom cable assembly solutions for power and grounding applications. With over 23 years of experience, we provide reliable OEM wire harness and custom wiring solutions tailored to your specific electrical and mechanical requirements.

Our ring terminal wire harness products are designed for secure and stable electrical connections, especially in applications requiring strong fastening to studs, screws or grounding points. Based on your drawings or samples, we can customize wire gauge, cable length, ring terminal size, insulation material, shielding, overmolding structure and color.

As an experienced cable assembly manufacturer and wiring harness factory, Yihetai supports industries such as industrial equipment, automotive systems, energy storage, photovoltaic, medical devices and home appliances.

Whether you need prototypes or mass production, we are your reliable cable assembly supplier for high-performance connection solutions. Welcome to send us your drawings or specifications for a fast quotation.

What Is Ring Terminal Wire Harness?

A ring terminal wire harness is a customized wire or cable assembly that uses one or more ring terminals to create secure electrical connections to studs, screws or terminal posts. It is commonly used where a firm mechanical connection and stable electrical performance are required, especially in power, grounding and control circuits.

Compared with loose wires or standard off-the-shelf leads, a custom ring terminal wire harness improves assembly efficiency, reduces wiring errors and fits the actual installation space more accurately. It can be designed for different current loads, voltage levels, bending requirements, environmental conditions and equipment layouts. For many OEM applications, this type of harness is a practical choice because it combines reliable termination, faster installation and cleaner internal wiring.

Common Custom Ring Terminal Wire Harness Types We Manufacture

We manufacture different ring terminal wire harness configurations according to electrical, structural and application requirements, including:

Single-core ring terminal lead for power distribution and grounding
Ring terminal to ring terminal cable assembly for battery and power connections
Ring terminal to connector wire harness for control units and power modules
Multi-branch ring terminal wire harness for internal equipment wiring
Insulated ring terminal harness with heat shrink protection
Heavy-duty ring terminal cable assembly for high-current applications
PVC, XLPE, silicone, PTFE or other insulated custom cable assemblies
Harnesses with corrugated tubing, braided sleeve or tape wrapping
OEM wire harness with labels, color coding or custom packaging

If your project involves both stud fastening and plug-in connection, we can also combine ring terminals with Molex, JST, TE, Hirose and other compatible connector systems in one custom cable assembly.

Key Features of Our Ring Terminal Wire Harness

Custom cable lengths and wire configurations for different installation layouts
Available with insulated or non-insulated ring terminals in multiple stud sizes
Supports different wire gauges, conductor constructions and insulation materials
Heavy-duty versions with thick gauges for EV charging or machinery.
Suitable for both low-voltage signal lines and high-current power leads
Stable crimping, soldering and assembly process for reliable electrical contact
Optional heat shrink, sheathing, overmolding and protective tubing available
Designed for vibration resistance and secure screw-mounted connection points
100% electrical testing before shipment for continuity and connection reliability

Technical Specifications

Item	Specification
Product Name	Ring Terminal Wire Harness
Wire Gauge	Typically 28 AWG to 2 AWG, customized by application
Conductor Material	Bare copper, tinned copper, silver-plated copper or customized
Cable Type	Single wire, multi-core cable, flat cable or customized cable assembly
Terminal Type	Insulated ring terminal, non-insulated ring terminal, tube terminal, lug terminal
Ring Size	Customized according to stud or screw size
Connector Type	Ring terminal only, or combined with Molex, JST, TE, Hirose and equivalent connectors
Insulation / Jacket Material	PVC, XLPE, PE, TPE, silicone, PTFE, PVDF and others
Temperature Range	Depends on wire and terminal materials, typically -40°C to +105°C or higher
Voltage Rating	Customized according to wire specification and application
Protection Options	Heat shrink, braided sleeve, corrugated tube, tape wrapping, shielding, overmolding
Assembly Process	Cutting, stripping, crimping, soldering, twisting, tinning, bundling, labeling
Testing	Continuity, polarity, insulation resistance, withstand voltage, pull force, visual inspection
Production Basis	Customer drawing, sample, BOM list or technical requirement

Applications

Our ring terminal wire harness solutions are widely used in:

Industrial automation: Motor drives, control panels, PLC grounding.
Power distribution: Battery packs, inverters, switchgear terminals.
Automotive systems: Engine harnesses, chassis grounding, EV batteries.
Renewable energy: Solar inverters, wind turbine controls, energy storage.
Marine equipment: Boat engines, navigation systems, bilge pumps.
Consumer electronics: Power tools, appliances, LED drivers.
Medical devices: Equipment grounding, patient monitors.
Robotics: Joint actuators, sensor harnesses.

Customization Options

At Yihetai, all ring terminal wire harness products can be customized according to customer requirements.

Option	Details	Notes
Wire Type	Stranded, solid copper	UL approved conductors
Conductor	Bare, tinned copper	For corrosion resistance
Wire Gauge	2-28AWG	Custom
Length	6″ to 20 ft, custom increments	Custom
Color	Per Pantone, standard red/yellow/black	Custom
Ring Terminal	Size M4-M12, insulated/non-insulated	Custom
Jacket Material	PVC, silicone, fiberglass braid	Flame-retardant options
Process	Crimping, soldering, overmolding	Accroding to your request
Testing	Pull, Hi-pot, continuity	Accroding to your request

We can manufacture based on customer drawings, samples, BOM lists or application requirements.

Send us your drawing, sample or specification for a fast quotation

Manufacturing Capability

As a leading wire harness manufacturer, Yihetai operates a state-of-the-art wiring harness factory in Fujian, China, with automated crimping machines, injection overmolding, and laser cutting for precision. We handle volumes from prototypes to millions annually, sourcing premium materials like tinned copper rings and UL wires. From material selection to final assembly and testing, all processes follow strict quality control for reliable performance.

Typical lead time: 5-7 days for prototypes, 3-4 weeks for mass production. Our custom cable assembly lines support rapid iteration based on your feedback.

Quality Assurance & Control

Quality control is built into the entire manufacturing process of our ring terminal wire harness products. From drawing review and raw material confirmation to crimping control, assembly inspection, electrical testing and shipment release, each step follows a documented quality management procedure. We focus not only on finished product inspection, but also on process control to reduce variation between batches and ensure reliable performance in actual applications. Our manufacturing system operates under ISO 9001:2015 standards, and we also support projects requiring UL-related materials and automotive quality management expectations. For customers in demanding industries, this provides stronger confidence in process discipline, traceability and product consistency.

Inspection and control items may include:

Incoming material inspection
Wire gauge and color verification
Terminal crimp height and appearance check
Terminal crimp pull test
Visual inspection of insulation and stripping quality
Continuity and polarity check
Insulation resistance test
High-voltage / withstand voltage test
Dimensional and fixture inspection
Final appearance and packaging inspection
Every harness is delivered with guaranteed electrical integrity and consistent quality across batches.

Why Choose Yihetai

25+ years of wire harness and cable assembly experience across multiple industries and application types

In-house manufacturing process control, from wire processing to harness assembly and testing, for better consistency

Strong engineering team for custom design and connector matching, helping customers move faster from concept to production

Flexible customization capability, supporting drawings, samples, BOM lists and OEM wire harness requirements

Reliable quality system and 100% electrical testing, improving delivery confidence for both purchasing teams and engineers

Fast communication and practical custom wiring solutions, whether for low-volume prototypes or ongoing production projects

Frequently Asked Questions

Can you produce ring terminal wire harnesses based on our drawing or sample?

Yes. Yihetai can manufacture according to customer drawings, samples, BOM lists or technical requirements. We can also discuss the application first and recommend a suitable custom wire harness structure.

Can you customize wire gauge, cable length and ring terminal size?

Yes. These are the most common customization items. We can adjust wire specification, conductor type, terminal type, stud size compatibility, insulation material, color and protective structure.

Do you only make simple single-wire products?

No. We manufacture both simple and complex products, including single-core leads, multi-branch harnesses, ring-to-connector assemblies and custom cable assembly solutions for equipment integration.

Can you use original or alternative connectors and terminals?

Yes. We can work with original parts or qualified alternatives based on your project target, budget and sourcing needs. This helps balance performance, availability and cost.

What tests do you perform before shipment?

Typically, we perform visual inspection and electrical testing such as continuity checks. Depending on the project, dimensional inspection, crimp pull-force testing and high-voltage testing can also be included.

Looking for a reliable ring terminal wire harness manufacturer?

Send us your drawing, sample or technical requirements, and our team will provide a customized wire harness or cable assembly solution for your project