Custom Ring Terminal Cable Assembly Manufacturer

Yihetai manufactures custom ring terminal cable assemblies and ring terminal wire harnesses for grounding, battery connection, power distribution, automotive electronics, industrial equipment, renewable energy systems, household appliances, medical devices and OEM electrical applications.

Whether you need a simple single-wire ring terminal lead or a complex multi-branch wire harness with ring terminals, connectors, sleeves, labels and protective tubing, Yihetai can build a reliable, ready-to-install cable assembly according to your drawing, sample or application requirements.

With more than 25 years of wire harness manufacturing experience, in-house wire processing capability, strict quality control and flexible production capacity, we support both low-volume custom projects and high-volume production orders.

What Is a Ring Terminal Cable Assembly?

A ring terminal cable assembly is a wire or cable with one or more ring terminals crimped or connected to the conductor. The ring terminal is designed with a closed circular end, allowing it to be fixed securely with a screw or bolt.

This structure makes ring terminal cables suitable for applications where vibration, movement, electrical load or installation safety is important.

Common names include:

Ring terminal wire harness
Ring terminal cable assembly
Eyelet terminal wire
Ground wire harness
Battery ring terminal cable
Ring lug cable assembly
Ring terminal lead wire
Custom terminal cable assembly

Ring terminal assemblies are commonly used for power transmission, grounding, signal connection, battery connection, chassis connection and control cabinet wiring.

Ring Terminal Size & Stud Hole Selection Guide

Choosing the correct ring terminal size is critical for a reliable electrical and mechanical connection. The ring hole must match the screw, stud, bolt or grounding point of your equipment. If the hole is too small, the cable cannot be assembled. If the hole is too large, the terminal may move during vibration, causing unstable contact, heat generation or connection failure.

Yihetai can manufacture ring terminal cable assemblies according to your screw size, wire gauge, current requirement and installation space. Common stud hole sizes include M3, M4, M5, M6, M8 and M10. Custom ring terminal sizes can also be reviewed according to your drawing or sample.

Stud Hole Size	Typical Use
M3 Ring Terminal	Small electronic devices, PCB grounding, compact control modules
M4 Ring Terminal	Low-voltage power connection, sensors, small equipment grounding
M5 Ring Terminal	Power supply wiring, control cabinets, industrial equipment
M6 Ring Terminal	Battery connection, grounding wires, automotive accessories
M8 Ring Terminal	Heavy-duty power cables, battery packs, energy storage systems
M10 Ring Terminal	High-current power connection, large battery terminals and industrial systems

Ring Terminal Cable Assembly Structures

Ring terminal cable assemblies can be designed with different end structures depending on the equipment connection method. Yihetai can manufacture simple single-end ring terminal cables as well as complex power, grounding and branch cable assemblies.

Cable Structure	Description
Ring Terminal to Open End Cable	One end with ring terminal, other end stripped, tinned or prepared for soldering
Ring Terminal to Ring Terminal Cable	Ring terminals on both ends for grounding, battery or power connection
Ring Terminal Grounding Wire	Used for chassis grounding, equipment grounding and electrical safety connection
Battery Ring Terminal Cable	Designed for battery packs, chargers, energy storage and power systems
Ring Terminal to Faston Cable	One end ring terminal, other end quick disconnect or Faston terminal
Ring Terminal to Connector Cable	Ring terminal combined with JST, Molex, TE or custom connector
Ring Terminal with Heat Shrink Tube	Heat shrink protection for insulation, strain relief and appearance
Heavy Duty Ring Lug Cable	Larger wire gauge and ring lug for higher-current power applications
Multi-Branch Ring Terminal Harness	One or more ring terminals combined with multiple branches or connectors
Custom Grounding Harness	Designed according to chassis, cabinet or equipment grounding layout

Terminal Material, Plating & Insulation Options

Different applications require different ring terminal materials, plating and insulation styles. Yihetai can help select suitable terminal options based on current, environment, mechanical strength and installation method.

Option	Available Choices
Terminal Material	Copper, brass, tin-plated copper or customer-specified material
Plating	Tin plating, nickel plating or project-specific plating
Insulation Type	Non-insulated, PVC insulated, nylon insulated, heat shrink insulated
Barrel Type	Closed barrel, open barrel or heavy-duty lug type
Ring Style	Standard ring, narrow ring, heavy-duty ring lug or custom shape
Protection	Heat shrink tube, PVC sleeve, silicone sleeve or custom insulation
Cable Type	PVC wire, silicone wire, UL wire, high-temperature wire, power cable
Conductor	Bare copper, tinned copper or stranded copper conductor

For power, battery and grounding applications, terminal material and crimping quality are especially important. The correct terminal selection helps improve electrical conductivity, mechanical strength and long-term connection reliability.

Heat Shrink, Sleeve & Labeling Options

Ring terminal cable assemblies often require additional protection and identification for safe and easy installation. Yihetai can customize heat shrink tubing, protective sleeve, cable label and color marking according to your equipment requirements.

Option	Purpose
Heat Shrink Tube	Provides insulation, strain relief and a clean appearance
Dual-Wall Heat Shrink	Adds better sealing and protection when required
PVC Sleeve	Protects the terminal crimping area and improves insulation
Silicone Sleeve	Suitable for applications requiring flexibility or higher temperature resistance
Color Marking	Helps identify positive, negative, ground or different circuits
Cable Label	Shows part number, polarity, circuit number or customer information
Barcode Label	Supports production traceability and inventory management
Custom Packaging Label	Suitable for OEM production and assembly line use

For battery, grounding and power cable assemblies, we recommend clearly marking polarity, cable function and installation direction when needed.

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

Application-Specific Design Notes

Different ring terminal cable applications require different wire, terminal and protection designs. Yihetai can help review your application and recommend a suitable cable assembly structure.

Battery Packs & Chargers: Wire gauge, current capacity, ring hole size, heat shrink protection and polarity marking
Automotive Electronics: Vibration resistance, grounding reliability, cable routing and temperature environment
Industrial Control Equipment:Terminal strength, cabinet wiring layout, label marking and long-term connection stability
Grounding Wires:Low resistance connection, correct stud size, secure crimping and corrosion-resistant terminal
Power Supply Systems:urrent load, insulation requirement, terminal material and cable length
Solar & Energy Storage:Outdoor environment, high-current connection, cable protection and safety labeling
Motorcycle & Marine Equipment:Moisture resistance, vibration, terminal plating and protective sleeve
LED Lighting & Electrical Devices:Low-voltage power wiring, compact routing and customized cable length

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.

Crimping Quality Control for Ring Terminal Cable Assemblies

Yihetai controls the crimping quality of ring terminal cable assemblies through wire stripping inspection, terminal matching, crimp height control, pull force testing, continuity testing and visual inspection.

Quality checks can include:

Correct wire gauge and terminal size matching
Stripping length inspection
Crimp height and crimp width inspection
Terminal pull force test
Insulation support inspection
Ring hole size and terminal surface inspection
Continuity and short/open test
Heat shrink position and appearance inspection

This helps reduce loose terminals, poor contact, unstable resistance and assembly errors before the product reaches your production line.

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.

What is the difference between a ring terminal cable and a spade terminal cable?

A ring terminal has a closed circular end that is fixed by a screw or bolt, providing a stronger and more secure connection. A spade terminal has an open fork shape and can be installed or removed more easily, but it may not provide the same vibration resistance as a ring terminal.

Can Yihetai customize the ring terminal hole size?

Yes. Yihetai can customize ring terminal hole sizes such as M3, M4, M5, M6, M8, M10 and other specifications according to your installation requirements.

Request a Custom Ring Terminal Cable Assembly Quote

Yihetai provides custom ring terminal cable assemblies for customers who need stable quality, flexible customization and reliable manufacturing support from China. Send us your drawing, sample or specifications, and our team will help you develop a cost-effective cable assembly solution for your application.