Custom M8/M12 Waterproof Cable Assembly Manufacturer

Yihetai is a professional custom M8/M12 waterproof cable assembly manufacturer in China. We provide customized M8 and M12 circular connector cable solutions for industrial sensors, actuators, automation systems, machine vision, outdoor control equipment, robotics, LED lighting, energy equipment and other harsh-environment applications. As an experienced wire harness manufacturer, custom cable assembly producer and cable assembly supplier, Yihetai supports both standard and fully customized waterproof cable designs.

Based on customer drawings, samples, wiring diagrams or application requirements, we can customize connector size, pin count, coding type, cable length, wire gauge, cable jacket, shielding, overmolding structure, connector orientation, terminal type, branch design and labeling. Our M8/M12 waterproof cable assembly products can be made as male or female connectors, straight or right-angle connectors, single-ended or double-ended cable assemblies, M8 to M12 adapter cables, M12 to open-end cables and multi-branch OEM wire harness solutions.

With more than 25 years of wiring harness experience, in-house cable processing capability and strict quality control, Yihetai helps engineers and buyers develop reliable waterproof connection solutions from prototype to mass production. Send us your drawing, sample or specification, and our team will provide a fast technical evaluation and quotation for your project.

What Is M8/M12 Waterproof Cable Assembly?

M8/M12 waterproof cable assembly is a customized cable or wire assembly using M8 or M12 circular connectors for waterproof, dustproof and secure electrical connection. These assemblies are commonly used to connect sensors, actuators, motors, controllers, I/O modules, cameras, lighting systems and industrial equipment.

The “M8” and “M12” names usually refer to the connector thread size. M8 connectors are smaller and often used for compact sensors and limited installation space. M12 connectors are larger and commonly used for industrial automation, fieldbus systems, Ethernet communication, machine vision, outdoor devices and power or signal connections.

Compared with standard cable products, a custom M8/M12 waterproof cable assembly can better match equipment layout, pin definition, cable routing, mechanical protection and operating environment. It can be designed with straight connectors, right-angle connectors, male or female ends, panel mount connectors, shielded cables, PUR jackets, PVC jackets, overmolded strain relief and special terminal ends.

As a professional cable assembly manufacturer, Yihetai focuses on producing customized M8/M12 waterproof cables that help OEM customers improve assembly efficiency, reduce installation errors and ensure consistent connection performance.

Common Custom M8/M12 Waterproof Cable Assembly Types We Manufacture

M8 3/4-pin A-coded for sensors and actuators in compact setups
M12 4/5-pin A-coded for standard sensor/actuator power/signals
M12 5-pin B-coded for Profibus fieldbus networks
M12 4-pin D-coded for Ethernet/IP data transmission
M12 X-coded 8-pin for high-speed Gigabit Ethernet
Right-angle or pigtail variants for tight spaces
Right-angle or pigtail variants for tight spaces
M12 to RJ45 industrial Ethernet cable
M8/M12 Male to Female Extension Cable
M8/M12 to Open-End Cable Assembly
M8/M12 to with ring terminals, spade terminals, JST, Molex, TE, Dupont or other connectors for internal equipment wiring

Key Features of our M8/M12 waterproof cable assembly

Custom lengths (0.2-30m), gauges (22-28 AWG), and multi-core configs
Compatible with TE, Phoenix, Lumberg, Binder; A/B/D/X coding
IP67/IP68rated for submersion and high-pressure washdown
360° shielding options for EMI/RFI noise rejection
Overmolding in PUR/TPU for chemical/oil resistance
-40°C to +105°C operation in harsh industrial settings
Vibration-proof (10G) with secure screw coupling
Supports A-coded, B-coded, D-coded, and X-coded connector configurations for different signal protocols
Available in straight, right-angle, male, female, single-ended and double-ended structures
100% tested per IPC/WHMA-A-620 standards

Technical Specifications

Item	Available Options
Product Name	Custom M8/M12 Waterproof Cable Assembly
Connector Size	M8 (3-8 pin), M12 (2-17 pin); A/B/D/X-coded
Connector Gender	Male, female, male-to-female, male-to-male, female-to-female
Connector Orientation	Straight, right-angle, panel mount, molded type
Pin Number	M8: 3, 4, 5, 6, 8 pin; M12: 2, 3, 4, 5, 8, 12 pin or customized
Coding Type	A-coded, B-coded, C-coded, D-coded, X-coded, S-coded, T-coded, L-coded
Cable Type	Sensor cable, actuator cable, Ethernet cable, fieldbus cable, power cable, custom cable
Wire Gauge	Commonly 22AWG–28AWG, customized according to current and signal requirements
Cable Length	0.2 m to 30 m or customized
Conductor	Bare copper, tinned copper, stranded copper
Shielding	Unshielded, foil shield, braided shield, drain wire
Jacket Material	PVC, PUR, TPE, TPU, silicone or customized material
Waterproof Rating	Commonly IP65 / IP67 / IP68 depending on structure and requirement
Temperature Range	Typically -25°C to +80°C, customized by cable material
Voltage Rating	Customized according to connector type, pin count and application
Current Rating	4A (signal), 16A (power)
Termination	Open end, stripped, tinned, crimped terminal, connector-to-connector, panel mount
Testing	Continuity test, short/open test, high-voltage test, insulation resistance test
Compliance	ISO 9001:2015, UL and IATF 16949 manufacturing system support

Applications

Our M8/M12 waterproof cable assembly solutions are widely used in:

Industrial automation equipment
PLC control systems and I/O modules
Industrial sensors and actuators
Servo systems and motor control equipment
Robotics equipment and robot arms
Machine vision systems
CNC machines and machine tools
Factory communication systems
Industrial Ethernet and fieldbus networks
Solenoid valves and pneumatic equipment
Control panels and electrical cabinets
Smart manufacturing production lines
Packaging machinery and conveying systems
LED lighting systems
Outdoor display equipment
Smart home control systems

Security and monitoring equipment
Commercial electronic devices
Home appliances with waterproof interface requirements
Agricultural monitoring equipment
Outdoor power and signal connection devices
Consumer electronics requiring durable circular connectors
Medical devices and diagnostic equipment
Automotive electronic systems
Electric vehicle peripheral equipment
Energy storage systems
Photovoltaic monitoring equipment
Renewable energy control systems
Marine and outdoor electronic equipment
Railway and transportation control devices
Laboratory instruments and test equipment
Harsh-environment OEM electronic systems

If your equipment requires waterproof signal, power or data connection in a compact and reliable structure, Yihetai can design a custom M8/M12 waterproof cable assembly to match your installation and performance requirements.

Customization Options

At Yihetai, all M8/M12 waterproof cable assembly can be customized according to customer requirements.

Custom Item	Available Options	Notes
Wire Type	Sensor cable, actuator cable, Ethernet cable, fieldbus cable, power cable	Selected according to application and transmission requirement
Conductor	Bare copper, tinned copper, stranded copper	Customized for flexibility and electrical performance
Wire Gauge	22AWG–28AWG or customized	Based on current, signal and connector pin size
Length	0.2 m to 30 m or customized	Custom tolerance available
Color	Black, gray, orange, blue, green or customized	Cable jacket and wire color coding available
Connector	M8, M12, male, female, straight, right-angle, panel mount	Single-ended or double-ended design
Coding	A, B, C, D, X, S, T, L coding	Matched to sensor, fieldbus, Ethernet or power application
Pin Number	3, 4, 5, 6, 8, 12 pin or customized	Depends on connector type and application
Terminal	Open end, stripped, tinned, ferrule, ring terminal, spade terminal	Available for cabinet or equipment wiring
Jacket Material	PVC, PUR, TPE, TPU, silicone	Selected according to flexibility, abrasion, oil and temperature requirements
Shielding	No shield, foil shield, braided shield, drain wire	Recommended for data and signal applications
Process	Cutting, stripping, crimping, soldering, overmolding, assembly	In-house manufacturing capability
Labeling	Heat shrink label, printed label, part number label	Helps installation and traceability
Testing	Continuity, short/open, Hi-Pot, insulation resistance	100% electrical testing before shipment

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

Yihetai is an experienced wiring harness factory and custom cable assembly manufacturer with in-house capabilities for wire processing, cable cutting, stripping, crimping, soldering, injection molding, assembly, labeling and electrical testing. For M8/M12 waterproof cable assembly projects, we can support early engineering review, connector selection, cable material matching, pinout confirmation and sample development.

Our factory can manufacture simple M8 sensor cables, M12 waterproof extension cables, shielded M12 communication cables, panel mount cable assemblies and complex OEM wire harnesses with multiple branches. This allows customers to source both standard-style waterproof cables and fully customized harness solutions from one reliable supplier.

From material selection to final assembly and testing, all production processes are carried out under strict quality control to ensure consistent product performance and delivery reliability. Typical lead time for prototypes is 5-7 days, and mass production can usually be arranged within 3-4 weeks depending on material availability, order quantity and technical complexity.

Quality Assurance & Control

We implement a complete and traceable quality control system covering raw materials, production processes, and final inspection. Each step is documented to ensure consistency and reliability. Our manufacturing complies with ISO 9001:2015, UL certification, and IATF 16949 standards, ensuring international-level quality management .

Inspection processes include:

Incoming inspection for cable/connector specs
Crimp pull test (>20N)
Visual, continuity, and polarity verification
Hi-pot (1500V) and insulation resistance
IP67/68 immersion (24h/1m depth)
Vibration (10G, 10-500Hz) and thermal shock
Every harness is delivered with guaranteed electrical integrity and consistent quality across batches

Why Choose Yihetai

25+ Years of Custom Wire Harness Experience Across Industrial, Automotive, Medical, Appliance, Energy, Communication, and Consumer Electronics Markets

Strong Engineering Support to Help Customers Select the Right M8/M12 Connector Type, Pin Count, Coding, Cable Material, Shielding Structure, Termination, and Waterproof Overmolding Solution

Full OEM Customization Capability for Cable Length, Wire Gauge, Connector Orientation, Pinout, Jacket Material, Color, Label, Terminal, and Packaging

In-House Wire Processing and Assembly Production Covering Crimping, Soldering, Injection Molding, Assembly, and Testing

100% Electrical Testing Before Shipment to Ensure Reliable Performance of Every M8/M12 Waterproof Cable Assembly

Flexible Lead Time and Competitive Cost to Support Fast Samples, Trial Production, and High-Volume Manufacturing

Frequently Asked Questions

Can Yihetai customize M8/M12 waterproof cable assemblies according to our drawing?

Yes. Yihetai can manufacture custom M8/M12 waterproof cable assemblies based on your drawing, sample, pinout diagram, BOM list or technical specification. You can define connector size, gender, pin number, coding type, cable length, wire gauge, shielding, jacket material and end termination. Our engineering team will review the requirements and provide a practical production solution.

What is the difference between M8 and M12 waterproof cable assemblies?

M8 cable assemblies are smaller and are often used for compact sensors, actuators and devices with limited installation space. M12 cable assemblies are larger and more widely used for industrial sensors, fieldbus, Ethernet, control systems and power connections. If you are not sure which type is suitable, Yihetai can help evaluate your application and recommend the right connector solution.

Can you make shielded M12 cable assemblies for industrial Ethernet or signal transmission?

Yes. We can provide shielded M12 cable assemblies with foil shield, braided shield, drain wire and customized grounding structure. Shielded cable is recommended for industrial Ethernet, fieldbus communication, machine vision, sensors and other applications where electromagnetic interference may affect signal stability. We can also customize D-coded or X-coded M12 cable assemblies for data transmission requirements.

Do you support waterproof overmolding for M8/M12 connector cables?

Yes. Yihetai can manufacture overmolded M8/M12 waterproof cable assemblies with molded connector housings, strain relief and customized cable jacket materials. Overmolding helps improve sealing performance, mechanical strength, appearance consistency and long-term durability. It is especially useful for industrial automation, outdoor equipment, robotics and applications with frequent movement or vibration.

What information should I provide to get a fast quotation?

For a fast quotation, please provide connector type, M8 or M12 size, male or female gender, pin number, coding type, cable length, wire gauge, shielding requirement, jacket material, pinout, end termination and order quantity. If you already have a sample, drawing or connector part number, sending it to us will help us quote more accurately and quickly.

Looking for a reliable M8/M12 waterproof cable assembly 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.