High-quality, customizable wire harnesses,
We support the reliability of industrial equipment.

Our company is a manufacturer that can provide one-stop service for the design, manufacturing, and inspection of wire harnesses required for all types of industrial equipment, from control panels to FA equipment.

table of contents

What is a wire harness?

  • A wire harness is a wiring component that bundles multiple wires or cables together and integrates them with terminals and connectors. It efficiently transmits power and signals, reducing the risk of disconnection or short circuits. With high durability due to its insulation and protective materials, it is an indispensable component in a wide range of fields, including automobiles, factory automation equipment, and medical devices.
    The terminology varies depending on the industry, and they are sometimes called "wiring harnesses" or "cable assemblies." In recent years, with the spread of EVs and IoT devices, miniaturization, weight reduction, and high density have progressed, and compliance with international standards and reduction of environmental impact have also become important.

Uses and Examples

Wire harnesses are used in the following applications:

  • Industrial Equipment

    These are essential components that support machinery operating in the harsh environments of factories.

    Industrial Robots
    A special harness is used for movable parts such as joints.
    Machine Tools
    Compatible with precision control systems such as NC lathes and machining centers.
    Semiconductor Manufacturing Equipment
    Organizing the complex wiring inside the massive device

  • Infrastructure and medical equipment

    This is a field where high levels of safety and reliability are required.

    Medical equipment
    MRI, CT, hemodialysis machines, etc.
    Communication equipment
    Wiring for server racks and communication base stations
    Power generation equipment
    Solar panel interconnection and wind power generation control systems

  • Transportation equipment (mobility)

    These are the fields in which harnesses are used most frequently, including automobiles, railways, and aircraft.

    Automobiles (gasoline cars and electric vehicles)
    Engine control, lights, air conditioning, autonomous driving sensors, etc.
    Thousands of power lines are strung throughout the vehicle.
    鉄道車両
    Used for coupling between vehicles and for control signals from the driver's cab.
    Aircraft/Spacecraft
    Lightweight and highly reliable, a harness made of special materials was adopted.

  • Home appliances/consumer equipment

    It's also essential for everyday electrical appliances.

    large home appliances
    Refrigerator, washing machine, air conditioner, microwave oven, etc.
    鉄道車両
    Motors and scanner control inside copiers and printers

Related standards

  • Domestic
    JIS, Electrical Appliance and Material Safety Law, JCS
    Overseas
    UL, CSA, IEC, EN, ISO
    Other Information
    MIL, IEEE, NEMA

    Our company offers global support, so you can rest assured even when ordering equipment for overseas markets.

    Click here for the specifications page.

Design review procedure

  • 1

  • Specifications

  • Standards compliant

    Check export standards such as UL, CE, and CCC.

  • usage environment

    For high temperatures, use silicone or fluororesin; for oily or chemical environments, use urethane or special rubber. "Movement cables" are essential for moving parts in robots and other applications.

  • 電気特性

    Ensure sufficient current capacity and pay attention to voltage drop. Shield precision signal lines to prevent noise.

  • Mechanical stress

    Maintain a minimum bending radius and protect against abrasion and impact with corrugated tubing or braided sleeves.

  • 2

  • Cable, connector, and terminal selection

We select major manufacturers and models that ensure workability, safety, reliability, and compatibility. Supply systems and quality assurance are also important.

Processing technology

  • Various processing technologies

    The method of harness processing varies depending on the application. For applications with high vibration and shock, such as automobiles and industrial machinery, crimping is used to prioritize strength. The key point is that the optimal processing method changes depending on factors such as environmental conditions, electrical requirements, mass production requirements, and reliability.

  • 1
    Soldering
    (Soldering)
  • Outline
    A method of joining metal terminals and wires using molten solder.
    Characteristics
    It has good electrical conductivity. It is susceptible to vibration and shock. There is a risk of insulation degradation due to heat.
    Use
    Wiring on electronic devices and circuit boards, etc.
  • 2
    Crimping
  • Outline
    A special tool is used to compress the terminals and wires, causing plastic deformation of the metals and thus joining them together.
    Characteristics
    High mechanical strength. Low electrical resistance. Suitable for mass production.
    Use
    Automobiles, industrial machinery, FA equipment, etc.
  • 3
    Crimping
  • Outline
    A method of fixing terminals or components by deforming them.
    Characteristics
    It can be fixed without using screws or welding. The strength may be slightly lower than that of crimping.
    Use
    Terminal fixing, component assembly
  • 4
    Fusion
  • Outline
    A joining method that fuses electrical wires together using heat and pressure, thereby fusing the materials themselves.
    Characteristics
    High electrical reliability. Resistant to vibration and temperature changes. Low corrosion risk.
    Use
    Industrial machinery, automotive harnesses, wiring in harsh environments
  • 5
    Insulation treatment
    (sleeve·
    (Tube processing)
  • Outline
    Protect the joints with heat shrink tubing or sleeves.
    Characteristics
    High insulation properties. Waterproof and dustproof.
    Use
    Outdoor equipment, automotive, industrial machinery
  • 6
    Pressure welding
    (IDC: Insulation
    Displacement
    (Page)
  • Outline
    Connect the wire by biting into it with the terminal blades without stripping the insulation.
    Characteristics
    High work efficiency. Reliability is slightly lower than crimping.
    Use
    Communication equipment, control panels

Key points for selecting a wire harness manufacturer

  • Quality and reliability

    100% inspection by visual inspection and inspection machine.

  • Customization capabilities

    Design tailored to the equipment and small-lot production,
    Flexible support, including drawing creation.

  • Delivery time and supply stability

    Short delivery times, stable supply, and even with sudden specification changes.
    System in place to respond

  • Cost Performance

    We reduce total costs through fair pricing and long-life design.
    Optimization proposals for mass production

  • Safety and compliance with standards

    Durability to withstand long-term use and a structure that prevents poor contact,
    Quality guaranteed by ISO, UL, and other certifications.

  • Sustainability(Environmental initiatives and SDGs)Consciousness

    Adoption of environmentally friendly materials, recycling support,
    Compliance with Green Procurement Standards

Recent trends

  • Lighter weight and smaller size

  • In response to the needs of EVs and electronic devices, wire harnesses are also becoming smaller in diameter and lighter in weight.

  • Enhanced functionality and high density

  • Development of high-performance, high-density wire harnesses is progressing due to the advancements in advanced driver-assistance systems (ADAS), autonomous driving, and IoT.

  • Reliability/High Durability

  • In applications such as automobiles, railways, and medical equipment, heat resistance, environmental resistance, and vibration resistance are required, and efforts are being made to improve inspection systems and quality control.

  • Digital design and inspection

  • The use of 3D design and automated inspection systems is leading to shorter development lead times and improved quality.

  • Manufacturing using automated machines

  • The shift from manual labor to a labor shortage has led to this trend.

  • Sustainability

  • Using environmentally friendly materials contributes to the SDGs.

Our strengths

  • 1

  • Flexible response to a wide variety of products and small production lots.

    We excel at prototyping and small-batch production, and we respond quickly to design changes. We manage thousands of types of components and have a system in place to process only what is needed, when it is needed.

  • 2

  • Highly reliable technology that can withstand harsh environments

    We possess advanced processing technologies to meet the needs of 24-hour operating factories and special environments, including oil-resistant, heat-resistant, and earthquake-resistant processing, as well as cable carrier countermeasures and EMC noise countermeasures.

  • 3

  • Strict quality assurance and traceability

    We ensure the high reliability required for industrial machinery through 100% continuity and pressure testing, cleanroom compatibility, and long-term management of processing history.

  • 4

  • Over half a century of experience and expertise

    Since its founding in 1972, we have designed and manufactured control equipment and harness products used in a wide range of industries. Our skilled manual craftsmanship is also one of our strengths.

  • 5

  • Design proposals from a field perspective (VE)

    We have the capability to propose solutions that support equipment manufacturers in reducing costs and improving quality, such as unitizing wiring and preventing incorrect insertions. Because we handle everything from control panel manufacturing to machine equipment manufacturing, we can propose the optimal wire harness from inside the control panel to the inside of the machine.

Frequently Asked Questions (FAQ)

●Technology/design

Q Can you design and manufacture the product even if we don't have any drawings?
A Yes, it is possible. We can also perform "reverse engineering" by receiving equipment layout diagrams, wiring diagrams, or even the actual equipment.
Q Can you propose harnesses for use in harsh environments (high temperature, oil, moving parts, etc.)?
A Yes, it's possible. We select the most suitable wires and components for your application, considering factors such as heat resistance, oil resistance, and high flexibility, and propose a design that takes durability into account.

●Quality/equipment

Q What is the inspection system in place before shipment?
A In addition to conducting a full continuity test, we also perform voltage withstand tests, tensile strength tests, and visual inspections (camera inspection) upon request, and attach inspection reports.
Q Can I use connectors or terminals specified by a particular manufacturer?
A We possess genuine applicators from major domestic and international manufacturers (such as Japan Solderless Terminals, Hirose Electric, TE, Molex, etc.), and can manufacture products using specified materials.

● Delivery time and cost

Q Is it possible to order just one unit (small batch) for prototypes or other purposes?
A Yes, it's possible. We have a system in place to flexibly handle everything from single prototypes to medium and large-scale mass production.
Q This is an urgent matter; what is the shortest possible deadline?
A If the parts are in stock, it can be completed in as little as two months. If you are in a hurry, please contact us by phone first.
Q Can you suggest ways to reduce costs?
A Yes. We actively propose VEC (Vehicle Energy Conversion) solutions while maintaining quality, such as switching to equivalent parts (compatible components) and simplifying processing steps.

● Transactions and Processes

Q Is it okay to request services from people located far away?
A We provide services throughout Japan. We can also conduct meetings using web conferencing systems, ensuring smooth progress regardless of location.
Q Is it possible to have the work done using materials provided by the customer (such as wires and connectors)?
A Yes, it is possible. We also accept contract work that involves processing only the materials provided by the customer.