Rail Transit Industry Solutions
Railway sensor and control cables, high-reliability.

Rail Transit
Introduction
Rail transportation systems require reliable electrical connections that can withstand vibration, temperature changes and long operating cycles. SAOJIE TECHNOLOGY provides custom cable assemblies and wire harnesses for high-speed rail, subway systems, railway equipment and onboard control systems.
Our rail cable solutions can be configured for signal transmission, sensor connections, control systems and electrical equipment.
Key Applications
High-speed rail
Subway systems
Railway vehicles
Railway signaling equipment
Train control systems
Railway monitoring systems
Passenger information systems
Cable & Harness Solutions
Railway sensor cables
Railway detector cables
Train control harnesses
Signal transmission cables
IP67 cable assemblies
High-temperature cable assemblies
Anti-vibration wire harnesses
Designed for Rail Applications
Railway cable assemblies may need to address vibration, temperature variation, UV exposure, moisture and mechanical movement. Cable and connector selection should therefore be based on the specific installation environment and system requirements.
Where Automotive Cables Are Used
Typical use cases we cover for Automotive customers — tell us yours and we will engineer for it.
OBD Diagnostics
OBD-II breakout, adapter and diagnostic cables for scan tools and telematics.
In-Vehicle Networking
WiFi, USB and Ethernet cables for head units, hotspots and dashcams.
ADAS & Sensors
Camera, radar and LiDAR interconnect harnesses with EMI shielding.
Infotainment
Display, audio and antenna cables for infotainment clusters.
Popular Automotive Cable Solutions
Selected assemblies from this line — click through for full specifications.

Vehicle Wire Harness (OBD / WiFi / Sensors)
OBD, in-vehicle WiFi, e-scooter controller and ADAS harnesses, -40~125°C.
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USB-C Fast-Charging Cable for Vehicles
USB-C fast-charging leads for in-car power and data, PD 3.0 ready, up to 100 W.
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High-Voltage Harness (HVIL)
EV battery and charging harness with HVIL interlock, fully shielded.
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E-Bike / E-Scooter Controller Harness
Controller, battery, motor and display harnesses with waterproof connectors.
View Product →Standards & Specifications
Every automotive harness is built and tested around these baseline parameters — tell us your target values and we will engineer to them.
| Parameter | Typical Range / Option |
|---|---|
| Operating Temperature | -40°C ~ +125°C (engine bay), -40°C ~ +85°C (cabin) |
| Voltage Rating | 12V / 24V vehicle systems; 400-800V for high-voltage harness |
| Protection Rating | IP67 / IP69K waterproof, oil & chemical resistant |
| Core Materials | Tinned copper; XLPE, TPE, PVC jacket; aluminum foil + braid shielding |
| Connectors | Molex, JST, TE, YAZAKI, Delphi/APTIV, AMP, M8/M12, custom tooling |
| Standards | ISO 9001, IATF 16949-ready, RoHS, REACH, USCAR-2 crimp quality |
| Testing | 100% continuity & hi-pot, salt spray, vibration, thermal shock, pull force |
Frequently Asked Questions
Quick answers on ordering automotive cable assemblies from SAOJIE.
Can you make automotive harnesses to our drawings or samples?
Yes. We build from your drawing, BOM or a physical sample — from prototype batches of around 50 units to full production runs, with APQP/PPAP documentation available on request for OEM programs.
Do you support low-volume or pre-production runs?
Absolutely. We keep flexible MOQs for automotive customers, typically 50-200 pcs for prototypes and ramping orders, so you can validate tooling and quality before committing to volume.
What about high-voltage EV harnesses?
Our HV line covers 400-800V platforms with HVIL interlock, orange outer jacket, fully shielded conductors and laser-marked labels, each piece tested to 100% hi-pot and insulation resistance before packing.
Explore Other Industries
From 5G to medical — see how we support other sectors with custom connectivity.
Medical & Diagnostic EquipmentMonitoring, diagnostic and surgical device interconnects
Industrial Automation, Robotics & PLCRobotics, servo motors, PLC cabinets, automation lines
EV, Energy Storage & SolarEV charging, energy storage, photovoltaic systems
Rail TransitRailway sensor and control cables, high-reliability.
Automotive & ADASOBD, vehicle WiFi, sensors, ADAS and infotainment.
Aerospace & DefenseHigh-reliability, lightweight interconnect systems.
Consumer Electronics & 3CSmartphones, PCs, TVs, wearables and 3C accessories.
Security & SurveillanceHD video transmission and monitoring system cables.
Communication & Telecom5G, base stations, routers and broadband equipment.
Need a Cable Built for the Automotive Industry?
Send us your drawings or a sample — our engineers respond within 24 hours.
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