Dongguan Longyi Tuohai Cable Co., Ltd., a sales branch of Longzhiyi Cable, specializes in cross-border sales. Rooted in Dongguan, a renowned manufacturing hub, we provide high-quality cable products and one-stop cross-border procurement services to clients worldwide.
Founded in 2005, Longzhiyi Cable is a high-tech enterprise and a "Specialized, Refined, Distinctive, and Innovative" (SRDI) SME integrating R&D, design, production, sales and service. We specialize in delivering one-stop solutions for high-end industrial cables and matching plug connectors. Through over two decades of continuous efforts and innovation, we own and operate a full-industry-chain intelligent manufacturing park covering over 30,000 square meters, with complete capabilities from plastic compound modification and copper processing to cable extrusion and wire harness assembly. This enables full-process quality control from raw materials to finished products, and our innovative strength and unwavering quality commitment have earned widespread trust from customers.
Our product portfolio includes industrial cables, connector wire harnesses, high-speed drag chain cables, control cables, power cables, sensor cables, fan cables and power cords. These products are widely applied in robotics, automation equipment, new energy vehicles, CNC lathes, wind power equipment, smart homes, and medical, aesthetic and healthcare devices. Selected models are certified to UL/CE/CB; full certification list available by product.
Longzhiyi Cable — Immersive Factory Tour
Longzhiyi Cables - From raw material modification, copper processing, cable extrusion, harness assembly to high-precision reliability laboratory, a full-process self-controlled industrial cable, harness and connector system service provider.
Covering four major business sectors: cables, wire harnesses, copper materials, and polymer new materials. We support non-standard customization based on drawings, specifications, and physical samples, providing highly stable physical interfaces for intelligent control, industrial automation, new energy, medical and heavy equipment.
From PVC compound modification, copper processing, cable extrusion to harness assembly, full-link integrated manufacturing
Integrated production from raw materials to finished products
Full-range testing including high and low temperature, bending, drag chain, high voltage, combustion, salt spray, etc., with ultra-high customized process standards
Precision testing equipment covers all processes
Drawings, specifications, and physical samples are all acceptable, with rapid prototyping and mass production transition
One-on-one follow-up by professional engineering team
From materials to finished products, from design to delivery, the four divisions work together to provide overseas customers with a complete integrated connection solution.
We supply self-developed and self-manufactured industrial cables, covering high-flex drag chains, industrial robots, new energy, medical special, sensing, flat transmission, industrial bus and high-end customization, etc. Conductors and sheath materials can be customized according to working conditions, focusing on R&D and manufacturing of high-reliability industrial cables.
Providing complete wire harness solutions for industrial automation, machine tools, new energy and medical equipment, covering medical gas-electric hybrid harnesses, servo industrial harnesses, sensor drag chain harnesses, new energy high-voltage harnesses, bus pre-assembled harnesses, aviation connector harnesses and high-end customized harnesses, supporting customization and delivery of various non-standard complete wire harnesses.
Focus on the manufacturing of T1 electrolytic pure copper wire and tinned copper wire, with wire diameters ranging from 0.05mm to 0.20mm and copper purity ≥ 99.95%, using seamless continuous casting and drawing process, widely suitable for enameled wire, electronic wire, high-end wire harness and other conductor processing needs, ensuring electrical conductivity and quality stability from the source.
Focus on R&D and production of PVC modified materials for wires and cables, covering multiple categories of insulation grade and sheath grade, supporting customized formula development, integrating formula design and cable extrusion process technology, products comply with RoHS/REACH standards, providing stable, compliant and customizable material solutions for cable manufacturing.
The old site has accumulated 50000+ SKUs in stock. The product system of the four divisions is complete, supporting mixed order complete sets delivery and sample application.
Commonly used cables for automation, servo power cables, drag chain cables, encoder cables, sensor cables and special high-temperature resistant cables.
Complete wire harness assemblies for robots, CNC machine tools, AGVs, and new energy equipment, supporting BOM complete set identification and sub-packaging.
Full-chain self-management and control from copper wire drawing to finished product delivery, strictly implementing international quality standards, products have passed a number of mainstream certifications, providing reliable and compliant industrial connection products for global customers.
Self-built copper wire drawing capacity, fully independent production of conductor raw materials, controlling conductivity and quality stability from the source, not only supporting the entire chain of cable manufacturing, but also supplying in bulk externally, ensuring delivery time and cost advantages.
Targeted R&D of materials around cable application scenarios, focusing on PVC modification and special insulating sheath material optimization, customizable formulas for high temperature, oil resistance, low smoke halogen-free and other working conditions, providing underlying support for product performance.
Drawings, specifications, and physical samples can be connected, rapid prototyping, DFM review, mass production transition, one-on-one engineering follow-up throughout the process.
High-flexibility drag chain shielded cable with oil-resistant sheath and 90%+ shielding for reliable motion, power and signal transmission.
Request detailsStrictly adhering to international and industry-specific standards and technical specifications across industries, we provide highly stable physical interfaces for intelligent control, active transmission, and heavy-duty equipment.
We provide high-flex drag-chain cables and hybrid connectors for six-axis collaborative robots, CNC machine tools, and automated production lines, supporting high-frequency bending, anti-vibration, and compact-space installation.
Get Solution →We offer servo power cables, encoder cables, and Profinet bus cables to ensure precise transmission of high-frequency pulse signals, meeting the low-latency and high-anti-interference demands of Industry 4.0 production lines.
Get Solution →For photovoltaic power stations, lithium battery production lines, and new energy vehicles, we provide high-voltage connectors and high-current carrying cables with temperature and weather resistance, meeting fast-charging and liquid-cooling heat dissipation needs.
Get Solution →Class II medical device cables (patient monitors, hyaluronic acid injectors, etc.), customizable to pass biocompatibility testing, with anti-yellowing sheaths.
Get Solution →We provide M8/M12 sensor high-flex drag-chain harness assemblies, resistant to motor and variable frequency drive interference, preventing false triggers, suitable for frequent bending and reciprocating motion.
Get Solution →We offer premium custom cables for non-standard extreme conditions such as high temperature, corrosion, and sterile environments, supporting full-line delivery for major engineering projects including overseas power and rail transit.
Get Solution →More than just manufacturing — a reliable delivery partner covering the entire chain from materials and processes to testing.
Deeply rooted in industrial cable and harness manufacturing, serving 80+ countries and regions
Vertically integrated self-manufacturing of cables, wiring harnesses, copper wire, and rubber/plastic compounds.
100% continuity, withstand voltage, and other tests to ensure zero defects per batch
One-on-one engineer support with 7×24 rapid response
From requirements communication to mass production delivery, six standardized stages ensure consistency between samples and mass-produced products.
Drawings, physical samples, or spec sheets — all accepted for parameter confirmation
Engineering team manufacturability analysis and material selection optimization
Full laboratory testing; failed samples are reworked and iterated immediately
Output production drawings, confirm all process parameters
Using confirmed sample solutions, ensuring stable lead times
FOB / CIF / DDP, with full global logistics tracking
Send us drawings, spec sheets, or physical samples — our engineers will complete technical review and quotation within 7×24 hours.
We have independently built a high-standard reliability laboratory. From raw materials to finished products, every step undergoes precise testing to ensure stable and consistent export quality.
Equipped with combustion test chambers, drag-chain testers, temperature/humidity chambers, salt spray cabinets and other professional equipment, covering mechanical, electrical, and environmental verification across four categories.
From stranding, extrusion to cabling, quality inspection checkpoints are set throughout the process. Key processes monitor parameters in real time to ensure stable performance of every meter of cable.
Every batch of finished products undergoes comprehensive testing including continuity, insulation, dielectric strength, and tensile tests. Non-conforming products are reworked directly to ensure delivered quality.
We follow ISO systems and CCC / UL / CE and other international standards. We can supplement certifications for target markets as required by customers, helping facilitate customs clearance.
Full-process quality system certification
Essential for domestic market access
Authoritative safety certification for the North American market
Meets EU market access requirements
Environmental compliance for export to the EU
Compliant with EU chemicals regulations
Protection of core processes and innovative technologies
Specialized, refined, distinctive, and innovative enterprise
Comprehensive verification of key reliability indicators for industrial cables, harnesses, and connectors.
Equipped with conductor resistance testers, high-insulation resistance measuring instruments, dielectric strength testers, continuity testers, DC micro-resistance testers, etc., to comprehensively verify electrical safety and conductivity performance.
Using precision four-wire cable testers and power cord testers to accurately detect various electrical parameters of wires, ensuring every batch meets specification requirements.
Cable flex testers, tensile testing machines, flexible cable drag-chain bending testers, bending test machines, wire wrapping/torsion testers, etc., to simulate real working conditions and verify mechanical durability.
Temperature chambers, constant temperature and humidity chambers, salt spray testers, oil resistance testers and other equipment to verify cable reliability under extreme temperature, humidity, and corrosive environments.
Precision calipers, projectors, online diameter measuring instruments and other precise measuring tools to strictly control conductor diameter, insulation thickness, and dimensional tolerances.
Integrating electrical, mechanical, environmental, and dimensional testing capabilities, we can independently complete full-item performance testing of cables, ensuring stable and reliable product quality.
Frequently Asked Questions about OEM / ODM customization, certifications, lead time, and trade terms — everything you need to know at a glance.
Yes, fully. Under OEM, customers provide complete drawings, specification parameters, and samples for us to manufacture to specifications. Under ODM, customers provide functional requirements and we participate in structural design, material selection, and prototype validation — offering full-process service from requirements to mass production. Drawings, specification sheets, or physical samples are all acceptable.
For regular projects, technical review is completed within 24 hours. Standard material samples can be delivered as fast as about 7 days; special materials or projects requiring tooling take about 1–4 weeks. The actual lead time depends on the project review result.
We support sample prototyping with MOQ of 3,000 meters of cable / 1,000 harnesses, as well as custom packaging. Production MOQ is negotiated per project. Both loose goods and custom packaging are available, flexibly adapting to every stage from R&D prototyping to mass supply.
We currently hold ISO 9001, CCC, UL, CE, RoHS, REACH and other systems and certifications, with multiple technical patents and specialized & innovative enterprise qualifications. We can supplement corresponding certifications according to the customer's country and project requirements. Specific certifications depend on the target market.
Please submit your project requirements through the "Get a Custom Quote" form on the homepage. We recommend providing product drawings, electrical parameters (voltage/current/temperature/conductor specification), application environment, quantity, and delivery requirements. An engineer will provide a one-on-one quote.
We support various trade terms such as FOB, CIF, DDP, as well as wire transfer and other payment methods. Specific terms are determined through negotiation per project, backed by global logistics tracking services.
Industry Application Cases
Strictly comply with international and industry-specific standards and technical specifications of various industries to provide highly stable physical interfaces for automated equipment.
Our company provides dedicated cables for industrial robots. With ultra-high flexibility, resistance to repeated torsion and bending as well as wear and tear, the cables can withstand long-time non-stop motion of robots. Boasting high customizability and long service life, they are widely applied to multi-joint robots and gantry manipulators to guarantee stable operation of robot motion control systems.
Our company provides special cables for 3C automation equipment. With high flexibility to endure high-speed reciprocating bending, compact size and stable signal transmission, the cables can resist oil and dust in workshop environments. Available in customized specifications, they are widely used in automatic assembly and inspection equipment for mobile phones and computers to ensure reliable operation of 3C production lines.
Our company provides dedicated wiring harnesses for industrial sensors. The harnesses realize stable signal transmission and strong anti-interference capacity, with wear resistance and high & low temperature tolerance to adapt to complex field working conditions. The length and connectors can be customized as required. They are widely used for signal acquisition of various industrial sensors to ensure reliable on-site signal collection and transmission.
Our company provides special cables for servo systems. Characterized by low capacitance, strong anti-electromagnetic interference and bending resistance, the cables realize accurate power and signal transmission for high-speed motion control scenarios. Customizable and highly stable, they are widely matched with various servo motors and drivers to ensure precise control of motion systems.
Our company supplies special drag chain cables for machine tools. The cables resist high-speed reciprocating movement in drag chains, corrosion from cutting fluid, abrasion and oil, and maintain stable signal transmission against electromagnetic interference in workshops. With long service life, they are widely applied to CNC lathes and machining centers to support long-time precision machining.
Our company provides special communication cables for Industrial Ethernet. Featuring high transmission bandwidth, low signal attenuation and strong anti-electromagnetic interference, the cables resist bending and temperature variation in industrial environments to deliver high-speed stable communication. Customizable with various connectors, they are widely used in industrial field buses and equipment networking to ensure stable data transmission of industrial networks.
Our company supplies special cables for new energy battery equipment. Featuring bending resistance, electrolyte corrosion resistance and high temperature resistance, the products deliver strong anti-interference performance and adapt to high-speed continuous operation of battery production lines. Highly customizable with reliable stability, they are widely used in coating, winding and assembly equipment of lithium battery production lines to ensure continuous and dependable manufacturing.
Our company offers special cables for semiconductor equipment. The products feature low outgassing, clean non-precipitation and low signal interference, together with high and low temperature resistance to adapt to the strict environment of clean rooms. With high precision and customizable options, they are widely used in wafer fabrication, packaging and testing equipment to ensure stable power and signal transmission for precision semiconductor machinery.
Our company supplies special cables for engraving machines. Resistant to high-speed reciprocating bending in drag chains, abrasion and oil, the cables maintain stable signal transmission without pulse loss to support long-time continuous processing of engraving machines. Durable and easy to install, they are widely used in stone, wood and metal engraving equipment to guarantee machining precision and continuous operation.
Our company supplies special cables for woodworking machines. Wear-resistant and dust-proof, the cables withstand repeated bending in drag chains and friction from wood chips as well as oil contamination, adapting to harsh workshop environments. With long service life, they are used in wood cutting machines, edge banders and other woodworking equipment to ensure stable operation of automated woodworking machinery.
Industry News
Industry News
Industry News
Global Service Commitment
Our cable solutions are adaptable to climates and policies around the world, providing full-cycle implementation support, and efficiently matching localized needs in various countries with Chinese technology.
