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High-flexibility servo drag chain cables
Specially designed for mobile servo motor systems with drag chains, integrating highly flexible structure and composite function design to ensure stable transmission of power and control signals in cyclic reciprocating curved motion scenarios, adapting to multiple working environments.
1. Dual-structure design to cover diverse needs
▍Power Type (Four-Core Independent Structure)
Core specifications: 4×0.5/0.75/1.0/1.5/2.5/4/6/10/16/25/35mm² (customizable as needed)
Functional positioning: Single-transmission servo power supply, suitable for power connection in conventional automation equipment.
▍Power Control Composite Type (Integrated Stranded Structure)
Innovative combination: 4 power core wires, 1~2 sets of control core wires (stranded into bundles)
Typical specifications: ▫ 4G1.5 2×0.5 | 4G2.5 2×0.75 (Power, single group control) ▫ 4G1.5 2×(2×0.5) | 4G2.5 2×(2×0.5) (Power, dual group control)
Scenario value: Simultaneously completes power supply and control signal transmission, reduces wiring complexity, and is suitable for highly integrated servo systems.
2. Five Major Core Technology Breakthroughs
▍Conductor Technology: Ultra-fine precise stranding, enhanced flexibility
Uses VDE 0295/CLASS Class 6 ultrafine oxygen-free bare copper wire (diameter ≤0.1mm), stranded into bundles, improving conductor flexibility by 40%, and customizable tin-plated copper conductors to enhance oxidation resistance.
▍Insulation Solution: High-Strength Elastomer, Double Protection
Special hybrid elastomer insulation material, dielectric strength ≥20 kV/mm, mechanical tensile strength ≥15 MPa, balancing electrical insulation stability and bending fatigue resistance.
▍Shielding System: Layered Protection, Worry-Free Interference Resistance
Power type: Single-layer tinned copper wire braided shielding (density ≥85%), effectively suppressing electromagnetic interference;
Composite type: Separate shielding of control core wires, overall shielding (divided total shielding structure), crosstalk resistance increased to 95%, ensuring precise control signal transmission.
▍Sheath System: Dual Material Options, Suitable for All Environments
Conventional scenario: Specially modified elastomer sheath, wear resistance coefficient ≥120 mg/1000 cycles, suitable for indoor dry environments;
Harsh scenarios: PUR polyurethane sheath, oil-resistant (no corrosion after 72h diesel immersion), waterproof (IP67), UV-resistant aging, suitable for outdoor/oily/humid environments.
▍Structural Reinforcement: Dual Protective Layer Design, High-Speed Compatibility
The inner sheath uses an armored extrusion process, with a fixed stranded wire structure to prevent loosening; the outer sheath is high-pressure molded, with a surface friction coefficient ≤0.3, supporting high-speed movement (acceleration ≥5 m/s²), and a bending life of up to 10 million cycles.
3. Key Performance Parameters Overview
Project
Base values
Custom Upgrade
Rated voltage
Power core wire 600/1000V, control core wire 250V AC
Higher voltage levels can be customized
Bending radius
Mobile installation 7.5×D, fixed installation 5×D (D = outer diameter)
Minimum can reach 5×D (special process)
Ambient temperature
-60℃ low temperature / -120℃ high temperature customization
Shielding effectiveness
Power type ≥60dB, composite type ≥80dB
Military-grade shielding (≥90dB) optional
System
UL, CSA, etc. customizable
4. Working condition adaptation and selection recommendations
▍Indoor routine operating conditions
Preferred configuration: modified elastomer sheath, single shielded power type
Applicable scenarios: machine tool servo shafts, automatic assembly lines, bending frequency ≤5 times per second.
▍Outdoor Complex Conditions
Preferred configuration: PUR polyurethane sheath with total shielding composite type
Applicable scenarios: port crane servo systems, chemical mixing equipment, requiring resistance to oil, water, and corrosion, with a bending service life of ≥ 8 million cycles.
▍High-speed, high-frequency operating conditions
Preferred configuration: Double-sheath structure, tin-plated copper shielding composite type
Applicable scenarios: collaborative robot joints, high-speed packaging machines, movement speed ≥ 10m/s, acceleration ≥8m/s².
5. Installation and signage guide
▍Core Wire Identification System
Power core wires: black insulation with white numeric coding (1-4), standard configuration with yellow/green dual-color ground wire;
Control core wires: color twisted pairs (such as red/white, blue/white), compliant with DIN 47100 standard, support custom color codes.
▍Installation Operation Points
Do not twist during laying, unwind evenly from the center of the cable reel;
Cable spacing in drag chain ≥ 15% of diameter, use separators for recommended separation;
For high-speed scenarios, cables should be fixed at both ends and the middle of the drag chain, with fixing spacing ≤ 500mm;
Avoid contact with sharp components, bending path should allow ≥ 10% extra length.
Six, Typical Application Scenarios
Industrial robots: six-axis robot drag chain system, supports 360° rotational bending, transmits power and encoder signals;
Intelligent logistics equipment: AGV trolley with servo motor connection, roll-resistant and tow-towing, suitable for 24-hour continuous operation;
New energy equipment: servo roller equipment for lithium battery production lines, resistant to electrolyte corrosion, with a bending life of ≥ 10 million cycles;
High-end machine tools: five-axis machining center servo axis drag chain, with total shielding design ensuring nanometer-level control signal accuracy.
7. Customized service process
Requirement Communication: Clarify the number of cores, voltage, and environmental requirements (temperature / corrosion / movement frequency);
Solution design: Structural drawings and performance parameter tables provided within 24 hours;
Sample testing: 72-hour prototyping, supports bending life, oil resistance, flame retardancy, and other real-world measurements;
Selection Tips
This solution corresponds to servo drive connections for injection molding machines, with wear resistance and tensile strength as the core design indicators, covering a specification range of 2-37 cores. Technical agreements and factory test reports can be provided for bulk purchases.
