65mm Inner Height Series

Heavy-Duty CNC Cable Carrier 65mm Series – Bridge Open Type

High-Strength Dynamic Cable Protection for Long-Travel CNC Systems

When large-scale machinery and long-stroke motion systems operate with dense cable bundles, choosing a high-rigidity cnc cable carrier is essential to prevent structural sagging and joint fatigue. The 65mm series bridge-type cable drag chain is engineered as a heavy-duty dynamic cable protection system. Positioned within our heavy-duty tier alongside 55mm models, the 65mm series provides maximum cross-sectional load support before step-up requirements into extra heavy-duty 80mm and 100mm systems.

Featuring a 65mm internal clearance height and versatile **internal widths ranging from 50mm to 300mm**, this reinforced polymer cable chain effortlessly houses thick power lines, flexible pneumatic hoses, and high-pressure hydraulic conduit up to 58.5mm outer diameter. Functioning as a high-performance energy chain for demanding industrial machinery, it maintains superior linear tracking and anti-sagging stability across long unsupported spans over 5 to 8 meters.

Engineered for Long Travel: 30% Glass-Fiber PA66 Reinforced Nylon

Standard plastic cable carriers can bend, twist, or sag under heavy dynamic loads. Our heavy-duty cnc cable carrier components are precision injection-molded from **PA66 nylon reinforced with 30% glass fiber**, delivering outstanding structural performance over basic plastic alternatives:

Maximum Rigidness & Anti-Sagging Stability: Glass-fiber reinforcement increases tensile and flexural strength, allowing the energy chain to resist snaking and sagging across extended travel strokes.
High Dynamic Flex Fatigue Life: Exceptional impact resistance guarantees continuous operation exceeding 10 million bending cycles under standard factory operating conditions.
Superior Joint Durability: High surface hardness minimizes friction at connection pins, maintaining precise pin-to-hole tolerances over years of high-speed motion.
Broad Operating Temperature Range: Operates smoothly from -40°C up to +130°C without becoming brittle in cold environments or deforming under processing heat.
Chemical & Coolant Resistance: Highly resistant to cutting fluids, synthetic lubricants, oils, and mild industrial chemicals without swelling or degradation.
Quiet & Safe Operation: Rated UL94 V-2 for flame retardancy, with natural acoustic damping that keeps running noise strictly below 60dB.

Bridge Open Architecture Advantages

The bridge open configuration features snap-open crossbars along both top and bottom sides, easily opened using a standard flathead screwdriver:

Fast & Easy Cable Laying: Pre-assembled cable harnesses can be laid directly into the cable guide channel without thread-pulling, drastically lowering installation and maintenance labor.
Optimized Thermal Ventilation: Maximizes ambient air circulation around thick power cables, effectively dissipating heat generated inside the energy chain during continuous operation.
Lightweight Drive Efficiency: Weighs only about one-third as much as conventional steel cable carriers, reducing drive motor strain and enabling faster machine acceleration rates.

65mm Series Size Chart

Item No	Internal Dimensions (H x W) mm	External Dimensions (H x W) mm	Bending Radius (R) mm	Pitch mm	Chain Links per Meter pcs	Opening Principle	Max Cable Diameter mm
YDLRB6550	65X50	85X82	R100 R125 R150 R200 R250 R300	80.5	13	bridge type	58.5
YDLRB6560	65X60	85X92
YDLRB6575	65X75	85X107
YDLRB6590	65X90	85X122
YDLRB65100	65X100	85X132
YDLRB65117	65X117	85X150
YDLRB65125	65X125	85X157
YDLRB65150	65X150	85X182
YDLRB65175	65X175	85X207
YDLRB65200	65X200	85X232
YDLRB65250	65X250	85X282
YDLRB65300	65X300	85X332

Note: Popular bending radii choices for the 65mm series include R150, R200, and R250. For inner widths exceeding 150mm, selecting R200 or larger is recommended for optimal load motion control.

Primary Applications

This heavy-duty cnc cable carrier series is purpose-built for demanding industrial automation setups, including large CNC gantry mills, long-stroke plasma/laser cutting platforms, heavy CNC lathes, robot transfer units (7th-axis RTUs), and long-travel warehouse shuttle tracks.

Enclosed Protection Option

Operating in harsh environments exposed to flying hot metal swarf or direct high-pressure coolant spray? Explore our fully enclosed energy chain variant: