RKL4509 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4509 is part of the RKL Motor Power Cables series and features a cable diameter of 25.5 millimeters, with a power conductor cross-section of 4 by 16.0 square millimeters. This cable uses a matte, low-adhesion PUR outer jacket that is orange, and offers hydrolysis resistance, total shielding, and a maximum conductor temperature of 80 degrees Celsius.
Internal Product Review
The RKL4509 is a durable motor power cable from Bosch Rexroth Indramat, featuring a robust PUR outer jacket and total shield for reliable performance in demanding environments. Halogen-free and hydrolysis-resistant construction ensures safety and longevity even under repeated bending, rated at 5 million cycles. This model stands out for its excellent flexibility and industrial-grade resilience.
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Product Description:
The RKL4509 motor power cable is produced by Bosch Rexroth Indramat as part of the RKL Motor Power Cables series. It serves as a dynamic supply link between a drive amplifier and its motor, carrying motor power and auxiliary control signals through complex motion paths in automated assembly lines, gantry loaders, and packaging machines. The cable combines mechanical flexibility with electrical integrity to support stable motor operation in high-cycle industrial automation, including installations that use drag chains or involve torsional movement. Its flexible design accommodates repetitive machine motion while protecting the conductors and control pairs from excessive mechanical stress.
The cable is rated for 5 million flex cycles in continuous-motion cable chains. Its nominal outer diameter of 25.5 mm fits standard chain separators while keeping the internal strand arrangement uniform. Stationary routing requires a minimum bending radius of 5 × D, while dynamic routing requires a minimum bending radius of 7.5 × D to reduce copper work hardening at each articulation. The conductors may reach 80 °C without degrading the insulation, supported by the cross-linked primary sheath. A matte, low-adhesion surface works with the wear-resistant polyurethane jacket to reduce friction against guide channels and resist abrasion during high-speed movement.
The electrical core contains 4 × 16.0 mm² power conductors and two twisted control pairs of 1.5 mm² that share a common drain. An overall shield made from tinned copper braid and aluminum laminate surrounds all elements to limit electromagnetic interference and support compliance with drive EMC requirements. The outer jacket is molded from PUR, a compound that is halogen-free, silicone-free, and resistant to hydrolysis for use in humid or chemically cleaned work cells. The jacket has an orange RAL 2003 finish that improves visibility within machinery and cable routing systems. Its matte surface also helps prevent oil and machining residue from adhering to the cable during operation.
