RKL0019 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL0019 belongs to the RKL Motor Power Cables series and features a cable structure of 4x1.0 mm² plus 2x(2x0.75 mm²) StC. It has a jacket made of adhesion-free, matt PUR in RAL 2003 orange and can withstand up to 5,000,000 bending cycles. The outer diameter is 12.0 mm, with a dynamic bending radius of 7.5 times the cable diameter and a static bending radius of 5 times the cable diameter.
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Product Description:
The RKL0019 motor power cable is produced by Bosch Rexroth Indramat for the RKL Motor Power Cables series. Intended for dynamic servo-drive connections, it carries phase power and paired control cores in a single flexible jacket, allowing one assembly to be routed instead of separate leads. The cable is used in articulated robots, gantry axes, and pick-and-place stations where continuous motion requires dependable energy delivery through cable tracks and torsion points.
Its rated service life in moving applications is 5,000,000 bending cycles, supported by a stranded conductor layout of 4x1.0 mm² + 2x(2x0.75 mm²)StC. The 1.0 mm² power conductors feed the motor, while the 0.75 mm² control pairs carry temperature or brake signals without requiring a separate harness. Copper resistance is limited to 19.5 Ω/km, minimizing voltage loss over long cable runs. Low-capacitance insulation provides a discharge capacity of 0.6 nF/m, helping the drive maintain clean pulse-width-modulated waveforms. During motion, mechanical stress is kept below the conductor yield point by observing a dynamic bending radius of 7.5 × D, where D represents the cable’s outside diameter. Proper routing also prevents the cable from being pinched or subjected to excessive tension as the connected axis moves.
The PUR (adhesion-free, matte) sheath resists oils and welding splatter, while its high-visibility RAL 2003 (orange) color supports quick tracing in crowded cable trays. The cable has a round profile with an outer diameter of 12.0 mm, allowing it to share energy chains with pneumatic tubing without exceeding typical fill limits. When the machine is stationary, fixed routing points must maintain a static bending radius of 5 × D so the conductor arrangement intended for dynamic service is not compromised. Cable clamps should support the jacket evenly and avoid concentrated pressure that could deform the insulation or restrict movement. Adequate clearance around neighboring lines also reduces abrasion when the cable travels repeatedly through a carrier.
