LSM215-451-204-S-2KA Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
MPN: M.1302.1354
The Kollmorgen LSM215-451-204-S-2KA is part of the LSM Brushless Servo Motors series and has a continuous torque of 51 Nm and a peak torque of 158 Nm. This motor features a single turn high resolution feedback type and operates at a rated speed of 2000 rpm. It has a brake voltage of 24 VDC and weighs 41.7 kg with the brake.
Internal Product Review
The LSM215-451-204-S-2KA is a Kollmorgen brushless servo motor that delivers 51 Nm continuous torque and 158 Nm peak torque. Single-turn high-resolution feedback and a 2000 rpm rated speed support precise, stable performance in demanding motion applications. The 460 V class design makes this unit an excellent choice for high-power servo systems.
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Product Description:
The LSM215-451-204-S-2KA is a brushless servo motor built by Kollmorgen within the LSM Brushless Servo Motors series. Intended for industrial automation, it provides rotary actuation for gantries, presses, and indexing tables that require precise torque delivery and dynamic speed control. Its closed-loop design allows a compatible servo drive to regulate the position, velocity, and torque of a machine axis as operating loads change.
The motor delivers a continuous shaft torque of 51 Nm while sustaining a rated rotor speed of 2000 rpm. It has a maximum peak current demand of 106.1 A(pk), so the connected drive, conductors, and protective devices must accommodate the required current. The electromagnetic design provides a torque constant of 1.84 Nm/A, allowing commanded drive current to produce predictable mechanical output. A phase resistance of 0.50 Ω and a phase inductance of 10.0 mH establish the electrical time constants that influence servo bandwidth and current-loop stability. The motor incorporates eight poles to support smooth electronic commutation during speed and position changes. Its back-EMF gradient is 222 V/kRPM, which must be considered when matching the winding to a compatible servo drive. Integrated single-turn, high-resolution feedback provides accurate rotor position information for the closed control loop. Rolling-element bearings support a radial load equivalent to 112 kg at the rated speed. The holding brake operates from a 24 VDC supply and secures the axis when holding force is required.
During rapid indexing, the machine axis can draw on a peak torque of 158 Nm for short intervals, providing the acceleration needed for high cycle rates. The combined rotor and holding-brake inertia is 0.00686 kg·m², and this value should be included when calculating acceleration and deceleration ramps. The complete assembly has a mass of 41.7 kg, which must be considered when selecting the mounting surface and lifting equipment. The winding is insulated for a 460 V supply class, permitting connection to a compatible high-voltage servo drive. An M12 × 1.75 mm shaft thread facilitates the secure attachment of a suitable coupling or other driven component.
