HC-RFS153BK

The HC-RFS153BK is a 1.5 kW AC brushless rotary servo motor from the MELSERVO J2S series, engineered for demanding industrial motion control applications that require precision, responsiveness, and durability. Distinguished from standard variants by its built-in electromagnetic brake and oil seal, this unit is purpose-built for axes that must hold position under load when power is removed — making it a trusted choice for vertical axes, clamping mechanisms, and robotic joints across a wide range of factory automation settings.

With a 17-bit absolute encoder delivering a resolution equivalent to 131,072 pulses per revolution, the HC-RFS153BK provides exceptionally fine positioning accuracy and eliminates the need for homing routines at startup. Its ultra-low inertia, medium-capacity design means the motor responds rapidly to velocity and position commands, translating into tighter path accuracy, reduced cycle times, and improved throughput on CNC, assembly, and material handling equipment. The 100 × 100 mm flange mount and keyed shaft ensure straightforward integration into new or replacement installations.HC-RFS153BK

Listed as NNB (New Never Been installed), this unit offers end-users the performance of a brand-new component without the long lead times often associated with ordering directly from a distributor. The motor’s IP65 ingress protection rating guards against dust and water jets, supporting reliable operation in real-world shop-floor environments. Compatible servo amplifiers from the MR-J2S line — including the MR-J2S-200B and similar models — are widely available, making this an accessible drop-in solution for maintenance and retrofit projects.

When sourcing surplus or spare industrial automation components, condition and traceability matter. This servo motor has been carefully handled and stored to preserve its factory condition, giving buyers confidence in a part that is ready for immediate installation. Whether you are expanding capacity, replacing a failed unit, or building inventory for a critical production line, this servo motor represents a cost-effective path to restoring or upgrading precision motion control without sacrificing quality or reliability.HC-RFS153BK

Built-in Brake: An integrated electromagnetic brake holds the motor shaft securely when power is off, making it ideal for vertical and load-holding axes.
17-Bit Encoder: The built-in absolute feedback encoder delivers 131,072 pulses-per-revolution resolution for highly accurate and repeatable positioning.
IP65 Protection: The motor is sealed to IP65 standards, protecting internal components from dust ingress and water jets in industrial environments.
Ultra-Low Inertia: The ultra-low inertia rotor design enables fast dynamic response and tight velocity control across demanding motion profiles.
Oil Seal Included: A factory-installed oil seal protects the shaft bearing area, extending service life in environments exposed to lubricants or coolants.