6SM 27M-4.000-G-426 Kollmorgen
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The Kollmorgen 6SM 27M-4.000-G-426 is part of the 6SM Synchronous Servo Motors series and offers a rated power of 0.13 kW with a rated speed of 4000 rpm. This servo motor features an IP65 protection class, a brake holding torque of 1 Nm at 24 VDC, and uses an encoder adapter compatible with ROD426 or ROQ425. The motor has a peak current of 3.5 A and a standstill torque of 0.32 Nm.
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Product Description:
The 6SM 27M-4.000-G-426 is a synchronous servo motor manufactured by Kollmorgen for the 6SM Synchronous Servo Motors series. It provides closed-loop rotary motion for precision axes in automated assembly, light material handling, and indexing equipment. When paired with a compatible encoder and drive, the motor lets controllers modulate velocity and torque while monitoring position, making it suitable for tasks that demand repeatable, high-speed positioning.
At its continuous operating point, the unit outputs 0.13 kW while the shaft maintains a nominal speed of 4000 rpm. The corresponding continuous torque is 0.3 Nm, enough to propel small mechanical loads without overheating. Electrical demand at this rating is 0.75 A per phase, so compact amplifiers can supply it efficiently. The stator winding exhibits an inductance of 21 mH and a resistance of 31 Ω; these values set the current rise time and influence proportional-integral gain settings in the drive. Together, they establish the electrical time constant that governs acceleration and settling times.
During rapid moves, the servo can accept 3.5 A of peak current for short periods, boosting torque to overcome inertia or friction. A permanent-magnet holding brake rated at 1 Nm releases the shaft when its 24 VDC coil is energized and secures it when power is removed, preventing unwanted drift. The housing carries an IP65 sealing grade, blocking dust and low-pressure water jets so the motor can be mounted on exposed machine frames. Additional characteristics include a standstill torque of 0.32 Nm, a torque constant of 0.41 Nm/A, a voltage constant of 25 V per 1000 rpm, and a rotor inertia of 0.08 kg·cm². These values allow system designers to adjust loop gains, match load inertia, and predict thermal behavior during cyclic operation.
Frequently Asked Questions about 6SM 27M-4.000-G-426:
Q: What is the rated torque output of the 6SM 27M-4.000-G-426 servo motor?
A: This model delivers a rated torque of 0.3 Nm during continuous operation.
Q: What level of environmental protection does the 6SM 27M-4.000-G-426 provide?
A: The 6SM 27M-4.000-G-426 features a protection class of IP65, ensuring strong resistance against dust and water ingress.
Q: What is the rated speed of the 6SM 27M-4.000-G-426 motor?
A: This servo motor has a rated speed of 4000 rpm.
Q: What are the brake voltage and holding torque specifications of the 6SM 27M-4.000-G-426?
A: The brake on this model operates at a voltage of 24 VDC and provides a holding torque of 1 Nm.
Q: Which encoder adapters can be used with the 6SM 27M-4.000-G-426 motor?
A: The 6SM 27M-4.000-G-426 is compatible with the ROD426 and ROQ425 encoder adapters.
