BL-80E-20 Okuma
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The Okuma BL-80E-20 is a BL-ACT servomotor belonging to the BL Servo Motors series and weighs 68 pounds. It features a continuous duty rating, an output power of 1.5 kW, and a speed of 2000 rpm. The servomotor operates at 154 volts and 7.5 amps and delivers a torque of 73 kg-cm.
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Product Description:
The BL-80E-20 is a brushless rotary actuator from Okuma’s BL Servo Motors series. Designed for integration into CNC machining centers and automated tool changers, the motor provides closed-loop speed and position control that helps maintain machining accuracy and feed consistency. By pairing standardized feedback devices with the BL family’s drive amplifiers, the motor supports orderly cabinet wiring while meeting the response requirements of high-precision industrial axes. Its flange and shaft dimensions follow the mechanical outline common to the BL range, so it fits machine layouts intended for that platform.
In electrical terms, the stator windings are energized from a bus of 154 V DC that the matching amplifier derives from the facility mains. Under nominal load, the phase conductors draw approximately 7.5 A, a current level that balances thermal rise with torque production. That energy translates to a mechanical output of 1.5 kW, which is sufficient to drive slide tables, rotary indexers, or auxiliary spindles in mid-sized machines. The rotor reaches 2000 rpm at rated speed, giving feed drives adequate surface speed without imposing excessive bearing wear. Because the BL-80E-20 is specified as a BL-ACT Servomotor, the internal resolver and Hall pattern match the commutation scheme expected by Okuma VAC amplifiers for smooth low-speed operation.
For axis groups that encounter heavy tool loads, the motor delivers up to 73 kg-cm of continuous shaft torque, allowing linear ball screws to accelerate sizable tables without stalling. Its Continuous duty classification indicates that this torque and thermal profile can be maintained during ongoing operation when cooling air is available. The housing mass of 68 lb adds damping and also serves as a heat sink that helps stabilize winding temperature during prolonged cycles. By following the mechanical and electrical conventions established by Okuma, the motor remains compatible with the control and mounting framework used in matching machine assemblies.
Frequently Asked Questions about BL-80E-20:
Q: What is the output power rating of the BL-80E-20 motor?
A: The BL-80E-20 servomotor provides an output power of 1.5 kW, suitable for medium-demand applications.
Q: What is the rated speed of the BL-80E-20 servomotor?
A: This motor operates at a rated speed of 2000 rpm for continuous duty cycles.
Q: What voltage is needed to operate the BL-80E-20 motor?
A: The BL-80E-20 requires a nominal supply voltage of 154 V during operation.
Q: How much torque does the BL-80E-20 servomotor generate?
A: The BL-80E-20 produces a torque of 73 kg-cm under normal conditions.
Q: What type of duty cycle does the BL-80E-20 servomotor support?
A: This servomotor is designed for continuous duty operation, ensuring sustained performance in extended-use environments.
