DH082A-23-1210 Kollmorgen
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The Kollmorgen DH082A-23-1210 is part of the DDR Direct Drive Motors series and features a continuous torque of 28.7 Newton-meters with a peak torque of 104 Newton-meters. This flange mount motor has a single bearing design, a straight thru bore shaft with face coupling, and a motor frame size of 8.60 inches outer diameter. The resolver feedback device provides a resolution of over 196,000 counts per revolution, and the unit weighs 21.5 kilograms.
Internal Product Review
The DH082A-23-1210 is a Kollmorgen DDR direct drive motor with 28.7 N-m continuous torque and 500 rpm maximum operating speed. Flange mounting and a straight thru bore with face coupling support clean mechanical integration in precision rotary axes. Resolver feedback with 196,608 counts/rev resolution makes the motor an excellent choice for accurate servo positioning.
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Product Description:
The DH082A-23-1210 is a frameless permanent-magnet direct-drive motor produced by Kollmorgen within the DDR Direct Drive Motors series. As a rotary actuator, it mounts directly to machine shafts, eliminating belts or gearboxes and providing closed-loop speed and position control for indexing tables, winding stations, and robotic joints. Its electromagnetic stack is optimized for mains-powered servo systems, where high torque at low speed simplifies the mechanical design.
The motor delivers a continuous torque of 28.7 N·m, while short bursts can reach 104 N·m, providing additional capacity for acceleration events. Rated output remains linear up to 500 rpm, a speed ceiling suited to the direct coupling of moderate-diameter loads. Dynamic response benefits from the rotor inertia of 0.0194 kg·m². The housing has an 8.60-inch outer diameter, allowing it to fit through standard bearing blocks. A flange-mount face transmits force without external brackets, and the straight through-bore with face coupling simplifies shaft alignment. The 400/480 VAC winding connects to drives using the series’ symmetrical three-phase pattern. This standard winding includes resolver feedback and removes the need for step-down transformers. Internal support relies on a single-bearing design that centers the rotor without adding axial stack length.
For high-precision indexing, the embedded A-winding resolver supplies 196,608 counts per revolution of drive-interpreted resolution and maintains ±6.6 arcseconds of repeatability. This feedback supports an overall system accuracy of ±140 arcseconds when installation errors are controlled. The stator face is machined to withstand axial compression loads of up to 3,360 kg, so the motor can carry turntable bearings or thrust collars directly. A 90-degree rotatable connector eases cable routing in tight enclosures, and the unit weighs 21.5 kg, making it suitable for overhead or robotic-arm mounting. Because the motor is not sealed, it should be protected from coolant spray and airborne contaminants.
