D103M-23-9310-036 Kollmorgen
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The Kollmorgen D103M-23-9310-036 is part of the DDR Direct Drive Motors series and features a continuous torque of 115.3 Newton-meters with a peak torque of 305 Newton-meters. This 3-phase motor runs at an operating voltage of 230 VAC and has a maximum operating speed of 120 rpm. It includes a 90-degree rotatable connector, flange mount option, a sine encoder with a resolution of 2,097,152 counts per revolution, and an outside diameter of 11.19 inches.
Internal Product Review
The D103M-23-9310-036 is a Kollmorgen DDR direct drive motor that delivers an impressive 115.3 N·m continuous torque and 305 N·m peak torque. A sine encoder with 2,097,152 counts/rev supports excellent feedback quality for demanding motion profiles. Flange mounting and a 90° rotatable connector simplify machine integration, making the motor a strong choice for high-precision servo applications.
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Product Description:
The D103M-23-9310-036 is a direct-drive rotary motor manufactured by Kollmorgen within the DDR Direct Drive Motors series. Designed for servo axes that demand high stiffness and zero-backlash positioning, the unit couples directly to the load, so no mechanical transmission is required. This layout minimizes compliance and improves dynamic response in semiconductor tooling, indexing tables, and other precision motion platforms where consistent torque delivery and fine angular accuracy are critical.
The motor is energized from a three-phase supply at 230 VAC and sustains a continuous torque of 115.3 N·m, allowing stable operation under prolonged duty cycles. A sine-wave encoder delivers a feedback resolution of 2,097,152 counts/rev, giving the controller sub-arcsecond interpolation capability. Built-in repeatability of ±0.62 arcsec permits the axis to return to commanded points without additional compensation. Commanded velocity can be increased to 120 rpm for processes that alternate between slow positioning and moderate-speed indexing. The encoder signals leave the housing through a 90-degree rotatable connector, allowing cable routing to accommodate machine envelope constraints. Internally, a long rotor stack increases the magnetic surface area, supporting continuous torque without enlarging the frame. All power phases, feedback leads, and the protective earth ground terminate at the connector to simplify installation.
Mechanical integration is provided by a flange-mounted face that seats directly against a machine frame. The mounting arrangement supports the loads generated when the motor reaches its peak torque of 305 N·m. Overall system accuracy remains within ±26 arcsec, supporting precision contouring and synchronized multi-axis profiles. With an outside diameter of 11.19 in, the housing fits compactly into equipment envelopes while still providing room for the stator windings and thermal paths. The housing material and bearing set help maintain concentricity when the motor operates at its rated temperature under full current load. Direct coupling also removes transmission components that could otherwise introduce backlash, torsional compliance, or additional maintenance requirements. The rigid mounting interface helps preserve alignment between the motor and the driven load during repeated acceleration and deceleration cycles.
