MX93-FF-206U Kollmorgen
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The Kollmorgen MX93-FF-206U is a stepper motor in the MX Hazardous Duty Stepper Motors series. It features a holding torque of 3.88 Newton-meters and a Nema 34 frame. The motor has a rated current per phase of 4.0 Amps DC, a step angle of 1.8 degrees with an accuracy of plus or minus 3.0 percent, and a weight of 5.0 kilograms.
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Product Description:
The MX93-FF-206U is a two-phase stepper motor manufactured by Kollmorgen and belongs to the MX Hazardous Duty Stepper Motors series. The model is rated for use in Class I Division 1 environments, so it can operate where combustible vapors may be present and accurate motion control is still required. Its hazardous-duty design supports positioning service in industrial areas where a standard open motor may not be suitable. With a standard NEMA 34 mounting face, it fits common brackets, and the 200 full steps per revolution make it suitable for open-loop positioning tasks such as metering pumps, valve actuators, and indexing tables in packaging or process equipment.
The motor has a step increment of 1.8°, which works with the 200-step count to provide the basic resolution before any microstepping is applied. The rotor can hold a static load with 3.88 N·m of torque, helping the shaft resist back-driving without an auxiliary brake. Each phase draws 4.0 A DC at standstill, and the winding resistance is 0.90 Ω. The phase inductance of 13 mH affects how quickly current rises in the coil and how fast torque builds during each step. This electrical combination also influences drive response during rapid indexing and repeated start-stop motion. Step accuracy is rated at ±3%, and the low rotor inertia of 0.187 × 10^-3 kg·m² supports fast start-stop cycles.
The shaft can accept an axial thrust of 222 N and a radial side load of 111 N without exceeding bearing limits, supporting leadscrews or pulley drives mounted directly on the motor. Heat leaves the housing through the flange, and the mounted thermal resistance is 2.1 °C/W, which helps when evaluating enclosure airflow and mounting conditions. A solid mounting surface also improves heat transfer from the motor flange to the machine frame during repeated duty cycles. Electrical insulation withstands up to 340 Vdc and maintains 100 MΩ resistance during high-potential testing. The unit weighs 5.0 kg, which supports rigid installation without additional supports.
Frequently Asked Questions about MX93-FF-206U:
Q: What is the holding torque of the MX93-FF-206U stepper motor?
A: The MX93-FF-206U stepper motor has a holding torque of 3.88 N·m.
Q: What is the rated current per phase for the MX93-FF-206U?
A: This model features a rated current per phase of 4.0 A DC.
Q: What step angle does the MX93-FF-206U stepper motor offer?
A: The step angle for the MX93-FF-206U is 1.8°, resulting in 200 full steps per revolution.
Q: What is the maximum axial shaft load the MX93-FF-206U can handle?
A: This motor can support a maximum axial shaft load of 222 N.
Q: What NEMA frame size does the MX93-FF-206U stepper motor use?
A: The MX93-FF-206U uses a NEMA 34 frame size.
