MX112-FF-401U Kollmorgen
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The Kollmorgen MX112-FF-401U is a stepper motor in the MX Hazardous Duty Stepper Motors series. It features a holding torque of 1390 oz-in, a rated current of 2.7 Amps DC, and a step angle of 1.8 degrees with 200 full steps per revolution. The motor supports a maximum axial force of 50 pounds and weighs 18 pounds.
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Product Description:
The MX112-FF-401U is a stepper motor produced by Kollmorgen within the MX Hazardous Duty Stepper Motors series. This motor is intended for motion axes that must meet hazardous-location codes while still delivering the discrete positioning characteristic of a hybrid stepper design. By converting pulse and direction signals from a drive into incremental rotation, it provides open-loop positioning for valves, mixers, or metering pumps installed in classified industrial environments. Its sealed construction and wiring conduit entries simplify compliance with explosion-proof installation rules.
The motor has two phases, advancing in 200 full steps per revolution, and each increment corresponds to a 1.8° step, while cumulative positioning error is limited to ±5% so repeatability remains suitable for index tables. Two field windings arranged in 1–2 sequence establish the required electromagnetic pattern. The phase circuit presents 2.5 mH of inductance and a 0.64 Ω resistance, and it draws a rated winding current of 2.7 A DC. At standstill, the laminated rotor can sustain a holding torque of 1390 oz-in, allowing the shaft to hold moderate mechanical loads without external brakes. Drive electronics may be connected to ungrounded power networks because the insulation system withstands 340 VDC and maintains 100 MΩ resistance when tested at ambient temperature.
Mechanical design parameters describe the load the unit can absorb without degrading bearing life. The shaft can endure an axial thrust of 50 lb (222 N) and a radial side load of 25 lb (111 N) at the specified coupling point. Rotational acceleration is influenced by a rotor inertia of 0.114 oz-in-s², so moderate motion profiles can be executed without overshoot when paired with a microstepping drive. Thermal modeling indicates 1.8 °C per watt of power loss across the housing, and the overall assembly weighs 18 lb (8.2 kg), which must be supported by the mounting structure.
Frequently Asked Questions about MX112-FF-401U:
Q: What is the maximum axial force supported by the MX112-FF-401U stepper motor?
A: The MX112-FF-401U can withstand an axial force of up to 50 lb (222 N) during operation.
Q: How many full steps per revolution does the MX112-FF-401U offer?
A: This motor provides 200 full steps per revolution for precise motion control.
Q: What is the holding torque of the MX112-FF-401U stepper motor?
A: The holding torque of the MX112-FF-401U is 1390 oz-in (9.82 Nm), ensuring strong position retention when stationary.
Q: What is the rated current for the MX112-FF-401U?
A: The rated current for this stepper motor is 2.7 Amps DC.
Q: What is the insulation resistance of the MX112-FF-401U motor?
A: The insulation resistance of the MX112-FF-401U is 100 Megohms, which helps in ensuring electrical safety and durability.
