Selecting a Step Motor - Torque vs. Speed

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Choosing a Step Motor Based on Load, Speed and Torque


	Torque-Speed Curves

	Show me examples

	VXM controller

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	High res (0.9º) motors

At this point, you should have determined:

your payload weight,
linear translation speed range
lead screw pitch

If not, go here

From one of the next two graphs, determine the required minimum torque.

Then choose a motor with sufficient minimum torque out to the maximum step rate necessary to reach you top speed. Recheck the step rate - linear speed table to make sure you achieve the desired top speed.

Show me Lead Screw Pitch vs. Linear Translation Speed Data

Step Motor Torque-Speed Curves

These graphs display step motor torque vs shaft speed for different motors used with VXM controllers to drive UniSlide, BiSlide or XSlide positioning equipment. Note "Steps/Sec." are for 1.8° motors running half-step mode

or 400 steps per revolution. We also have 0.9° motors. They offer twice the resolution at half the speed. Please call for curves of other motors.

Vexta PK245 motor curve
Vexta PK264 curve Vexta PK264 motor