NEMA 34 Stepper Motor 4.5 N·m 4.2A per Phase (86HZ80-45)
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Prices updated: 13 Oct 2026
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About this product
A NEMA 34 (86 mm frame) stepper motor with 4.5 N·m holding torque and 4.2 A per phase, suited to CNC routers, engraving machines and heavy linear axes. It requires a stepper driver rated for this phase current.
Specifications
- Frame size
- NEMA 34 (86 mm)
- Holding torque
- 4.5 N·m
- Current per phase
- 4.2 A
- Model
- 86HZ80-45
Frequently asked questions
What stepper driver do I need?
Use a stepper driver that supports up to 4.2 A per phase, with a supply voltage suited to the driver and motor. A driver rated below this current will not deliver the motor's rated torque safely.
How do I wire the four leads?
A bipolar stepper has two coils. Connect one coil's two wires to A+ and A- on the driver, and the other coil's two wires to B+ and B- . Identify coil pairs with a multimeter by finding the two leads that show continuity.
