Which torque should I pick?

Match holding torque to the load and speed you need. 4.5 N·m suits light axes, 8.5 N·m is a common middle choice for routers, and 12 N·m is for heavy gantries or high-load arms. Higher torque motors are longer and heavier, which affects mounting.

Do I need the driver and power supply?

If you already have an HB860C-compatible driver and a supply rated for 6 A per motor, buy the motor alone. The drive and motor kits add the HB860C driver, and the motor kits also add a 400W supply per axis.

What voltage does the HB860C driver take?

AC 18–80V or DC 24–110V. Higher supply voltage generally gives better torque at speed, but stay within the driver's rating and check your supply can deliver the motor's 6 A.

Is this motor closed-loop?

No. These are open-loop motors without encoders. They hold position well under normal load but cannot detect or correct missed steps, so size them with margin or choose a closed-loop system if stall detection matters.

What shaft size and wiring do the motors use?

All three models have a 14mm shaft with a key, four leads, and a 1.8° step angle. Pulleys, couplings and mounts need to match the 14mm keyed shaft and the 86mm flange.

Can I run several axes from one kit?

Yes. The 3- and 5-axis kits include one motor, one HB860C driver and one 400W supply per axis, plus a breakout card in the 3-axis motor card option. Each axis needs its own driver and supply.

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1-5 Axis Nema34 Stepper Motor Drive Power Kit 4.5/8.5/12NM 86mm 2PH 6A 14mm Shaft Motor for CNC Router Single Axis Robotic Arm

Q: Where is the 1-5 Axis Nema34 Stepper Motor Drive Power Kit 4.5/8.5/12NM 86mm 2PH 6A 14mm Shaft Motor for CNC Router Single Axis Robotic Arm cheapest?

At Amazon, for $372.99, as of our latest check.

Q: Where can I buy the 1-5 Axis Nema34 Stepper Motor Drive Power Kit 4.5/8.5/12NM 86mm 2PH 6A 14mm Shaft Motor for CNC Router Single Axis Robotic Arm?

2 stores we checked sell it, including Walmart, Amazon.

Best price now

$372.99at AmazonChecked Nov 12

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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About the 1-5 Axis Nema34 Stepper Motor Drive Power Kit 4.5/8.5/12NM 86mm 2PH 6A 14mm Shaft Motor for CNC Router Single Axis Robotic Arm

This is a Nema34 open-loop stepper motor with an 86 mm flange, sold alone or as a drive kit for CNC routers, single-axis setups and robotic arms. The motors have no encoder. They are 2-phase, with a 1.8° step angle, 4 leads and a 14 mm keyed shaft. Holding torque comes in 4.5 N.m, 8.5 N.m and 12 N.m versions, and all three are rated at 6 A.

The kit options add one HB860C driver per motor. The driver accepts AC 18V-80V or DC 24V-110V and offers 400-51200 steps per turn. Larger kits also add a 400W S-400-60 power supply with a 60V DC output for each motor. The power supply is fan cooled, with slight operating noise.

Motor type

Nema34 86 mm flange, 2-phase open-loop stepper motor, no encoder

Step angle

1.8°

Leads

Shaft

14 mm diameter, keyed

Current

6 A (all models)

86HS8060A4J14

4.5 N.m holding torque, 80 mm body length, phase resistance 0.75, phase inductance 5.6 mH, detent torque 4 N.cm, rotor inertia 1.05 g.cm²

86HS11860A4J14