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AW86HS Series — NEMA 34 Hybrid Stepper Motor
The AW86HS series is Apexwell's largest standard hybrid stepper motor platform, built on a NEMA 34 (86mm) frame with holding torque scaling from 2.7 N·m to 11 N·m across six body lengths. This is the top of our stepper motor range — for applications needing more torque than a stepper can deliver at any frame size, see our BLDC gearmotor series instead.
Shared Specifications (all models)
| Parameter | Value |
|---|---|
| Step Angle | 1.8° |
| Step Accuracy | ±5% |
| Wiring Options | 4-wire or 6-wire |
| Insulation Class | Class B (130°C) |
| Temperature Rise | 50K Max |
| Ambient Temperature | -20°C to +50°C |
| Insulation Resistance | ≥100 MΩ (500 VDC) |
| Dielectric Strength | 500 VAC, 1 minute |
Model Comparison
| Model | Body Length | Phase Current | Phase Resistance | Phase Inductance | Holding Torque | Rotor Inertia | Mass |
|---|---|---|---|---|---|---|---|
| AW86HSA68-4004A | 68 mm | 4.0 A | 0.63 Ω | 3.2 mH | 2.7 N·m | 1,574 g·cm² | 1.85 kg |
| AW86HSA80-5004A | 80 mm | 5.0 A | 0.38 Ω | 3.5 mH | 4.5 N·m | 2,120 g·cm² | 2.50 kg |
| AW86HSA98-6004A | 98 mm | 6.0 A | 0.5 Ω | 5.0 mH | 5.2 N·m | 3,110 g·cm² | 3.10 kg |
| AW86HSA118-6004A | 118 mm | 6.0 A | 0.6 Ω | 6.8 mH | 8.5 N·m | 3,970 g·cm² | 3.75 kg |
| AW86HSA128-5004A | 128 mm | 5.0 A | 0.6 Ω | 7.0 mH | 9.0 N·m | 4,540 g·cm² | 4.25 kg |
| AW86HSA158-6004A | 158 mm | 6.0 A | 0.73 Ω | 8.0 mH | 11.0 N·m | 5,820 g·cm² | 5.20 kg |
Typical Applications
With torque up to 11 N·m, the AW86HS series fits heavy-duty CNC and gantry axes, large-format 3D printers, industrial indexing tables, and robotics base joints where NEMA 23 or NEMA 24 don't have sufficient torque and a geared solution adds unwanted backlash.
Why Choose the AW86HS Series
Six body lengths on one NEMA 34 mounting interface give a 4x torque range (2.7–11 N·m) without changing the mechanical footprint, in either 4-wire or 6-wire configurations. At this torque level, an undetected stall carries real cost — see our article on why closed loop stepper motors are replacing traditional steppers, or go straight to our AW86HS closed loop series, which shares this same motor platform with encoder feedback built in.
We can customize the electrical parameters of the motor and geometric dimensions such as the motor output shaft size according to customer requirements. Accessories including pulleys, eccentric gearboxes, planetary gearboxes and encoders can also be added. For more products and detailed specifications, please download the product catalog from the Download Center.
