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AW86HS Series — NEMA 34 Stepper Motor with Hollow Shaft
The AW86HS series is Apexwell's NEMA 34 (86mm) hybrid stepper motor line built around a through-bore hollow shaft, letting cables, optical fibers, pneumatic lines, or a pass-through mechanism run directly through the rotor axis instead of routing around the motor. Across six body lengths from 68mm to 158mm, holding torque scales from 2.7 N·m to 11.0 N·m, making this the highest-torque frame size in Apexwell's hollow-shaft stepper lineup.
Shared Specifications (all models)
| Parameter | Value |
|---|---|
| Step Angle | 1.8° |
| Step Accuracy | ±5% |
| Lead Wires | 4 (bipolar) |
| Shaft Type | Through-bore hollow shaft |
| 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 | 0.50 Ω | 5.0 mH | 5.2 N·m | 3,110 g·cm² | 3.10 kg |
| AW86HSA118-6004A | 118 mm | 6.0 A | 0.60 Ω | 6.8 mH | 8.5 N·m | 3,970 g·cm² | 3.50 kg |
| AW86HSA128-5004A | 128 mm | 5.0 A | 0.60 Ω | 7.0 mH | 9.0 N·m | 4,540 g·cm² | 3.90 kg |
| AW86HSA158-6004A | 158 mm | 6.0 A | 0.73 Ω | 8.5 mH | 11.0 N·m | 5,820 g·cm² | 4.20 kg |
Unlike the AW42HS/AW57HS/AW60HS hollow-shaft lines, the AW86HS ships as 4-wire bipolar only.
Typical Applications
With a through-bore hollow shaft and torque up to 11.0 N·m, the AW86HS series fits large industrial rotary tables and turntables needing cable or slip-ring-free pass-through, heavy robotic base joints, large-format winding and coiling machinery, and cable-management-sensitive rotary equipment where the torque and frame size of smaller hollow-shaft lines aren't enough.
Why Choose the AW86HS Series
A hollow shaft removes the need for a separate cable pass-through mechanism or slip ring — wiring, fiber, or a secondary shaft can run straight through the motor's rotational axis, simplifying the mechanical design around it, which matters most at this frame's industrial torque levels where routing cable externally is hardest to manage cleanly. Six body lengths let a product line scale holding torque roughly 4x (2.7–11.0 N·m) on the same mounting footprint, with two current ratings (5.0A and 6.0A) available at several body lengths to independently tune torque and current draw. Custom shaft bore diameter and connector configurations are available on request.
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.
