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AW60HS Series — NEMA 24 Stepper Motor with Precision Planetary Gearbox & Brake
The AW60HS series pairs Apexwell's NEMA 24 (60mm), 1.8° hybrid stepper motor with an HPS60 precision planetary gearbox and an integrated holding brake in one assembly, combining ≤15 arcmin backlash with a locked shaft when power is removed. Motor holding torque scales from 1.25 N·m to 2.8 N·m across four body lengths, gearbox output torque reaches up to 32 N·m, and each model is available in either 4-wire (bipolar) or 6-wire (center-tap) configuration. The gearbox and brake are shared with the AW57HS precision gearbox & brake series.
Shared Specifications (all models)
| Parameter | Value |
|---|---|
| Step Angle | 1.8° |
| Step Accuracy | ±5% |
| Lead Wire Configuration | 4-wire (bipolar) or 6-wire (center-tap) |
| Gear Material | Metal |
| Backlash (no load) | ≤15 arcmin |
| Noise | ≤55 dB |
| Brake Type | Spring-applied holding brake |
| 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 |
Motor Model Comparison
| Model | Body Length | Phase Current | Phase Resistance | Phase Inductance | Holding Torque | Rotor Inertia | Mass |
|---|---|---|---|---|---|---|---|
| AW60HS56-4204A | 56 mm | 4.2 A | 0.40 Ω | 1.6 mH | 1.25 N·m | 478 g·cm² | 0.58 kg |
| AW60HS65-2804A | 65 mm | 2.8 A | 0.95 Ω | 2.5 mH | 1.40 N·m | 590 g·cm² | 0.58 kg |
| AW60HS88-4204A | 88 mm | 4.2 A | 0.85 Ω | 2.8 mH | 2.50 N·m | 987 g·cm² | 1.40 kg |
| AW60HS100-4204A | 100 mm | 4.2 A | 0.80 Ω | 3.0 mH | 2.80 N·m | 1,163 g·cm² | 1.60 kg |
HPS60 Precision Planetary Gearbox Specifications
| Parameter | 1-Stage | 2-Stage |
|---|---|---|
| Reduction Ratio | 3, 4, 5, 7, 10 | 16, 20, 25, 28, 35, 40, 50, 70, 100 |
| Gearbox Length (L1) | 57 mm | 73 mm |
| Rated Output Torque | 10–28 N·m | 10–32 N·m |
| Transmission Efficiency | 96% | 94% |
| Weight | 750 g | 960 g |
Momentary torque moment is rated at two times the rated allowable load across both stages. 15 reduction ratios are available in total (3 to 100:1) — identical to the AW57HS gearbox, since both series share the same HPS60 platform.
Brake Specifications
| Parameter | Value |
|---|---|
| Static Friction Torque | 2.0 N·m |
| Rated Voltage | DC 24V ±10% |
| Rated Power | 11.5 W |
| Max Speed | 5,000 rpm |
| Weight (brake unit) | 0.4 kg |
The brake holds the motor shaft when de-energized and releases when 24VDC is applied, independent of the motor phase windings and the gearbox — identical brake specifications to the AW57HS.
Wiring
Each AW60HS motor is available in either 4-wire (bipolar) or 6-wire (center-tap) configuration, so it can drop into either a bipolar or unipolar driver setup without a different motor SKU. The brake coil is wired and powered separately.
Typical Applications
With ≤15 arcmin backlash, gearbox torque up to 32 N·m, and a holding brake that locks the shaft on power loss, the AW60HS series fits vertical (Z-axis) industrial drives, robotic base joints that must hold position accurately without drifting, precision CNC and index tables, and other applications where the AW57HS's torque range fits but the driving application calls for a higher-current motor stack.
Why Choose the AW60HS Precision Gearbox & Brake Series
Combining a precision planetary gearbox with an integrated brake in one assembly saves the space and integration work of stacking a separate gearbox and brake unit, while still delivering ≤15 arcmin backlash and a shaft that locks whenever the motor is de-energized. Because both the gearbox and brake are shared with the AW57HS, a design can move between the two motor frames without changing gearbox or brake specifications. For applications needing only the gearbox or only the brake, Apexwell's separate precision-gearbox and brake series on the same frame offer lower-cost alternatives. Custom shaft configurations and encoder feedback 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.
