Stepper Motor Drives
Industrial 2-phase NEMA 34 (86mm) hybrid stepper motor delivering 85 kg-cm (8.5 Nm) holding torque with 6.0A current rating and 14mm keyed drive shaft for heavy CNC axes.
- check_circle 85 kg-cm (8.5 N·m) holding torque: Easily drives heavy gantry bridges through deep wood and stone cuts.
- check_circle Standard NEMA 34 frame (86 × 86 mm): Drops directly into universal CNC motor mounts and reduction gearboxes.
- check_circle 14mm keyed drive shaft: Slip-free mechanical locking for helical pinion gears and timing pulleys.
- check_circle Low electrical inductance: Enables rapid current rise times for sustained high-speed torque.
- check_circle Class B thermal insulation: Safe continuous operation in ambient workshop temperatures exceeding 40°C.
- check_circle 1.8° precision step angle: Provides high positional repeatability across all CNC vector cuts.
- check_circle 4-Lead bipolar connection: Simple wiring into any standard 6A-8A industrial stepper motor driver.
Target Applications & Use Cases
Industrial Applications FitPrimary drive motor on dual-motor Y-axis and heavy X-axis carriage assemblies.
Drives heavy bridges through marble, granite, and sandstone slab cutting.
High-acceleration linear travel for clean, dross-free bevel and sheet cutting.
Direct or geared indexing for round table legs, pillars, and 3D sculptures.
Engineering & Production Benefits
Key Operational AdvantagesMassive magnetic holding torque prevents positional drift during aggressive plunge cuts.
Oversized front bearing withstands constant side thrust from helical gear racks.
Precision balanced rotor and dust-sealed construction ensure years of shop reliability.
Standard NEMA 34 bolt pattern allows instant replacement of worn factory motors.
Spare Part Overview & Technical Description
High-Torque NEMA 34 (85 kg-cm) Stepper Motor
The MSUN 86BHH150-600-42J is an industrial-grade NEMA 34 2-phase hybrid stepper motor engineered specifically for driving high-load gantry axes on CNC wood routers, stone carving machines, and plasma cutting beds. Delivering a massive 85 kg-cm (8.5 N·m / 1200 oz-in) holding torque, this motor produces the muscle required to accelerate heavy cast-iron or steel gantry bridges without missing steps or exhibiting low-speed cogging.
Constructed with premium high-silicon stator laminations, pure electrolytic copper windings, and high-energy rare-earth permanent magnets, the 86BHH150 exhibits low internal inductance and low electrical resistance. This allows motor drivers to force current through the coils rapidly, sustaining high holding torque even as rotational speeds climb. A heavy-duty 14mm output shaft with standard keyway ensures slip-free coupling to helical pinion gears or precision planetary reduction gearboxes.
Mechanical & Electrical Specifications:
- Step Angle Precision: Standard 1.8° full step angle with ±5% non-accumulative step accuracy.
- Shaft Configuration: 14mm precision-ground cylindrical shaft with machined keyway to prevent pinion slippage.
- Thermal Insulation: Class B insulation system withstands coil operating temperatures up to 130°C.
- Heavy-Duty Bearings: Preloaded sealed deep-groove ball bearings easily absorb helical gear radial thrust.
Full Specifications Sheet
| Specification | Parameter / Value |
|---|---|
| Minimum Order Quantity | 1 Piece |
| NEMA Frame Size | NEMA 34 (86mm) |
| Holding Torque | 85 kg-cm |
| Motor Type | Stepper |
| Input Phase | Single Phase |
| Brand | MSUN |
| Usage/Application | CNC |
| Model Name/Number | 86BHH150-600-42J |
| Frequency | 50 Hz |
| Country of Origin | Made in India |
| Material | MS |
| Part Number | JX20210224 |
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