• 3 phase, NEMA34 frame size
• 126 mm long
• 2.3 A phase current
• 6.78 N.m holding torque
• 14 mm shaft size
• Built with high quality materials.High precision, low motor heating, and low vibration。
The 86J12126-623 is a three-phase open-loop stepper motor rated at 6.78 N.m of holding torque while drawing only 2.3 A per phase. The low current winding makes it a strong candidate where the available drive current is limited or where minimizing energy draw per axis is a design goal.
A 2.3 A winding that still produces over 6 N.m indicates a well-optimized magnetic circuit. Less current means less resistive heating, so the motor stays cooler and its performance remains consistent during long shifts. Three-phase excitation further smooths torque, giving low vibration and quiet running.
The 14 mm shaft couples to standard payloads. The NEMA34 flange provides a rigid mount. As an open-loop motor, it needs no feedback, so control is simply a matter of supplying step and direction pulses from a compatible 3-phase drive.
Its balance of torque and low current draw fits Compact CNC Equipment, Packaging Machinery, Factory Automation, Compact Robotic Mechanisms, Textile Machinery, Printing Machinery, and Food Processing.
Pair with a 3-phase drive output at or above 2.3 A. The low-current design helps keep overall cabinet heating down while still delivering solid torque for industrial indexing and handling tasks.
| Model | 86J12126-623 |
| Phase | 3 |
| Step Angle（deg） | 1.2 |
| Holding Torque(N·m) | 6.78 |
| Rated Current（A） | 2.3 |
| Phase Resistance(ohm) | 9 |
| Phase Inductance（mH） | 39 |
| Detent Torque（mN·m） | 3000 |
| Rotor inertia（g·cm²） | 3500 |
| Insulation Class | B |
| Number of Leads | 6 |
| Weight（kg） | 4 |
| Length（mm） | 126 |
| Matched Drive | 3DM3422 |
| Frame Size（NEMA） | 34 |
| Shaft Diameter（mm） | 14 |
| Frame Size(mm) | 86 |
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