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HP281(20mm)- 1.8° per step, 2 Phase
I.CH
Nema 11 Stepping Motor
NEMA 11 Planetary Gear Stepper Motor (HP281), high torque, precise positioning & compact design—ideal for ventilators, medical equipment, and small automation devices needing low speed. Features 3.71–369 gear ratio (adapts to diverse speed-torque demands), 1.8° step angle, and 66%–90% efficiency. Customizable shafts, encoders, and connectors available. Trusted manufacturer delivering tailored, durable solutions.
| Motor Electrical Specification | |||||||||
| Series Model | Step Angle ( o ) | L (mm) | Rated Current (A) | Phase Resistance (Ω) | Phase Inductance (mH) | Holding Torque (N.cm) | Detent Torque (N.cm) | Lead Wire (NO.) | Motor Weight ( g) |
| HP281-00506 | 1.8 | 28 | 0.6 | 4.2 | 2.2 | 4.5 | 0.3 | 4 | 105 |
| HP281-00606 | 1.8 | 33 | 0.6 | 5.5 | 3.2 | 6.0 | 0.4 | 4 | 110 |
| HP281-00806 | 1.8 | 41 | 0.6 | 7.0 | 6.0 | 8.0 | 0.5 | 4 | 140 |
| Other Motor Electrical Specification please refer to Hybrid Stepper Motor web | |||||||||
| Gearbox Specification | ||||||||||||
| Ratio | 3.71 | 5.18 | 14 | 19 | 27 | 51 | 71 | 100 | 139 | 189 | 264 | 369 |
| Reducer Series | 1 | 2 | 3 | 4 | ||||||||
| Length (mm) | 31.0 | 40.1 | 49.0 | 57.9 | ||||||||
| Allowable Torque (Kg.cm) | 12 | 20 | 32 | 40 | ||||||||
| Instantaneous Torque (Kg.cm) | 36 | 60 | 96 | 120 | ||||||||
| Efficiency (%) | 90% | 81% | 73% | 66% | ||||||||
| Weight (g) | 60 | 85 | 95 | 110 | ||||||||
| We can manufacture products according to customer’s requirements | ||||||||||||
NEMA 11 Planetary Gear Stepper Motor (HP281), high torque, precise positioning & compact design—ideal for ventilators, medical equipment, and small automation devices needing low speed. Features 3.71–369 gear ratio (adapts to diverse speed-torque demands), 1.8° step angle, and 66%–90% efficiency. Customizable shafts, encoders, and connectors available. Trusted manufacturer delivering tailored, durable solutions.
| Motor Electrical Specification | |||||||||
| Series Model | Step Angle ( o ) | L (mm) | Rated Current (A) | Phase Resistance (Ω) | Phase Inductance (mH) | Holding Torque (N.cm) | Detent Torque (N.cm) | Lead Wire (NO.) | Motor Weight ( g) |
| HP281-00506 | 1.8 | 28 | 0.6 | 4.2 | 2.2 | 4.5 | 0.3 | 4 | 105 |
| HP281-00606 | 1.8 | 33 | 0.6 | 5.5 | 3.2 | 6.0 | 0.4 | 4 | 110 |
| HP281-00806 | 1.8 | 41 | 0.6 | 7.0 | 6.0 | 8.0 | 0.5 | 4 | 140 |
| Other Motor Electrical Specification please refer to Hybrid Stepper Motor web | |||||||||
| Gearbox Specification | ||||||||||||
| Ratio | 3.71 | 5.18 | 14 | 19 | 27 | 51 | 71 | 100 | 139 | 189 | 264 | 369 |
| Reducer Series | 1 | 2 | 3 | 4 | ||||||||
| Length (mm) | 31.0 | 40.1 | 49.0 | 57.9 | ||||||||
| Allowable Torque (Kg.cm) | 12 | 20 | 32 | 40 | ||||||||
| Instantaneous Torque (Kg.cm) | 36 | 60 | 96 | 120 | ||||||||
| Efficiency (%) | 90% | 81% | 73% | 66% | ||||||||
| Weight (g) | 60 | 85 | 95 | 110 | ||||||||
| We can manufacture products according to customer’s requirements | ||||||||||||
