GRMOT's two-phase brake-equipped stepper motors feature high torque, low noise and precise positioning, combining the advantages of permanent magnet and variable reluctance technologies. The matching stepper motor drivers support microstepping control and strong anti-interference performance, and are compatible with pulse signal speed regulation. Working in synergy, the motor-driver combinations are widely used in industrial scenarios such as 3D printing, numerical control (NC) equipment and automated production lines, ensuring efficient and stable operation of the equipment.
GRMOT's two-phase brake-equipped stepper motors feature high torque, low noise and precise positioning, combining the advantages of permanent magnet and variable reluctance technologies. The matching stepper motor drivers support microstepping control and strong anti-interference performance, and are compatible with pulse signal speed regulation. Working in synergy, the motor-driver combinations are widely used in industrial scenarios such as 3D printing, numerical control (NC) equipment and automated production lines, ensuring efficient and stable operation of the equipment.
Open loop stepper motor product series models and parameters:
NEMA 11 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR28HB30 | 11 | 30 | 0.06 | 5 | 24 | 0.7 | 2 | 4 | DM422 |
| GR28HB50 | 11 | 50 | 0.1 | 5 | 24 | 0.67 | 2 | 4 | DM422 |
NEMA 14 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR35HB33 | 14 | 33 | 0.11 | 5 | 21 | 0.8 | 2 | 4 | DM422 |
| GR35HB51 | 14 | 51 | 0.35 | 5 | 21 | 1.2 | 2 | 4 | DM422 |
NEMA 17 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR42HB40 | 17 | 40 | 0.4 | 5 | 24 | 0.8 | 2 | 4 | DM422 |
| GR42HB48 | 17 | 48 | 0.48 | 5 | 24 | 2.5 | 2 | 4 | DM422 |
| GR42HB60 | 17 | 60 | 0.7 | 5 | 24 | 1.7 | 2 | 4 | DM542 |
NEMA 23 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR57HB56 | 23 | 56 | 1.2 | 8 | 21 | 3 | 2 | 4 | DM542 |
| GR57HB76 | 23 | 76 | 2.3 | 8 | 21 | 5 | 2 | 4 | DM542 |
| GR57HB80 | 23 | 80 | 2.4 | 8 | 21 | 5 | 2 | 4 | DM542 |
| GR57HB80-30 | 23 | 80 | 2.4 | 8 | 21 | 5 | 2 | 4 | DM542 |
| GR57HB100 | 23 | 100 | 2.8 | 8 | 30 | 5 | 2 | 4 | DM542 |
| GR57HB112 | 23 | 112 | 3 | 8 | 30 | 5 | 2 | 4 | DM542 |
NEMA 24 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR60HB86 | 24 | 86 | 3 | 8 | 21 | 5 | 2 | 4 | DM542 |
| GR60HB86-30 | 24 | 86 | 3 | 8 | 30 | 5 | 2 | 4 | DM542 |
NEMA 34 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR86HB80 | 34 | 80 | 4.5 | 14 | 32 | 6 | 2 | 4 | DM860 |
| GR86HB118 | 34 | 118 | 8.5 | 14 | 32 | 6 | 2 | 4 | DM860 |
| GR86HB156 | 34 | 156 | 12 | 14 | 32 | 6 | 2 | 4 | DM860 |
Open loop stepper motor product series models and parameters:
NEMA 11 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR28HB30 | 11 | 30 | 0.06 | 5 | 24 | 0.7 | 2 | 4 | DM422 |
| GR28HB50 | 11 | 50 | 0.1 | 5 | 24 | 0.67 | 2 | 4 | DM422 |
NEMA 14 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR35HB33 | 14 | 33 | 0.11 | 5 | 21 | 0.8 | 2 | 4 | DM422 |
| GR35HB51 | 14 | 51 | 0.35 | 5 | 21 | 1.2 | 2 | 4 | DM422 |
NEMA 17 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR42HB40 | 17 | 40 | 0.4 | 5 | 24 | 0.8 | 2 | 4 | DM422 |
| GR42HB48 | 17 | 48 | 0.48 | 5 | 24 | 2.5 | 2 | 4 | DM422 |
| GR42HB60 | 17 | 60 | 0.7 | 5 | 24 | 1.7 | 2 | 4 | DM542 |
NEMA 23 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR57HB56 | 23 | 56 | 1.2 | 8 | 21 | 3 | 2 | 4 | DM542 |
| GR57HB76 | 23 | 76 | 2.3 | 8 | 21 | 5 | 2 | 4 | DM542 |
| GR57HB80 | 23 | 80 | 2.4 | 8 | 21 | 5 | 2 | 4 | DM542 |
| GR57HB80-30 | 23 | 80 | 2.4 | 8 | 21 | 5 | 2 | 4 | DM542 |
| GR57HB100 | 23 | 100 | 2.8 | 8 | 30 | 5 | 2 | 4 | DM542 |
| GR57HB112 | 23 | 112 | 3 | 8 | 30 | 5 | 2 | 4 | DM542 |
NEMA 24 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR60HB86 | 24 | 86 | 3 | 8 | 21 | 5 | 2 | 4 | DM542 |
| GR60HB86-30 | 24 | 86 | 3 | 8 | 30 | 5 | 2 | 4 | DM542 |
NEMA 34 Open Loop Stepper Motors
| Model | Frame Size (NEMA) | Length (mm) | Holding Torque (N.m) | Shaft Diameter (mm) | Shaft Length (mm) | Phase Current (A) | Phase Number | Lead Wires | Match driver |
| GR86HB80 | 34 | 80 | 4.5 | 14 | 32 | 6 | 2 | 4 | DM860 |
| GR86HB118 | 34 | 118 | 8.5 | 14 | 32 | 6 | 2 | 4 | DM860 |
| GR86HB156 | 34 | 156 | 12 | 14 | 32 | 6 | 2 | 4 | DM860 |
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