[T] - Stepper motor, 200 steps, 20x30mm

Description

This hybrid bipolar stepper motor has two very interesting points:

1. It is really small 30mm long x 20mm side.
2. Light with 60 gr
3. It is a NEMA 8 size motor ... and therefore usable with standard hardware C'est un moteur à la taille NEMA 8... et donc utilisable avec du matériel standard.

Each phase consumes 600mA at 3.9V offering a torque of 0.017N-m (180 gr-cm). The motor is equipped with 4 wires with color coding, black + green connected on a coil, blue + red on the other coil. It's possible to control this motor using H-bridge but we recommend the use of a stepper motor controller (ex: StepStick A4988).

Characteristics

• Size: 20 mm carré × 30 mm (not including the axis, NEMA 8)
• Weight: 60 g
• Axis diameter: 4 mm (D-axis)
• Axis length: 12 mm
• Step per revolution: 200
• Current rating: 600mA per coil
• Voltage rating: 3.9 V
• Resistance: 6.5 Ω per coil
• Holding torque: 1.7 N*cm, 17 N*mm, 0.017 N-m (0.180 Kg*cm = 180 gr*cm)
• Inductance: 1.7 mH per coil
• Wire length: 30 cm (approximately)
• Output axis supported by two ball bearings.
• SOYO motor reference piece number SY20STH30-0604A.
• Data sheet.

To fix ideas concerning the couple:
1 newton-meter is equal to 100 N-cm, or 10.1971621298 kg-cm (the force exerted by a weight of 10Kg at the end of an arm of 1 cm). 

Typical Stepper Motor Applications

Stepper motors are used in many applications where precise positioning is desirable but without having to support the additional cost and complexity of a positioning system by enslavement. Here are some applications where stepper motors intervene:

• Printer
• CNC machine
• Drawing printer
• A Laser cutter
• A "Pick and place" machine
• A linear actuator
• A hard disc