- Permanent & Disc Magnet Stepper Motors
20M020D - Tin Can Permanent Magnet Stepper Motor
Tin Can Permanent Magnet Stepper Motor
The 20M020D provides up to 1.55 oz-in (10.95 mNm) of holding torque in a 20 mm frame size. The neodymium magnets provide high power density for applications that need moderate torque in a small package. It is available in 5 or 12 volt windings, and in unipolar or bipolar designs. Mclennan holds stock of various configurations in the UK for immediate delivery. For technical assistance and details of value added assemblies, including gearboxes and wiring / connector options please contact our sales and applications support team.. .
Motor Highlights
- Excellent open loop control - no encoder necessary
- Digitally controlled - easy to use with a micro processor
- Cost effective - compact design, lower integration cost
- Maintenance free - no brushes that can wear out
- Available with both unipolar and bipolar winding
Customization Available
- Coil modifications - adjust resistance and inductance
- Custom shafts - flats , knurling, diameter, length
- Pinions and gears
- Special mounting flanges
- Wiring - connectors, lead length, shrink tubing
- Ball bearings, clutch magnets, dampers
- Magnets - to yield higher torque or reduced detent levels
Applications
- Clinical Diagnostics Using Motion Technology
- Valve Actuation
Pharmaceutical dispensing
Robotics
Antenna positioning
Printers and copiers
Switching systems
| Winding unit | 20M020D1B | 20M020D1U | 20M020D2B | 20M020D2U |
|---|---|---|---|---|
| Diameter in | 0.79 | 0.79 | 0.79 | 0.79 |
| Diameter mm | 20 | 20 | 20 | 20 |
| Operating Voltage V | 5 | 5 | 12 | 12 |
| Resistance per Phase, ± 10% Ohms | 20.0 | 20.0 | 115.2 | 115.2 |
| Inductance per Phase, typ mH | 7.8 | 3.9 | 52.8 | 20.3 |
| Rated Current per Phase A | 0.25 | 0.25 | 0.10 | 0.10 |
| Holding Torque, Min oz-in | 1.6 | 1.1 | 1.6 | 1.1 |
| Detent Torque, Max mNm | 3.5 | 3.5 | 3.5 | 3.5 |
| Detent Torque, Max oz-in | 0.5 | 0.5 | 0.5 | 0.5 |
| Rotor Inertia gcm² | 0.41 | 0.41 | 0.41 | 0.41 |
| Rotor Inertia oz-in² | 0.002 | 0.002 | 0.002 | 0.002 |
| Step Angle degree | 18 | 18 | 18 | 18 |
| Absolute accuracy 2 ph. On, Full step mode degree | +/- 1.5 | +/- 1.5 | +/- 1.5 | +/- 1.5 |
| Steps per Revolution | 20 | 20 | 20 | 20 |
| Ambient working temperature range C | -20 to +70 | -20 to +70 | -20 to +70 | -20 to +70 |
| Ambient working temperature range F | -4 to +158 | -4 to +158 | -4 to +158 | -4 to +158 |
| Maximum Coil Temperature °C | 130 | 130 | 130 | 130 |
| Maximum Coil Temperature °F | 266 | 266 | 266 | 266 |
| Bearing Type | Sintered Bronze Sleeve | Sintered Bronze Sleeve | Sintered Bronze Sleeve | Sintered Bronze Sleeve |
| Insulation Resistance at 500 VDC Mohms | 100 | 100 | 100 | 100 |
| Dielectric Withstanding Voltage VAC | 450 for 2 seconds | 450 for 2 seconds | 450 for 2 seconds | 450 for 2 seconds |
| Weight g | 23.5 | 23.5 | 23.5 | 23.5 |
| Weight oz | 0.8 | 0.8 | 0.8 | 0.8 |
| Leadwire | AWG 28, UL 1429 | AWG 28, UL 1429 | AWG 28, UL 1429 | AWG 28, UL 1429 |
Datasheets
