Yaskawa SGLTW-20A170A
SGLT Series
Note: Values when the linear motor is combined with the SGDH Sigma II amplifier. 1 These values are with aluminum heatsink (170A: 254x254x25mm, 320A/460A : 400x500x40mm) mounted to the motor coil. 2 These values are with aluminum heatsink (609x762x50mm) mounted to the motor coil.
Lifecycle & replacement
Yaskawa's published discontinuation lists (checked 2026-09-01) do not assign a lifecycle status to this part number.
Servo amplifiers, motors, encoders and cables are matched sets. If this part is no longer available in its original form, the manufacturer's newer generation usually will not pair with the rest of the axis, so an upgrade normally covers the drive, motor and cables together. Send us the nameplate details and we will confirm availability of an exact spare or scope a compatible upgrade.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Checked against: Yaskawa America Support By Product - Inverter Drives; Yaskawa America Support By Product - Servo Amplifiers; Yaskawa America Support By Product - Servomotors; Yaskawa America Support By Product - Machine Controllers; Yaskawa America Support By Product - PLC Controllers; Yaskawa America Support By Product - Spindle Drives; Yaskawa America Support By Product - Spindle Motors; Yaskawa product page carrying the verbatim definition of Legacy.
Technical specifications
Ratings
| Continuous Output (W) | 325 |
| Continuous Force (N) | 130 |
| Continuous Current (A RMS) | 2.3 |
| Peak Force (N) | 380 |
| Peak Current (A RMS) | 7.7 |
| Moving Coil Mass (kg) | 2.6 |
| Force Constant (N/A RMS) | 61.0 |
| BEMF Constant (V/(m/s)) | 20.3 |
| Motor Constant (N/√W) | 18.7 |
| Electrical Time Constant (ms) | 5.9 |
| Mechanical Time Constant (ms) | 7.5 |
| Thermal Resistance (with Heatsink) (K/W) | 1.01 |
| Thermal Resistance (without Heatsink) (K/W) | 1.82 |
| Magnetic Attraction Force (N) | 0 |
Specifications
| Duty Rating | Continuous |
| Insulation Resistance: | 500VDC, 10MΩ minimum |
| Motor Type: | Sinusoidally commutated permanent magnet brushless linear motor |
| Ambient Temperature: | 0 to 40ºC |
| Ambient Humidity | 20 to 80% (non-condensing) |
| Cooling Method | Self/forced air |
| Allowable Winding Temperature | 130ºC (Class B) |
| Insulation Dielectric Voltage | 1500V AC 1 min |
Documentation & CAD
Files hosted by Yaskawa; links open the official document or download page. 3D CAD requires a free Yaskawa login.
Datasheets & catalogs
Manuals
- Holding Brake Wiring Warning
- Sigma-7 with 200V Input Peripheral Device Selection Manual
- Sigma-7 Servo Systems Technical Supplement
- Sigma-5 User Manual: Setup for Linear Motors
- Sigma-5 User Manual: Design and Maintenance - Linear Motors - Analog Voltage and Pulse Train Reference
- Sigma-5 User Manual: Design and Maintenance - Linear Motors - MECHATROLINK-II Communications Reference
- Sigma-5 User Manual: Design and Maintenance - Linear Motors MECHATROLINK-III Communications Reference
- Sigma-5 User Manual: Design and Maintenance - Linear Motors - Option Command Reference
- Sigma-7 Linear Servomotor Product Manual
- Linear Servomotor with 400 V-Input Power Product Manual
- Linear Sigma Series Instructions For Magnetic Way, Notes for Safe Operation
- AC Servomotor Linear (Sigma) Series SAFETY Precautions
- + 6 more on the official site
2D drawings
Certificates
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs Yaskawa parts — new, refurbished, or exchange units with warranty.
Specifications compiled from official Yaskawa product documentation. Always confirm against the datasheet for your exact unit and revision.