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SWA/SWB ServoWeld® Integrated Actuators
ServoWeld® SWA & SWB integrated servo spot welding Actuators offer light weight with high performance.
Tolomatic’s ServoWeld family of lighter weight integrated servo motor actuators for resistance spot welding (RSW) provide a cost-effective actuator design and best-in-class performance. SWA/B actuators provide users the lowest lifetime cost (lowest cost per spot weld) by providing the highest quality welds (best force repeatability) combined with the longest lasting actuators. ServoWeld SWA/B integrated servo spot welding actuators are highly efficient, and the broad product family has many choices to optimize weight and performance.
SWA/SWB integrated servo motor actuators offer:
- 20+ million cycles for SWA models and 10+ million cycles for SWB
- Standard roller screw with highest dynamic load rating for more welds over competing roller screws, ball screws or pneumatic actuators
- Skewed motor windings designed for welding minimizes motor cogging for the best force repeatability
- Light-weight actuator design
- Forces to 4,000 lbf (17.8 kN)
- Optional water cooling
Features & Ordering
Download the SWA/SWB Brochure for full details on features
ServoWeld® SWA/SWB Integrated Motor Actuator Features
ServoWeld® SWA/SWB Ordering
Specifications
| Specifications | Units | 3 | 4 |
|---|---|---|---|
| Maximum Stroke | in (mm) | 6 (152) | 12 (305) |
| Maximum Force | lbf (kN) | 2,500 (11.1) | 4,950 (22.0) |
| Maximum Speed | in/sec (mm/sec) | 23 (584) | 23 (584) |
SWA Performance & Mechanical Specifications
| Series | SWA3 or SWB3 | SWA4 or SWB4 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frame Size | mm | 90.0 | 110.0 | |||||||||||
| in | 3.54 | 4.33 | ||||||||||||
| Motor Winding | A3 / B3 | A2 / B2 | A3 / B3 | A4 / B4 | ||||||||||
| Nut/Screw | RN04 | RN05 | RN10 | RN05 | RN10 | RN04 | RN05 | RN05XR | RN10 | RN04 | RN05 | RN05XR | RN10 | |
| § Screw Lead | mm | 4.0 | 5.0 | 10.0 | 5.0 | 10.0 | 4.0 | 5.0 | 5.0 | 10.0 | 4.0 | 5.0 | 5.0 | 10.0 |
| Peak Force | kN | 11.1 | 11.1 | 5.8 | 14.5 / 12.8 | 7.3 / 6.4 | 17.8 | 14.7 | 22.1 | 11.1 | 17.8 | 14.7 | 24.0 | 17.8 |
| lbf | 2,500 | 2,500 | 1,306 | 3,261 / 2,882 | 1,630 / 1,441 | 4,000 | 3,300 | 4,958 | 2,500 | 4,000 | 3,300 | 5,395 | 4,000 | |
| Max. Velocity | mm/sec | 234 | 292 | 584 | 292 | 584 | 234 | 292 | 292 | 584 | 234 | 292 | 292 | 584 |
| in/sec | 9.2 | 11.5 | 23.0 | 11.5 | 23.0 | 9.2 | 11.5 | 11.5 | 23.0 | 9.2 | 11.5 | 11.5 | 23.0 | |
| SWA Screw DLR (Dynamic Load Rating) | kN | 41.1 | 53.6 | 47.2 | 73.3 | 76.4 | 67.2 | 73.3 | 91.74 | 76.4 | 67.2 | 73.3 | 91.7 | 76.4 |
| lbf | 9,240 | 12,050 | 10,611 | 16,479 | 17,175 | 15,107 | 16,479 | 20,624 | 17,175 | 15,107 | 16,479 | 20,624 | 17,175 | |
| SWB Screw DLR (Dynamic Load Rating) | kN | 24.25 | 31.63 | 27.85 | 43.25 | 45.07 | 39.65 | 43.25 | – | 45.07 | 39.65 | 43.25 | – | 45.07 |
| lbf | 5,452 | 7,110 | 6,260 | 9,723 | 10,133 | 8,913 | 9,723 | – | 10,133 | 8,913 | 9,723 | – | 10,133 | |
| Weight* | kg | 7.80 | 7.80 | 7.80 | 11.25 | 11.25 | 12.29 | 12.29 | 12.29 | 12.29 | 14.16 | 14.16 | 14.16 | 14.16 |
| lbf | 17.2 | 17.2 | 17.2 | 24.8 | 24.8 | 27.1 | 27.1 | 27.1 | 27.1 | 31.2 | 31.2 | 31.2 | 31.2 | |
| Stroke | mm | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 |
| in | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | |
| Base Inertia | kg-cm2 | 4.8997 | 4.8997 | 4.8997 | 8.1108 | 8.1108 | 9.7864 | 9.7864 | 9.7864 | 9.7864 | 11.4073 | 11.4073 | 11.4073 | 11.4073 |
| lb-in | 1.6723 | 1.6723 | 1.6723 | 2.7716 | 2.7716 | 3.3442 | 3.3442 | 3.3442 | 3.3442 | 3.8966 | 3.8966 | 3.8966 | 3.8966 | |
| Ambient Temp Range** | °C | 0 to 50 | ||||||||||||
| °F | 32 to 122 | |||||||||||||
| IP Rating | Standard IP65 (static) | |||||||||||||
| Agency Listings | CE, UL, & IP65 | |||||||||||||
*Weight varies per feedback device or mounting option. See table below for details.
**From 0-10°C (32-50°F), additional startup procedure may be required for optimal performance. See user manual for details.
§NOTE: Screw/Lead Accuracy: 0.023 mm/300 mm; (0.0009 in/ft)
SWA Weight Adders
| Water Cooling | Rear Trunnion | Feedback Option | ||||||
|---|---|---|---|---|---|---|---|---|
| F1 | F2 | A1 | K1*** | W1 | ||||
| SW_3 | kg | 0.36 | 0.10 | 0.3 | 0.77 | 0.59 | 1.27 | 1.03 |
| lb | 0.80 | 0.22 | 0.65 | 1.70 | 1.30 | 2.80 | 2.26 | |
| SW_4 | kg | 0.52 | 0.24 | 0.3 | 0.48 | 0.64 | 1.34 | 0.72 |
| lb | 1.15 | 0.52 | 0.65 | 1.05 | 1.41 | 2.96 | 1.59 | |
***Weight adder for K1 option includes weight of brake
SWA Motor Specifications
| Series | SW_3 | SW_4 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Motor Winding | A3 | B3 | A2 | B2 | A3 | B3 | A4 | B4 | ||
| Torque Constant (kt) | N-m/A Peak | 0.62 | 1.21 | 0.52 | 0.90 | 0.61 | 1.20 | 0.64 | 1.29 | |
| in-lb/A Peak | 5.5 | 10.7 | 4.6 | 8.0 | 5.4 | 10.6 | 5.7 | 11.4 | ||
| Voltage Constant (ke) | V/Krpm Peak | 79.8 | 154 | 66.1 | 107.2 | 78.1 | 153.1 | 81.1 | 162.3 | |
| Continuous Stall Torque | No Water Cooling | N-m | 4.4 | 4.3 | 5.5 | 4.9 | 8.4 | 8.5 | 14.6 | 14.6 |
| in-lb | 39 | 38 | 48.8 | 43.0 | 74 | 75 | 129 | 129 | ||
| With Water Cooling | N-m | 8.8 | 8.6 | 11.0 | 9.7 | 16.7 | 17.0 | 20.8 | 20.8 | |
| in-lb | 78 | 76 | 97.6 | 86 | 148 | 150 | 184 | 184 | ||
| Continuous Stall Current | No Water Cooling | A RMS | 5 | 2.5 | 7.5 | 3.8 | 9.7 | 5.0 | 16 | 8 |
| With Water Cooling | A RMS | 10.0 | 5.0 | 15.0 | 7.6 | 19.4 | 10.0 | 23 | 12 | |
| Peak Torque | N-m | 13.2 | 12.9 | 16.5 | 14.6 | 25.1 | 25.4 | 43.7 | 43.7 | |
| in-lb | 117 | 114 | 146 | 129 | 222 | 225 | 387 | 387 | ||
| Peak Current | A RMS | 15 | 7.5 | 22.5 | 11.4 | 29.1 | 15.0 | 48 | 24 | |
| Resistance | Ohms | 2.07 | 8.3 | 0.9 | 4.2 | 0.58 | 2.32 | 0.36 | 1.46 | |
| Inductance | mH | 3.8 | 15 | 3.65 | 15.7 | 2.75 | 11.5 | 2.04 | 8.9 | |
| No. of Poles | 8 | |||||||||
| Bus Voltage | V RMS | 230 | 460 | 230 | 460 | 230 | 460 | 230 | 460 | |
| Speed @ Rated V | RPM | 3,500 | ||||||||
SWA Brake Specifications
| Series | SW_3 | SW_4 | |
|---|---|---|---|
| Rotor Inertia | gm-cm2 | 73 | 239 |
| oz-in2 | 0.400 | 1.307 | |
| Current | Amp | 0.43 | 0.67 |
| Holding Torque | N-m | 4.0 | 10.0 |
| in-lb | 35 | 89 | |
| Engage Time | mSec | 40 | 25 |
| Disengage Time | mSec | 50 | 50 |
| Voltage | Vdc | 24 | 24 |
Dimensions
SWA/SWB Actuator Dimensions
Manuals & Part Sheets
Additional Resources
Information Center:
English
Chinese
German
Spanish
Application Checklists
Catalogs & Brochures
- Corporate Overview-Linear Motion Solutions Brochure (English)
- SOLUCIONES DE CONTROL DE MOVIMIENTO (Spanish, Corporate Overview-Motion Control Solutions Brochure)
- Brochure sur l'entreprise Tolomatic (French, Corporate Overview-Linear Motion Solutions Brochure)
- ServoWeld® SWA/SWB Integrated Servo Motor Actuators
- ServoWeld® Actuadores MODELOS SWA Y SWB (Spanish, ServoWeld® SWA/SWB Integrated Servo Motor Actuators)
- ServoWeld® SWA/SWB Integrierte Servomotorantriebe (SWA-B Actuator brochure, German)
- ServoWeld® 电动缸 SWA 和 SWB 型 (Chinese, ServoWeld® SWA/SWB Integrated Servo Motor Actuators)
- ServoWeld® Refurbishment and Remanufacturing Services
- Servicios de reacondicionamiento y refabricación de ServoWeld® (ServoWeld® Refurbishment and Remanufacturing Services-Spanish)
- ServoWeld® Aufarbeitungs- und Wiederaufarbeitungsservices (ServoWeld Refurbishment and Remanufacturing Services brochure, German)
- ServoWeld® 的翻新和再制造服务 (ServoWeld® Refurbishment and Remanufacturing Services-Chinese)
- ServoWeld with Integrated Force Sensor, brochure
- 带内置式力传感器的 ServoWeld (ServoWeld Force Sensor brochure ^CN)
- ServoWeld mit integriertem Kraftsensor (DE- ServoWeld w/Force Sensor brochure)
- Tolomatic Welding Solutions (English)
- Tolomatic SOLUCIONES DE SOLDADURA (Spanish, Tolomatic Welding Solutions)
- Tolomatic Lösungen für Widerstandsschweißen (Tolomatic Welding Solutions; German)
- Tolomatic 焊接解决方案 (Chinese, Welding Solutions)
- Automotive Applications Brochure
- Aplicaciounes de la Ind. Automotriz (Auto Appl SP)
- 汽车行业应用手册 Brochure (Chinese: Automotive Applications Brochure)
- All Electric Projection Welding Brochure
- Restore - ServoWeld Repair Program brochure
- Restore-ServoWeld Repair Program brochure^CN
- RESTORE WIEDERHERSTELLEN (Flyer DE)
- RESTORE (RESTAURAR); (flyer, ES)
- UNTERNEHMENSÜBERSICHT (German, Corporate Overview)
Certifications
Guides
Terms & Conditions
Videos
White Papers
- Servo spot welding offers superior performance and lower lifetime costs for auto manufacturing
- A technical comparison: Performance of pneumatic cylinders and electric rod actuators
- Electric actuator technology comparison: Integrated and traditional designs
- How roller-screw and ball-screw actuators compare in high-force applications
- Actuadores eléctricos con vástago frente a cilindros hidráulicos: una comparación de los pros y los contras de cada tecnología (Spanish - White paper - Electric vs Hydraulic Actuators)
- Servomotorisches Punktschweißen bietet für die Autoproduktion herausragende Leistungswerte und senkt die Wartungskosten (GERMAN, Whitepaper, Servo spot welding offers superior performance and lower))
- Understanding Servo Linear Actuator Systems
Success Stories
Auto Body Spot Welding
Product Family: Electric
Product Used: GSWA ServoWeld® Actuator
In auto body welding, servo linear actuators are used to improve weld quality by delivering highly repeatable force from cycle to cycle. This level of control helps reduce variation that can occur with conventional actuation methods.
Additional SWA Information
Tolomatic’s ServoWeld family of lighter weight integrated servo motor actuators for resistance spot welding (RSW) provide a cost-effective actuator design and best-in-class performance. SWA/B actuators provide users the lowest lifetime cost (lowest cost per spot weld) by providing the highest quality welds (best force repeatability) combined with the longest lasting actuators. ServoWeld SWA/B integrated servo spot welding actuators are highly efficient and the broad product family has many choices to optimize weight and performance.
SWA/SWB integrated servo motor actuators offer:
- 20+ million cycles for SWA models and 10+ million cycles for SWB
- Standard roller screw with highest dynamic load rating for more welds over competing roller screws, ball screws or pneumatic actuators
- Skewed motor windings designed for welding minimizes motor cogging for the best force repeatability
- Light-weight actuator design
- Forces to 4,000 lbf (17.8 kN)
- Optional water cooling