GSWA33 ServoWeld® Servo Actuators

ServoWeld® GSWA33 Series spot welding actuators provide lighter weight and an optional enclosed anti-rotate assembly. 

The ServoWeld GSWA33 series actuator provides peak thrusts of 2,100 lbf (9.3 kN) at a lighter weight enabling faster robot moves and faster weld schedules. The GSWA33 can be used on a variety of resistance spot welding gun applications (pinch guns, X guns, C guns) including weld guns which require the actuator to have anti-rotate of the thrust rod. Utilizing a standard roller screw, the GSWA33 provides the longest life (most welds) of any spot welding actuator on the market in its size, weight and force class. GSWA33 spot welding servo actuators are highly efficient, and its broad performance range allows it to easily handle multiple weld schedules and accommodate different materials/material thicknesses in resistance spot welding. 

GSWA33 resistance spot welding actuators offer:

  • 20+ million cycles with minimal maintenance 
  • Standard roller screw with highest dynamic load rating for more welds over competing roller screw, ball screws or pneumatic actuators 
  • ±3% force repeatability over the life of the actuator 
  • Light-weight actuator design 
  • Forces to 2,100 lbf (9.3 kN) 
  • Optional water cooling 
  • Optional internal guide for anti-rotating of the thrust rod 
  • Integration for 7th axis operation with most global robot manufacturers 

Features & Ordering

Download the GSWA33 Brochure for full details on features

GSWA33 Brochure

ServoWeld® GSWA33 Features

ServoWeld® GSWA33 Guided Features

Specifications

GSWA33 Electric Linear Actuator Specifications

Specifications Units 33
Maximum Stroke in (mm) 18 (457)
Maximum Force lbf (kN) 2,100 (9.3)
Maximum Speed in/sec (mm/sec) 24 (610)

GSWA Performance & Mechanical Specifications

GSWA33, GSWA33-GUIDED GSWA44, GSWA04 GSWA55
MV23/43 MV22/42 MV23/43
Size in 3.3 4.4 5.6
mm 83.0 111 142
Nut/Screw RN04 RN05 RN10 RN05 RN10 RN04 RN05 RN05 XR RN10 RN05 RN10
Screw Lead in 0.157 0.197 0.397 0.197 0.397 0.157 0.197 0.197 0.397 0.197 0.397
mm 4.0 5.0 10.0 5.0 10.0 4.0 5.0 5.0 10.0 5.0 10.0
Peak Force lbf 2,500 2,500 1,306 3,261 / 2,882 1,630 / 1,441 4,000 3,300 4,000 2,500 8,243 4,121
kN 11.1 11.1 5.8 14.5 / 12.8 7.3 / 6.4 17.8 14.7 17.8 11.1 36.7 18.3
Max. Velocity in/sec 9.2 11.5 23.0 11.5 23.0 9.2 11.5 11.5 23.0 7.9 15.7
mm/sec 234 292 584 292 584 234 292 292 584 201 399
Screw Dynamic Load Rating lbf 9,240 12,050 10,611 16,479 17,175 15,107 16,479 20,623 17,175 21,716 36,149
kN 41.10 53.60 47.20 73.30 76.40 67.2 73.30 91.74 76.40 96.60 160.80
Nominal Back Drive Force lbf 98 78 39 91 46 114 91 91 46 152 76
N 436 347 173 405 205 507 405 405 205 676 338
Ambient Temp Range °F 50 to 122
°C 10 to 50
IP Rating Standard IP65 (static)
Agency Listings CE, UL, & IP65

GSWA Weight, Stroke, Inertia

GSWA33 GSWA33-Guided GSWA04 GSWA44 GSWA55
MV23,43 MV23,43 MV22,42 MV23,43 MV23,43 MV23,43
Weight
(with 6 in / 152 mm stroke)
lb 18.1 28.5 29.8 32.0 35.2 67.2
kg 8.2 12.9 13.5 14.5 16.0 30.5
Stroke in 6.0 to 18.0 6.0 to 9.0 6.0 6.0 6.0 to 18.0
mm 152.4 to 451.2 152.4 to 228.6 152.4 152.4 152.4 to 451.2
Weight per Unit of Stroke lb/in 0.6603 0.6603 1.1035 1.1035 1.1035 2.1115
kg/mm 0.0118 0.0118 0.0197 0.0197 0.0197 0.03771
Base Inertia lb/in 1.6723 1.6723 2.7716 3.3442 3.3442 3.3442
kg-cm2 4.8997 4.8997 8.1108 9.7864 9.7864 9.7864
Inertia per Unit of Stroke lb-in2/in 0.00358 0.00358 0.00984 0.00984 0.00984 0.00984
kg-cm2/mm 0.00041 0.00041 0.00113 0.00113 0.00113 0.00113

GSWA Motor Specifications

GSWA33 GSWA04 GSWA44 GSWA55
GSWA33, Guided GSWA04
MV23 MV43 MV22 MV42 MV23 MV43 MV23 MV43
Bus Voltage V RMS 230 460 230 460 230 460 230 460
Torque Constant (kt) in-lb/A Peak 5.5 10.7 4.6 8.0 5.4 10.6 6.7 13.4
N-m/A Peak 0.62 1.21 0.52 0.90 0.61 1.2 0.76 1.51
Voltage Constant (ke) V/Krpm Peak 79.8 154 66.1 107.2 78.1 153.1 100 201
Continuous Stall Torque No Water Cooling in-lb 39 38 48.8 43.0 74 75 112 112
N-m 4.4 4.3 5.5 4.9 8.4 8.5 12.7 12.7
With Water Cooling in-lb 78 76 97.6 86 148 150 NA NA
N-m 8.8 8.6 11.0 9.7 16.7 17.0 NA NA
Continuous Stall Current No Water Cooling A RMS 5.0 2.5 7.5 3.8 9.7 5.0 11.8 5.9
With Water Cooling A RMS 10.0 5.0 15.0 7.6 19.4 10.0 NA NA
Peak Torque in-lb 117 114 146 129 222 225 335 335
N-m 13.2 12.9 16.5 14.6 25.1 25.4 37.8 37.8
Peak Current A RMS 15 7.5 22.5 11.4 29.1 15.0 35.4 17.7
Resistance Ohms 2.07 8.3 0.9 4.2 0.58 2.32 0.57 2.93
Inductance mH 3.8 15.0 3.65 15.7 2.75 11.5 1.4 5.8
Speed @ Rated V RPM 3,500 2,400
No. of Poles 8

GSWA Brake Specifications

Series GSWA33 GSWA44 & GSWA04 GSWA55
Rotor Inertia oz-in2 0.400 1.307 1.171
gm-cm2 73 239 214
Current Amp 0.43 0.67 0.66
Holding Torque in-lb 35 89 145
N-m 4.0 9.0 16.4
Engage Time mSec 40 25 15
Disengage Time mSec 50 35 25
Voltage Vdc 24

Dimensions

ServoWeld® GSWA 33 Dimensions

ServoWeld® GSWA 33 Guided Dimensions

Additional Resources

Download the GSWA Manual

GSWA Manual

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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 GSWA information

The ServoWeld GSWA33 series actuator provide peak thrusts of 2,100 lbf (9.3 kN) at a lighter weight enabling faster robot moves and faster weld schedules. The GSWA33 can be used on a variety of resistance spot welding gun applications (pinch guns, X guns, C guns) including weld guns which require the actuator to have anti-rotate of the thrust rod. Utilizing a standard roller screw, the GSWA33 provides the longest life (most welds) of any spot welding actuator on the market in its size, weight and force class. GSWA33 spot welding servo actuators are highly efficient and its broad performance range allows it to easily handle multiple weld schedules and accommodate different materials/material thicknesses in resistance spot welding.

GSWA33 resistance spot welding actuators offer:

  • 20+ million cycles with minimal maintenance
  • Standard roller screw with highest dynamic load rating for more welds over competing roller screw, ball screws or pneumatic actuators
  • ±3% force repeatability over life of actuator
  • Light-weight actuator design
  • Forces to 2,100 lbf (9.3 kN)
  • Optional water cooling
  • Optional internal guide for anti-rotate of the thrust rod
  • Integration for 7th axis operation with most global robot manufacturers