SR-073A High Force Motorized Servo Weld Head – Opposed Electrodes

Formerly known as Model 73

Designed for use in either automation or bench-top welding, the SR-073A weld head offers stable, repeatable electrode force for a wide range of resistance welding applications.  The SR-073A weld head features an easy-to-program servo motor controller that allows precise programming of electrode position and speed for up to 32 different weld schedules. The head can be configured in either an inline or parallel gap configuration, or specifically for automation applications.

  • Programmable speed and positions
  • Controlled servo motor actuation eliminates over-force
  • Force range 15 to 110 lb
  • Durable and robust head design
  • Displacement and force options
  • Comprehensive I/O

Technical Specifications

Actuation Type Motorized
Power Rating 7500 A
Electrode Configuration Opposed
Electrode Alignment Offset
Electrode Type ES0800 Series
Force range 15 - 110 lb
66.8 - 490N
6.8 - 4.9 kg
Stroke 1.75 in (44.5 mm)
Automation Ready Yes
Size (H x D x W) 18.4 in x 10.8 in X 6.8 in (468 mm x 274 mm x 173 mm)
Weight35.2 lb (16 kg)



  Title Version Model Revision  
Drawings (Weld Heads & Actuators – 3D Model (STEP)) SR-073A .step Download