LT-050B-A/UB Light Force Pneumatic Weld Head – Parallel Gap Electrodes

The LT-050B-A/UB Light Force Micro Welding Head is an air actuated, precision, low inertia head designed specifically for thermocompression bonding. True vertical electrode motion eliminates electrode wiping action. A low mass spring and compound lever force system ensures accurate, repeatable welding force in the 125 to 1,000 gram range making the LT-050B-A/UB perfect for wire and ribbon applications such as fine trace circuit board repair, wire wound potentiometers, hybrid microwave devices, pacemakers, electrical fuses, ordnance fuses, smart cards and solar cells.

  • Low Force – 125 to 1,000 grams
  • True vertical electrode force motion
  • Exclusive “Unibond” electrodes
  • Specifically designed for thermocompression bonding applications

Technical Specifications

Actuation Type Pneumatic
Power Rating 125 Ws 2 kVA
Electrode Configuration Parallel Gap
Electrode Alignment Offset
Electrode Type Unitip
Force range0.28 - 2.20 lb
1.22 - 9.81 N
0.125 – 1.0 kg
Stroke .75 in (1.9 cm)
Automation Ready Yes
Size (L x W x H)Without Microscope: 16 in x 17.5 in x 10 in (406.4 mm x 444.5 mm x 254.0 mm)
With Optional Microscope: 16 in x 23 in x 10 in (406.4 mm x 584.2 mm x 254.0 mm)
WeightWithout Microscope: 6 lb (2.7 kg)
With Optional Microscope: 25 lb (11.4 kg)


  Title Version Model Revision  
Drawings (Weld Heads & Actuators – 3D Model (STEP)) LT-050B-A/UB Assembly Download