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. Built in the USA, with 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)


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