Sunstone parallel gap weld heads

wh1m-parallel-weld-headsPneumatic or manual actuation

WH2125A – WH2125M – WH2250A – WH2250M

The WH2 weld heads for capacitive discharge spot welders offer precision and repeatability at an affordable price. The WH2125 weld heads have 1/8” (0.3 cm) parallel set electrodes and are ideal weld heads for battery pack manufacturing when used with capacitive discharge spot welders. Once connected, these weld heads can be adjusted for your particular application. Each electrode’s pressure can be individually adjusted to ensure a strong weld from the spot welder. Head travel height ranges from 0 to 20 inches.

The WH2125A weld heads are pneumatic weld heads that requires an air compressor. Any size compressor will work since the weld heads come equipped with a pressure regulator mounted to the side. Once connected, the air pressure and head travel speed can be set to any preference. An electric foot pedal is included to actuate the weld head.

The WH2125M weld heads are operated by a manual lowering of the weld head by means of a foot padal and a chain connected through the work bench. The manual version weld heads have lower initial cost and are well suited for smaller production runs.

For applications requiring larger spot sizes, C-weldings WH2250A and WH2250M accept 1/4” (0.6 cm) electrodes.

Main Features

  • Adjustable force-firing
  • Pneumatic or manual actuation
  • Built in regulator
  • Up and down stroke velocity
  • Quick release height adjustment lever
  • Height adjustment from 0 – 20 cm
  • Weld trigger indicator light


  • Battery tab welding
  • Battery pack manufacturing or rebuilding
  • Prismatic NiCd battery assembly
  • Welding applications with access from one side