CLAM SHELL BLISTER SEALER MODELS.

Astrapac offers currently two models of manual CLAM BLISTER sealing device. Both provide a spot weld for securing closure. The OYSTER uses a constant heat approch to melt and form a bond between the sealing tips. The SONIC CLAMMASTER uses high frequency vibration to form a seal. This has several advantages over the OYSTER model (refer to brochure).