Used Ajax Cyrogenic Cooler, manufactured by Ajax Equipment, stainless steel construction, mobile on castors, internal screw width is 150mm, screw length 1500mm, overall length 2800mm, flanged inlet diameter 250mm. Cryogenic cooler is insulated and clad in stainless steel. Cooler is driven by Hainsworth speedranger drive (84rpm) and powered by a 2.2kw Brook Hansen electric motor.