CTI-Cryogenics 8044001G01C Cryo-Torr Regeneration Control 115VAC Helix

CTI-Cryogenics 8044001G01C Cryo-Torr Regeneration Control 115VAC Helix

The CTI-Cryogenics 8044001G01C is a dedicated regeneration control unit for Cryo-Torr cryopumps, manufactured by CTI-Cryogenics (a Helix Technology company) in Waltham, Massachusetts. It automates and sequences the regeneration cycle of a Cryo-Torr cryopump — the process of warming the pump from cryogenic temperatures, purging trapped gases, and roughing the system back down before returning the pump to normal operation. The front panel provides an adjustable delay timer (in hours), status LEDs for Purge, Delay, and Rough cycle stages, a green Power to Cryopump indicator, and a keyed Delay/Normal selector switch.

Specifications & What's Included

• Part Number: 8044001G01 C (MOD. G01)
• Input Power: 115VAC, 60Hz
• Fuse: 1/4 Amp
• Front Panel Controls: Delay timer (hours, rotary wheel), keyed Delay/Normal switch, main power toggle switch
• Front Panel Indicators: Purge (red LED), Delay (red LED), Rough (red LED), Power to Cryopump (green LED), Cryopump On indicator
• Rear/Side Terminal Connections: Interlock, Hi Vac, Temp, Vacu, Cryo, Purge, Rough, Relays — screw-terminal strip blocks
• Internal components: main control PCB, relay modules, orange film capacitors, wiring harness (visible in interior photo)
• Enclosure: painted steel box with front aluminum panel, panel-mount flanges; benchtop or rack-panel capable
• Attached power cord (NEMA 5-15 plug, 18AWG Type SJO cable visible)
• Manufacturer: CTI-Cryogenics, Waltham, MA, USA — a Helix Technology company

Applications

CTI-Cryogenics Cryo-Torr cryopumps are high-vacuum pumps used extensively in semiconductor fabrication, physical vapor deposition (PVD), sputtering, ion implantation, and other processes that require clean, oil-free high vacuum. Unlike turbomolecular or diffusion pumps, cryopumps trap gases by condensation on cryogenically cooled arrays; over time these trapped gases accumulate and the pump must be periodically regenerated — warmed up, purged, and roughed back down — before resuming normal operation. The 8044001G01C regeneration controller automates this multi-step cycle, sequencing the purge gas flow, timing the warm-up delay, and signaling the rough pump stages so the operator does not need to manage each step manually. This type of controller was standard equipment in semiconductor fabs and research vacuum systems from the 1980s through the 2000s that relied on CTI Cryo-Torr 8, Cryo-Torr High-Capacity, and related cryopump models. Replacement and spare units remain in demand for facilities still operating legacy CTI cryopump installations.