• The COMETOID-VERTICAL is a sub-zero treatment chamber with workspace dimensions of 900[W] x 1350[D-front to back] x 900[H] mm. Its working temperature is minus 120 degree C to +160 degree C and it will reach within 2 1/2 hours approximately with full load. It is rated for a gross load of 1500Kgs. The chamber is rugged and totally self-contained except compressed air and electrical power supply
• It is ideal for Cold Treatment purposes. The load can be charged by means of moving trolleys or any other convenient methods available at site. It is used for sub-zero temper treatment of alloy steels, testing and shrink fit production purposes, etc. Preferably it is excellent for any application that requires the temperature as low as minus 120 degree C and high as +160 degree C.

We mainly  manufacturing    sub zero chamber  as per customer requirement

Salient features:

• Workspace dimensions: 900[W]x1350[D-front to back]x900[H] mm.
• Temperature range: minus120 degree C to +160 degree C.
• Pull down time: -120 degree C with load of 1500 Kgs including trays within 2 to 2 & half hours.
• Temperature controller: Eurotherm controller programmer with windows based software for monitoring and recording including Rs. 232 converter with communication with PC based windows. Working on Pt-100 sensor. 16 set point programs can be stored and executed. Mimic panel for indication of functions and faults.
• Refrigeration system: By mechanical two stage cascade refrigeration system using imported Copeland heavy duty semi hermetic compressors working on environmental friendly CFC free R404a and R508b refrigerant. System has standard features like Oil separators, expansion valves, 
• filter driers, suction line accumulator, expansion device etc., are so designed to give the required cooling. The refrigerants used are CFC free environmentally friendly R-404a and R-508b refrigerants.
• Cooling: The high stage & low stage compressors will start sequentially to cool the temperature of the chamber to set temperature of minus 80 degree C.
• Soaking: After reaching minus 80 degree C, the system compressor will get off and after raise of temperature, the compressor will be ON thereby maintaining a set temperature of minus 80 degree C. Sure soak facility is provided. In case of power failure or if the temperature rises, the program soak segment will automatically disconnect till the temperature reduces to set temperature band. At the end of the soaking, the programmer will automatically go to defrosting.
• Tempering: The programmer is set such that in the 3rd step there will be heating to +160 degree C and in the 4th segment there will be a soak time of 2 hours.
• Process over: After tempering, the process over flashing lamp along with buzzer will be energized