What is a Two-Zone Thermal Shock Chamber ?
2-Zone Thermal Shock Chambers from ATMARS consist of two separately controlled hot and cold zones (one atop the other) with product being transferred vertically by a pneumatic basket for rapid product temperature changes. The conditioned air is pre-cooled or pre-heated beyond the setpoint, allowing quicker recovery of the desired condition after transfer.
The induced thermal stresses can reveal hidden manufacturing defects in electronic sub-assemblies and other components by the expansion and contraction of critical parts, ideal for testing to find product flaws before they reach your customers.
AST Series Two Zone (Hot/Cold) Vertical Layout - direct hot/cold transfer of basket by a pneumatic elevator.
Our standard two-zone thermal shock chambers models workspace volumes include: 48L, 72L, 80L, 100L, 150L and 216L. And interior dimensions can be customized according to specimen sizes and your testing requirements.
- Hot zone to +180℃ (356° F)
- Cold zone to -75℃ (-103° F)
- Other temperature range available
High temperature exposure: +150℃ (302° F)
Low temperature exposure:
Type A: -40℃ (-40° F)
Type B: -55℃ (-67° F)
Type C: -65℃ (-85° F)
Recovery time for mechanical refrigeration : ≤ 3minutes
High / Low temperature exposure time: 30minutes
Automatic transfer of test specimens between hot zone and cold zone
Basket transfer time within 10 Sec.
An ATMARS application engineer can assist you in selecting the chamber configuration and size that is most economical for your testing needs.
Welded #SUS304 stainless steel interior
Cold-rolled steel exterior with powder coated finish
Welded structural base frame with removable service access panel on three sides for easy maintenance
Direct drive-shaft powered forced air circulation
Instant basket transfer between temperature zones with a pneumatic elevator
Low "K" factor urethane foam insulation and fiberglass thermal insulation
Full opening chamber door with dual silicone sealing gaskets
Multi-pane tempered heated viewing windows with interior light
Front built-in touch-screen programmable controller
Chamber fan motors externally located
Through-wall traveling access port
Stainless steel basket shelves
Heavy duty casters and floor stands for mobility and balance
Make modifications to structure when necessary allowing for a modular assembly on-site overcome most facility issues
Efficient open wire nichrome resistance heaters
Forced interior air circulation with efficient fan motors
Self-contained Single stage or cascade mechanical refrigeration system
- France TECUMSEH hermetic reciprocating compressor
- German GEA (Bock) semi-hermetic reciprocating compressor
- German BITZER semi-hermetic reciprocating compressor
Zero ozone depletion potential (ODP) refrigerants - R404A / R23
Air cooled condenser / Water Cooled Condenser (Option) / Option Liquid Nitrogen Cooling
High efficiency brazed plate heat exchanger (Option)
EMERSON A-W Series oil separators
Solenoid valves for energy saving refrigeration bypass capacity control
All piping joints silfosed or silver soldered
Oil pressure switches
All circuits fused or circuit breaker protected
All wiring labeled or color coded
Fully enclosed electrical panel
High Temperature limit safety
Balanced load on 3 phase power
Number, size, position and shape (round, glove or square) of traveling access ports
Additional basket shelves
Water cooled condenser
Remote refrigeration system
Boost cooling system, LN2 or CO2
Dry air purge
Dry nitrogen purge