Walk-in environmental chamber

The Russells Technical Products W-Series is your solution for your most demanding temperature and humidity testing requirements. Available in walk-in, drive-in, or environmental room designs, the W-Series offers maximum flexibility in both chamber size and performance.

The welded, one-piece construction of the W-Series chambers allows for rapid thermal change rates, ultra-low temperature cooling, and prolonged soaks at extreme temperatures. Our modular construction WM-Series chambers provide flexibility and can also be manufactured as a dynamometer room or environmental room for long-term stability, accelerated testing, humidity, and forced long-term stability testing.

Walk-in and drive-in chambers can be configured for temperature, temperature-humidity, or altitude testing, depending on your specific needs.

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About Solid Construction Walk-in Temperature & Humidity Chambers

Moisture buildup can be destructive to products, especially electronics, causing corrosion and oxidation. Russells’ solid construction W-Series temperature and humidity test chambers afford maximum durability and performance for your most demanding simulation test requirements.

Controlled Testing Environment Capabilities

  • Steady-state or cyclical temperature and temperature/humidity tests
  • Rapid-rate temperature/humidity cycling tests (>9°F/5°C/min.)
  • Elevated temperature heat aging (>356°F/180°C)
  • Ultra low temperature cryogenic tests to -180°C/-292°F
  • Temperature range for single stage refrigeration:
    • -32°C/-25°F to 180°C/356°F
  • Temperature range for cascade refrigeration:
    • -73°C/-100°F to 180°C/356°F
  • Humidity Range:
    • 10% to 95% RH within the bounds of a 185°F/85°C max. dry bulb and a 40°F/4°C min. dewpoint
  • Brushed 304 series stainless steel liner, hermetically welded and dye checked
  • Welded steel frame
  • Durable blue enamel finishes (custom colors available)
  • Capable of handling extreme temperature and humidity
  • Full opening chamber door with dual gaskets (many door configurations available)
  • Fiberglass insulation, .25k factor
  • Removable access panels to serviceable components
  • Can be equipped with battery testing safety features according to EUCAR hazard safety level
  • Through‐wall access ports with foam plugs
  • Viewing windows
  • Refrigeration gauges
  • Refrigeration sound deadening package
  • Remote refrigeration systems
  • LN2 boost cooling
  • Humidity water demineralizer
  • Dry air purge system
  • Desiccant dehumidifier
  • Personnel entrance airlock
  • Entry ramp
  • Running time meter
  • Electrical disconnect switch
  • Product safeguard redundant over/under temperature limit
  • Circular or electronic chart recorders
  • Computer communications, networking, data‐logging software
  • Free standing remote instrument console
  • Additional safeguards for battery testing
  • Low or zero ozone depletion refrigerants
  • Energy-saving refrigeration bypass capacity control
  • Low stage desuperheater
  • Oil pressure switches
  • Compressor suction and discharge pressure switches
  • Air or Water cooled condenser
  • Vapor tank and condenser ASME certified
  • Compressor overload protection
  • High-stage compressor crankcase heater
  • Compressor head fans
  • Low-stage oil separator
  • All piping joints silfos or silver soldered
  • Stainless steel compressor condensate pans
  • All wiring meets NEC/NFPA standards
  • 120v control circuit transformer
  • Fully enclosed electrical panel
  • All circuits fused or circuit breaker protected
  • Full system function switches with system status pilot lights
  • Incandescent interior lighting
  • All wiring numbered or color coded
  • High Temperature limit safety
  • Master heating circuit contactor
  • Air circulator/heater interlock
  • Balanced load on 3 phase power
  • 3rd party NRTL/CSA/CE marking available
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About Modular Construction Walk-In Temperature & Humidity Chambers

Russells WM-Series, walk-in environmental test chambers can provide the following combination of controlled testing environments:

  • Steady state temperature and temperature/ humidity tests
  • Moderate temp./humidity cycling test (< 9°F/5°C/min.)
  • Moderate temperature heat aging (<185°F/85°C)
  • Economical cost
  • Ease of move in and install
  • Wide range of size and performance
  • Engineered cooling modules
  • Temperature range for single stage refrigeration:
    • -13°F/-25°C to 185°F/85°C
  • Temperature range for cascade refrigeration:
    • -100°F/-73°C to 185°F/85°C.
  • Humidity Range: 10% to 95 RH within the bounds of a 158°F/70°C max. dry bulb and a 40°F/4°C min. dewpoint.
  • Through‐wall access ports with foam plugs
  • Viewing windows
  • Refrigeration gauges
  • Refrigeration sound deadening package
  • Remote refrigeration systems
  • LN2 boost cooling
  • Humidity water demineralizer
  • Dry air purge system
  • Desiccant dehumidifier
  • Personnel entrance airlock
  • Entry ramp
  • Running time meter
  • Electrical disconnect switch
  • Product safeguard redundant over/under temperature limit
  • Circular or electronic chart recorders
  • Computer communications, networking, data‐logging software
  • Free standing remote instrument console
  • Additional safeguards for battery testing
  • Low or zero ozone depletion refrigerants
  • Energy-saving refrigeration bypass capacity control
  • Low stage desuperheater
  • Oil pressure switches
  • Compressor suction and discharge pressure switches
  • Air or Water cooled condenser
  • Vapor tank and condenser ASME certified
  • Compressor overload protection
  • High-stage compressor crankcase heater
  • Compressor head fans
  • Low-stage oil separator
  • All piping joints silfos or silver soldered
  • Stainless steel compressor condensate pans
  • All wiring meets NEC/NFPA standards
  • 120v control circuit transformer
  • Fully enclosed electrical panel
  • All circuits fused or circuit breaker protected
  • Full system function switches with system status pilot lights
  • Incandescent interior lighting
  • All wiring numbered or color coded
  • High Temperature limit safety
  • Master heating circuit contactor
  • Air circulator/heater interlock
  • Balanced load on 3 phase power
  • 3rd party NRTL/CSA/CE marking available
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About Walk-In Environmental Rooms

Our environmental test rooms are climate controlled and allow testing for long-term stability, accelerated testing, humidity, and forced long-term stability. We offer the widest range and selection of customizable sizes in environmental rooms used in a variety of industries including pharmaceutical, cold storage, cultivation rooms, incubation, concrete curing, film/photography storage, and more. Our environmental rooms are compliant with NIH, USDA, and other common industry standards.

  • Modular panelized construction with polyurethane foam insulation core (R-value 31+)
  • Wall thickness: 4” (100mm)
  • Available wall panel finishes: galvanized steel, steel with baked enamel, embossed aluminum, stainless steel
  • Floor loading to 600 lbs/ft₂ (2900 kg/m₂) evenly distributed
  • Available door sizes from 34” to 60” in multiple configurations
  • Hardware hinges and latches are heavy duty polished castings
  • Microprocessor temperature/humidity programmer controller mounted in console with acrylic cover
  • Temperature range: -30˚C (-22˚F) to +60˚C (+140˚F)
  • Humidity Range: 5% to 95% RH
  • Through-wall access ports with foam plugs
  • Viewing windows
  • Refrigeration gauges
  • Refrigeration sound deadening package
  • Water cooled condenser
  • Humidity water demineralizer
  • Dry air purge system
  • Desiccant dehumidifier
  • Ante rooms
  • Entry ramp
  • Running time meter
  • Electrical disconnect switch
  • Floor screeds for attachment of floorless chamber to existing building floor
  • Key locked instrumentation console
  • Outdoor refrigeration units
  • Circular or electronic chart recorders
  • Low or zero ozone depletion refrigerants
  • Air cooled condenser
  • Compressor overload protection
  • All piping joints silfos or silver soldered
  • Refrigeration/condenser skid
  • UL 508A compliant control panel
  • All wiring meets National Electric Code (NEC) standards
  • System branch circuits individually fused
  • 120v control circuitry
  • Full system function switches and indicator lights
  • System fault status indicators
  • All wiring color coded and labeled
  • High temperature failsafe limit