EXT4.0 Specifications
Extreme Thermal Cycling EXT4.0
Interior Volume 112 cu. ft.
3171 Liters
Interior Dimensions
(W x D x H)
53" x 54" x 68"
1366 x 1371 x 1727 mm
Exterior Dimensions
(W x D x H)
69.8" x 78.3" x 103.8"
1772 x 1988 x 2637 mm
Temperature Range -100 to 200 or 250°C
-148 to 392 or 482°F
Average Change Rate
(lower with 50Hz power)
Power 440V/480V 100A max
Notes 250°C high temp optional

Specifications are for reference only. Please contact ESPEC for detailed information and pricing.


This model is built to order with features/options as requested. Customization possible. Request a quote for current lead-time information.

EXT Brochure

More detail about this model at its product family page: Extreme Thermal Cycling

EXT4.0: Extreme Thermal Cycling Features

Cooling System

  • Vacuum Jacketed (VJ) liquid nitrogen (LN2) valves and manifold.
  • Proportional control and valve system for maximum LN2 efficiency and consistent temperature control, while reducing two-phase (gas/liquid) states that cause problems in traditional on/off solenoid-based control. (Proportional manifold optional on 2.0 models.)
  • VJ eliminates condensation, dripping water, OSHA safety concerns, and energy loss compared to other insulation methods.
  • Efficient, economical LN2 usage with either low-pressure Dewar tanks or higher pressure Permacyl and bulk tank systems.

Chamber Design

  • Stainless steel interior, painted exterior with two full opening doors (one door on 2.0 models)
  • Nichrome wire heating built into an overhead plenum
  • High-velocity airflow for improved product temperature change rates.
  • Adjustable feet for leveling unit (stand options for 2.5/3.0 models)

Control System

  • Allen-Bradley PLC controller
  • Desktop PC with flat panel monitor
  • Typhoon Manager Software
  • Four additional thermocouple input channels available
  • Eight user state relays (USR)

More detail about this model at its product family page: Extreme Thermal Cycling

Photo of EXT4.0
Photo of EXT4.0

Photos are for reference only, and may show optional features. Please contact ESPEC for detailed information and pricing.

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