ISO 9001:2015 certified environmental test systems
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15 Rapid thermal transition systems

Thermal Shock Testing Chamber.

Precision-engineered testing for components exposed to sudden movement between severe cold and high-temperature zones.

2 / 3 zonesRapid basket transferProgrammable profilesIEC / ASTM / MIL-STD
Overall range-70°C to +200°CModel-dependent published range
Basket movement< 10 secondsPublished automatic transfer claim
Test volume100 L to 1500 LModel-dependent capacity
Resolution0.1°CTemperature display resolution
Chamber introduction

Expose material weakness through rapid temperature change.

ISOTECH Thermal Shock Test Chambers evaluate structural integrity and component performance under sudden movement between extreme temperatures.

The test process reveals effects associated with thermal expansion, contraction and material fatigue. The published two- or three-zone configurations support hot, cold and optional ambient conditions for critical quality-assurance and R&D validation.

ISOTECH states compliance-oriented design for IEC, IS, ASTM, MIL-STD and JSS requirements. Confirm the exact test method, specimen load, transition profile and configuration during technical review.

Designed and manufactured in BangaloreThe current product page positions the chamber for mission-critical components used by customers in India and international markets.
01 / Workspace100 L - 1500 LPublished overall capacity span
02 / Hot zone+50°C to +200°CPublished upper-zone range
03 / Normal zone+10°C to +50°CPublished centre-zone range
04 / Cold zone+20°C to -70°CPublished lower-zone range
05 / Resolution0.1°CTemperature resolution
06 / Gradient±1°C to 2°CPublished temperature gradient
07 / Raise & fall1°C to 10°CPublished average range
08 / Transfer< 10 secondsCold-to-hot or hot-to-cold movement
09 / Zones2 or 3Model configuration
Published application fields
Aerospace
Automotive
Electronics
Telecommunications
Test architecture

Cold. Transfer. Hot. Repeat.

A motor-screw basket system transports the specimen between conditioned cabinets with reduced vibration and improved travel linearity.

-70
Zone 01 / Cold cabinet

Cold exposure

The lower test zone conditions the specimen at the defined cold setpoint before transfer.

<10 stransfer claim
+200
Zone 02 / Hot cabinet

Hot exposure

The upper test zone applies the programmed high-temperature condition with fast recovery after transfer.

01 / CONDITIONStabilise the zoneAir circulation establishes the programmed cold or hot condition.
02 / TRANSFERMove the specimenAutomated basket travel produces the sudden thermal transition.
03 / RECOVERRestore the setpointLow thermal inertia and powerful refrigeration support fast recovery.
Construction / chamber bodyISOTECH Thermal Shock Chamber construction view
Chamber construction

Robust, sealed and built for repeated cycling.

The structure combines a corrosion-resistant test space, insulated external panels and serviceable access around the conditioning system.

01

Interior test space

Non-frost, vapour- and air-tight construction using high-gloss, vapour-tight welded 16 or 18 SWG 304-grade stainless steel with finished edges and removable shelving.

02

External structure

Outer construction is available in 16 or 18 SWG CRCA, GI or stainless steel with electrostatic super-fine powder-coat finishing.

03

Insulation

Asbestos-free and CFC-free mineral-fibre insulation supports thermal retention and helps reduce operating loss.

04

Door and gasket

A right-hinged front-opening single door uses double-lined grade-A silicone gaskets on the door and chamber body.

05

Viewing access

The multi-pane viewing window includes defogging heaters with automatic cut-off and suitable illumination for the specimen.

06

Ports, shelves and drainage

Left- or right-side cable ports with rubber plugs accept measurement and control cables. Shelves and drain fittings are supplied according to specification.

Performance systems

Engineered around fast recovery.

Air circulation, jacket heating, cascade-capable refrigeration and the transfer mechanism work together to create repeatable thermal transitions.

Air circulation

A suitably sized fan motor and impeller distribute conditioned air uniformly inside the cabinet.

  • Impeller exposed inside the conditioning plenum
  • Drive motor remains outside the chamber
  • Detachable plenum cover supports maintenance
  • Published noise level below 70 dB

Quick-response heating

Jacket-type air heaters achieve the high-zone setpoint while minimising direct radiation onto the specimen.

  • Low thermal inertia supports faster recovery
  • Quick specimen response after basket transfer
  • Uniform distribution limits test variation
  • Heater placement avoids direct specimen radiation

Refrigeration

Air- or water-cooled single-stage and cascade compression systems provide rapid cooling with low vibration.

  • Hermetic or boosted semi-sealed compressor options
  • Electronic automatic expansion valve
  • Water- or air-cooled condenser and plate-fin cooler
  • R404A and R23 refrigerants listed in the current specification

Transfer mechanism

The motor-screw basket system is designed for rapid travel between cold and hot cabinets.

  • Published automatic movement below 10 seconds
  • Improved movement linearity
  • Reduced vibration during transfer
  • Component changes support lower operating noise
Instrumentation system

Programme, cycle and review every transition.

The large-screen programmable controller combines TFT LCD touch and key input with programme-pattern graphics, test-history trends and cyclic ramp-and-soak segments.

TFT LCDRamp & soakTrend graphsRS-232/485USBPT100
01 / Programming

Profiles and cycles

Multiple programmes and profile segments support ramp, soak and repeatable cyclic operation.

02 / Communication

Connected operation

High-speed RS-232/485 ports, networking and USB communications support hardware connection and fast downloads.

03 / Continuity

Power recovery

The controller includes a published power-failure recovery operating function.

04 / Measurement

PT100 sensing

A PT100 sensor measures temperature for the control and monitoring system.

Independent protection at critical points.

The published safety architecture protects the operator, chamber and specimen during a malfunction or unsafe access condition.

Emergency stop switch and European-style signal tower
Door-opening stop and chamber door limit switch
Control-circuit overcurrent protection and thermal fuse
Adjustable high- and low-temperature safety cut-out
Reduced air mixing between hot and cold cabinets
Independent protection for each electrical functional circuit
High- and low-pressure refrigeration protection
Suction and head/discharge pressure measurement
HP/LP cut-off, oil separator and oil-return system
Model selection

Two published temperature configurations.

The selected model defines the minimum cold-zone condition and published capacity ceiling. Both models are listed in two- or three-zone forms.

Electrical connection415 V AC ±10%, 3 phase / N / PE, 50 Hz
Configuration reviewConfirm specimen load, required recovery time, zone count and working volume with ISOTECH.
Model Temperature range Zones Test-space range
ITTSC-70 LO -70°C to +200°C 3 / 2 100 L to 1000 L
ITTSC-40 LO -40°C to +200°C 3 / 2 100 L to 1500 L
Standard provisions: Cable ports with rubber plugs, specification-led shelving, drain outlet fittings and the published electrical connection.
Equipment portfolio

Thermal shock chamber samples.

Published ISOTECH equipment views showing chamber formats and completed systems.

SAMPLE / 01ISOTECH Thermal Shock Chamber sample 1
SAMPLE / 02ISOTECH Thermal Shock Chamber sample 2

Field feedback from ISOTECH clients.

Published customer reviews

I have been using Isotech environmental chambers for more than 3-4 years and placed orders multiple times. Robust technology, a user-friendly product and good technical support.

Radha KrishnaISOTECH client

The Salt Spray Chamber product was of high quality, and the customer service was excellent. Overall, I am very happy with the product.

Sanjeev ShettyISOTECH client

Nice working environment. Best environmental testing chamber manufacturers from Bangalore.

LokanathISOTECH client

Isotech Technology supplied reliability, durability and quality products to test different environmental conditions.

Malcom RoyISOTECH client
Define the transition profile

Specify your thermal shock test.

Share the specimen, required hot and cold limits, dwell time, cycle count, transfer requirement and workspace volume with the ISOTECH engineering team.

Product questions

Thermal shock chamber guidance.

Answers covering the test method, chamber architecture, customization, standards, service and operation.

Thermal shock testing evaluates how materials and products respond to rapid temperature changes. It helps assess durability and reliability under extreme environmental conditions.