Product Overview

The KR‑303 high‑low temperature test chamber is bench‑floor‑style environmental reliability laboratory instrument. It simulates extreme hot and cold ambient conditions to evaluate physical‑property shifts, performance degradation and failure risks of electronic components, plastic‑rubber parts, auto accessories and industrial materials under sustained high‑temperature, low‑temperature and cyclic temperature‑switching environments.

Available in multiple standard inner‑cavity dimensions and supports non‑standard custom‑size requests. It verifies whether finished goods and raw‑materials can maintain specified functional performance after extreme‑temperature exposure. Widely implemented for incoming‑material QC, new‑product R‑D and standard‑compliant certification work across electronics, automotive, aerospace, chemical and material‑testing sectors.

Core Product Competitive Advantages

1. Broad temperature spectrum with stable thermal field performance Operating range reaches ‑60 ℃ up to +150 ℃. Optimised forced air‑circulation duct design keeps temperature fluctuation within ±0.5 ℃ and uniformity ≤±2~3 ℃ under no‑load state, delivering repeatable test‑data for batch‑comparison experiments.
2. Dual‑option high‑reliability refrigeration architecture Choose single‑stage or cascade re‑compression refrigeration system fitted with well‑known brand fully‑enclosed compressors. Air‑cooled heat‑dissipation layout removes requirements for external cooling‑water piping, simplifying lab installation conditions.
3. Precision PID micro‑processor digital control Equipped with PT100 platinum‑resistance temperature sensor. Display resolution hits 0.1 ℃. Timing function spans 0.1‑999.9 hours covering second / minute / hour units. SSR non‑contact output reduces component wear for long‑term continuous‑run testing.
4. Heavy‑duty anti‑corrosion cabinet construction Inner working cavity adopts SUS304 stainless‑steel sheet. Outer shell is phosphated electrostatic‑sprayed carbon‑steel plate. Composite polyurethane plus ultra‑fine glass‑wool insulation reduces thermal‑energy loss. High‑resilience silicone rubber door gasket effectively blocks cold‑heat leakage. Transparent heated observation window permits direct specimen monitoring without opening the door.
5. Complete multi‑layer electrical safety interlocks Built‑in comprehensive protection mechanisms including leakage‑current safeguard, short‑circuit cut‑off, over‑temperature alarm, compressor over‑pressure / overload / over‑current protection and fan‑motor over‑heat prevention. Mobile brake‑castors support convenient relocation and stable positioning.

Complete Technical Parameter Table

Compliance Standards: GB 10589, GB 10592, GB 11158, GB/T5170.2, GB/T2423.1, GB/T2423.2

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation Place chamber on level workshop ground, lock mobile brake castors. Check refrigeration unit, circulating‑fan, sensor and all safety‑alarm functions. Arrange specimens onto adjustable sample shelves; maintain sufficient clearance for smooth air circulation inside cavity. Securely close chamber door and power‑on main‑unit.
2. Parameter Configuration Set target temperature value and total experimental runtime via digital control panel. Configure alarm threshold for over‑temperature protection. Initiate running cycle and wait for inner‑cavity temperature to stabilise at set‑point before formal test start.
3. Execute High‑Low Temperature Reliability Test Equipment automatically completes heating or cooling procedure and maintains constant‑temperature holding status. Operators can observe sample status through observation window. System will auto‑stop once preset timing expires.
4. Specimen Retrieval & Performance Assessment Wait until cavity temperature returns close to ambient level before opening door. Take‑out test‑pieces and inspect for deformation, cracking, functional failure or appearance change. Record observation results for QC‑reports. Multiple replicate‑specimen tests are recommended for statistically‑valid evaluation conclusion.
5. Post‑Test Tidying Clear debris inside test‑chamber. Reset controller parameters. Shut‑down main power for long‑term idle‑storage. Periodically inspect door‑seal gasket condition and calibrate PT100 temperature sensor.

Wide Industrial Application Scenarios

Electronic & Electrical Manufacturing Enterprises

High‑low‑temperature reliability screening for circuit‑boards, sensors, household‑appliance components and control‑modules; verify working stability under extreme thermal environments.

Automotive‑Component Factories

Thermal‑stress assessment for auto interior‑exterior plastic‑parts, on‑board electronics and rubber sealing‑components.

Aerospace & Defence‑Industry R‑D Departments

Carry‑out national‑standard compliant high‑low‑temperature simulation evaluation for aviation‑grade material and equipment samples.

Plastic‑Rubber & Chemical‑Material Producers

Evaluate thermal‑resistant and cold‑resistant property of polymer, coating and new‑chemical‑raw‑materials.

Third‑Party Accredited‑Testing‑Organizations

Conduct formal high‑low‑temperature environmental assessment and generate inspection‑documents for product‑certification‑audits.

Standard Factory‑Full‑Delivery Kit

1. KR‑303 high‑low temperature test chamber main unit (select corresponding inner‑size variant)
2. Dual‑set adjustable stainless‑steel specimen‑holding shelves
3. Heated multi‑layer hollow glass observation‑window assembly
4. 25 mm & 50 mm reserved test‑cable feed‑through port with silicone plug
5. PID digital temperature‑timing control‑module
6. Power‑supply connecting‑cable
7. Multilingual printed‑operation‑manual complying with GB‑relevant‑test‑specifications
8. Factory‑issued performance‑inspection‑certificate

Optional spare‑parts & custom‑options: non‑standard custom inner‑chamber dimension, upgraded extended‑temperature‑range variant, overseas‑market custom‑voltage adaptation.

Global Distributor & After‑Sales‑Support

We provide remote‑one‑on‑one operational guidance covering temperature‑timing‑setting, routine refrigeration‑system maintenance and fault‑alarm troubleshooting. Spare‑parts stock includes door‑seal gaskets, sensor‑accessories and refrigeration‑consumables. Bulk‑order customers can apply for custom‑power‑supply‑voltage variants for overseas‑market deployment. Regional‑exclusive‑agent privileges contain priority‑production‑scheduling, OEM private‑branding‑services and complete‑set high‑definition product‑marketing‑image‑resources.

Product‑Banner‑Marketing‑Slogan

KR‑303 High‑Low Temperature Test Chamber | GB‑Compliant Electronics‑Auto‑Aerospace‑Material‑Extreme‑Hot‑Cold‑Reliability‑QC‑Testing‑Instrument

Core‑Feature‑Labels‑For‑Product‑Images

GB10589‑GB2423‑Compliant,High‑Low‑Temperature‑Test‑Chamber,‑60~+150℃‑Temp‑Range,±0.5℃‑Temp‑Fluctuation,PID‑SSR‑Digital‑Control,PT100‑Temperature‑Sensor,Single‑Stage‑Cascade‑Refrigeration‑Option,SUS304‑Stainless‑Steel‑Inner‑Chamber,Heated‑Observation‑Window,0.1‑999.9H‑Programmable‑Timer,Multi‑Layer‑Safety‑Protection,Brake‑Mobile‑Casters,Electronics‑Automotive‑Aerospace‑Plastic‑Rubber‑Material‑Extreme‑Temperature‑Resistance‑Reliability‑Evaluation

Safety‑Operation‑Reminder

Do not open chamber‑door under extreme high‑temperature or ultra‑low‑temperature operating status to prevent scald or frost‑bite injury. Reliable three‑phase power‑grounding must be completed before power‑on. Avoid frequent repeated power‑on‑off cycles to protect compressor service‑life. Periodically inspect door‑gasket sealing performance.