Product Overview

The KR‑305 anti‑yellowing aging test chamber is multi‑purpose accelerated‑ageing laboratory apparatus. It reproduces combined stress of solar‑simulated ultraviolet irradiation and high‑temperature thermal environment. Under controlled test conditions, several hours of indoor accelerated exposure is equivalent to months of natural outdoor sunlight exposure, to assess colour‑change, yellowing and surface degradation risk for light‑coloured polymer, leather, footwear raw‑materials and coated goods.

Equipped with 300 W UV light‑source and rotating turntable for even light distribution, this unit supports both anti‑yellowing light‑exposure assessment and thermal‑ageing baking test. It is widely deployed in footwear factories, plastic‑rubber workshops, paint‑coating manufacturers, cosmetics‑material labs and third‑party inspection institutes for incoming‑material screening, formulation comparison and finished‑product appearance‑reliability verification.

Core Product Competitive Advantages

1. Uniform UV‑irradiation with rotary sample‑turntable 300 W dedicated UV lamp simulates solar ultraviolet spectrum. Φ450 mm rotating specimen tray runs at 10 ± 2 rpm, ensuring every test‑sample receives consistent light dosage, eliminating deviation caused by stationary‑position light‑field difference.
2. Forced hot‑air circulating temperature‑control system Circulating‑hot‑air structure delivers homogeneous cavity temperature. Working range covers ambient‑temperature up to 200 ℃; temperature resolution reaches 0.1 ℃, control accuracy ±1 ℃. Satisfies anti‑yellow light‑exposure as well as high‑temperature thermal‑ageing dual‑mode requirements.
3. Memory‑type long‑duration timing management Timer spans 0‑999 hours, featuring power‑off memory and completion buzzer reminder. Automatically records running progress; resumes timing status after unexpected power‑interruption, suitable for unattended long‑cycle ageing experiments.
4. Durable anti‑corrosion cabinet layout Inner working cavity adopts SUS304 stainless‑steel sheet, resistant to high‑temperature oxidation and easy to wipe clean. Outer shell is electrostatic powder‑coated steel plate. Transparent observation window allows real‑time sample‑status check without opening chamber door. Mobile brake‑castors facilitate lab relocation and stable positioning.
5. Complete multi‑layer electrical‑safety interlocks Built‑in EGO over‑temperature protection circuit, overload switch and ammeter monitoring module. It cuts off heating‑lamp output automatically once abnormal temperature or current occurs, lowering equipment‑damage risk during continuous‑run testing.

Complete Technical Parameter Table

Compliance Standards: HG/T 3689, ASTM D1148, JIS P8127

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation Place chamber on level, well‑ventilated lab ground, lock mobile castors. Inspect UV‑lamp, rotating‑turntable, hot‑air‑fan and safety‑alarm function. Arrange specimens evenly on rotary tray; reserve proper gaps to avoid mutual shielding of ultraviolet rays. Close chamber door securely and power‑on main‑unit.
2. Program Parameter Configuration Set target cavity‑temperature and total test runtime via control panel. Select whether to activate UV‑illumination according to test‑objective: anti‑yellowing test turns on UV‑lamp; pure thermal‑ageing test only enables heating‑circulation function. Confirm timer memory function is activated.
3. Execute Anti‑Yellowing / Thermal‑Ageing Test Initiate test‑sequence. Turntable rotates continuously; UV‑irradiation and hot‑air heating run according to setup. Equipment automatically stops and triggers buzzer reminder after completing preset runtime.
4. Specimen Retrieval & Performance Assessment Wait inner‑cavity temperature falls close to ambient level before opening door. Take‑out test‑pieces. Evaluate yellowing grade, discoloration and surface‑degradation with grey‑scale card or color‑measuring instrument. Document observations for QC‑reports. Multiple replicate‑specimen tests are recommended for statistically‑valid evaluation conclusion.
5. Post‑Test Tidying Clear sample debris inside cavity. Check lamp surface for dust contamination. Reset timing‑temperature parameters. Shut‑down main‑power for long‑term idle‑storage. Periodically inspect turntable transmission‑smoothness and UV‑lamp ageing‑condition.

Wide Industrial Application Scenarios

Footwear & Leather‑Goods Manufacturing Enterprises

Anti‑yellowing performance QC‑inspection for shoe‑upper, mid‑sole, leather and light‑coloured synthetic‑leather raw‑materials; screen suitable anti‑yellow‑agent formulation for new‑product development.

Plastic‑Rubber & Adhesive Manufacturers

Light‑induced discoloration assessment for light‑coloured plastic parts, vulcanised rubber and adhesive products; compare thermal‑ageing deterioration of different polymer‑recipes.

Paint, Resin & Coating Factories

Appearance‑stability evaluation for white / light‑tint paint film and decorative coating under UV‑heat combined‑stress environment.

Cosmetics & Packaging‑Material Producers

Aging‑resistance verification for cosmetic‑container, printing‑packaging and decorative‑film materials.

Third‑Party Accredited‑Material‑Testing‑Organizations

Conduct formal anti‑yellowing and thermal‑ageing assessment and generate inspection‑documents for product‑certification‑audits.

Standard Factory‑Full‑Delivery Kit

1. KR‑305 anti‑yellowing aging test chamber main floor‑standing host‑unit (select inner‑chamber‑size)
2. Φ450 mm rotary specimen‑turntable assembly
3. 300 W original UV‑lamp set
4. Integrated temperature‑timing control‑panel
5. Power‑supply connecting‑cable
6. Multilingual printed‑operation‑manual complying with HG‑ASTM‑JIS‑relevant‑test‑specifications
7. Factory‑issued performance‑inspection‑certificate

Optional spare‑parts & custom‑options: extra replacement UV‑lamps, non‑standard inner‑chamber dimension customisation, overseas‑market custom‑voltage adaptation.

Global Distributor & After‑Sales‑Support

We provide remote‑one‑on‑one operational guidance covering temperature‑timing‑setting, lamp‑replacement steps and daily cabinet‑maintenance. Spare‑parts stock includes UV‑lamps, rotating‑tray components and electrical‑accessories. 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‑305 Anti‑Yellowing Aging Test Chamber | HG/T3689‑ASTM‑D1148‑Compliant UV‑Heat‑Combined‑Polymer‑Footwear‑Leather‑Colour‑Stability‑QC‑Testing‑Instrument

Core‑Feature‑Labels‑For‑Product‑Images

HG/T3689‑ASTM‑D1148‑JIS‑P8127‑Compliant,Anti‑Yellowing‑Aging‑Test‑Chamber,300W‑UV‑Light‑Source,Φ450mm‑Rotating‑Sample‑Turntable,RT‑200℃‑Hot‑Air‑Circulation‑Temp‑Control,0‑999H‑Power‑Off‑Memory‑Timer,Buzzer‑Completion‑Alarm,SUS304‑Stainless‑Steel‑Inner‑Chamber,Over‑Temperature‑Over‑Current‑Multi‑Safety‑Protection,Mobile‑Brake‑Casters,Footwear‑Rubber‑Plastic‑Coating‑Leather‑UV‑Induced‑Yellowing‑Thermal‑Aging‑Performance‑Evaluation

Safety‑Operation‑Reminder

Avoid direct eye‑and‑skin exposure to ultraviolet radiation when chamber door is open with UV‑lamp working. Reliable equipment‑grounding must be completed before power‑on. Do not open chamber‑door during high‑temperature running‑phase to prevent scald injury. Replace UV‑lamp strictly following official‑maintenance‑procedure. Periodically inspect rotating‑tray transmission‑condition.