Product Introduction

Core Competitive Advantages

1. Wide & Ultra-Stable Refrigeration Range
   Integrated compressor refrigeration system delivers adjustable temperature from 0℃ down to -70℃. High-efficiency copper heat exchange coils enable uniform cooling inside the bath; temperature fluctuation is controlled within ±0.5℃ during the 3-minute constant-temperature holding phase, eliminating uneven cold distribution that distorts test results.

   2.Standardized High-Speed Impact Mechanism

   Pneumatic-driven impact hammer hits specimens at a fixed linear velocity of 2m/s ±0.2m/s. Two interchange striking heads are supplied: R1.5mm single-sample punch and R1.6mm multi-specimen punch, fully matching dimension requirements of international brittleness test norms to guarantee consistent impact energy on every test strip.

   3.Multi-Station Combined Specimen Fixture

   Dual-purpose clamping assembly supports single-sample and five-parallel multi-sample testing modes simultaneously. Precise positioning lock fixes specimens vertically without bending or slippage during long cold soaking, greatly boosting batch testing efficiency for laboratory daily QC work.

   4..Dual Digital PID Intelligent Control Panel

   Separate high-precision digital displays independently monitor bath temperature and cold soaking countdown timer. Operators freely set target cooling temperature and holding duration via simple button operations; the system maintains constant temperature automatically without frequent manual adjustment.

   5.Compact Mobile Integrated Frame

   All-in-one split structure combining refrigeration unit and test bath, equipped with universal silent casters for easy movement between workstations. Fully enclosed cooling bath prevents cold medium volatilization; all metal contact parts adopt anti-corrosion treatment for long-term stable use with industrial ethanol coolant.

   6.Complete Safety Protection Layout

   Top red emergency stop button instantly cuts impact action in abnormal conditions; sealed bath cover avoids direct contact with ultra-low temperature liquid to prevent frostbite hazards. Ventilated heat dissipation cabinet protects compressor from overheating during continuous all-day testing.

Standard Full Test Operating Steps

1. Pre-Equipment Preparation
   Fill the cooling bath with industrial ethanol coolant to the specified liquid level; power on the machine and set target test temperature on the dual PID control panel, wait until the bath reaches stable set value.
2. Specimen Clamping
   Cut raw materials into standard rectangular test strips, mount samples vertically onto the multi-station fixture, tighten positioning bolts to avoid deformation or falling off during cold soaking.
3. Constant Temperature Soaking
   Close the bath insulation cover, activate the countdown timer to hold specimens for 3.0±0.5 minutes under fixed ultra-low temperature, ensuring uniform internal cooling of each test piece.
4. Standard Impact Test
   After soaking finishes, trigger the pneumatic impact hammer to strike each specimen once only. Take out samples and inspect surface cracks, fractures or complete breakage after 180° bending observation.
5. Brittle Point Calibration
   Adjust bath temperature up/down in 1℃ increments for repeated batch testing, record the threshold temperature where at least half of test specimens generate visible impact cracks as the material’s brittleness temperature.
6. Post-Test Maintenance
   Power off the refrigeration system after testing, wipe residual coolant from fixtures and bath inner wall, cover the equipment to avoid dust accumulation for long service life.

Applicable Materials & Industrial Application Fields

Automotive Rubber & Plastic Parts

Outdoor & Consumer Flexible Goods

Industrial & Electronic Polymers

Research & Third-Party Testing Institutes

Global After-Sales & Distributor Cooperation Policy

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