Low Temperature Brittleness Tester
Low Temperature Brittleness Tester suppliers
Low Temperature Brittleness Tester factory

Low Temperature Brittleness Tester

The Low Temperature Brittleness Tester determines the impact brittleness behavior of vulcanized rubber and plastics after low-temperature conditioning. It is used in compound development, low-temperature material selection, cable and rubber-product qualification, and laboratory comparison of fracture thresholds.

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Product Introduction

Product Overview

Core Advantages

Three Test Configurations for Different Specimens

The ZY-1006 is available for rubber single-specimen testing, rubber multi-specimen testing, or plastic brittleness testing. Each configuration uses the required specimen holder, impact distance, and sample quantity, avoiding fixture substitutions that change the applied impact condition.

Cooling to -70°C without Circulating Water

Cascade refrigeration cools from 0°C to -30°C at 1.2°C/min, from -30°C to -40°C at 1.0°C/min, and from -40°C to -70°C at 0.7°C/min. Once the setpoint is reached, fluctuation remains below ±0.5°C for cold conditioning and impact testing.

Defined Impact Speed at the Test Temperature

The impact mechanism operates at 2.0 ± 0.2 m/s in a 160 x 140 x 100 mm working chamber. Applying the same impact speed after the specified conditioning period makes fracture observations comparable across formulations and production batches.

Customization Capabilities

Non-standard holders and clamps can be produced from specimen drawings for cable, rubber, or plastic parts. Working-chamber dimensions and sample capacity can be adjusted to the planned batch layout. Controller language and power supply can be matched to the laboratory.

Quality Control

Impact speed, head radius, impact travel, and holder dimensions are checked against the selected configuration. The refrigeration system is run to the lower setpoint, where temperature fluctuation and recovery after sample loading are recorded. Each unit then completes a functional impact sequence to verify release, counter operation, and fixture alignment before shipment.

Technical Parameters

Item	Rubber Single Sample (GB1681)	Rubber Multi Sample (GB15256)	Plastic Brittleness (GB5470)
Standard	GB/T 1682-2014	GB/T 15256-2014	GB/T 5470-2008
Test Temperature	-70°C	-70°C	-70°C
Cooling Rate	0→-30°C: 1.2°C/min; -30→-40°C: 1.0°C/min; -40→-70°C: 0.7°C/min	Same	Same
Impact Speed	2 m/s ± 0.2 m/s	2 m/s ± 0.2 m/s	2 m/s ± 0.2 m/s
Temperature Fluctuation	< ±0.5°C	< ±0.5°C	< ±0.5°C
Impact Distance	11 ± 0.5 mm	8 ± 0.3 mm	8 ± 0.3 mm
Impact Head Radius	1.6 ± 0.1 mm	1.6 ± 0.1 mm	1.6 ± 0.1 mm
Working Chamber Size	160 × 140 × 100 mm	160 × 140 × 100 mm	160 × 140 × 100 mm
Exterior Size	900 × 505 × 950 mm	900 × 505 × 950 mm	900 × 505 × 950 mm
Power	2000 W	2500 W	2000 W
Sample Quantity	1 piece	5 pieces	Type A: 15 / Type B: 5
Sample Size	25 × 6 × 2 mm	Type A: 26–40 × 6 ±1 × 2 ±0.2 mm; Type B: see drawing	Type A: 20 × 2.5 × 2 mm; Type B: 31.75 × 6.35 × 1.91 mm