Testing Low Temperature Stiffness of Vulcanized and Thermoplastic Rubbers | GEHMAN STIFFNESS TESTER / No.145-G

Overview of GEHMAN STIFFNESS TESTER

This tester is used to determine the relative stiffness characteristics of vulcanized or thermoplastic rubber.
The tester will record the torsion angle of the test specimen 10 seconds later for which has been twisted to an angle of 180 degrees.
This procedure is to be done from 23 °C to the lowest test temperature of the test, so that the temperature (T2, T5, T10, and T100) of which the modulus values are at 2, 5, 10, and 100 can be obtained from the Temp. – Angle curve.

Reference Standards

JIS K6261、ISO 1432

Operation & Motion VIDEO

Specification

Specifications are subject to change without notice.
Hangings	4 Hangings
Specimen	L40.0 ± 2.5 mm, W3.0 ± 0.2 mm, T2.0 ± 0.2 mm
Torsion Wire	L: 65 ± 8 mm, Torsional Constant: 2.81 mN⋅m/rad (Standard Wire) 0.70 m N.m/rad,11,24 m N.m/rad
Chuck Distance	25 ± 3 mm
Torsion Angle Measurement	Rotary Encoder, Detection: 0.1°
Temperature Range	-70 to 30 °C (Refrigerator & Refrigeration Medium)
Refrigertion Medium Amount	Approx.8 L
Temperature Rise	5 °C interval (Condition Controlling Time: 5 min)
Software	Windows Compatible
Accessories	Specimen Setting Jig,Torsion Wire Jig: 1 pc each
Power Source	AC 200 V, 3-Phase, 20 A, 50/60 Hz
Dimensions/ Weight (Approx.)	W720 × D950 × H1,900 mm, 270 kg