The instrument is suitable for the detection with elongation of petroleum asphalt and coal-tar pitch, it is also suitable for the elastic recovery test of asphalt.
Applicable standards:GB/T4508, JTJ/T0605, JTJ/T0662, ASTM D113
Basic structure: the instrument is composed of tensile driving mechanism, automatic temperature control system, constant temperature water tank, circulating water pump and electric device.

1.The constant temperature water tank is separated from the water tank, and the water temperature in the water tank is more uniform by using inner and outer circulation;
2.Refrigeration system adopts imported compressor, refrigeration fast, reliable performance, low noise;
3.By using the method of thermal equilibrium, the temperature control is more accurate;
4.Advanced intelligent digital temperature control automatic temperature control, accurate measurement, and temperature correction;
5.Water tank, rack are made of stainless steel, corrosion resistance;
6.Using stainless steel wire rod and linear sliding block, the transmission is more stable;
7.External wire rod, smooth transmission, clear observation;
8.The speed of drawing is stepless speed regulation with imported frequency speed regulator.

1.Stretch length: 1.5m, 2m
2.Temperature control range: 4 ~ 50℃
3.Precision temperature control: sample static water bath can maintain the test temperature is not higher than 0.1℃, tensile test can maintain the temperature change of not more than 0.5℃
4.Stretching speed: 0 ~ 50mm/min adjustable
5.Extension displayed value: 1 mm units
6.Input power requirements: 50HZ 220V+/-10%
7.Equipment total power: 4.6KW
8.Input wire diameter: must be greater than or equal to 4mm
9.Grounding must be reliable
10.Working environment temperature: -10℃ ~ +50℃
11.Relative humidity <90%, no condensation.
12.Elevation <2500M
13.Vibration <20HZ:9.8 m/s2(1G) MAX:20~50H:5.88 m/s2 (0.6G) max
14.Storage temperature: -20℃ ~ +60℃