Description

The relaxation testing machine is mainly used to test the tensile relaxation strength of steel wire and other metal wire & cables. It’s a new type testing equipment for modern construction industry.

Features

The main machine is of four column or two column rigidness frame structure, it has horizontal or vertical type, the screw rod adjust the puller to move, the loading speed regulation is stepless.

It adopts full-digits close-loop computer servo control, using the Panasonic servo motor & driver, combine with the high precision sensor, achieves high precision, wide range, multifunction servo control.

It can measure the test piece deformation within the scale distance directly, which can avoid the effect of chuck slip to achieve high test precision.

The horizontal steel wire relaxation testing machine uses computer technology to preset various kinds of parameters, automatic measuring, control, data processing, draw kinds of curves and print report. The testing software can estimate the relaxation rate within 1000 hours.

Specifications

Model	GRT-300	GRT-500	GRT-300W	GRT-500W
Max loading force(KN)	300	500	300	500
Test Force accuracy	±1%	±1%	±1%	±1%
Test force measuring range	2%~100% of F.S	2%~100% of F.S	2%~100% of F.S	2%~100% of F.S
Deformation Measuring  range(mm)	0~10	0~10	0~10	0~10
Deformation  measuring accuracy	±0.5%	±0.5%	±0.5%	±0.5%
Extensometer  scale distance(mm)	600	600	600	600
Stretch  max travel(mm)	0~200	0~200	0~200	0~200
Drawing  speed(mm/min)	0.01~50	0.01~50	0.01~50	0.01~50
Stretch  space (mm)	800~1000	800~1000	800~2300	800~2300
Main  machine structure	Vertical	Vertical	Horizontal	Horizontal
Power  supply power(KW)	4.5	7.5	4.5	7.5
Main   machine overall size(mm)	950×750×2850	1100×980×3400	2100×850×1400	2100×900×1600

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