bellows/spring fatigue testing equipment

Purpose
1.This tester is a new generation of fatigue testing machine, specially designed for low cycle and high cycle fatigue testing of spring & bellows.
2.The computer controlled electro-hydraulic servo bellows fatigue testing machine is mainly used in large-scale precision spiral spring, disk spring, annular corrugated hose, widely used in flexible piping enterprises and spring factories.
3. Electro-hydraulic servo bellows fatigue testing machine consisted of one set host ( overhead type 50KN servo linear actuator ), constant pressure servo pump station ( flow 40L/min, system pressure 21MPa),hydraulic chuck, hydraulic drive module, full digital single channel servo controller, computer and printer.
Technical Specification
ModelPWS-50/100/200/2000
Max. dynamic Test force±50KN/100KN/200KN/2000KN
Dynamic fluctuation degreeNo more than ±0.5%
Maximum distance of actuator±75mm ( can be customized)
Indication Accuracy: ±0.5%
Frequency range0.01-100Hz
Displacement measuring accuracy±0.5% of indication value
Displacement measuring resolution0.01mm
Counter999 999 999 can be preset
Control methodLoad control; displacement control
Main test waveformSine wave; triangular wave; square wave;oblique wave; and external input wave
Maximum test space800mm ( not include clamp )
Distance between two columns600mm
Host stiffness1.7*108N/mm.
Host dimensionAbout 1000*710*2800mm
Working pressure21MPa
Constant pressure servo pump station specificationFlow 40L/min; 21MPa; motor power 22KW; 1450r/min
ClampSpecial fixture for corrugated pipe
Power supplyAC380V
Host WeightAbout 1200kg