Stiffness tester JJRST

ring crush (RCT)for pipesthermoplastic pipe

The JJRST series ring stiffness tester is suitable for the measurement of the ring stiffness of thermoplastic pipes with a circular cross-section, as well as for flat test and ring flexibility test. Meet the requirements of testing standards for PE double-wall corrugated pipes, winding pipes and various plastic pipes. In addition, it supports the extended creep ratio test function, which is used to measure large-diameter plastic buried pipes and simulate the decay of ring stiffness with time under long-term deep buried conditions. This series of ring stiffness testing machine has passed the CE certification of EU products. Standard GB/T 9647 GB/T 5352 GB/T 20221 GB/T 19472.1 GB/T 19472.2 GB/T 18477.3 GB/T 18477.1 GB/T 18042 GB/T 16800 GB/T 13664 ISO 9969 Features 1. Ultra-high rigidity frame The gantry-type ultra-high rigidity frame structure, wide speed control range, sealed vertical axis bracket, ultra-strong rigidity, and gapless ball bearings make the instrument high precision and good stability. 2. Server system Adopt advanced closed-loop AC servo maintenance-free control system, high precision and high reliability; imported reducer and ball screw improve control accuracy and stability. High-speed and high-resolution AD sampling circuit is used to ensure that the peak value of test data is not lost, and the method of piecewise linear correction is used to ensure the high precision and high stability of the force value detection part. 3. Sensor The bridging structure of multiple force sensors is adopted, which enhances the resistance to deflection of large pipes and reduces the probability of sensor damage.