Ring Stiffness Tester – QualiRST-Series Features

• Ultra-High Rigidity Frame
  Built with a gantry-style ultra-rigid frame, this tester features a wide speed control range, a sealed vertical axis bracket, and high-precision, gap-free ball bearings. These elements ensure exceptional accuracy and stability.
• Advanced Servo System
  Equipped with a closed-loop AC servo system for precise, maintenance-free operation. An imported reducer and ball screw enhance control accuracy and stability. The high-speed, high-resolution AD sampling circuit prevents data loss, while a piecewise linear correction method ensures consistent force measurement accuracy.
• Enhanced Sensor Design
  A multi-sensor bridging structure increases resistance to deflection in large pipes, minimizing the risk of sensor damage and improving measurement reliability.
• Inner Diameter Measuring System
  The innovative pull-wire inner diameter measurement system eliminates intermediate links, simplifying sample installation and delivering highly accurate measurements of inner diameter changes.
• Powerful Software Capabilities
  The PC-based control software offers an intuitive interface for managing creep ratio test curves, test process control, real-time monitoring, data analysis, and report generation. An unequal-distance regression algorithm automates the standard-compliant loading process with a high success rate, significantly reducing testing complexity. The refined static constant load algorithm ensures rapid loading and stable force application.
• Comprehensive Safety Protections
  Features built-in overload, overcurrent, overvoltage, and overtemperature protection. Additional mechanical, electrical, and software-based safety mechanisms ensure secure and reliable operation.

Ring Stiffness Tester – QualiRST-Series

Ring Stiffness Tester – QualiRST-Series is designed to measure the ring stiffness of thermoplastic pipes with a circular cross-section. It also supports flat testing and ring flexibility testing. It meets testing standards for PE double-wall corrugated pipes, winding pipes, and various plastic pipes. Additionally, it features an extended creep ratio test function, allowing for the evaluation of large-diameter buried plastic pipes by simulating long-term stiffness reduction under deep burial conditions. This series has received CE certification for compliance with EU product standards.