HSSD
Can Advanced Manhole Cover Compression Testing Machine Meet Strict CJ/T 511‑2017 Compliance Needs?
JINAN, China – HST GROUP has launched its upgraded HST‑YJ1000W computer‑controlled manhole cover compression testing machine, delivering reliable load‑bearing verification aligned with CJ/T 511‑2017, the current industry standard for cast iron manhole covers. Designed for municipal quality laboratories, third‑party inspection bodies and manhole‑cover manufacturers, this Tester delivers automated compression and flexural strength evaluation for cast iron, composite and steel‑fiber concrete manhole cover specimens.
The electro‑hydraulic servo system supports Test force ranging from 20 kN up to 2000 kN, with force accuracy better than Class 1 and adjustable loading speed of 0.1‑25 kN/s. Its high‑rigidity four‑column frame and upward‑mounted loading cylinder simplify sample installation, while ball‑joint compression head guarantees full contact between specimen and pressure surface to eliminate measurement deviation. The built‑in software supports programmable cyclic loading, real‑time curve plotting including force‑time and force‑deflection graphs, automatic peak‑value capture, deformation recording and formatted test‑report printing.
Equipped with multi‑layer overload protection for force and displacement, the machine automatically stops or unloads to protect hardware and test samples. Besides CJ/T 511‑2017, it also satisfies GB/T2611 and legacy manhole‑cover specification requirements. Certified by ISO 9001 and CE, the equipment provides fast delivery within ten days and global after‑sales technical support for worldwide customers.
Quality control of manhole covers directly affects urban road safety. This manhole cover Compression Testing Machine helps users complete standardized tests to verify whether finished products satisfy regulatory requirements before delivery or site acceptance.
Jinan Hensgrand Instrument Co., Ltd.
+86-15910081986 
+86-15910081986 
4915,West jingshi Road,jinan 250012,PR CHINA. 