HT-225B Portable Schmidt Hammer Concrete Rebound Test Hammer Concrete Test Hammer High Polymer Material Shell Resiliometer Hot Center rod is made from imported material, high accuracy and durable resistance. The shell is made form high Aluminum or high polymer material in order to perfect protect instrument from damage and extend use life. The outer shell of the instrument uses a polymer composite material with excellent impact strength. This material is widely used in aviation, construction, machinery and other fields because of its excellent impact strength, creep resistance, heat resistance, cold resistance and electrical insulation. Jinwei used it in the shell of the rebounder to achieve a low-carbon and efficient concrete inspection tool. Pointer slider is outside structure, its friction can be balance well and easy to be adjusted so that we can make sure that the instrument is accurate. Compared with other suppliers in the line of business, the product is more accuracy, good quality, and best price and longer use life. Test range: 10~60Mpa Standard impact energy: 2.207J(0.225Kgf.m) Stroke of rebound hammer: 75mm Friction of pointer slider: 0.5N~0.8N Sphere radius of rebound pole SR: 25mm1mm Average rebound value on steel anvil Rm: 802 Size: 54*278mm Weight: 2.5KG 1* Concrete Rebound Tester