Feature

●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.
●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.
●The product is more accuracy, good quality, and best price and longer use life.
●The product is more accuracy, good quality, and best price and longer use life.


Description

Notice : The meter is Polymer material shell

Brief introduction:
The test hammer submit to standard of GB/T9138-1988 and JJG817-93 and JGJ/T23-2011 and ASTM C 805. HT-225B concrete test hammer is applied to test the compressive strength of building concrete components, bridge and so on.
Technical Specifications
Test range: 10~60Mpa
Standard impact energy: 2.207J
Stroke of rebound hammer: 75mm
Friction of pointer slider: 0.5N~0.8N
Sphere radius of rebound pole SR: 25mm±1mm
Average rebound value on steel anvil Rm: 80±2
Size: Φ54*278mm
Weight: ?1KG