HTH-225   schmidt hammer manual concrete test hammer

Brief introduction:

The test hammer submit to standard of GB/T9138-1988 and JJG817-93 and JGJ/T23-2001. HTH-225 concrete test hammer is applied to test the compressive strength of building concrete components, bridge and so on.

Trait:

1)Center rod is made from imported material, high accuracy and durable resistance.

2)The shell is made form high Aluminum or high polymer material in order to perfect protect instrument from damage and extend use life.

3)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.

Parameter

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: 25mm±1mm

Average rebound value on steel anvil Rm: 80±2

Size: Φ54*278mm

Weight: ≈1KG

HTH-225 A same as HTH-225, just added spare parts: Strike tension spring and screw driver.