1.Type:HT-225 concrete test hammer
2.Standard impact energy:2.207+-0.1J (0.225Kgf.m)
3.The static friction of pointer slider:0.65N+-0.15N
4.Length of spring stretch:75±0.3mm
5.Measuring Range:10~60Mpa
6.Radius of spherical tip:25mm±1mm
7.Working Temperature:-10 C- +50 C
8.Working Humidity:<=90%RH
1.Center rod is made from imported material
2.High Aluminum case 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
4.High accuracy and durable resistance
