We are manufacturing Automatic SPT Hammer in india

Contact Us :
Mr Amit Rajput :
Mob No : (+91) 7600898210
Website : [ Ссылка ]

Automatic SPT Hammer driven into the ground at the bottom of a borehole by blows from a slide hammer with a mass of 63.5 kg (140 lb) falling through a distance of 760 mm (30 in).

The sample tube is driven 150 mm into the ground and then the number of blows needed for the tube to penetrate each 150 mm (6 in) up to a depth of 450 mm (18 in) is recorded.

The sum of the number of blows required for the second and third 6 inches of penetration is termed the "standard penetration resistance" or the "N-value". In cases where 50 blows are insufficient to advance it through a 150 mm (6 in) interval the penetration after 50 blows is recorded.

The blow count provides an indication of the density of the ground, and it is used in many empirical geotechnical engineering formulae.

Standard penetration test Automatic Hammer manufacturer
SPT Auto Hammer manufacturers
RDS Auto SPT
RDS Best Automatic Hammer manufacturer
Automatic SPT sample
geo technical investigation machine

свернуть