Dynadrill equipment produces reliable high performance dth hammer and button bits. Dynadrill is manufacturing 6 sizes of hammer and mating button bits.
Dynadrill prithvi 30 for drilling 3 1/2" to 4" in hard rock and 5" to 6" in over burden drilling.
Dynadrill prithvi 40 for drilling 4.1/8" to 5" in hard rock and 6" to 7" in over burden drilling.
Dynadrill prithvi 60 / 65 for drilling 6" to 6.1/2" in hard rock and 8" to 9" in over burden drilling.
Dynadrill prithvi 80 for drilling 8" to 8.1/2" in hard rock and 10" to 12" in over burden drilling.
Dynadrill prithvi 100 for drilling 10" to 10.1/2" in hard rock and 12" to 14" in over burden drilling.
Dynadrill prithvi 120 for drilling 12" to 12.1/2" in hard rock and 13" to 17.1/2" in over burden drilling.
Salient features of dynadrill dth hammer are as follows: