8" DTH Hammer - VD80D x 177

8" High Pressure DTH Hammer - VD80D x 177

The VD80D x 177 is an 8 inch high pressure down the hole hammer built by Vikay Mining Equipments in India. It shares the 177 mm outer diameter and 4 1/2 inch API regular pin coupler of the VD80S, but at 140 kg over 1,190 mm it is slightly shorter and lighter. Air consumption runs from 525 cfm at 150 psi to 1,550 cfm at 350 psi. Used for deep hole work in mining, quarrying, exploration and water well drilling.

Technical Details  

 Air Consumption, cmf

 Air Consumption, m3/min

VD80D x 177 DTH Hammer FAQs

Will the VD80D x 177 fit my drill string?

The VD80D x 177 uses a 4 1/2" API coupler thread, so it fits any string cut to that thread. Check the thread on the string already in use before ordering, because that is what decides it rather than the hammer size.

What hole will the VD80D x 177 drill?

The VD80D x 177 is 177 mm across, 1,190 mm long and 140 kg. It is an 8 inch hammer, so it is matched to an 8 inch hole and fitted with a bit of that size.

Which size of DTH hammer do I need?

This page is the VD80D x 177, an 8 inch hammer, 177 mm across and 140 kg. The size is the hole. Vikay manufactures 4 inch, 5 inch, 6 inch, 8 inch and 10 inch down the hammers, and the hammer is chosen to match the hole diameter being drilled, then fitted with a bit of that size. The larger hammers need proportionally more air, so the compressor on site is the practical limit on how big a hole can be drilled.

See also: VD40D x 98, VD50S x 106, VD55S x 112