Description
Down the hole rock tools (drilling tools) are rock drilling
equipment which takes compressed air as power source to partially
transfer impact power into drilling holes. An air distributing
device in a top hammer controls a piston to move back and forth. An
impact device arranged in the front of the top hammer transfers the
impact powderto a down-the-hole bit to crush rocks.
When percussion or hammer drilling the percussion mechanism is
called a DTH or down the hole hammer. This drilling tool is located
directly above the down hole hammer bit. The driller transfers
weight to the bit through the drill pipe as well as provides some
rotation. Through the use of a compressor, the pressurized air is
forced to the down hole hammer. As the drilled hole gets deeper the
driller adds more drill pipe to the string. The piston strikes the
impact zone of the hammer bit; hammers are always used as part of a
casing advancement system and can be used in reverse circulation
applications. DTH hammers are common when drilling blast holes and
water wells.
Suitable choice of raw material, advanced processing technology and
perfect quality warranty.
With hardened treatment, drilling life can be extended and then
cost can be reduced.
Size range 4.5’’,5”,5.5 ’’ etc.
Shank styles: NRC45,NRC55,NRC65,PR52
Applications
Our DTH hammer are widely applied to open pit and underground
mining to drill blasting holes, drainage holes, ventilation holes,
center holes or blasting holes of raising boring, pipe holes and
other deep holesin all various strength rocks, such as quarry
exploitation, earthwork projects, water-well, constructionsand so
on.
Feature Advantage
1. Price commitment: in order to ensure the high reliability of
products, raw material selection are using grapefruit brand
products; under the same competitive conditions,and not to reduce
product technical performance on the basis of sincerity at a
favorable price to customers.
2. Quality commitment: product manufacturing and testing have
quality records and inspection data; the performance of the product
can withstand customer inspection.
3. Customer service: in order to create new diamond brand, enhance
the visibility of enterprises, establish corporate image, we serve
customers with the principle of "preferential prices, good service,
reliable product quality" principle.
