Down the hole hammers and DTH drill bits  ( DTH bits )

 Produced from premium quality nickel-alloy steel for increased durability and wear characteristics, specific heat treatment standards and special "stress relief" processes ensure consistent performance bit after bit!

 (1) Size: 90mm-305 mm with flat face, concave design fit for the atlas copco and ingersoll-rand model etc.

(2) DTH Hammer: IR hammer, DHD3.5, DHD340, DHD350, DHD360, DHD380, COP32,  COP44,

                          COP54,   COP64, COP84, XL3, QL40, QL50, QL60, QL80, and low pressure hammers CIR65a, CIR90, CIR110, CIR150, CIR170 etc.

(3) Package: In laminated board case

(4) Productivity: 5,000pcs/month 1500pcs/week

eccentric casing system (ODEX) with three pieces

ODEX include guide devoice, polit bit,reamer,casing shoe,locking kit

Outer dia of casing tube is 108-273mm

Inner dia of casing tube is 93-99mm---251-257mm 

Reaner dia 118mm- 300mm

Min Inner dia od casing shoe 86-241mm

Drill pipes 76-127

 eccentric casing system (ODEX) with two pieces

tOuter dia of casing tube is 178-323mm

Inner dia of casing tube is 159-165mm---299-303mm 

Reaner dia 188mm- 360mm

Min Inner dia od casing shoe 144-284mm

Drill pipes 76,89-127

 Concentric casing system

A Discharge head B drill rod C guide sleeve D DTH hammer E Casing tube F Pilot bit

G casing shoe H ring bit

Application Range

It is recommended to drill in rock formation where contains some ovals and fractures

Design Principles

The stable and reliable working performance and the less vibration of drill rig

Different structures

Concentric system with ring bits ,with wings and with blocks