Piston--Use the high nickel alloy steel,with advanced heat treatment process.Then strengthening processing on hammer surface for high wear-resistance to so that achieve long service life.
All of the Teamwhole DTH hammer are designed under real platform testing,then will know what's the frequency and impact power the DTH hammer transfer to DTH bits,Ddvanced CNC machine ensure DTH hammer every parts smooth srface,ewer parts and easier maintenance. So for greater productivity, extrax-short structure,that's mean can ensure DTH hammer increase efficiency, more power, and faster penetration.
Changsha Tianhe Drilling(Brand-TEAMWHOLE) -As a top manufacturer for Rock drilling tools in China,we offer
1.DTH hammers and bits(3inch-32inch)--Shank with DHD, COP, QL, SD, Mission, MACH and NUMA etc
2.Concentric and eccentric casing system ,
3.RC hammers and bits&RC rods,
4.Button bits,shank adapter,coupling sleeve ,
5.Drill rig&drill rods,shock absorbers.
Wide range of drilling products which cover all of DTH hole drilling,like for mininig,quarry blasting hole borehole drilling, water well,depep hole well,oil and gas open hole drilling, foundation and piling drilling,borehole drilling.
3.5inch DTH hammer is most widely used size for all kinds of drilling, the specification as follow,
|Model||Thread||Quter dia.(mm)||Rec.hole size(mm)||Shank style||Foot valve||Length (mm)||Weight (kg)||Working pressure(bar)|
|TH35||API2 3/8" Reg pin||80||90-105||DHD3.5||with||863||22||14-24|
3.5"DTH HAMMER Structure
|1||TOP SUB(Can insert carbides)|
|2||TOP SUB RING|
|6||AIR DISTRIBUTING SEAT|
|10||BUSH DRIVE SUB|
|12||BIT REATINER RING|
|Length without bit||Weight||Outer diameter||Matched bit shank||Rec.bit range|
|maximum pressure||Impact frequency||Recommend rotation||Air consumption||Thread connection|
|2.0Mpa||30HZ /15Bar||30-60r/min||73/min in 15bar||API 2 3/8|
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