Shank Adapter,Drill rod,DTH hammer and bits,Tophammer bit,Casing pipe,Tricone bit,Core bit.

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JESSIN ROCK DRILL CO.,LIMITED
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DTH  Bits

(1) Made of premium quality nickel-alloy steel 23CrNi3MoA for increased durability and wear characteristics, and YK 05 tungsten carbide as same grade as internationally well-known T6 brand.
(2) Apply "hot (thermal) -insertion" processing procedure to insert the buttons as same as internationally well-known brand,
(3) Entire CNC processing procedure ensure the quality consistency and reliable.
(4) Military grade requirements of heat-treatment guarantee durability, Specific heat treatment standards and special “stress relief” processes ensure consistent performance.
(5) Designed for maximum performance and hole cleaning ability and high penetration rate.Our bits are interchangeable with Atlas Copco’s COP32 34 44 54 64 84, Ingersoll-Rand ‘s DHD3.5,DHD3.5HD, DHD 340A , DHD350R, DHD 360, Mission60, DHD380 QL40, QL50 , QL60, QL80.SD10, NUMA100, NUMA120,ect.
(6) Matching the insert to the job requirements is essential in achieving the desired results. Each of the following buttons is ideal for different ground conditions, abrasion levels, PSIs and penetration levels. In general, the larger the number of gauge buttons the better overall performance, especially in hard rock.
(7)  Specification of dth hammer button bits:Diameter: (mm)1-2 inch low air  pressure DTH bits Shank: BR1, BR2, DHD2.5   57/64/70/76/80/82/90mm
(8) 3 inch high Air pressure DHT bits Shank: BR3,DHD3.5,COP34,COP32,QL30,M30,IR3.5 85 / 90 / 95 / 100 / 105/110mm
(9) 4 inch high Air pressure DHT bits Shank:DHD340,COP44,M40,SD4,QL40 105 / 110 / 115 / 120 / 127/130mm
(10) 5 inch high Air pressure DHT bits Shank:DHD350,COP54,M50,SD5,QL50 133 / 140 / 146 / 152 / 165mm
(11) 6 inch high Air pressure DHT bits Shank:DHD360,M60,SD6,QL60,COP64 152 / 165 / 178 / 190 / 203mm
(12) 8 inch high Air pressure DHT bits Shank:DHD380,COP84,M80,SD8,QL80 195 / 203 / 216 / 254 / 305mm
(13) 10 inch high Air pressure DTH bits  Shank:SD10, NUMA100 254/270/279/295/305mm
(14) 12 inch high Air pressure DTH bits Shank:SD12,DHD1120,NUMA120,NUMA125 305/330/343/356/368/381mm
(15) 15 inch high Air pressure DTH bits Shank: DHD1150, SD15,NUMA125 381/391/435/457/483/503mm
(16) Over 20 inch high Air Pressure DTH bits Shank: NUMA180,NUMA240,483/508/560/578/610/660mm

 

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Search Key: COP44,DHD44,SD4, QL40, Mission40
Tel: +86-(0)731-85778491 Fax: +86-(0)731-85778492
Mobile:+86-15364024561 E-mail: jessinhammer@163.com