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2022 China New Design Button Bits Rock Drilling - Concentric Casing System With Ring Bit – Spark Featured Image
  • 2022 China New Design Button Bits Rock Drilling - Concentric Casing System With Ring Bit – Spark

2022 China New Design Button Bits Rock Drilling - Concentric Casing System With Ring Bit – Spark

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We've got quite possibly the most state-of-the-art production gear, experienced and qualified engineers and workers, acknowledged top quality handle systems along with a friendly expert gross sales group pre/after-sales support for Groundwater Drilling, Rock Drill Shank, Dth Hammer Quotes, Our professional technical team will be wholeheartedly at your service. We sincerely welcome you to visit our website and company and send us your inquiry.
2022 China New Design Button Bits Rock Drilling - Concentric Casing System With Ring Bit – Spark Detail:

Application

Applied to over burden formation with complex topographic and geological conditions, such as gravel, fissured formation, boulder, landfill of construction etc.

Specification

  D   h H C G    
Specification O. D. of Casing Tube (mm) I.D. of Casing Tube(mm) Wall thickness of casing (mm) Max. O.D. of pilot bit (mm) Ring Bit O.D. (mm) Max. O.D. of Normal Bit (mm) Hammer Type Weight(kg)
TOP hammer type
P76/7-39 76 62 7 57 88 39 R32 3.2
P89/8-58 89 73 8 70 100 58 T38 5.8
P114/9-84 114 94 10 92 126 84 T45 7.5
P127/10-93 127 107 10 105 142 93 T45 10
P140/10-97 140 120 10 116 161 97 T45,T51 15
DTH hammer type
P114/9-84 114 94 10 94 126 84 COP34/COP32/DHD3.5 12
P127/10-93 127 107 10 105 142 93 COP34/COP32/DHD3.5 16
P140/10-97 140 120 10 116 161 97 COP44/DHD340/M40/SD4/QL40 21
P146/10-110 146 126 10 124 165 110 22
P168/12.7-127 168 142.6 12.7 141 188 127 COP54/DHD350/M50/SD5/QL50  27
P178/12.7-131 178 152.6 12.7 150 196 131 32.5
P194/12.7-145 194 168.6 12.7 166 214 145 COP64/DHD360/M60/SD6/QL60 42.5
P219/12.7-170 219 193.6 12.7 191 243 170 58
P245/12.7-195 245 219.6 12.7 214 268 195 DHD380/COP84/SD8/QL80 78
P254/12.7-203 254 228.6 12.7 224 276 203 84.5
P273/12.7-223 273 247.6 12.7 241 305 223 100
P325/12.7-276 325 299.6 12.7 292 350 276 135
P406/12.7-350 406 380.6 12.7 377 442 350 DHD112/QL120/SD12/N120 280
P508/12.7-416 508 482.6 12.7 478 545 416 522
P560/12.7-475 560 534.6 12.7 528 595 475 NUMA180SD18/Numa180/TH18/TS18/TK18 620
P610/12.7-513551 610 584.6 12.7 558 645 513 NUMA180 710

Operation Schematic Figure

Concentric casing - 1
Concentric casing - 2
Concentric casing - 3

Step1: The drilling in over burden formation is finished.

Step2: Reverse rotation of the hammer and pull the pilot bit out from the hole.

Step3: Replace the pilot bit with normal bit to continue drilling down.

Product Details

Concentric casing - 4
Concentric casing - 5

Product detail pictures:

2022 China New Design Button Bits Rock Drilling - Concentric Casing System With Ring Bit – Spark detail pictures

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We've got quite possibly the most state-of-the-art production gear, experienced and qualified engineers and workers, acknowledged top quality handle systems along with a friendly expert gross sales group pre/after-sales support for 2022 China New Design Button Bits Rock Drilling - Concentric Casing System With Ring Bit – Spark , The product will supply to all over the world, such as: Greek, Sevilla, Hungary, Customer satisfaction is our goal. We are looking forward to cooperating with you and providing our best services to suit your needs. We warmly welcome you to contact us and make sure you feel free to contact us. Browse our online showroom to see what we can do for you. And then E-mail us your specs or inquiries today.
    • In China, we have purchased many times, this time is the most successful and most satisfactory, a sincere and realiable Chinese manufacturer!
    5 Stars By Laurel from Bandung - 2018.11.02 11:11
    The company can keep up with the changes in this industry market, product updates fast and the price is cheap, this is our second cooperation, it's good.
    5 Stars By Carol from Puerto Rico - 2018.08.12 12:27
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