We produce drilling bucket, auger, kelly bar, casings tools, casing oscillators, drill bits, anchorage, strand steel, cfa, dth and other pilling tools..
(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 â??stress reliefâ?? processes ensure consistent performance.
(5) Designed for maximum performance and hole cleaning ability and high penetration rate.Our bits are interchangeable with Atlas Copcoâ??s COP32 34 44 54 64 84, Ingersoll-Rand â??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
JESSIN ROCK DRILL CO.,LIMITED, www.dthhammer-js.com
PDC drill bits use PDCs as main cutting media, with the excellent wear-ability and impact toughness of the PDC. It has a long service life, high-efficiency, and good cost performance.
PDC bit is mainly used for drilling soft and medium hard rock, and it must work under low drilling pressure, mid-low speed and big drainage.
JESSIN can supply all kinds of PDC core and non-core bits, PDC sintering matrix bits and PDC anchor bits. PDC bit can be widely used in the fields of geological exploration, coal mining, water conservancy and hydropower, construction of road and railway.
We also can design PDC bits according to customer requirements, such as different geology conditions, special strata and so on.
Features
1. Super long service life. The service life of PDC bit is as much as 4~5 times than diamond bit, at least 10 times than tungsten carbide bit.
2. High drilling speed.
3. Can be operated with low pressure and speed.
4.Has a good gage protection.
5.Used widely, more suitable for drilling in the stratum with hardness coefficient f
Model specification: DHD3.5, DHD340,DHD350,DHD360,DHD380,DHD112,
(7) Specification of dth hammer button bits:Diameter: (mm)1-2 inch low air pressure DTH Shank: BR1, BR2, DHD2.5 57/64/70/76/80/82/90mm
(8) 3 inch high Air pressure DHT Shank: BR3,DHD3.5,COP34,COP32,QL30,M30,IR3.5 85 / 90 / 95 / 100 / 105/110mm
(9) 4 inch high Air pressure DHT Shank:DHD340,COP44,M40,SD4,QL40 105 / 110 / 115 / 120 / 127/130mm
(10) 5 inch high Air pressure DHT Shank:DHD350,COP54,M50,SD5,QL50 133 / 140 / 146 / 152 / 165mm
(11) 6 inch high Air pressure DHT Shank:DHD360,M60,SD6,QL60,COP64 152 / 165 / 178 / 190 / 203mm
(12) 8 inch high Air pressure DHT Shank:DHD380,COP84,M80,SD8,QL80 195 / 203 / 216 / 254 / 305mm
(13) 10 inch high Air pressure DTH Shank:SD10, NUMA100 254/270/279/295/305mm
(14) 12 inch high Air pressure DTH 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
Top sub connection: API 2 3/8" Reg
Chuck connection configuration: IR3.5
Available bit size/mm: 90-115
Length(without bit)/mm: 888
Outside diameter/mm: 82
Net weight(without bit)/kg: 25
Impact rate : At 1.5Mpa,25HZ
Recommended rotation speed: 25-40r/min
Air consumption, CFM& (M3/min) Work Pressure
1MPa 3.8m3/min
1.5MPa 7.5m3/min
1.8MPa
2.4MPa.
Supply Atlas Copco spare parts by JESSIN ROCK DRILL CO.,LIMITED
3115132400 Diaphragm
3115145700 Side Bolt
3115147600 Seal
3115295000 Front Head
3115296500 Sleeve
3115296890 Conversion Kit
3115297300 Piston Guide
3115298800 O Ring
3115211300 Bolt
3115211301 Bolt
3115211900 Guide
3115212100 Flushing Head
3115264980 Gear
3115504000 Side Bolt
3115504300 Connect Plate
3115504310 Connect Plate
3115504312 Connect Plate
3115504501 Guide
3115505910 Segregator
3115515200 Water Pressure Plate
3115531400 Copper Sleeve
3115915091 O Ring Kit
3115915095 Seal Kit
3115915096 Seal Kit
3115915097 Seal Kit
3115915099 Seal Kit
3115915390 O Ring Kit
3115915392 Seal Kit
3115915500 Spare Part
3115915590 O Ring Kit
3115915890 Seal Kit
3115915893 Hex Repair Kit
3115914990 Seal Kit
3115916995 Seal Kit
3115916590 Seal Kit
3115916690 Seal Kit
3115916290 Seal Kit
3115916390 Seal Kit
3115901164 Seal Kit
665100012 Cup Seal
3115238200 Damping Piston
3115238500 Cup Seal
3115238600 Cup Seal
3115238700 Cup Seal
3128309734 Manipulator Arm
3128310378 Jaw
3128310422 Bushing Half
3128306383 Large Expanding Shaft
3128306256 Hose Holder
3128003155 Large Expanding Shaft
3128310598 Medium Expanding Shaft
3128310472 Small Expanding Shaft
3128309396 Expanding Shaft
3128310453 Large Expanding Shaft Copper Sleeve
3128310613 Medium Expanding Shaft Copper Sleeve
3128313405 Small Expanding Shaft Copper Sleeve
3128301389 Piston Rod End
3128302270 Drill Rod Clamp Bushing
3128008300 Holder
3128008200 Holder
3128304355 Sliding Piece
3128312307 Holder
3128312308 Holder
3128003401 Sliding Bar
3128309562 Rock Drill Base Plate
3128310520 Rock Drill Base Plate
3128003700 Rock Drill Buffer Block
3128217400 Rock Drill Protection Cover
3128216900 Bushing Segment
3128216600 Seal
3128003137 Manipulator Shaft
3128310390 Manipulator Shaft
3128309736 Manipulator Mounting Seat
3128003114 Vertical Shaft Bearing Seat
3128310398 Arm
3128001860 Front Fixed Plate
3128301306 Dr. St. Su. House
3128303921 Middle Plate
3128309793 Middle Plate
3128310734 Slag Back Plate
9111408850 Link Arm
4350265028 End Piece
4350265008 Adapter
4350265006 Housing
4350265041 Adapter
4350265045 Sealing Bush
4350265047 Sealing Bush
4350265105 Gear Wheel
4350258430 Repair Kit
4350258450 Repair Kit
502109194 Link Arm Bearing
544215300 Grease Nipple
544216200 Lubricating Nipple
544256200 Grease Nipple
3128003116 Spacer Ring
501000016 Bearing
501000051 Bearing
501000072 Bearing
501001901 Bearing
501001900 Bearing
509022200 Bearing
516150401 Bearing
516153800 Bearing
3128310213 Bushing
The main technical level of Down-Hole Drilling Rig, with nine patents, has remain the international advanced level. The notable features are as follows:
1. Integration of drilling mechanism, air-compressed supplying system and power group provide improved maneuverability, energy saving and high efficiency.
2. Parts worldwide procurement, chose from well-known brands, actualize the higher efficiency and reliability.
3. Pilot handles control all the machine operations, the various movements and speeds can be adjusted at any time. All of above make sure the machine operate normally and accurately.
4. High reliable crawler traveling system, hydraulic motor driving drilling rod ,and hydraulic cylinder supported sliding rack optimize working efficiency and machine adaptability.
5. Hydraulic disassembly mechanism for impact ,drilling system ,drilling bit.
6. High effective dust collection device and the anti-hoisting device, which is the original patent at home and abroad, improve the working environment effectively.
7. High effective dust collection device and the anti-hoisting device, which is the original patent at home and abroad, improve the working environment effectively.
8. The domestic unique auto block-prevention mechanism can lift the drill stem automatically when the stem got stuck, making the stoppage much less than before.
9. The patent technology self-adaptive control to the force on the drilling process, cooperating with the auto-sensing control to various rock conditions and decrease the block faults.
Kelly bar is the key part of a drilling machine, and its quality directly affects the performance of the whole machine. The main purpose of kelly bar is to transfer the torque of rotary drive and crowd pressure of the crowd system to the drilling tool. Based on the rich manufacturing experience and by absorbing the advanced technology both at home and abroad, we can produce first-class kelly bar which can be compared favorably with the imported ones.
The features of Unimate kelly bar are as follows:
Adopt the advanced technology of 6-key design in the world and standard modular design.
Equipped with advanced processing facilities, workmanship and manufacturing equipments, UNIMATE kelly bar enjoys a low weight, high strength, high straightness of single bar, thinner tube, smaller inter-tube distance and good abrasion resistance.
The raw materials are either imported from Germany like the high abrasion resistance materials, or from Chinese top manufacturer such as the seamless steel tube with alloy. All the tubes made in China are specially made seamless alloy tube, which guarantees the accuracy of the sizes, location, physical properties and easy welding. The small-diameter tubes undergo reheat treatment. The friction kelly bar can be used under full torque.
All the outer keys have undergone special heat treatment; therefore, they possess higher hardness, higher flexibility and excellent welding properties, which provide higher abrasion resistance to the keys.
There are mainly two types of Kelly bars:
1-Interlocking Kelly Bar
2-Friction Kelly Bar
Interlocking Kelly Bar
Interlocking Kelly bars are used with piling rigs for drilling in dense sand and gravel and weak to strong rock. The Interlocking Kelly bars manufactured by Unimate can be fully locked by mechanical locking system on each section. Kelly bars can be equipped with specially designed springs or pressure plates for shock absorbing purpose.
Steel pallet , wooden pallet.
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