DTH Hammer Bit DHD350-152mm Shank types: DHD3.5, DHD340A, DHD350R, DHD360, DHD380. DTH rock drill bits hole diameter: 3', 4', ', 6, 8 (85mm-305mm) DHD shank DTH drill bit with flat face, 8 dome & 8 semi-ballistic carbide buttons for blasting bore holes, water well drilling. CODE NO. DHD350R-152 Shank type DHD Diameter 152mm Air Holes Number 2 gauge buttons 8 17 Face buttons 8 14 Bit face type Flat carbide design Dome/semi-ballistic RS is rock drilling tools manufacturer, we produce a various range of DTH hammer bits with DHD shanks type for a wide range of hole sizes, which have been designed to match all conceivable applications for water well industries, mining and construction Flat Face An universal design, especially for hard and abrasive rock formation. Typically, flat face with hemispherical buttons design is the most popular choice. This kind of face shape is suitable for hard to very hard and abrasive rock formations in application with high air pressure. Good penetration rates an resistance to steel wash. Dome/Hemispherical Buttons Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation. Semi-Ballistic/Parabolic Buttons Excellent penetration rate, but only suited to medium hard and not so very abrasive rock formation. RS DTH Bit features 1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to inner structure of HD series DTH hammer designed according to newest rock drilling theory. 2.Smooth performance and long service life of DTH bits due to high quality alloy steel materials and advanced processing technology adapted. 3.Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of DTH bits. 4.Easy to depart bit from hammer due to multi-head thread connection chuck and cylinder of hammer. 5. Can connect well with DTH bit and dill pipe manufactured by Atlas Copco and Sandvik. We can also provide related products DTH hammers, ODEX system, symmetrix systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc Quality warranty: Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion. Package: Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests. Production time: Generally need 15-25 days Transportation: By air, By Express or By sea according to your requests.
A rotation drill rig, air compressor and the "DTH drill string" are the essential unit for DTH drilling while the "DTH drill string" is always made up of DTH drill rods, DTH hammer and DTH bits. As one of key component, the DTH hammer acts as a role of converting the air pressure to the impact energy, simultaneously transferring impact energy and rotation force to DTH bits. The optimum range of hole size for blast hole drilling with DTH is 90 mm to 254 mm (3 -10). Smaller blast holes are generally drilled using tophammer, and larger holes generally use rotary machines. In other applications, like foundation drilling, DTH hammers can be used with single bit in hole sizes up to . 750 mm (30). With multiple hammer units CD (Cluster drills) drill holes up to 70 or 1778 mm. As a rule of thumb, the smallest hole diameter a DTH hammer can drill is its nominal size. A 4 inch hammer will drill a 4 inch (102 mm) hole. The limiting factor is the outside diameter of the hammer, because, as hole diameter reduces, airflow is restricted. Maximum hole size for production drilling is the nominal hammer size plus 1 inch, so for a 4 inch hammer the maximum hole size is 5 inch (127-130 mm). Choosing the right hammer is largely determined by hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just enough space for cuttings to evacuate the hole.
Material: high carbon spring steel, spring steel, stainless steel, alloy steel Compression Spring, Extension Spring : Wire Diameter: 0.2-40.0mm Torsion spring wire diameter :0.2-35mm Surface Finish: black , Zinc, Nickel, silver, golden, tin, powder coating, shot pin Applications: Automotive, medical device, agricultural machinery ,electronics, toy, electric power distribution. Extension spring hook include Germany hook, British hook, Side hook We can customize special design of springs based on your requirement.
Drill Bits
Power Screw Bits
Available for sale on behalf of my client: Two pieces of Diamond Drill Bits, American Oil and Gas Augur heads, produced by DPI PDC USA Original. Big bit size 12.1/4 inches Small bit size 8.1/2 inches Completely new, never used.
Used for hard or very hard rock formation. Excellent quality and durability and Specialized heat treat & stress reliefï¼?also Maximum performance and hole cleaning ability (1) Type: button bits (2) Size: Size: H22 (3) Diameter: 34mm (4) Taper: degree : (5).Button bit: 7 Buttons (5) Package: in pallet or in carton. (6) Productivity: 50000pcs/ month
We are one professional manufacturer of rock drilling tools and consumables in china. Our main products include dth hammer, dth bit, button bit, drill rod, shank adaptor, coupling sleeve, overburden drilling equipment, which are used for mining, quarrying, tunneling, water well drilling, mineral exploration, civil engineering and construction. Please feel free to contact me if you are interested in our products. Many thanks.
Product Despcription Shank Style Diameter in mm Button angle Approx.weight Part No. QL30 90mm 38 4.6 MD35-90 100mm 38 4.8 MD35-100 105mm 38 5 MD35-105 QL40 105mm 38 8.5 MD45-105 110mm 38 8.8 MD45-110 115mm 38 9 MD45-115 125mm 38 10.5 MD45-125 130mm 38 11 MD45-130 QL50 135mm 38 15.9 MD55-135 140mm 38�° 16 MD55-140 145mm 38�° 16.5 MD55-145 150mm 38�° 17 MD55-150 152mm 38 17.5 MD55-152 QL60 152mm 38 23 MD65-152 165mm 38 24 MD65-165 171mm 38 25 MD65-171 178mm 38 26 MD65-178 190mm 38 27.5 MD65-190 230mm 38° MD65-230 240mm 38 MD65-240 254mm 38 MD65-254 QL80 203mm 38 47 MD85-203 216mm 38 53 MD85-216 219mm 38 54 MD85-219 230mm 38 57 MD85-230 240mm 38 58 MD85-240 254mm 38 63 MD85-254 305mm 38 70 MD85-305 356mm 38 94 MD85-356
