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8 and 6 inch down the hole High Pressure DTH Hammer and Bit
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Product Details
Place of Origin | Shandong, China | Brand Name | Miroc | |
Model Number | QL60, SD40-80, CIR90, DTH340 ETC | Type | Other, dth hammers and button bits | |
Material | Other, Tungsten Carbide, Tungsten Carbide | Use | Other, Tunneling,Mining,Quarrying,Construction |
Product Description
In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.
DTH bits are paired with their corresponding hammers (by drilling hole diameter and spline configuration). Customers can customize their DTH bits in various ways, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.
• Medium to large size drilling diameters
• Works in high pressure range, capable of drilling deep hole lengths
Applications of DTH Bit
• Underground mining
• Tunneling
• Quarry benching operations
Specification of DTH Bits
Part Number | Product Code and Brief Description | Flushing Holes | Diameter (mm) | Weight (kg) | Gauge Buttons ( No.x mm) | Front Buttons ( No. x mm) | DTH Hammer |
4148301682 | DTH65PQ | 1 | 68 - 72 | 1.5 | 4 x12 | 3 x 12 | DTH65 |
4148301683 | DTH75PQ | 3 | 75 - 77 | 2.4 | 5 x 12 | 3 x 12 | DTH70 |
4148301684 | DTH76PQ | 2 | 76 - 78 | 2.5 | 5 x 12 | 3 x 12 | DTH76 |
4148301685 | DTH76-78 | 2 | 78 - 82 | 2.6 | 5 x 12 | 3 x 12 | DTH76 |
4148301686 | DTH80PQ | 3 | 82 - 84 | 3 | 5 x 12 | 6 x 12 | DTH80, DTH80X |
4148301687 | DTH90A | 3 | 90 - 95 | 3.6 | 6 x 14 | 4 x 12 | DTH80, DTH80X |
4148301688 | DTH80XD-90 | 3 | 90 - 95 | 3.4 | 6 x 12 | 4 x 12 | DTH80XD |
4148301689 | DTH80-II-80 | 3 | 80 - 82 | 3 | 5 x 12 | 4 x 12 | DTH80-II |
4148301690 | DTH90B | 3 | 90 - 95 | 3.8 | 6 x 14 | 4 x 12 | DTH90, DTH90-I |
4148301691 | DTH90T1 | 2 | 90 - 95 | 3.6 | 6 x 14 | 1 x 12, 3 x 12 (Spherical) | DTH90, DTH90-I |
4148301692 | DTH90T2 | 2 | 90 - 95 | 3.8 | 6 x 14 (Spherical) | 4 x 12 (Spherical) | DTH90, DTH90-I |
4148301693 | DTH90T3J | 3 | 90 - 95 | 3.6 | 6 x 14 (Ballistic) | 4 x 12 (Ballistic) | DTH90, DTH90-I |
Technical Manual of DTH Hammer
3 Inch | 3.5 Inch | 4 Inch | 5 Inch | 6 Inch | 8 Inch | 12 Inch | |
Drilling diamter(mm) | Φ82-85 | Φ90-93 | Φ105-130 | Φ130-152 | Φ152-305 | Φ203-305 | Φ302-508 |
Hammer length(mm) | 867 | 908 | 1052 | 1387 | 1450 | 1551 | 1934 |
External diamerer(mm) | Φ71 | Φ81 | Φ92 | Φ114 | Φ136 | Φ181 | Φ275 |
Weight(kg) | 19 | 21.8 | 38 | 69 | 126 | 277 | 642 |
Working pressure(Mpa) | 0.8-2.1 | 0.8-2.1 | 0.8-2.1 | 0.8-2.1 | 0.8-2.1 | 0.8-2.1 | 0.8-2.1 |
Air consumption(m3/min) | 3-12 | 4.3-14.2 | 3.5-18 | 5.7-18 | 8.5-25 | 12-31 | 14-45 |
Torque(N.M) | 150 | 205 | 304 | 590 | 822 | 1560 | 2410 |
Lmpact frequenc(Time/Min) | ≥800 | 950-1500 | ≥800 | 810-1470 | 820-1475 | 860-1510 | 980-1446 |
Connection thread | inside 48.8x4.2 | outside API 2-3/8" | inside API 2-3/8" | outside API 3-1/2" | outside API3-1/2 | outside API4-1/2" | outside API6-5/8" |
Connection thread | Φ47-6 | Φ53-8 | Φ64-8 | Φ84-8 | Φ99.5-8 | Φ128-10 | Φ184-8 |
Bit shank | 3"- 85 | 3.5"- 90 | 4"- 105/115/130 | 5"- 130/140/152 | 6"- 152/165/178/194/203/216/230/254/305 | 8"- 152/165/178/194/203/216/230/254/305 | 12"- 302/311/330/357/381/444/483/508 |
Competitive Advantage
• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
Contact Us
- KSQ Technologies (Beijing) Co., Ltd.
- Contact nameAileen Zhao Chat Now
- Phone86-10-60714361-8006
- AddressRm. 705, Unit 2, Floor 7, Building 6, Gulou South St., Chengbei St.
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