4 Inch 102mm DTH Hammer with API 2 3/8" REG and DHD 3.5 for Hard Rock Drilling
Price:
$3-$300
MOQ:
1 Piece
Delivery Time:
10-15 days
Brand:
MTH
Product Description
4 Inch 102mm DTH Hammer Hard Rock Drilling Equipment CNC Machining
Product Description
"DTH" stands for "Down The Hole" and is sometimes referred to as "RAB" (Rotary Air Blasting) in certain markets.
Technical Specifications
| Parameter | Value 1 | Value 2 | Value 3 | Value 4 | Value 5 |
|---|---|---|---|---|---|
| Length (Without Bit) | 930mm | 1030mm | 1214mm | 1160mm | 1248mm |
| Weight (Without Bit) | 25.00 kg | 39.00 kg | 76.50 kg | 72.50 kg | 100.00 kg |
| External Diameter | 82mm | 99mm | 126mm | 126mm | 142/144/146/148mm |
| Bit Shank | DHD3.5 | COP44/DHD340 | COP54/DHD350R | ND55C/DHD350Q | COP64/DHD360 |
| Hole Range | 90-110 mm | 110-135 mm | 135-155 mm | 135-155 mm | 155-190 mm |
| Connection Thread | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg API 3 1/2"Reg API 2 7/8"Reg | API 2 3/8"Reg API 3 1/2"Reg API 2 7/8"Reg | API 3 1/2"Reg |
| Working Pressure | 1.0-1.5 Mpa | 1.2-2.0 Mpa | 1.3-2.3 Mpa | 1.3-2.3 Mpa | 1.5-2.5 Mpa |
| Impact Rate at 17 Bar | 28HZ | 27HZ | 25HZ | 25HZ | 23HZ |
| Recommended Rotation Speed | 25-40 r/min | 25-40 r/min | 20-35 r/min | 20-35 r/min | 20-30 r/min |
| Air Consumption | 1.0Mpa:4.5 m³/min 1.5Mpa:9.0 m³/min |
1.0Mpa:6 m³/min 1.8Mpa:10 m³/min |
1.0Mpa:9 m³/min 1.8Mpa:15 m³/min 2.4Mpa:23 m³/min |
1.0Mpa:9 m³/min 1.8Mpa:15 m³/min 2.4Mpa:23 m³/min |
1.0Mpa:10 m³/min 1.8Mpa:20 m³/min 2.4Mpa:28.5 m³/min |
Applications
This DTH hammer is widely used in metallurgy, coal, chemical industry, building materials, mining operations, and construction projects including highways, railroads, and national defense. It's suitable for dry, mixed wind and water, and wet operations with reliable performance.
Product Advantages
- Improved design incorporating advanced technology
- Constructed with superior alloy steel for durability
- Extensive testing confirms longer service life
- 15% higher penetration speed than conventional models
- Lower air consumption for improved efficiency
Operating Principle
The DTH hammer operates through a precise pneumatic mechanism. During the impact stroke, compressed gas drives the piston downward at high speed to strike the drill bit. The system automatically reverses direction when the piston reaches the end of its stroke, creating a continuous hammering action.
Manufacturer Information
Hebei Minetech Machinery Technology Co, Ltd. is a professional manufacturer and exporter of mining drilling tools located in Hebei province, China. With over a decade of experience, our company specializes in producing tapered and thread rods, chisel and button bits, and other mining drilling equipment. Our team of professional engineers and sales staff are dedicated to providing complete solutions for mining machinery applications.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
HEBEI MINETECH MACHINERY TECHNOLOGY CO., LTD
Location
No. 466 Zhongshan Road, Shijiazhuang, Hebei, China
Contact Person
Nikolay