Place of Origin: | Shangdong,China |
Brand Name: | MIROC |
Certification: | API |
Model Number: | Down The Hole Hammer |
Minimum Order Quantity: | 50 Pieces |
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Price: | negotiation |
Packaging Details: | Wooden Plate |
Delivery Time: | 10-25days |
Payment Terms: | T/T, L/C, D/A, D/P, Western Union, MoneyGram |
Supply Ability: | 20000pcs per month |
Material: | Tungsten Carbide And High Quality Carbon Steel | Color: | Golden |
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Use: | Tunneling, Mining,Quarrying,Construction | Processing Type: | CNC Milling And Proprietary Heat Treatment Process |
Type: | Down The Hole Hammer | Bit Diameter: | 130MM 152MM |
Series: | DHD,SD,COP,QL | ||
Highlight: | down the hole drilling tools,down the hole hammer |
Down Hole Hammers Golden For Hard Rock Mining 4 Inch DTH Hammers Drilling
Describtion
In DTH hammers, 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 hammers a nearly constant penetration rate regardless of hole length.
Product name |
DTH Hammer |
Material |
Alloy Steel&Tungsten Carbide |
Use |
Underground Mining,Water well,Mining,Quarry etc. |
Color |
Green&Others |
Heat treatment |
Anneal |
Shank series |
DHD,COP,MISSION, SD, DHD, BR, QL, BR,CIR etc. |
Application |
heavy construction,Ore Drilling, mining, oil and gas, quarries |
Hole |
60-305mm |
Size |
2/3/4/5/6/7/8/9/10/12/14 inches |
Advantage |
High Performance and factory price |
• Small to medium size drilling diameters
• Works in low pressure range, capable of drilling shallow to medium hole lengths
Specification
DTH hammer type | DHD35 | DHD45 | SD4 | QL4 | |
Length(less bit) mm | 930mm | 1030 | 1084 | 1097 | |
Weight(less bit) kg | 25kg | 39 | 40.5 | 41 | |
External diameter mm | Φ82mm | Φ99 | Φ99 | Φ99 | |
Bit shank | DHD3.5 | COP44 DHD340 | SD4 | QL40 | |
Hole range(mm) | Φ90-110 | Φ110-135 | Φ110-135 | Φ110-135 | |
Connection thread | API 2 3/8” Reg. | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg | |
Working pressure | 1.0-1.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 28Hz | 27Hz | 27Hz | 27Hz | |
Recommended Rotation speed | 25-40r/min | 25-40r/min | 25-40r/min | 25-40r/min | |
Air consumption | 1.0Mpa | 4.5m3/min | 6.0m3/min | 6.0m3/min | 6.0m3/min |
1.8Mpa | 9.0m3/min | 10.0m3/min | 10.0m3/min | 10.0m3/min | |
2.4Mpa | 15.0m3/min | 15.0m3/min | 15.0m3/min |
Advantages
dth hammer: | dth hammer spare parts |
More efficient energy transfer. | Valveless air distribution. More reliable. |
Faster drilling speed, 15%-30% higher than others. | Simple design of the piston, long life |
Lower air consumption and lower oil consumption. oil consumption is about 10% lower than others | Fewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated. |
Direct factory price | Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread. |
Applications
• Underground mining
• Quarry benching operations
• Water well drilling
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988