Down Hole Hammers Golden For Hard Rock Mining 4 Inch DTH Hammers Drilling

Brand Name:MIROC
Certification:API
Model Number:Down The Hole Hammer
Minimum Order Quantity:50 Pieces
Delivery Time:10-25days
Payment Terms:T/T, L/C, D/A, D/P, Western Union, MoneyGram
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Location: Beijing Beijing China
Address: Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
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Product Details

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 typeDHD35DHD45SD4QL4
Length(less bit) mm930mm103010841097
Weight(less bit) kg25kg3940.541
External diameter mmΦ82mmΦ99Φ99Φ99
Bit shankDHD3.5COP44 DHD340SD4QL40
Hole range(mm)Φ90-110Φ110-135Φ110-135Φ110-135
Connection threadAPI 2 3/8” Reg.API 2 3/8"RegAPI 2 3/8"RegAPI 2 3/8"Reg
Working pressure1.0-1.5Mpa1.0-2.5Mpa1.0-2.5Mpa1.0-2.5Mpa
Impact rate at 1.5-1.7Mpa28Hz27Hz27Hz27Hz
Recommended Rotation speed25-40r/min25-40r/min25-40r/min25-40r/min
Air consumption1.0Mpa4.5m3/min6.0m3/min6.0m3/min6.0m3/min
1.8Mpa9.0m3/min10.0m3/min10.0m3/min10.0m3/min
2.4Mpa15.0m3/min15.0m3/min15.0m3/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 othersFewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated.
Direct factory priceEasy 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

China Down Hole Hammers Golden For Hard Rock Mining 4 Inch DTH Hammers Drilling supplier

Down Hole Hammers Golden For Hard Rock Mining 4 Inch DTH Hammers Drilling

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