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25 Years Manufacturing Experience

QL50A Professional factory price High air pressure 127mm DTH hammer for well mining

Short Description:

Model Number 3/3.5,4,5,6,8,10,12 inches
Drill Rock hardness F=6-20
Condition New
Type Rotary Drilling Rig
Processing Type Forging
 Place of Origin Beijing, China (Mainland)
Brand Name JCDRILL
Usage Rock drilling
Material Carbide

Product Detail

Product Tags

Product Detail

Model Number 3/3.5,4,5,6,8,10,12 inches Certification ISO CE
Drill Rock hardness F=6-20 Warranty 1 Year
Condition New After-sales Service 7X24hours available
Type Rotary Drilling Rig Color As request
Processing Type Forging Button shape Spherical, Ballistic, Semi-ballistic
 Place of Origin Beijing, China (Mainland) Bit face shape Flat, concave, convex, drop center
Brand Name JCDRILL Other shanks COP,DHD,MISSION, SD
Usage Rock drilling Type DTH Hammer
Material Carbide Machine Type Drilling Tool

Product Features

Introduction

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1. In order to increase working life of the piston case when drilling very abrasive rocks, the driver sub is designed to be made up of three pieces and only the wear-proof casing need to be replaced timely.
2. Heat treated piston and internal cylinder guiding system are reasonably structured to achieve the highest efficiency and the largest impacting power. The penetration speed is 10%-30% faster than other products of the same type.
3. Fewer air holes on internal cylinder, higher Stiffness of air slot.

4. The multiple threads are CNC machined to achieve high accuracy, making the bit easy and smooth to get assembled. Driver sub is heat treated to achieve better abrasiveness and longer life.
5. Hammer front structure design: when pulling out the hammer, the last impact of the piston would fall on the step of piston case, ensuring the safety of the driver sub spline sand the retainer ring.

6. Piston case: Using superior alloy steel,even better reliability and longer life after heat treatment.
7. Internal parts are tightly assembled to avoid interactive wear and hammer's reliability is increased.
8. Standard API Thread.

DTH Hammer
Type Model Outer Diameter
High pressure DTH Hammer
3 inch JD25A 71mm
3.5 inch JD35A/M30 82mm
4 inch JD45A/QL40A/M40/SD4 99mm
5 inch JD55A/QL50A/M50/SD5 125mm
6 inch JD65A/QL60A/M60/SD6 142mm
8 inch JD85A/QL80A/M80/SD8 180mm
10 inch HD100A/SD10 225mm
12 inch JD125A/SD12 275mm
14 inch JD140A -
Middel Pressure DTH Hammer
2.5 inch BR1 56mm
3 inch BR2 64mm
3.5 inch BR3 82mm
Lower Pressure DTH Hammer
3 inch CIR65 68mm
3.5 inch CIR70 76mm
4 inch CIR90 99mm
5 inch CIR110 110mm
6 inch CIR150 150mm
8 inch CIR170 170mm
Back Hammer
6 inch BH140 155mm
8 inch BH170 190mm
10 inch BH190 220mm
12 inch BH240 190mm
hammer
Type Model Length Weight External Dia.(mm) Hole Range
(mm) (kg) (mm)
3.5 inch DHD3.5 930 25 82 90-110
4 inch DHD340 1030 39 99 110-135
SD4 1084 40.5 99
QL40 1097 41 99
Mission40 1005 40 99
5 inch DHD350 1214 76.5 125 135-155
SD5 1175 72.5 125
QL50 1147 73 125
Mission50 1110 68.5 125
6 inch DHD360 1248 100 142 155-190
SD6 1261 100 142
QL60 1212 95 146
Mission60 1161 90 146
8 inch D85 1492 188 180 195-254
SD8 1463 192 180
QL80 1465 182 180
Mission80 1338 176 180
10 inch SD10 1502 290 226 254-311
NUMA100 1510 288 226
12 inch DHD1120 All can be designed according to your requests!
Numa120
Numa 125
14 inch JD140A

Picture

Features:特点 1.Suitable for all rock conditions at a wide range of air pressures 116-435psi (8-30bar) 2.Patent structure reduces consumable parts to avoid interactive wear, increase hammers reliability and increase 10%-30% faster penetration rates and make hammer more easy for maintenance 3.Heat treated top sub, cylinder, piston, piston case, driver sub give hammers longer service life 4.Interchangeable with DTH bit and drill pipe 5.Extremely efficient air exhaust provide excellent hole cleaning and allows for drilling against very large volumes of water Features:特点 1.Suitable for all rock conditions at a wide range of air pressures 116-435psi (8-30bar) 2.Patent structure reduces consumable parts to avoid interactive wear, increase hammers reliability and increase 10%-30% faster penetration rates and make hammer more easy for maintenance 3.Heat treated top sub, cylinder, piston, piston case, driver sub give hammers longer service life 4.Interchangeable with DTH bit and drill pipe 5.Extremely efficient air exhaust provide excellent hole cleaning and allows for drilling against very large volumes of water

Commercial Terms of Product

Minimum Order Quantity N/A
Price
Packaging Details Standard Export Delivery Package
Delivery Time 7days
Payment Terms T/T
Supply Ability Based on Detailed Order

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