Professional Drilling Tools manufacturer

25 Years Manufacturing Experience

BH170 DTH bit DTH Back hammer for 3-12 inch DTH Hammers

Short Description:

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

In case of jamming of any driling tool during the boring process, the back hammer will help you save time and money.

The back hammer may be mounted on the drill pipe joint between the borehole gripper and the swivel head, thus, creating a combined effect of effective reverse impact and vibration.

Sturdy and reliable, the back hammer is composed of three components and a plastic housing which acts both as an exhaust emission guider and a muftler. With regards to the maintenance, i's only necessary to keep it clean and the linking section well protected when the back hammer is not working.

The Back hammer is designed to give percussion mechanism in which the impact power is directed backwards to help free DTH Hammer and drill pipes that have jammed in the drill hole.

The Back Hammer is designed to help to free a DTH hammer and drill pipes that have jammed in the drill hole. It can also be used to hammer down or withdraw casings.

The Back Hammer is mounted between the rotating unit and the drill pipes or between drill pipes.

DTH Hammer and drill pipes that have jammed in the drill hole. It is used widely in DTH air drilling .

Back Hammer
Products Pressure Thread Total Length(mm) Diameter KG
LBH140 8Bar API 3 1/2" 510 140 31
LBH160 8Bar API 3 1/2" 540 160 44
LBH190 8Bar API 4 1/2" 580 190 63
LBH240 8Bar API 4 1/2" 600 240 85
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

Picture

back hammer back hammer

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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