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Sale! 108-135mm Concentric Overburden DTH Drill Bit for Casing Drilling

Hunan, ChinaHunan Powerroc Mining Technology Co., Ltd

Sale! 108-135mm Concentric Overburden DTH Drill Bit for Casing Drilling

US$700.00-1,900.00

1 Piece

Sample price:US$700.00/piece.Request sample

Product profile

Customization

Available

Customized

Customized

Standard

ISO 9001

Model NO.

DTH-CONC-OVER-108-135

Length

Taper-length

Type

Center Drill Bit

Material

Tungsten Carbide

Usage

Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling, Casing Drilling

Bit Type

Concentric Overburden

Cutter Type

Tungsten Carbide Inserts

Hammer Compatibility

DHD / SD / Ql Series

Recommended Rpm

15 - 35 Rpm

Recommended Air Pressure

17 - 24 Bar

Transport Package

Fumigation Free Solid Wood Case

Specification

108 - 135 mm (4 1/4 - 5 3/8 Inch)

Trademark

PowerRoc

Origin

China

HS Code

84314310

Production Capacity

2, 500 Units/Year

Key features

Concentric overburden design advances casing flush with borehole wall, preventing collapse in unstable ground.

Eliminate hole collapse in gravel and boulder formations; instant casing support ensures continuous drilling.

Field data shows 30% faster casing advancement compared to conventional eccentric systems.

Company profile

Hunan Powerroc Mining Technology Co., Ltd

Hunan Powerroc Mining Technology Co., LtdHunan, China

Business Type: Manufacturer/FactoryNearest Port: CNZOS, CNSHA, CNSZXAverage Response Time: ≤0.10h

About Our Factory & Business Background

AddressMingcheng Lvgu Smart Industrial Park, Renmin East Road, Changsha, Hunan, China

Registered Capital2,000,000 RMB

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: one month

Our Production Capability & Technical Expertise

Main ProductsMining Products

Our Industry Experience & Global Business Record

Main MarketsSouth America, Africa, Eastern Asia, Eastern Europe, Mid East, Southeast Asia, Western Europe

Product Q&A

Q:What casing sizes does this concentric overburden system support?

A:

This system supports casing diameters from 108mm to 135mm (4 1/4 to 5 3/8 Inch).

Q:What is the advantage of concentric over eccentric systems?

A:

Concentric systems provide better borehole straightness and are easier to retrieve in fractured ground.

Q:What formations is this overburden bit best suited for?

A:

It performs best in overburden, gravel, boulder, loose soils, and fractured rock.

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