Powerroc High-Performance 250 Tricone Bit Customized for Tunnel Boring

Name: Powerroc High-Performance 250 Tricone Bit Customized for Tunnel Boring
Brand: Hunan Powerroc Mining Technology Co., Ltd
SKU: 2000477311

Hunan, ChinaHunan Powerroc Mining Technology Co., Ltd

US$800.00-2,200.00

1 Piece

Sample price:US$800.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

ISO 9001

Model NO.

TRICONE-ST-TBS-251

Length

Taper-length

Type

Center Drill Bit

Material

Tungsten Carbide

Usage

Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling, Tunnel Boring Support

IADC Code

217

Bearing Type

Open Bearing with Air Circulation

Tooth Type

Milled Steel Tooth with Hardfacing

Circulation Type

Air / Mud Fluid

Connection Thread

6 5/8 Standard Reg Pin

Gauge Protection

Available

Transport Package

Fumigation Free Solid Wood Case

Specification

Diameter: 250.8mm (9 7/8 Inch)

Trademark

PowerRoc

Origin

China

HS Code

82071910

Production Capacity

2, 500 Units/Year

Key features

IADC 217 milled steel tooth design with aggressive cutting structure delivers high ROP in soft to medium tunnel formations.

Eliminate poor hole quality in tunnel faces; optimized cone geometry ensures stable drilling in underground conditions.

Field data shows 30% faster drilling in clay and weathered rock compared to TCI bits in tunneling.

Engineered for tunnel face drilling, pipe roofing, spiling, and underground excavation support.

Company profile

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:Why choose steel tooth bit over TCI for tunneling?

Steel tooth bits offer higher ROP and lower cost in soft to medium formations, making them ideal for tunnel face drilling.

Q:What makes this bit suitable for underground conditions?

Open bearing design with air circulation provides reliable cooling and cleaning in confined underground spaces.

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

It performs best in clay, weathered rock, soft shale, sandstone, and tunnel face conditions.

Send Inquiry

*To:

Hunan Powerroc Mining Technology Co., Ltd

*Content:

0/4000

Supplier replies will be sent to your registered email