Sale! 235mm Numa200 DTH Button Bit Heavy Foundation Drilling

Name: Sale! 235mm Numa200 DTH Button Bit Heavy Foundation Drilling
Brand: Hunan Powerroc Mining Technology Co., Ltd
SKU: 1996333501

Hunan, ChinaHunan Powerroc Mining Technology Co., Ltd

US$850.00-2,200.00

1 Piece

Sample price:US$850.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

ISO 9001

Model NO.

DTH-NUMA200

Length

Taper-length

Type

Center Drill Bit

Material

Tungsten Carbide

Usage

Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling, Heavy Foundation Drilling

Shank Type

Numa200

Bit Face Design

Drop Center with Ballistic Buttons

Body Material

Forged Alloy Steel

Heat Treatment

Advanced Multi-Stage

Recommended Rpm

18-38 Rpm

Recommended Air Pressure

22-28 Bar

Transport Package

Fumigation Free Solid Wood Case

Specification

Diameter: 235mm (9 1/4 Inch)

Trademark

PowerRoc

Origin

China

HS Code

84314310

Production Capacity

2, 50units/Year

Key features

Precision engineered NUMA200 shank with enlarged spline area handles 30% higher torque, perfect for heavy foundation drilling.

Eliminate shank failure in deep foundation work; forged alloy steel with advanced heat treatment ensures superior durability.

Field data shows 25% faster penetration in hard rock compared to standard DTH bits for foundation drilling.

Engineered for deep foundation piling, bridge piers, and heavy civil construction projects.

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:Which NUMA hammers are compatible with this bit?

This bit is specifically designed for NUMA200 hammers. Please confirm your hammer model when ordering.

Q:What is the advantage of drop center face design for heavy foundation drilling?

It improves rock crushing efficiency and maintains better hole straightness in deep foundation drilling applications.

Q:What is the recommended air volume for this 235mm bit?

We recommend 850-1,150 CFM air volume at 22-28 bar pressure for optimal chip removal and penetration rate.

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