Which port do you ship from?

We usually ship containers from Shanghai Port, though Guangzhou Port is also available.

What are the advantages of hammers without foot valves?

They prevent valve breakage, offer higher impact rates, 15-30% faster drilling speed, lower energy and oil consumption, and feature simple, reliable designs for easy maintenance.

What certifications do your products have?

Our products are certified under ISO 9001:2000 and ISO 9001:2008 standards.

8inch High Air Pressure DTH Hammers for Rock Drilling / Water Well Drilling Mining Tools

Name: 8inch High Air Pressure DTH Hammers for Rock Drilling / Water Well Drilling Mining Tools
Brand: Changsha Chaojingang Machinery Manufacturing Co., Ltd.
SKU: 1918852355

Hunan, ChinaChangsha Chaojingang Machinery Manufacturing Co., Ltd.

US$50.00-200.00

1 Piece

Sample price:US$1000.00/piece.Request sample

Product profile

Customization

Available

Certification

ISO 9001:2000, ISO 9001:2008

Surface Treatment

Spray-Paint

Manufacturing Process

Forging

Material

Alloy Steel

Connection Thread

API 4 1/2" Reg

Hole Range

Dia 195 - 254 mm

Working Pressure

1.0 - 3.0MPa

Compatible Bit Shank

Cop84, DHD380, Ql80, M80, SD8, CD85

Transport Package

Ply-Wooden Cases for Exporting

Specification

2 inch to 12 inch

Trademark

Super Diamond

Origin

China

HS Code

8207199000

Key features

Foot Valve-Free Design: Eliminates valve breakage risks, offering 15-30% higher drill speed and lower energy consumption.

Customization Options: Customizable connection threads, hole ranges, working pressures, and compatible bit shanks.

Premium Material Quality: Made from high-quality alloy steel with premium hardened procedures for extended service life.

Low Maintenance Cost: Simple design with reliable parts ensures easy and cheap maintenance compared to traditional hammers.

Energy Efficiency: Oil consumption is approximately 10% lower than hammers equipped with foot valves.

Stable Production Lead Time: Full production chain ensures stable and prompt delivery, typically taking about one month.

Competitive Pricing: Offers best quality against small factories and competitive prices against famous global brands.

Company profile

Changsha Chaojingang Machinery Manufacturing Co., Ltd.

Hunan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Shanghai Port; Shenzhen PortAverage Response Time: ≤1.52h

AI-Powered supplier vetting

SummaryThe supplier demonstrates product R&D, ODM, SDK availability, and broad customization capabilities, including customization from samples, designs, full customization, and minor customization. It reports eight years of export experience, export activity representing 51%–70% of total sales, self-operated import and export rights, and participation in an offline international construction machinery exhibition. Service quotations support FOB, CIF, CFR, and EXW, with a stated one-month average lead time in both peak and off-seasons. However, the supplier reports no overseas warehouse, showroom, agents, or branches, and no overseas service countries. ISO9001:2015 certification and recent fire drills are stated, but no factory environmental impact assessment report is available. Financial records provided for recent years show zero values for revenue, profit, margins, costs, and current ratios, preventing a positive assessment of financial credibility. Evidence of production scale and named customer cases is...

Supplier typeThe supplier appears to be a manufacturing-oriented rock-drilling equipment provider with R&D, ODM, SDK, export, and customization capabilities. Its products are described for earthwork, mining, water-well, construction, geothermal, and municipal engineering applications, while it does not provide OEM services for popular brands.

CertificationsThe supplier reports holding an ISO9001:2015 certificate and conducting regular fire drills during the past year. However, it also states that the factory has no environmental impact assessment report, so the evidence supports quality-system certification but not comprehensive environmental documentation.

Financial creditThe supplied financial records for the stated recent years report zero operating revenue, operating costs, gross profit, operating profit, gross margins, and current ratios. These values do not provide positive evidence of financial strength and materially limit the ability to verify financial credibility.

R&D capabilityThe supplier reports that it had new products during the past year, provides ODM services, and has an available SDK. These are explicit indicators of product development and technical integration capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization. It also reports R&D capability and ODM service availability, supporting a broad customization offering.