What payment terms do you accept?

We accept LC, T/T, PayPal, Western Union, and small-amount payments.

What is the warranty policy?

Products are made of high-quality steel, and all spare parts are inspected strictly before shipping.

What are the available bit shanks?

Available shanks include Bulroc BR1/BR2/BR3, COP32/34/44/54/64/84, DHD3.5/340/350/360/380/1120, and more.

4inch DTH Hammer Series -Ql40, Mission40, SD4, DHD340, Cop44

Name: 4inch DTH Hammer Series -Ql40, Mission40, SD4, DHD340, Cop44
Brand: Changsha Chaojingang Machinery Manufacturing Co., Ltd.
SKU: 1921524035

Hunan, ChinaChangsha Chaojingang Machinery Manufacturing Co., Ltd.

US$50.00-2,000.00

50 Pieces

Sample price:US$300.00/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 2 3/8" Reg

Hole Range

Dia 110 - 135 mm

Working Pressure

1.0 - 2.5MPa

Compatible Bit Shank

Cop44, DHD340, Ql40, M40, SD4, CD45

Transport Package

Ply-Wooden Cases for Exporting

Specification

3 inch to 12 inch

Trademark

Super Diamond

Origin

China

HS Code

8207199000

Key features

High Quality Material: Made of premium alloy steel with hardened procedures for secure long life.

Wide Compatibility: Compatible with Sandvik, Atlas Copco, and various bit shanks like Cop44, DHD340.

Customization Options: Customizable connection thread, hole range, working pressure, and compatible bit shanks.

Certified Quality: ISO 9001:2000/2008 certified with 100% finished product inspection.

Fast Lead Time: Generally 15-30 days production lead time with stable supply chain.

Professional Support: 15+ years experienced technicians and engineers providing quick service.

Versatile Applications: Widely used in mining, tunneling, quarrying, construction, and civil engineering.

Flexible Payment: Accepts LC, T/T, PayPal, Western Union, and small-amount payments.

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.