How are the products packaged for shipping?

We use plywood cases and pallets to protect products and avoid damage during transportation. Custom packaging is also available.

What transportation methods are available?

Transportation can be arranged by air, by express, or by sea according to your specific requests.

What is the working pressure range for these hammers?

The working pressure ranges from 1.0-3.0Mpa for smaller models (RE531, RE004, etc.) to 1.5-3.5Mpa for larger models (RE545, RE547, etc.).

Re531 Reverse Circulation Drill Bit

Name: Re531 Reverse Circulation Drill Bit
Brand: Changsha Chaojingang Machinery Manufacturing Co., Ltd.
SKU: 1912858235

Hunan, ChinaChangsha Chaojingang Machinery Manufacturing Co., Ltd.

US$50.00-2,000.00

1 Piece

Sample price:US$1000.00/piece.Request sample

Product profile

Customization

Available

Transport Package

Ply-Wooden

Specification

3", 4", 4.5", 5", 5.5"

Trademark

Super Diamond

Origin

China

HS Code

8207199000

Key features

Premium Quality Materials: Made of high-quality steel with premium hardened procedures for extended service life.

Full Production Chain: Ensures stable supply and prompt production lead time for all orders.

Customization Options: Accepts customization from samples, designs, or full customization to meet specific needs.

Strict Quality Control: 100% inspection of finished products including visual and function checks before shipping.

ISO9001 Certified: Manufacturer holds ISO9001:2015 certification ensuring standardized management systems.

Experienced Team: Backed by senior technicians and experienced workers with years of industry expertise.

Global Reputation: Trusted by customers worldwide including Brazil, Peru, South Africa, Australia, and more.

Flexible Packaging: Standard plywood cases and pallets; custom packaging available upon special request.

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: ≤4.07h

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.