What is the lead time for production?

The peak season lead time is one month, while the off-season lead time is within 15 workdays.

What certifications does the product have?

The product is certified under ISO 9001:2000 and ISO 9001:2015 standards.

What after-sales service is provided?

We provide comprehensive after-sales service where any problem can be solved. Our team of over 30 experts offers guide services for assembly and problem-analysis.

High Strength Drill Pipe for DTH Hammer

Name: High Strength Drill Pipe for DTH Hammer
Brand: Changsha Tianhe Drilling Tools and Machinery Co., Ltd.
SKU: 2044785232

Hunan, ChinaChangsha Tianhe Drilling Tools and Machinery Co., Ltd.

US$40.00

10 Pieces

Product profile

Customization

Available

After-sales Service

Any Problem All Can Solution

Warranty

1 Year

Model NO.

73mm

Certification

ISO 9001:2000, Is0 9001:2015

Standard

Manufacturing Process

Welding

Material

Stainless Steel

Transport Package

Wooden Case

Specification

Trademark

Tinahe Drilling

Origin

Changsha

HS Code

84314320

Production Capacity

5000

Key features

High Strength Material: Constructed from first-class special alloy steel and 4145H alloy for superior strength and wearability.

Wide Application Range: Ideal for water wells, geothermal drilling, mining, and foundation projects with hole sizes 3.5-48 inches.

Flexible Customization: Offers minor, sample, design, and full customization options to meet specific project requirements.

Comprehensive Warranty: 1-year warranty covering material and machining defects with full responsibility for quality issues.

Professional Support: Over 30 experts provide assembly guidance and problem-analysis services for reliable operation.

Strict Quality Control: 100% visual and functional inspection with traceable raw materials and 11 QA/QC inspectors.

Reliable Design: Simple structure ensures easy casing follow-through, effortless operation, and extended service life.

Global Market Presence: Trusted in Northern Europe, Russia, Southeast Asia, South Africa, and Oceania for diverse drilling needs.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Changsha Tianhe Drilling Tools and Machinery Co., Ltd.

Hunan, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 17 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤8.04h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company rather than a professional technical supplier. It provides 3D software design, ODM, and multiple customization options, including full customization and customization from samples or designs. Product inspection procedures are documented and consistently followed, while supplier-service assessments and corrective-action procedures are also documented. The company has inventory capability, export experience, and has participated in the Perumin exhibition, but it has no overseas agents, branches, warehouse, showroom, or stated overseas service coverage. Innovation evidence includes new products introduced during the past year and ODM availability, but there is no SDK and no OEM service for popular brands. Manufacturing capacity has a stated contractual deficiency involving related subcontractors. Digital-management information is mixed: ERP use is reported, while broader digital-process construction is reported as not yet started. No certification, financial...

Supplier typeThe supplier is explicitly classified as a trading company and is also stated not to be a professional technical supplier. However, it provides 3D software design services, so its role includes service coordination beyond simple product trading.

After-Sales capabilityThe supplier reports inventory capability and offers training, repair, equipment installation, maintenance, and debugging. However, it has no overseas agents or branches, no overseas warehouse or showroom, and states zero countries for overseas service coverage, limiting evidence of an established international after-sales network.

R&D capabilityInnovation-related evidence includes new products within the past year, ODM services, 3D software design, and broad customization. Nevertheless, the supplier has no available SDK, does not provide OEM services for popular brands, and reports that broader enterprise digital-process construction has not started, although ERP use is also reported.

Production capacityOperational controls are supported by documented and consistently followed finished-product inspection instructions, written supplier-service assessment procedures with records, and corrective/preventive-action procedures. The supplier also reports inventory capability, but explicitly lacks a valid contract between the factory and related subcontractors, which is a stated manufacturing-governance deficiency.

Customization capabilityThe supplier explicitly supports minor customization, customization from samples, customization from designs, full customization, and flexible customization. This is direct evidence of broad customization capability.

Product Q&A

Q:What is the warranty period?

We provide a 1-year warranty. We guarantee full responsibility for any quality issues arising from material or machining defects.

Q:What materials are used for the drill pipe?

The drill pipe is constructed from first-class special alloy steel, offering high strength, heat resistance, and wearability. The adapter is made from 4145H alloy.

Q:What are the available customization options?

We offer minor customization, customization from samples, customization from designs, full customization, and flexible customization options.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 piece.

Q:What are the payment terms?

We accept LC, T/T, PayPal, Western Union, small-amount payment, and D/P.