How is the product inspected before shipment?

We perform ultrasonic inspection on all sections and 100% visual and function inspections on finished products.

What payment terms are accepted?

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

What shapes are available for the Kelly?

The Kelly is available in both square and hexagonal shapes.

High Quality API Oil Drilling Tools Full Size Square Hexagonal Rotary Kelly

Name: High Quality API Oil Drilling Tools Full Size Square Hexagonal Rotary Kelly
Brand: Tianhe Oil Technology Co., Ltd.
SKU: 1942217991

Heilongjiang, ChinaTianhe Oil Technology Co., Ltd.

US$6,000.00

1-9,999 Pieces

US$200.00

10,000+ Pieces

Product profile

Customization

Available

Length

8.84-9.75m

Usage

Oil Mining, Well Drilling

Model NO.

Z03-130000

Material

High Manganese Steel

Product Name

Rotary Kelly

Bottom Connection

Nc26 85.7

Top Connection(Lh)

7 3/4"

I.D.(in)

1 1/4

Payment

T/T

Transport Package

Standard

Specification

6 5/8 REG LH 7 3/4

Trademark

Tianhe

Origin

China

HS Code

8431431000

Production Capacity

5000000

Key features

API Standard Compliance: Manufactured to API specifications with precision-milled flats and tight tolerances.

High Strength Material: Made from AISI 4145H-modified alloy steel with Brinell hardness of 285-341BHN.

Comprehensive Quality Inspection: Includes ultrasonic inspection on all sections and 100% visual and function checks.

Customization Options: Offers full customization, minor customization, and options from samples or designs.

Fast Lead Time: Peak and off-peak season lead times are both within 15 working days.

Durable Protective Packaging: Shipped in protective steel-cased scabbards with pressed steel thread protectors.

Versatile Connection Types: Available with various top and bottom connections including REG, FH, and NC series.

Manufacturer Direct Supply: Direct supply from a manufacturer with 20 years of export experience and 14 production lines.

Company profile

High Repeat Buyers ChoiceExhibition ExperienceQuality AssurancePrivate Mold

Tianhe Oil Technology Co., Ltd.

Heilongjiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 20 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier operates in oil drilling, workover, cementing, completion, mining machinery, and related technical services. It has documented production equipment, quality-control procedures, product traceability, complaint-handling procedures, and customization options ranging from sample-based work to full customization. The supplier reports recent new-product development and ODM services, but is not identified as a professional technical supplier and does not provide 3D software design or SDK services. It holds ISO9001:2015, ISO45001:2018, ISO14001, and other certifications. Financial records are identified for 2020–2022, but their contents are not provided. Overseas warehouse, showroom, agent, or branch capabilities are absent. No specific customer cases are disclosed.

Supplier typeThe supplier is explicitly not classified as a professional technical supplier, while its stated business scope covers production, R&D, sales, maintenance, leasing, and technical services for oil drilling, workover, cementing, completion, and mining equipment. This indicates an equipment-focused industrial supplier with related technical-service activities rather than a dedicated professional technical-services provider.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, ISO14001, and other certifications. These certifications provide explicit evidence of quality, occupational health and safety, and environmental management certification.

After-Sales capabilityThe business scope includes maintenance and technical services, and the supplier has a clear, followed procedure for handling customer complaints. However, it has no overseas warehouse, showroom, overseas agent, or overseas branch, so international service coverage is limited based on the available evidence.

R&D capabilityThe supplier reports new products within the past year and provides ODM services, indicating active product-development capability. However, it does not provide 3D software design services, has no available SDK, and is explicitly not classified as a professional technical supplier, which limits the demonstrated scope of innovation support.

Production capacityThe supplier has a broad equipment base including tempering, carburizing and nitriding furnaces, lathes, milling and boring machines, CNC machining centers, and impact-testing equipment. Finished-product inspection instructions are uniformly followed, and the supplier reports 20 years of export experience with 41%–50% of sales from exports.

Customization capabilityBoth records explicitly list customization from samples, customization from designs, minor customization, and full customization. This demonstrates a broad stated customization range covering limited modifications through fully customized products.