How do you guarantee product quality?

We provide pre-production samples, conduct final inspections before shipment, and perform 100% visual inspection.

What payment and delivery terms are accepted?

Accepted payments include T/T, L/C, PayPal, etc. Delivery terms include FOB, CIF, FAS, DDP.

What is the lead time for production?

The average lead time is one month for both peak and off-season periods.

API 7-1 Twz-3HS Nmdc Drilling Rig Non Magnetic Drill Collar

Name: API 7-1 Twz-3HS Nmdc Drilling Rig Non Magnetic Drill Collar
Brand: Dongying Tianrui Petroleum Technology Co., Ltd.
SKU: 2081887572

Shandong, ChinaDongying Tianrui Petroleum Technology Co., Ltd.

US$1,600.00

1-99 Pieces

US$900.00

100+ Pieces

Sample price:US$1600.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Repair

Warranty

Two Years

Model NO.

Drill Collar

Manufacturing Process

Forging

Surface Treatment

Polishing

Operation Pressure

Atmospheric Pressure

Material

Alloy

Color

Red/Bule/Customize

Diameter

4 1/2"-20"

Connection

API, Reg ,Fh, If ,Nc,Tx39 etc

Magnetic Material

P530 ,P550

Non Magnetic Material

AISI 4154h

Available

Drill Collar Available

Groove

Stress Reflief Groove

Application

S: Energy & Mining,Well Drilling,Metallurgy Llury

Transport Package

Standard Export Package

Specification

API Spec 7-1

Trademark

Origin

Shandong Dongying

HS Code

8431431000

Production Capacity

5000 PCS/Year

Key features

API 7-1 Certified Quality: Manufactured strictly according to API Spec 7-1 and SY5411/SY5144 standards.

Non-Magnetic Material: Made from AISI 4154H alloy steel with P530/P550 non-magnetic properties.

High Strength & Durability: Cold-rolled finish ensures optimal resistance to stress, corrosion, and cracking.

Customizable Specifications: Color, diameter (4.5-20 inch), and connection types are fully customizable.

2-Year Warranty Coverage: Comprehensive two-year warranty with repair services included.

24/7 Online Support: Provided with 24-hour online maintenance guidance and technical support.

Multi-Connection Options: Supports API, Reg, FH, IF, NC, TX39, and other standard connections.

Factory Direct Supply: Direct from Dongying Tianrui Petroleum Technology with 100% inspection.

Company profile

Cooperated with Fortune 500High Repeat Buyers ChoiceImporters and Exporters

Dongying Tianrui Petroleum Technology Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.56h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with 3D software design and multiple customization options. Its business covers petroleum machinery, hydraulic components, mechanical equipment services, electrical equipment, instruments, chemical products, and camping houses. Quality and sustainability credentials include ISO9001:2015, ISO45001:2018, and ISO14001, while documented quality procedures, raw-material traceability, and two inspectors support basic quality control. The supplier has in-stock capacity, a one-month average lead time in both peak and off-season, and 12 qualified service-capability suppliers. However, it lacks an available SDK, valid manufacturing-capacity contracts with factories or related subcontractors, overseas warehouses, overseas showrooms, overseas agents or branches, and offline trade-show experience. Corrective-action and complaint procedures exist but lack written records. Financial information is represented only by reporting years, so financial...

Supplier typeThe supplier is explicitly identified as a professional technical supplier. Its stated scope includes petroleum machinery and accessories, hydraulic components, mechanical equipment services, electrical equipment, instruments, and related products, indicating a technically oriented industrial supplier.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications, and earlier company information states that quality, environmental, and occupational health and safety management system certifications were obtained in 2014. These records provide explicit evidence of certification holdings.

R&D capabilityThe supplier is described as having professional technical R&D capability and can provide 3D software design services, which supports design and technical development capability. However, no SDK is available, indicating a limitation in SDK-based development or integration.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. The same range is supported in the design-services capability record, providing clear evidence of broad customization capability.