Can the drill collars be customized?

Yes, customization is available for color, diameter (4.5"-20"), connection types, and material selection.

What are the lead times?

The average lead time is one month during both peak and off-peak seasons.

API 7-1 String Tools Slips Non-Magnetic Spiral Drill Collars for Oil Drilling Tools

Name: API 7-1 String Tools Slips Non-Magnetic Spiral Drill Collars for Oil Drilling Tools
Brand: Dongying Tianrui Petroleum Technology Co., Ltd.
SKU: 2069555222

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

Non-Magnetic Material: Constructed from AISI 4154H or P530/P550 for optimal resistance to stress and corrosion.

Spiral Design: Reduces contact area to prevent bit sticking caused by differential pressure.

Customizable Dimensions: Available in diameters from 4.5 inches to 20 inches with various connection types.

Elevator and Slip Grooves: Optional grooves on box thread face for use as lifting sub and safety slip.

Hardbanding Option: Hardbanding is available upon customer request for enhanced durability.

Cold Rolled Finish: Unique process strengthens structure on ID and OD surfaces for mechanical performance.

Two-Year Warranty: Comprehensive two-year warranty coverage for all mechanical equipment.

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: ≤0.77h

AI-Powered supplier vetting

SummaryThe supplier is a professional technical provider with strong R&D and 3D design capabilities, offering extensive customization services. They lack overseas presence and SDK availability, but maintain ISO certifications. Their financial credibility over the last three years is documented, although lacking specific figures. Manufacturing capacity is limited by the absence of valid contracts with subcontractors. They have procedures for quality control but lack written records for corrective actions.

Supplier typeThe supplier is a professional technical provider involved in petroleum machinery, hydraulic components, and camping house manufacturing. They offer 3D design services.

CertificationsThe supplier holds certifications in quality management (ISO9001:2015), environmental management (ISO14001), and occupational health and safety (ISO45001:2018).

Production capacityThe supplier lacks valid contracts with subcontractors, limiting manufacturing capacity.

Customization capabilityThe supplier offers extensive customization options, including full customization from samples and designs.

Product Q&A

Q:How do you guarantee quality?

Pre-production samples are always available before mass production, and final inspection is always carried out before shipment.

Q:What services can you provide?

We accept delivery conditions including FOB, CIF, FAS, DDP, and express. Payment currencies include USD, AUD, Euro, and RMB. Payment types accepted are T/T, L/C, MoneyGram, credit card, PayPal, Western Union, and cash.

Q:What is the after-sales service?

We provide 24-hour online maintenance guidance service.

Q:What languages do you support?

We support English, Chinese, and other languages.

Q:What is the warranty period?

We provide a comprehensive two-year warranty for all our mechanical equipment.