What is the lead time for production?

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

What is the minimum order quantity?

The minimum order quantity is negotiable.

API Spec 7-1 Well Drilling Spiral Non-Magnetic Slip Groove Flex Drilling Collar

Name: API Spec 7-1 Well Drilling Spiral Non-Magnetic Slip Groove Flex Drilling Collar
Brand: Dongying Tianrui Petroleum Technology Co., Ltd.
SKU: 2069366082

Shandong, ChinaDongying Tianrui Petroleum Technology Co., Ltd.

US$1,100.00

1-99 Pieces

US$800.00

100+ Pieces

Sample price:US$1100.00/piece.Request sample

Product profile

Customization

Available

Customized

Surface Treatment

Polish

Model NO.

Drill Collar

Type

Non-magnetic Drill Collar

Standard

AISI

Usage

Oil Mining, Coal Mining, Well Drilling, Ore Mining

Material

Alloy

Color

Red/Bule/Customize

Diameter

4 1/2"-20"

Connection

API, Reg ,API, If ,Nc

Magnetic Material

P530 ,P550

Non Magnetic Material

AISI 4154h

Transport Package

Standard Export Package

Specification

customizable

Trademark

Origin

Shandong Dongying

HS Code

8431431000

Production Capacity

5000 PCS/Year

Key features

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

Non-Magnetic Material: Available in AISI 4154h, P530, and P550 magnetic materials for well drilling.

Customizable Dimensions: Diameter ranges from 4 1/2 to 20 inches with customizable color options.

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

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 with optimal resistance to stress and corrosion.

OEM and ODM Services: Full customization, minor customization, and flexible customization options available.

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: ≤1.16h

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 carried out before shipment.

Q:What services can you provide?

We accept delivery conditions like 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 are supported?

We support English, Chinese, and other languages.

Q:What are the customization options?

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