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: ≤1.06h

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.

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.