What are the available connection types?

Common connections include NC23, NC26, NC31, NC35, NC38, NC44, NC46, NC50, NC56, NC61, NC70, and REG types like 6-5/8REG.

What is the lead time for production?

The average lead time is one month, regardless of peak or off-peak seasons.

API7-1 Drill Collars Spiral Drill Collar for Drlling 4145hm

Name: API7-1 Drill Collars Spiral Drill Collar for Drlling 4145hm
Brand: Dongying Kenli Jinxiu Petroleum Machinery Co., Ltd
SKU: 1994249322

Shandong, ChinaDongying Kenli Jinxiu Petroleum Machinery Co., Ltd

US$1,200.00-5,000.00

1 Piece

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

3 Years

Warranty

3 Years

Model NO.

all size

Manufacturing Process

CNC Milling

Surface Treatment

Polishing

Operation Pressure

Atmospheric Pressure

Material

Alloy

Standard

API7-1 7-2

Connection

API Reg API If Nc

Length

9140mm 9450mm 30FT 31FT

Hard Banding

Arnco 350xt or Other

Other

4145hm

Transport Package

Steel Support

Specification

3-1/8inch---11inch

Trademark

Origin

China

HS Code

8431431000

Production Capacity

3000pieces/Years

Key features

API Standard Compliance: Manufactured strictly according to API standards for reliable performance.

High Strength Alloy Steel: Made from 4145HM modified alloy steel with superior mechanical properties.

Optimized Hardness Range: Hardness guaranteed within 285 to 341 BHN for durability and wear resistance.

Corrosion Resistant Threads: Phosphate coated threads protect against corrosion and prevent galling.

Customizable Dimensions: Length, connection type, and hard banding can be customized per customer design.

Wide Application Scope: Widely used in oil, gas, HDD, and geothermal drilling fields.

3-Year Warranty Service: Comprehensive 3-year warranty and after-sales service included.

OEM/ODM Support: OEM and ODM services available for tailored manufacturing solutions.

Company profile

Dongying Kenli Jinxiu Petroleum Machinery Co., Ltd

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2022-09-05 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.30h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryJX PETRO is a China-based factory and limited company founded in 2005, specializing in petroleum drilling and production equipment. The supplier reports API certification, ISO9001, ISO14001, and ISO45001 certifications, six production lines, professional processing and testing equipment, and a manufacturing facility of 11,000–18,000 square meters as reported in different slices. Its product range covers sucker rods, mud pumps, well control and wellhead equipment, downhole tools, handling tools, and rig accessories. The supplier has self-operated import and export rights, but exports reportedly account for only 1%–10% of sales and its primary market is domestic. Evidence supports manufacturing capability, certification, and some R&D activity, including six national patents. No sufficient evidence is provided regarding after-sales service systems, customization capability, or specific customer cases. Financial assessment is limited because financial figures are excluded.

Supplier typeThe supplier is explicitly identified as a factory and as a limited company engaged in manufacturing and supplying petroleum drilling and production equipment. Its stated establishment year is 2005, and its operations are located in Shandong, China.

CertificationsThe supplier states that it holds API certification and ISO9001:2015, ISO14001:2015, and ISO45001:2016 certifications covering quality, environmental, and occupational health and safety management. These certifications provide explicit evidence of formal management-system and product-certification coverage.

R&D capabilityThe supplier reports investment in production technology R&D and talent development, 15 professional and technical personnel, three years of R&D engineer experience, and six national patents. These statements explicitly support the existence of R&D and patent activity, although the scope and commercial impact of the innovations are not detailed.

Production capacityProduction capability is supported by six production lines, 26 large-scale processing machines, more than 20 testing devices, and a reported manufacturing area of 11,000 square meters in one slice and 18,000 square meters in another. The supplier also reports 50 production workers in its company description, while another slice lists 35 total employees, indicating inconsistent workforce data that should be verified.