What is the manufacturing process?

The manufacturing process is forging.

What surface treatment is applied?

The surface treatment is polishing.

Oil Driling Rig Drill Collar for Oilfield

Name: Oil Driling Rig Drill Collar for Oilfield
Brand: Dongying Zhaoxin Industry and Trade Co, Ltd.
SKU: 2001096285

Shandong, ChinaDongying Zhaoxin Industry and Trade Co, Ltd.

US$2,000.00

5 Pieces

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

2-3/8"-5-1/2"

Manufacturing Process

Forging

Surface Treatment

Polishing

Material

Alloy

Add

No.37qilianshan Road

Transport Package

as Export Standard

Specification

2-3/8"-5-1/2"

Origin

China, Shandong, Dongying

Key features

High-Strength Steel Material: Manufactured from AISI 4145H or modified steel for optimal stress and corrosion resistance.

Specialized Drill Collar Types: Available in Slick, Spiral, and Non-magnetic variants to suit different drilling conditions.

Efficient Bit Weight Concentration: Extra-heavy design concentrates weight on the bit to break rock efficiently and keep the bit centralized.

Safe Handling Features: Equipped with slip and elevator recesses for safe and efficient handling during operations.

Anti-Sticking Spiral Design: Spiral collars reduce contact area with the hole to avoid bit sticking from differential pressure.

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

Customizable Grooves: Elevator and slip grooves can be produced upon customer's requirement.

Optional Hardbanding: Hardbanding is available as an optional feature based on customer requests.

Company profile

Dongying Zhaoxin Industry and Trade Co, Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2014-04-14 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤10.62h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryDongying Zhaoxin Industry and Trade Co., Ltd. is a China-based limited company in Shandong that manufactures and processes oilfield tools and equipment. The supplier reports ISO9001:2015, ISO14001:2015, and ISO45001:2016 certifications, a dedicated R&D team, more than 40 national patents, six to ten quality-control staff, and two production lines. It offers downhole tools, cementing tools, wellhead equipment, oil-well packers, tubing anchors, and torque anchors. The company states that it provides research, development, manufacturing, sales, and after-sales service. Export activity is documented since 2014, with markets in South America and Europe, although export sales represent only 11%–20% of total sales. Evidence is insufficient to assess financial credibility, customization capability, or specific customer cases.

Supplier typeThe supplier is a Chinese limited company engaged in manufacturing and processing machinery, specifically oilfield tools and equipment. Its stated activities cover research, development, manufacturing, sales, and after-sales service, indicating a manufacturer rather than only a trading intermediary.

CertificationsThe supplier explicitly reports ISO9000 international quality-system certification and current ISO9001:2015, ISO14001:2015, and ISO45001:2016 certificates. These certifications provide direct evidence of formal quality, environmental, and occupational-health-and-safety management systems.

After-Sales capabilityThe company explicitly states that its business includes sales and after-sales service for oilfield tools and equipment. However, the slices do not describe service coverage, staffing, response times, spare parts, or warranty terms.

R&D capabilityThe supplier reports a practical and experienced R&D team, more than 40 national patents, five years of R&D-engineer experience, and a stated focus on new products and technology. These claims directly support an established innovation function, although no patent titles or technical performance data are provided.

Production capacityThe supplier operates a manufacturing plant of 11,000 square meters, two production lines, and reports one-month order fulfillment in both off-peak and peak seasons. Its listed product scope covers multiple oilfield equipment categories, supporting production capability, although detailed capacity and equipment information is unavailable.