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3/4" Spray Metal Rod Coupling and Full Size Sucker Rod Coupling
US$5.00
1 Piece
Sample price:US$4.00/piece.Request sample
Product profile
Customization
AvailableAfter-sales Service
YesWarranty
1 YeaModel NO.
7/8Manufacturing Process
CNC MillingSurface Treatment
GalvanizedOperation Pressure
VacuumMaterial
AlloyProduct Name
Sucker Rod CouplingTransport Package
Wooden CaseSpecification
SM SH(3/4", 7/8", 1")Trademark
zxOrigin
ChinaHS Code
8431431000Production Capacity
3000PCSKey features
Cold Form Rolled Threads: Uses cold form rolling to create compressive stress, maximizing strength at the thread root.
Advanced Thermal Spraying: Melts Ni alloy on surface to reduce friction coefficient to 0.01 and improve service life.
Hydrogen Embrittlement Resistance: Made from 5140 alloy steel, offering high resistance to hydrogen embrittlement.
Multiple Size Options: Available in full size, slim hole, and over size configurations for various needs.
ISO Certified Manufacturing: Company holds ISO-9001, ISO-14001, and OHSAS-18001 certifications for quality assurance.
OEM and ODM Services: Customization services available including product name customization for sucker rod couplings.
High Hardness and Low Friction: Effective combination of high hardness coating and low friction for oil exploitation.
Comprehensive Quality Testing: Equipped with fluorescent magnetic particle flaw detector and various mechanical testers.
Company profile

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: ≤15h 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.
Product Q&A
Q:What material is used for Class T couplings?
A:
Class T couplings are manufactured using AISI 5140 alloy steel.
Q:How does the thread cutting process improve strength?
A:
We use cold form rolling instead of material removal, creating compressive stress at the thread root for maximum strength.
Q:What is the recommended replacement schedule for couplings?
A:
We recommend changing sucker rod couplings after three make-ups, provided the threads are inspected and acceptable.
Q:What sizes are available for these couplings?
A:
Couplings are available in full size, slim hole, and over size, with combination sub-couplings for different diameters.
Q:What is the friction coefficient after thermal spraying?
A:
The advanced thermal spraying technology reduces the friction coefficient between the anti-wear collar and oil pipe to 0.01.
Send Inquiry
*To:
Dongying Zhaoxin Industry and Trade Co, Ltd.
Dongying Zhaoxin Industry and Trade Co, Ltd.*Content:
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