API ISO Standard Polished Rod (String) for Oil Well Drilling
Polished Rods and Couplings
Polished rods and couplings are designed to handle the running torque and entire axial load generated by the weight of rod string.
Features
• Handling the complete string load;
• Transmitting sufficient torque to drive PCP;
• Ensure the sealing with drive head sealing device
• Ensure Flush-By operation
Polished Rod
A polished rod is the top rod in a rod string. It is made of carbon steel, stainless steel or other materials, mainly used to connect the oil well pumping unit and rod string.
Polished rod has the characteristics of high tensile strength, smooth surface and long service life. It can be used with sucker rods and hollow sucker rods.
Our polished rods are produced strictly in accordance with API Spec 11B. We provide three types of polished rods: ordinary polished rod, polished metal spraying rod, and single-ended upset polished rod.
Specification
| Name |
Size |
Grade |
Mechanical properties |
| Rel |
Rm |
A |
Z |
| (MPa) |
(MPa) |
(%) |
(%) |
| Polished rod-normal type |
φ25 |
H |
≥795 |
965~1195 |
≥ 10 |
≥ 45 |
| φ29 |
D |
| φ32 |
| φ38 |
≥ 590 |
795~965 |
≥ 10 |
≥ 50 |
| Diameters |
Length |
| Body Size |
Pin Size |
| inch |
mm |
inch |
mm |
inch |
| 1-1/8" |
28.58 |
5/8" |
15.88 |
8,11,16,22,24,26 |
| 3/4" |
19.05 |
| 1-1/4" |
31.75 |
7/8" |
22.23 |
11,16,22,24,26,30,36 |
| 1-1/2" |
38.1 |
1" |
25.4 |
16,22,24,26,30,36 |
• The polished rods with solid and hollow structures are available.
• The polished rods in sizes from''7/8 to 1''1/2 with various lengths are available.
Polished Rod Coupling
Polished rod coupling is designed to connect polished rod and sucker rod. Sucker rod coupling cannot be used to connect polished rod; polished rod coupling can be used to connect sucker rod.
Our team
Zhengzhou Maierda Petroleum Equipment Co., Ltd., located in Central China, is a professional supplier of oilfield equipment and tools.
Our factories has more than 15 years experiences of manufacturing oilfield equipment and tools.
Our sales team has more than 10 years importing exporting experiences in oil & gas industry.
Our products
We are specialized in such as casing centralizers, float collars and float shoes, cementing plugs, cement baskets, cementing heads, stage collars, sucker rods, drill pipes, drill collars and pumping units
our products are well sold in Mideast, North America, Latin America, Central Asia, Southeast Asia, Russia, North Africa, etc.
We are committed to providing high-quality and cost-effective products and services to our customers.
Our services
We guarantee and uphold the highest standards in customer service, client satisfaction, and quality product delivery in the oilfield industry. We are professional in many kinds of casing centralizers, float collars and float shoes, cementing plugs, cement baskets, cementing heads, stage collar, sucker rods, drill pipes, dill collars, etc.
Let's join hands and work together to create a better future!
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