Product Name: sucker rod, polished rod, and accessories
We specialize in manufacturing and supplying a wide range of conventional pump rods and polished rods. Our rod offerings include different grades of steel such as C, K, D, KD, H, HL, HY, and more. Our polished rods undergo meticulous polishing or chrome-plating and are coated with a layer of tungsten alloy. In addition to rods, we also offer a variety of accompanying accessories, including sucker rod nipples, couplings, nylon couplings with adjustable diameters, roller and nylon centralizers, polished rod clips, sealing devices, and various other products.
Sucker rods are commonly used in the extraction of oil and play a crucial role in transmitting power within the oil well system. These rods undergo a series of processes such as testing, straightening, and forging before being utilized. They are typically positioned between the polished rod and the oil well pump. Our sucker rods are made from high-quality carbon steel and alloy steel, adhering to the API Spec 11B standard. They are available in different types, including common sucker rods, hollow sucker rods, and FRP sucker rods. Sucker rod couplings are used for connecting these rods. Furthermore, we offer various specifications of sucker rods to meet different environmental conditions and applications.
Sucker rod specifications and main dimensions
| Specification |
Diameter of rod body
(mm)
|
Thread nominal diameter
(in)
|
outside diameter
(mm)
|
Wrench width
(mm)
|
Length(m) |
| 5/8” |
16 |
5/16 |
31.8 |
22.2 |
---- |
| 3/4” |
19 |
11/16 |
38.1 |
25.4 |
| 7/8” |
22 |
13/16 |
41.3 |
25.4 |
| 1” |
25 |
13/8 |
50.8 |
33.3 |
| Specification |
Connecting rod size
(mm)
|
Thread nominal diameter
(mm)
|
outside diameter
(mm)
|
Length |
Grade |
| 5/8 T |
16 |
15/16 |
38.1 |
101.6/4 |
T |
| 3/4 T |
19 |
1/16 |
41.3 |
| 7/8 T |
22 |
3/16 |
46.0 |
| 1 T |
25 |
3/8 |
55.6 |
Variable diameter coupling picture
Variable diameter coupling specification and main size
| Specification |
Thread nominal size |
outside diameter
(mm)
|
Length |
Grade |
| YJG5/8-3/4 |
15/16-11/16 |
41.3 |
101.6/4 |
T |
| YJG3/4-7/8 |
11/16-13/16 |
46.0 |
| YJG7/8-1 |
1 3/16-1 3/8 |
55.6 |
Company Information
Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC. Our group have 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC.
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001. Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.
