Sucker Rod Coupling
— Joint for sucker rod, used in oilwell downhole for oil pumping and production.
Yantai Yunsheng Petroleum Machine Accessories Co., Ltd.
Founded in1997, is a professional manufaturer of API Spec 11B Sucker Rod Coupling. The first factory owning oil sucker rod coupling alloy spray aseptic technic in Yantai.
Spray metal coupling,class T coupling, SUB/ REDare avaliable here.
Material: AISI 5140
Monthly production:>=40,000pcs
Wear proof, corrosinon resisting, reducing friction
Technical Process Flow:
Preparing material—Drill hole—Heat treatment—Lathe outer circle—Smooth end face—Mill—Surface treatment—Spray weld—Lathe inner hole—Smooth end face—Lathe sunk hole—Top—Flange(phosphating)—Grind outer circle—Print mark—Packing
Spray metal sucker rod coupling
(SM) | spec(in) | O.D. +0.13(+0.005)-0.25(-0.010) (in/mm) | I.D. +0.13(+0.005)-0.25(-0.010) | Outer Size (in) O.D. *Length | Weight |
Full Size | 5/8’’ | 1 1/2 (38.10) | 15/16 (23.81) | 1.50*4.0 | 0.56kg |
3/4’’ | 1 5/8 (41.28) | 1 1/16 (26.99) | 1.625*4.0 | 0.6kg | |
7/8’’ | 1 13/16 (46.04) | 1 3/16 (30.16) | 1.812*4.0 | 0.74kg | |
1’’ | 2 3/16 (55.56) | 1 3/8 (34.93) | 2.187*4.0 | 1.13kg | |
1-1/8’’ | 2 3/8 (60.33) | 1 9/16 (39.69) | 2.375*4.5 | 1.29kg | |
Smal Hole | 5/8’’ | 1-1/4 (31.8) | 15/16 (23.81) | 1.25*4.0 | 0.41kg |
3/4’ | 1-1/2 (38.1) | 1 1/16 (26.99) | 1.50*4.0 | 0.47kg | |
7/8’’ | 1-5/8 (41.3) | 1 3/16 (30.16) | 1.625*4.0 | 0.52kg | |
1’’ | 2 (50.8) | 1 3/8 (34.93) | 2.00*4.0 | 0.58kg | |
1-1/8’’ | 2-1/8 (55.6) | 1 9/16 (39.69) | 2.187*4.5 | 0.81kg |
The Spray metal Sucker Rod Coupling: It can not only protect itself but also the rod,preventing and slowing down the wear.The coupling has many types and sizes ,and it is made of good quality steel alloy AISI 5140,covers Full sizes,Slim hole and Over size ,and has many types like Standard,Sub OD ,with Big Chamfer ,with Wrench Flat,with Bidirectional Cambered surface protection. It has three basic functions:wear proof,corrosion resisting and reducing the friction, and its lifetime is also longer,even twice of Class T coupling.
1)Smoothness: 3.1*10-3
2)Coat Thickness(in): 0.01in ~ 0.02in
3)Basic hardness: HRC 16-23
4)Surface Hardness: HRC 55-62
5)Bonding Strength(Mpa): 484
6)Hole rate: <2%
7) Min hardness of the layer: 595HV 0.2
8) Min. Tensile Strength: 655 Mpa
Other Products:
Big Chamfer rod coupling
Class T rod coupling:
SUB (Reducing sucker rod coupling, for connecting different diameter sucker rod)
Samples:
If u place interest in our products, pls not hesitate to contact me
We are in the hope to establish business relationship with you in the nearly future sincerely
API 11B COUPLING FOR ROD, SUCKER ROD , PONY ROD




