sucker rod couplings

1)Type: full size sucker rod coupling,class SM 

2)New: Both-way Protection Globoidal Coupling Full size SM coupling with big chamfer

3)Material: High quality Carbon steel AISI 5140

4)Coating:Spray Material Ni60A Alloy Coating

5)Basic Hardness: HRC 16-23

6)Surface Hardness: HRC 55-62

7)Hole rate: 2%

8)Min. Hardness of the layer: 595HV0.2

9)Standard: API Spec 11B

10)Coupling diameter: 5/8",3/4",7/8",1",1-1/8"

11)Weight: 0.74 kg/pc

12)Package: wooden cases

13)Payment Terms: T/T

Moreover, Yunsheng sucker rod couplings include Class T sucker rod coupling , Full size sucker rod coupling,slim hole sucker rod coupling,SUB sucker rod coupling,UHS sucker rod couplings

if you are interested in any of sucker rod couplings, pls contact us freely for further information.

We could also manufacture sucker rod coupling according to clients' requests

Yantai Yunsheng Petroleum Machine Accessories Co. Ltd., founded in 2005, is a professional manufacturer of API Spec 11B Sucker Rod Couplings, including Spray Metal coupling, class T coupling, Sub OD coupling, with various type of Full size, Slim Hole, Over Size, with Big Chamfer, with Wrench Flat, with Bidirectional Cambered Surface Protection, etc., and the thread size are available at 5/8", 3/4", 7/8", 1", 1-1/8".  Owning world top level equipments and technicians, the monthly production capacity is more than 20,000pcs.  All of our couplings are excellent in Quality and reasonable in Price, and the production & inspection are being done fully in accordance with API Spec11B standard.