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Based on the spray metal sucker rod coupling, sucker rod coupling with big chamfer increases a big chamfer at both ends, greatly reducing the contact area with the pipeline, but also slowing down the wear. So it can not only protect itself better, but also the pipeline.  so that the life of the coupling and pipeline are significantly Prolonged,and the operating costs of oil reduced, oil production increased.

API Sucker Rod Coupling with Big Chamfer

1) Standard: API Spec 11B

2) Basic Material: AISI5140(high quality carbon steel )

3) Coat Material:Ni60A Alloy Coating

4)Type: full size and slim hole

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

All in all, this kind of coupling can more greatly avoid the the scratches damage and wear & corrosion damage on the pipeline wall during the touch between coupling cylindrical surface and the end face, then the life of the coupling and pipeline are significantly prolonged,what's more,the operating costs of oil reduced, oil production increased.

If you are intrested in our sucker rod couplings or have any request, pls contact us freely for further information.

We'll assure you of our best service all the time.

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.