Yantai Yunsheng Petroleum Machine Accessories Co., Ltd, founded in 1997, is a professional manufacturer of API 11B sucker rod couplings, including Spray Metal coupling, class T coupling, Altra High Strength,Sub OD coupling, with various spec. of Full size, Slim Hole, grand chamfer, Two-way camber, etc. With world top level equipments and technicians, the monthly production capacity is more than 20,000pcs. All of our products are excellent in quality and low in price, which satisfied many of our customers home and overseas. Recently years, we invest over 13,000 square meters in area and USD1.5 million planning to produce API 11B sucker rod. We are API 11B Certificate Approval Company, Golden supplier of Alibaba.com and the best supplier you can trust in China.

The SPRAY METAL sucker rod coupling is processed with some special technology, coated a layer of abrasion-proof, wear-proof and lessening friction coat. It can't 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 40cr.It has three functions : wear proof, corrosion-resisting and reducing the friction.


Sucker Rod Couplings's Advantage:

(1) Steel Bar For Raw Material : AISI 5140 for API sucker rod couplings or AISI 4140 for UHS sucker rod couplings

(2) CNC machining centre

(3) Extrusioncasting Thread

(4) not big company, promotly answering your offers and accepting little orders

 
(5) Professional manufacturer and the capacity monthly :30,000 pcs