COMPANY PROFILE

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, 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 planing 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.

COUPLING CATALOGUE

Yantai yunsheng manufacuturer all kinds of couplings for tubing and casing, specially for sucker rod, according to API 11B.

sucker rod coupling
type	CLASS SM 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(kg)
full size	5/8"	1 1/2(38.10)	15/16(23.81)	1.500×4.000	0.56
	3/4"	1 5/8(41.28)	1 1/16(26.99)	1.625×4.000	0.60
	7/8"	1 13/16(46.04)	1 3/16(30.16)	1.812×4.000	0.74
	1"	2 3/16(55.56)	1 3/8(34.93)	2.187×4.000	1.13
	1-1/8"	2 3/8(60.33)	1 9/16(39.69)	2.375×4.500	1.10
slim hole	5/8"	1-1/4(31.8)	15/16(23.81)	1.250×4.000	0.41
	3/4"	1-1/2(38.1)	1 1/16(26.99)	1.500×4.000	0.47
	7/8"	1-5/8(41.3)	1 3/16(30.16)	1.625×4.000	0.52
	1"	2(50.8)	1 3/8(34.93)	2.000×4.000	0.58
	1-1/8"	2-1/8(55.6)	1 9/16(39.69)	2.187×4.500	0.81
type	CLASS T COUPLING
(T)	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(kg)
full size	5/8"	1 1/2(38.10)	15/16(23.81)	1.500×4.000	0.56
	3/4"	1 5/8(41.28)	1 1/16(26.99)	1.625×4.000	0.60
	7/8"	1 13/16(46.04)	1 3/16(30.16)	1.812×4.000	0.74
	1"	2 3/16(55.56)	1 3/8(34.93)	2.187×4.000	1.13
	1-1/8"	2 3/8(60.33)	1 9/16(39.69)	2.375×4.500	1.10
slim hole	5/8"	1-1/4(31.8)	15/16(23.81)	1.250×4.000	0.41
	3/4"	1-1/2(38.1)	1 1/16(26.99)	1.500×4.000	0.47
	7/8"	1-5/8(41.3)	1 3/16(30.16)	1.625×4.000	0.52
	1"	2(50.8)	1 3/8(34.93)	2.000×4.000	0.58
	1-1/8"	2-1/8(55.6)	1 9/16(39.69)	2.187×4.500	0.81
type	SUB COUPLING
(T,SM)	spec(in)	O.D. +0.13(0.005)-0.25(-0.010)(in/mm)	Length(in)	Outer Size(in) O.D.*Length	Weight(kg)
full size	5/8"*3/4"	1 5/8(41.28)	4.500	1.625×4.500
	3/4"*7/8"	1 13/16(46.04)	4.500	1.812×4.500	0.92
	7/8"*1"	2 3/16(55.56)	4.500	2.187×4.500	1.43
	1"*1-1/8"	2 3/8(60.33)	5.000	2.375×5.000
slim hole	5/8"*3/4"	1-1/2(38.1)	4.500	1.500×4.500
	3/4"*7/8"	1-5/8(41.3)	4.500	1.625×4.500	0.61
	7/8"*1"	2(50.8)	4.500	2.000×4.500	1.10
	1"*1-1/8"	2-1/8(55.6)	5.000	2.187×5.000
Remarks:
1.The basic material of coupling is AISI 5140/4135,SM Couplings
are coated with an alloy spray metal.
2.All the above products are made according to the API Spec 11B.

WELCOM TO OUR FACTORY FOR VISITING AND FURTHER TALKING!

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.