The sucker rod is a steel rod that used to make up the mechanical assembly between the surface and downhole components of a rod pumping system.
The product conforms to API Specification 11B (Oil extraction rod Standard) and other related standard, authorized to use the API monogram.
All sizes of sucker rod (standard, heavy, polish rod) which conform to API specification latest version 11B are available in grade K, C, D and HL.
Adopting the advanced production line crack detecting, quenching, the continuous overall tempering and sand blasting processes to
achieve higher mechanical strength ability with overall good performance.The thread is cut by the special-purpose numerical
control lathe which keeps the rod body still when cutting the threads. The special process could ensure the high precision of the
thread with better reliability and life-span
Puyang Zhongshi Group Company Ltd was founded in 1996,which is the restructured enterprise of Central Plains oilfield branch
company of SINOPEC . The company registered capital is 6083 million yuan,with annual output value 200 million yuan, 580 employees,
including more than 160 technical and administrative staff. Oil machinery is our main products, the leading products include
pumping unit,subsurface sucker rod pump, wellhead (Christmas Tree), pressure vessels,drilling solid control series products and
cementing accessories, We had attained ISO 9001 in 1998 and API Certificates in 2002 .
We have 9 factories, more than 500 employees, and many kinds of production equipments.
We have certificates of API 5CT,6A,10D,11AX,11E, ISO 14001 and 9001.
With 10 years exporting experience,we have exported to more than 30 countries such as
America,Canada,Russia,Venezuela,Columbia,Thailand,Indonesia ,UAE,Saudi Arabia,Kazakhstan etc.