Product features:

· According to the feature of coalbed methane drainge, design a pumping unit of developing coalbed methane for a special purpose.

· Product design and manufacture implement API SPEC 11E specification and China petroleum industry standard CB/T29021, through API and industry certification.

· Adopting speed regulating motor, stroke frequency adjusting is independent stepless adjustment.

· Based on the structure of the four-bar beam pumping unit, simple structure, compact design, convenient installation and maintenance, and good energy-saving effect.

· Based on the compound balance, easy to adjust and adapt to the large range of load.

· Using the special calculation software to optimize the design of dimension parameter, the motion performance is excellent and the working is stable and reliable. 

· Using the design concept of modularization, high universalizable.