Working principle

Through the motor’s positive-negative rotating to drive the cycloidal two-speed reducer and drive the drum forward and reverse rotating, which makes the polish rod linked with belt that covering drum do vertical reciprocating motion, then polish rod drives the pump swabbing oil. One end of belt links with polish rod, another end links with counterweight box. According to the indicator diagram or running current curve to adjust the weight of counterweight box, realizing precise balance

Applicable conditions

This type pumping unit is not only suitable for conventional oil pumping, and suitable for large displacement oil extraction, small pump depth-pumping and heavy oil, high pour-point oil, injection well, cluster deviated well.

 

Model	Rated rod capacity （KN）	Rated torque of reducer（KN·M）	Stroke frequency （min-1）	Stroke （M）	Motor power（KW）	Weight of whole machine（T)	Dimensions （L×W×H）（m）
ZDGCJ-50-4-2	50	22	0.3-3	3	11	10.3	3.4×1.6×7.2
ZDGCJ-80-4-3	80	28	0.3-3	0-4	15	11.5	3.4×1.8×7.2
ZDGCJ-100-6-3	100	31	0.3-3	0-6	22	15.6	4.65×2.24×10.23
ZDGCJ-120-6-3	120	38	0.3-3	0-6	30	18.5	4.65×2.24×10.23
ZDGCJ-140-6-3	140	62	0.3-3	0-7	37	20.6	4.65×2.35×10.85
ZDGCJ-200-8-3	200	155	0.3-3	0-8	75	26	4.65×2.4×14.85