The compound balancing system is adopted to decrease the force on the pitman and pumping jack and ensure the pumping unit running more smoothly.

• 采用复合平衡系统 ,可显著降低抽油机连杆和支架的受力 ,提高整机运转平稳性 ,减少振动和噪声 ,在小泵深抽采油工艺中 ,节能效果尤佳。