JZJLG系列真空機組，是以羅茨真空泵為主泵，螺桿真空泵為前級泵，漁過電接點真空表來實現羅茨真空泵，螺桿真空泵自動啟停，自動保護真空系統的真空獲得設備。廣泛應用于電子行業。它除了具有般羅茨真空泵機組的特點外， 由于采用螺桿真空泵作為前級泵，不僅真空度離，還能提離真空清潔度，特別適合抽除遇油反應的氣體和無壓縮凝固性的氣體。 是目前取代立式無油真空機組的最佳選擇。

JZJLG series vacuum unit 1s based on Roots vacuum pump as the main pump. The Screw vacuum pump 1s the front stage pump. The Roots vacuum pump is realized by the electric contact vacuum table. The Screw vacuum pump automatically starts and stops, and 

the automatic protection vacuum system The vacuum gets the equipment. Widely used 1n electronics, vacuum coating, chemical fiber metallurgy, heat treatment, welding, chemical and otherindustries

In addition to the characterist1cs of the general Roots vacuum pump unit, 1t also improves the vacuum cleanliness by using the Screw vacuum pump as the foreline pump. It is especially suitable foremoving oils and non-compressed coagulating gases