1. vacuum air extractorfor transformer drying. 2. two stage vacuum pump ( one rotary vacuum pump and one roots vacuum pump).

Feature of vacuum air extractor:

(1)    Quick starting, high pumping rate, stable performance, easy-handling.

(2)    The unit takes Roots Pump as main pump and spinning vacuum pump as pre-stage pump.

(3)    A vacuometer is used to meter and control vacuum of pumped container.

(4)    The unit adopts French Schineider Electric as control element.

(5)    Full-automatic and non-presence of operation with lamps indicating the condition of operation.

(6)    Humanization design, low noise, less energy expenditure, economical to circulate cost.

Technical Parameter List

Model Unit		ZJ-70	ZJ-150	ZJ-300	ZJ-600	ZJ-1200
Pumping Rate(L/S)		70	150	300	600	1200
Vacuum Limit(Pa)		≤7	≤7	≤7	≤5	≤5
Operating Vacuum(Pa)		≤133
Pumping Stage No.		2	2	2	3	3
Net Weight (kg)		450	600	900	1200	1500
Overall Dimensions	length	1000	1200	1200	1300	1500
	width	600	650	700	800	1000
	height	1400	1500	1600	1800	1900

ZJ double stage vacuum air extractor