ZJ Series Vacuum Pump Unit | Transformer Vacuum Drying & Evacuation

YUNENG ZJ Series vacuum pump units are designed for efficient transformer vacuum drying, evacuation, and maintenance.
Available in multiple pumping capacities from ZJ-70 to ZJ-1200, these high-vacuum systems provide stable and efficient air removal for large transformers, substations, power plants, and transformer manufacturing facilities.
The series combines rotary vane and Roots vacuum pumps to deliver high pumping speed, reliable vacuum performance, and easy operation for demanding industrial applications.

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What is the ZJ Series Vacuum Pump Unit?

Used widely for efficient vacuum drying and pumping in large transformer installation and maintenance.
The unit has a leakage rate of less than 1% equipped with anti-oil-back and automatic phase sequence systems to prevent pump reversal.
It is especially suitable for vacuuming in substations, power plants, transformer manufacturing, and various other industries like vacuum smelting, welding, chemicals, pharmaceuticals, vacuum coating, and electronics.

ZJ Series uses an air-cooled rotary vane and roots pump for efficient operation.
Achieves a working vacuum of 50Pa, with a maximum of 10Pa during operation, and an ultimate vacuum of 1-3Pa.
Quick start, high pumping speed, stability, and easy operation.
It is equipped with LCD displays, mobile features, and a user-friendly design for low noise, energy efficiency, and low operating costs.
Fully automatic with an indicator light for unattended operation and easy monitoring of the running status.

Parameter		Unit	ZJ-70	ZJ-150	ZJ-300	ZJ-600	ZJ-1200
Power Supply			50Hz 380V 3-Phase 4-Wire (or as requested)
Power		KW	4	6.5	7	11	18.5
Limit Vacuity		Pa	≤3
Pumping Speed		L/S	70	150	300	600	1200
Pumping Level			2
Connection Diameter		mm	50			80
Size	Length	mm	1200	1300	1400	1600	1750
	Width	mm	950	100	1100	1200	1300
	Height	mm	1500	1600	1700	1900	2100
Weight		Kg	300	400	500	1250	1560