Stabilize and stabilize the shape, quickly extract the vaporized products of the lost foam out of the cavity to ensure the soundness of the casting.

Model	Maximum pumping capacity：m³/min	vacuum：mmHg	Motor power：Kw
ZK-06	6	0-700	11
ZK-12	12	0-700	18.5
ZK-20	20	0-700	37
ZK-43	43	0-700	55
ZK-86	86	0-700	2×55

The system has the functions of stable pressure, filtering gas, distributing oil and gas, and separating soda water, etc. The main function is to make the dry sand solid and round when casting casting, and to draw out the gasification products of vanishing mold in time. To obtain a full cast. Vacuum negative pressure system is one of the main equipment used in dry sand negative compaction mold casting process. Three unit with a negative pressure casting machine design and manufacturing, and from the early separate to the overall modular, simple and compact structure, easy installation, maintenance is convenient, but also reduces the pumping vacuum pipeline resistance, improve the efficiency of the use of equipment, with independent of negative pressure control cabinet, by controlling the action of negative pressure unit, is a negative pressure unit in accordance with the requirements of the casting casting process to produce vacuum, and through the distributor when the negative pressure units produce vacuum negative pressure stage of distribution, and then distributed to each need vacuum vacuum point.
The system is economical and practical, simple and compact in structure, easy to install and easy to maintain. It can also be used in other industries where vacuum is needed.