| Piston Type Vacuum PumpLike as Figure1-2.(a), there are composed of the rotor made Like as Figure1-2.(a), there are composed of the rotor made and the back cover.When the rotor rolls, the air is inhaled into the cylinder through the Inlet port. This process continues until Figure1-2-(b)- and the air is started compressing as passing the state of Figure1-2- (b)-, After compressing completely (about over 850 Torr ), the compressed air is extruded through the exhaustion valve.Product Feature1. Guarantee the excellent vacuum degree with the perfect sealing design and the remaining air exhaustion design2. Simple structure and excellent replacement3. High durability4. In comparison with other pumps of same exhaustion quantity the size noise and vibration are lower.5. WOO SUNG vacuum pumps do not need any special techniques as a simple structure design for assembling.6. WOO SUNG undertakes the continuous after sales service upon the management of a continuous products delivery. | 
