WSDM Series (Vacuum pump) - Woosung Vacuum Co., Ltd.

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Woosung Vacuum Co., Ltd.
[Korea]

Address:
634-4, Wondang-dong Seo-gu Incheon 404-320 Korea

Phone:
82-32-5632255

Contact name:
Sunghwan Bang , Manager

WSDM Series

	WSDM Series (Vacuum pump)

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Working Cycle of Rotary Piston Pumps

WSDM series pump is OIL TIGHT ROTARY PISTON VACUUM PUMP and designed to meet customer's requirement such as high efficiency, lower price and ling life. This products manufactured under high technology and production know-how of WOOSUNG

Its compressible range is wide from low vacuum to high vacuum, like vacuum condenser, vacuum exhaustion, vacuum plastic, vacuum dry, vacuum coating, fluorescent lamp and so on.

As you see in the picture, inside of cylinder vacuum pump consists of axis, rotor, piston, slide pin, exhaust valve and so on. Outside of the cylinder consists of gear box, rear cover, oil reservoir, base

As you see Figure - I , The gas is inhaled into the cylinder by rotation of the piston. After that, the piston be stock to the inside of the cylinder is rotated as shown in Fig - II. At this process the gas inhaled and compressed. As the exhaustion valve is opened after enough comression of atmospheric pressure, the compressed gas is extruded through the exhaustion valve. After passing the slide is restarting as Fig - I.

Oil Cooling System

Replacing and checking for exhaust valve
1) Discharge the oil reservoir 2) Separate the elbow(53) from the oil reservior and cylinder by untying bolts. 3) Separate flange(8) of the side of the cylinder 4) Unite bolts and separate valve cover(52) 5) Unite bolts(55) to fixing valve system and pull out valve system 6) If the valve system needs repair or replace cap, and disassemble all parts 7) Replace new parts 8) Assemble is the just reverse.
1. Excellent ultimate pressure
Consists of accurate parts with special design and its exhaustion speed is very high. So it can reach an excellent ultimate pressure.
2. Direct drive type
WSDM series pump with direct drive motor solved v-belt problems including periodical replacement, maintenance and pollution of the working place by
3. Air cooling method
The oil cooler is installed on the oil feeder line between pump and oil reservoir tank. So it doesn't need any other equipments as like water cooling method, much maintenance cost and frozen in the winter.
4. Less Noise and vibration
The noise and vibrations are very small owing to the specified structure design and new poduction technology.
5. Oil leakage
No oil leakage, compact design and inside oil seal enabled this.
6. Utility of the parts
Designed to use the principal parts in common that economical production is possible. And stock management and utility of the parts are better.
7 Easy oil checking
Oil check and managements are very convenient, since oil gauge, oil charging port and oil drain is located on one side of the oil reservoir
8.Easy maintenance
Able to check and repair in short time without special tool by easily designed exhaust valve. Able to clean oil reservoir tank in short time by the flange of oil reservoir tank's bottom.

Pumping Speed Curve

TECHNICAL DATA		UNIT	WSDM-5K	WSDM-7.5K
Displacement Speed	50Hz	L/Min	4200	6300
Displacement Speed	60Hz	L/Min	5000	7500
Ultimate pressure		Torr	5 x10^-3	5 x 10^-3
Inlet port		mm	VG80	VG100
Outlet port		mm	VF80	VF100
Moter power		Kw	7.5	11
Rotational speed of pump	50Hz	R.P.M	350	350
Rotational speed of pump	60Hz	R.P.M	420	420
Oil Filing		L	20	25
Weight		Kg	513	722