Direct Drive Rotary Vane Vacuum Pump <DW> Series

Standard direct drive pump having abundant achievements

Features


DW series incorporate Gaede-type rotaryvane pumps. This series pumps are direct-coupled oil-sealed rotary pumps using two-stage rotor compression.
The rotational speed for this type is higher than for belt-driven models, because motor rotation is transmitted directly to the pump.
DW series supply 7 types of 50 to 1300(60 to 1500)L/min from which customer can select models to meet specification.(60Hz)

      DW-60 DW-120 DW-185Ⅱ DW-360 DW-720
Pumping Speed L/min 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
50 60 100 120 155 185 300 360 600 720
Ultimate pressure Without ballast Pa 6.7✕10-2 6.7✕10-2 6.7✕10-2 6.7✕10-2 6.7✕10-2
With Ballast   6.7 6.7 6.7 6.7 6.7
Motor power W 200 300 400 750 1500
Voltage V 1φ 100V 3φ 200V,220V,380V,400V
Rated rotational speed min-1 1440 1730 1420 1710 1410 1690 1440 1730 1445 1740
Oil Capacity 0.9 1.0 1.8 2.2 2.8
Dimensions W 425 490 541 597 664
D 185 185 210 244 258
H 271 285 380 358 358
Inlet mm/A 16 23 23 30 VG-40A
Weight Kg 18 22 33 34 65
Oil mist trap Standard OMT-O-50 CT-D-100 CT-D-300 CT-D-300 CT-D-600
OMT-D-100
Directional OMT-C-50 OMT-C-100 CT-C-300 CT-C-300 CT-C-650
OMT-C-100
      DW-960 DW-1500
Pumping Speed L/min 50Hz 60Hz 50Hz 60Hz
800 960 1300 1500
Ultimate pressure Without ballast Pa 6.7✕10-2 6.7✕10-2
With Ballast   6.7 6.7
Motor power W 1500(6P) 2200
Voltage V 3φ 200V 3φ 200V
Rated rotational speed min-1 960 1150 1460 1755
Oil Capacity 7.0 7.0
Dimensions W 837 827
D 325 312
H 576 626
Inlet mm/A VG-50A VG-50A
Weight Kg 115 115
Oil mist trap Standard Attached
(Oil mist trap outlet: Rp(PS)2)
Attached
(Oil mist trap outlet: Rp(PS)2)
Directional

* Corrosion-resistant type DW-C series is also availavle. (Special surface treatment Clean-S)

Major Applications


[Physical and chemical apparatus industries] surface and mass analyzers, electron microscopes, pollution measuring instruments, research and development apparatuses.
[Electrical and electronic industries] fabrication equipment for electron tubes, CRTs, relays, substrates, semiconductors, and flat panels; degassing, baking, drying, deposition, sputtering, defoaming.
[Food industries] vacuum distillation, concentration, degassing, vacuum (freeze) drying, vacuum packaging.
[Chemicals and pharmaceuticals] oil distillation, fat, petroleum, and plasticizers; degassing, deodorization, dewatering, freeze drying of pharmaceuticals.
[Energy] degassing, drying, and impregnation of various electrical cells, such as manganese or lithium ion secondary cells.
[Optical industries] fabrication equipment for lenses, mirrors, and half-mirrors; coating, sputtering.
[Industrial machines] resin injection, forming, defoaming, impregnation, packing, backup pump for evacuation equipment (turbo, diffusion, mechanical booster).

Operating Precautions


Standard operating conditions
1. Kinds of suction gas: air or inert gas.
2. Suction gas temperature: 10 to 40℃
3. Ambient temperature: 10 to 40℃ /Humidity 75% or less

Please consult with us before using products under the following conditions.
1. Pumping corrosive or combustible gas; chemicals, solvent , powders, or water vapor.
2. Operating pressure of 1000Pa or higher.
3. Fluctuating vacuum and atmospheric pressure.

Periodically check pump oil for contamination and proper levels.
When turning off the pump, restore atmospheric pressure in the pump to prevent backflow.
A large amount of oil mist is generated in the pressure ranges between atmospheric pressure and approximately 133Pa. We recommend using an oil mist trap to prevent leakage.

Motor Specifications


Model Power supply Standard motor specifications Rated electric current value (A) Thermal rated value(A) Power supply connection  Special electric motor correspondence
Output (W) Enclosure types  50Hz 60Hz
DW-60 AC100V 1φ 200 Open drip proof type 5.6 4.8 8 (1) ×
DW-120 AC100V 1φ 300 Drip proof protection type 7.7 6.6 10 (1) ×
DW-185II AC200V 3φ 400 Totally-enclosed fan-cooled type 2.2 2 - (4)
DW-360 AC200V 3φ 750 Totally-enclosed fan-cooled type 3.8 3.4 - (4)
DW-720 AC200V 3φ 1500 Totally-enclosed fan-cooled type 6.8 6.4 - (4)
DW-960 AC200V 3φ 1500 Totally-enclosed fan-cooled type 7.6 6.8 - (4)
DW-1500 AC200V 3φ 2200 Totally-enclosed fan-cooled type 10.6 9.4 - (4)

*(1)Switch+Plug (2)Switch+Cord (3)Cord only (4)Terminal only