Belt Drive Rotary Vane Vacuum Pump <ST> Series

Abundant achievements, high reliability and durability, and variety

Features


Reliable belt-driven rotary vane vacuum pumps have been mainstays since the founding of our company, and they remain so today. Since our first models, we have made many improvements in convenience, durability and safety. In contrast to direct-coupled models, the rotational speed for these models is set to 600min–1, using pulleys of different diameters and abundant lubrication. This series has established a reputation for durability and long life.
This product line offers models that cover the spectrum of pumping speeds, from 20 to 1500L/min, in single and double compression types, and in four styles(U/T/B/P).

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UST-50

UST-150N

UST-500N

      UST-20 UST-50 UST-100 UST-150N UST-300 UST-500N
Pumping Speed L/min 50Hz 20 50 100 150 300 500
60Hz
Ultimate pressure Without ballast Pa 9.3 9.3 9.3 9.3 9.3 9.3
With ballast - - - - - -
Motor power W 65 200 250/1φ 300 400 750
300/3φ
Voltage V 1φ 100V 1φ 100V,220V 1φ 100V 1φ 100V,200V,220V
3φ 200V,220V,380V,400V
Rated rotational speed min-1 50Hz 600 600 600 600 600 600
60Hz
Oil Capacity 0.7 1.1 1.5 2.5 2.4 3
Dimensions W 395 395 469 469 469 510
D 230 230 260 292 271 334
H 295 295 315 318 407 410
Inlet - 16 16 23 23 30 30
Weight Kg 16 19 21 26 40 45
Oil mist trap Standard OMT-O-50 OMT-D-100 CT-D-150 CT-D-300 CT-D-600
OMT-D-100
Directional OMT-C-50 OMT-C-100 CT-C-150 CT-C-300 CT-C-650
OMT-C-100

TST-50

TST-150N

TST-500N

      TST-20 TST-50 TST-100 TST-150N TST-300 TST-500N
Pumping Speed L/min 50Hz 20 50 100 150 300 500
60Hz
Ultimate pressure Without ballast Pa 9.3 9.3 9.3 9.3 9.3 9.3
With ballast - - - - - -
Motor power W 65 200 250/1φ 300 400 750
300/3φ
Voltage V 1φ 100V 1φ 100V,220V 1φ 100V 1φ 100V,200V,220V
3φ 200V,220V,380V,400V
Rated rotational speed min-1 50Hz 600 600 600 600 600 600
60Hz
Oil Capacity 0.7 1.1 1.5 2.5 2.4 3
Dimensions W 230 230 230 300 300 304
D 249 249 249 314 314 384
H 520 520 550 531 660 715
Inlet - 16 16 23 23 30 30
Weight Kg 17 20 22 30 40 48
Oil mist trap Standard OMT-O-50 OMT-D-100 CT-D-150 CT-D-300 CT-D-600
OMT-D-100
Directional OMT-C-50 OMT-C-100 CT-C-150 CT-C-300 CT-C-650
OMT-C-100

Major Applications


[Physical and chemical apparatus industries] surface and mass analyzers, electron microscopes, pollution measuring instruments, vacuum (freeze) drying, 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.

Single-stage rotor type pomp only

Model Drawing
ST-20 PDF
ST-50 PDF
ST-100 PDF
ST-150N PDF
ST-300 PDF
ST-500N PDF

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
UST/TST/BST/PST-20 AC100V 1φ 65 Open drip proof type 2.8 2.4 3 (1)
UST/TST/BST/PST-50 AC100V 1φ 200 Open drip proof type 5.6 4.8 8 (1)
AC200V 3φ 200 Totally-enclosed fan-cooled type 1.26 1.1 - (3)
UST/TST/BST-100 AC100V 1φ 250 Open drip proof type 6.1 5.4 8 (1)
AC200V 3φ 300 Totally-enclosed fan-cooled type 1.7 1.5 - (3)
UST/TST/BST-150N AC100V 1φ 300 Drip proof protection type 7.7 6.6 10 (1)
AC200V 3φ 300 Totally-enclosed fan-cooled type 1.7 1.5 - (3)
UST/TST-300 AC100V 1φ 400 Drip proof protection type 8.8 8 10 (1)
AC200V 1φ 4.5 4 8 (2)
AC200V 3φ 400 Totally-enclosed fan-cooled type 2.2 2 - (3)
UST/TST-500N AC100V 1φ 750 Drip proof protection type 12 10.5 15 (1)
AC200V 1φ 6 5.2 10 (2)
AC200V 3φ 750 Totally-enclosed fan-cooled type 3.6 3.3 - (3)

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