Vacuum Generators

A vacuum generator, also known as a suction pump or ejector, is a type of pump that removes molecules of air and gas from a sealed volume leaving behind a partial vacuum and are also able to move fluids from one area to another. Find out more in our complete guide to vacuum pumps.

Vacuum pumps devices are suitable for various processes that require vacuums such as an engineering or manufacturing process or they may be used to move liquids from one location to another, just like conventional pumps. Vacuum generators may also have a built-in exhaust silencer to keep generator noise to a minimum.

Types of Vacuum Generators

The vacuum is produced either pneumatically (ejectors) or electrically (pumps). Pneumatic vacuum generators implement short cycle times and can be integrated directly into the system due to their compact and lightweight design. Ejectors offer functions for energy and process control. Electrical vacuum generators are used in applications when compressed air is not available or if very high suction capacities are required.

Momentum transfer pump - this is where the air or gas is transferred from the inlet to the exhaust side of the pump.

Entrapment pump - these pumps capture gases in a confined space. They are cooled and condensed and then removed in a solid state.

Positive displacement pump - this vacuum pump has an expanding cavity on the suction side of the pump and a decreasing cavity on the discharge side. The same volume is moved in each cycle so it delivers consistent capacities. These pumps are suited to applications that need moderate flow and moderate pressure like food manufacturing.

Diaphragm pump - work in a similar way to positive displacement pumps and are often used for fluid transfers for filling and dispensing as they are very accurate.

How do you choose a vacuum generator?

Before purchasing a vacuum generator, there are a few factors to consider:

  • Intended application, what type of workpiece - porous, air-tight
  • Energy efficient options - a lower case electricity, compressed air
  • Pump size and weight restrictions
  • Maintaining cycle times- short cycle times, ejector
  • Performance requirements

Applications:

  • Semiconductor processing
  • Air conditioning
  • Flight instruments
  • Composite moulding
  • Uranium enrichment
  • Print presses
  • Medical applications

...
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Description Price Manufacturer Series Nozzle Diameter Silencer Maximum Vacuum Pressure Maximum Input Pressure Maximum Suction Flow Vacuum Gauge Maximum Operating Temperature Minimum Operating Temperature Exhaust Port Size Inlet Port Size Operating Pressure Outlet Port Size
RS Stock No. 203-9863
Mfr. Part No.OVEL-7-H-15-PQ-VQ4-UA-C-A-B2V-H3
BrandFesto
TWD6,656.00
Each
units
OVEL 0.7mm - 4.5bar 4bar 17L/min - - - - - 7bar -
RS Stock No. 204-0125
Mfr. Part No.VN-05-L-T3-PQ2-VQ2-RO1
BrandFesto
TWD1,299.00
Each
units
VN 0.45mm - 8bar 6bar 15.7L/min - - - - - 1 to 8bar -
RS Stock No. 204-0110
Mfr. Part No.OVEL-5-H-10-PQ-VQ4-UA-C-A-V1PNLK-H3
BrandFesto
TWD7,810.00
Each
units
OVEL 0.45mm - 4.2bar 4bar 4L/min - - - - - 2 to 7bar -
RS Stock No. 202-2408
Mfr. Part No.VN-07-H-T3-PQ2-VQ2-RO1-B
BrandFesto
TWD5,340.00
Each
units
VN 0.7mm - 4.4bar 6bar 16.2L/min - - - - - 2-8bar -
RS Stock No. 203-6297
Mfr. Part No.VN-05-M-T3-PI4-VI4-RI4
BrandFesto
TWD1,058.00
Each
units
VN 0.45mm - 6bar 6bar 6.1L/min - - - - - 1 to 8bar -
RS Stock No. 204-0111
Mfr. Part No.OVEL-7-H-15-PQ-VQ4-UA-C-A-V1PNLK-H3
BrandFesto
TWD8,099.00
Each
units
OVEL 0.7mm - 4.5bar 4bar 17L/min - - - - - 2 to 7bar -
RS Stock No. 202-2409
Mfr. Part No.VN-05-H-T2-PQ1-VQ1-RQ1
BrandFesto
TWD1,058.00
Each
units
VN 0.45mm - 4.5bar 6bar 6.2L/min - - - - - 1-8bar -
RS Stock No. 176-5414
Mfr. Part No.ZH07DSA-06-06-06
BrandSMC
TWD723.00
Each
units
ZH 0.7mm - -90kPa 0.45MPa 12L/min - +50°C -5°C - - - 6 mm
RS Stock No. 203-9864
Mfr. Part No.OVEL-7-H-15-PQ-VQ4-UA-C-A-V1B-H3
BrandFesto
TWD6,656.00
Each
units
OVEL 0.7mm - 4.5bar 4bar 17L/min - - - - - 7bar -
RS Stock No. 841-5166
Mfr. Part No.S80-000-923
TWD5,313.00
Each
units
S80 19.1mm Yes 847mbar - 3398L/min - +204°C -73°C - - 3.5bar -
RS Stock No. 203-6189
Mfr. Part No.VN-05-L
BrandFesto
TWD752.20
Each (In a Pack of 5)
units
VN 0.45mm - 8bar 6bar 13.6L/min - - - - - 1 to 8bar -
RS Stock No. 204-0126
Mfr. Part No.VN-05-L-T4-PQ2-VQ2-O2-P
BrandFesto
TWD4,920.00
Each
units
VN 0.45mm - 8bar 6bar 13.6L/min - - - - - 1 to 8bar -
RS Stock No. 202-2419
Mfr. Part No.VN-05-M-T3-PQ2-VQ2-RO1
BrandFesto
TWD1,251.00
Each
units
VN 0.45mm - 6bar 6bar 6.1L/min - - - - - 1-8bar -
RS Stock No. 203-6250
Mfr. Part No.VN-20-H-T6-PQ4-VQ5-RO2
BrandFesto
TWD4,160.00
Each
units
VN 2mm - 3.5bar 6bar 98L/min - - - - - 1 to 8bar -
RS Stock No. 203-6140
Mfr. Part No.VN-07-M-T3-PI4-VI4-RI4
BrandFesto
TWD1,110.00
Each
units
VN 0.7mm - 7bar 6bar 13.5L/min - - - - - 1 to 8bar -
RS Stock No. 203-6266
Mfr. Part No.OABM-H
BrandFesto
TWD330.00
Each
units
OABH - - - - - - - - - - - -
RS Stock No. 202-2415
Mfr. Part No.VN-14-H-T4-PQ2-VQ3-RQ3
BrandFesto
TWD1,292.00
Each
units
VN 1.4mm - 5bar 6bar 51.6L/min - - - - - 1-8bar -
RS Stock No. 183-7525
Mfr. Part No.ZU05SA
BrandSMC
TWD670.00
Each
units
ZU05 0.5mm - -90kPa 0.45MPa 7L/min - +50°C -5°C - - - -
RS Stock No. 203-6224
Mfr. Part No.VN-05-H
BrandFesto
TWD752.20
Each (In a Pack of 5)
units
VN 0.45mm - 4.9bar 6bar 7.2L/min - - - - - 1 to 8bar -
RS Stock No. 203-6298
Mfr. Part No.VN-07-H-T3-PI4-VI4-RI4
BrandFesto
TWD1,110.00
Each
units
VN 0.7mm - 4.7bar 6bar 16L/min - - - - - 1 to 8bar -