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. 203-6184
Mfr. Part No.OVEM-14-H-B-GO-CE-N-1P
BrandFesto
$1,124.12
Each
units
OVEM 1.4mm - 3.6bar 6bar 50.5L/min - - - - - 2 to 8bar -
RS Stock No. 203-9891
Mfr. Part No.OVEM-14-H-B-QO-OE-N-2N
BrandFesto
$1,463.78
Each
units
OVEM 1.4mm - 3.6bar 6bar 50.5L/min - - - - - 8bar -
RS Stock No. 203-9654
Mfr. Part No.CPV14-M1H-V95-1/8
BrandFesto
$313.66
Each
units
CPV 0.95mm - -0.9bar 8bar - - - - - - 8bar -
RS Stock No. 203-6261
Mfr. Part No.VN-07-M-I2-PQ1-VQ1
BrandFesto
$57.56
Each
units
VN 0.7mm - 7bar 6bar 13.5L/min - - - - - 1 to 8bar -
RS Stock No. 202-2422
Mfr. Part No.VN-10-L-T3-PI4-VA4-RO1
BrandFesto
$76.49
Each
units
VN 0.95mm - -0.89bar 6bar 62.7L/min - - - - - 1-8bar -
RS Stock No. 203-6195
Mfr. Part No.VN-20-L-T6-PQ4-VA5-RO2
BrandFesto
$258.67
Each
units
VN 2mm - 3bar 6bar 188L/min - - - - - 1 to 8bar -
RS Stock No. 203-6254
Mfr. Part No.VN-10-H-T4-PQ2-VQ2-O2-P
BrandFesto
$258.67
Each
units
VN 0.95mm - 3.5bar 6bar 21.8L/min - - - - - 1 to 8bar -
RS Stock No. 203-6221
Mfr. Part No.OVEM-14-H-B-QO-CE-N-LK
BrandFesto
$1,571.80
Each
units
OVEM 1.4mm - 3.6bar 6bar 50.5L/min - - - - - 2 to 8bar -
RS Stock No. 203-6227
Mfr. Part No.VN-05-H-T3-PQ2-VQ2-RO1-A
BrandFesto
$117.61
Each
units
VN 0.45mm - 4.9bar 6bar 7.2L/min - - - - - 1 to 8bar -
RS Stock No. 203-6236
Mfr. Part No.OVEM-14-H-B-GO-CE-N-2P
BrandFesto
$1,482.31
Each
units
OVEM 1.4mm - 3.6bar 6bar 50.5L/min - - - - - 2 to 8bar -
RS Stock No. 203-6201
Mfr. Part No.VN-05-H-T3-PI4-VI4-RO1
BrandFesto
$64.87
Each
units
VN 0.45mm - 4.5bar 6bar 6.2L/min - - - - - 1 to 8bar -
RS Stock No. 176-5401
Mfr. Part No.ZH20DLA-03-04-04
BrandSMC
$182.60
Each
units
ZH 2mm - -66kPa 0.45MPa 155L/min - +50°C -5°C RC 1/2 - - -
RS Stock No. 203-6294
Mfr. Part No.VN-05-H-T3-PI4-VI4-RI4
BrandFesto
$54.86
Each
units
VN 0.45mm - 4.5bar 6bar 6.2L/min - - - - - 1 to 8bar -
RS Stock No. 202-2443
Mfr. Part No.VN-07-L-T4-PQ2-VQ2-O1-P
BrandFesto
$252.00
Each
units
VN 0.7mm - -0.88bar 6bar 30.9L/min - - - - - 1-8bar -
RS Stock No. 203-6286
Mfr. Part No.VN-30-H-T6-PQ4-VA5-RO2
BrandFesto
$312.60
Each
units
VN 3mm - 3.7bar 6bar 186L/min - - - - - 1 to 8bar -
RS Stock No. 202-2420
Mfr. Part No.VN-05-L-T2-PQ1-VQ1-RQ1
BrandFesto
$54.86
Each
units
VN 0.45mm - -0.88bar 6bar 15.7L/min - - - - - 1-8bar -
RS Stock No. 203-6125
Mfr. Part No.VN-05-L-T3-PQ2-VQ2-RO1-M
BrandFesto
$184.89
Each
units
VN 0.45mm - 5bar 6bar 13.6L/min - - - - - 2 to 8bar -
RS Stock No. 203-6191
Mfr. Part No.VN-05-N-I3-PQ2-VT2
BrandFesto
$54.86
Each
units
VN 0.45mm - 6bar 6bar 12L/min - - - - - 1 to 8bar -
RS Stock No. 202-2431
Mfr. Part No.VN-10-H-T4-PQ2-VA5-RO2
BrandFesto
$106.92
Each
units
VN 0.95mm - 4.5bar 6bar 25L/min - - - - - 1-8bar -
RS Stock No. 204-3333
Mfr. Part No.ZK2A10K5TLA-08
BrandSMC
$462.64
Each
units
ZK2A 10mm Yes -0.91bar 0.35bar 56L/min - - - - - - -