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. 204-0138
Mfr. Part No.VN-07-M-T2-PI2-VI2-RI2
BrandFesto
$57.56
Each
units
VN 0.7mm - 5.8bar 6bar 13.5L/min - - - - - 1 to 8bar -
RS Stock No. 203-6194
Mfr. Part No.VN-20-H-T6-PQ4-VA5-RO2
BrandFesto
$258.67
Each
units
VN 2mm - 3.5bar 6bar 98L/min - - - - - 1 to 8bar -
RS Stock No. 203-9895
Mfr. Part No.OVEM-20-H-C-QO-CE-N-LK
BrandFesto
$1,709.05
Each
units
OVEM 2mm - 4bar 6bar 98L/min - - - - - 8bar -
RS Stock No. 203-9658
Mfr. Part No.CPV18-M1H-VI140-2GLS-1/4
BrandFesto
$490.00
Each
units
CPV 1.4mm - -0.9bar 10bar - - - - - - 10bar -
RS Stock No. 203-6196
Mfr. Part No.OABM-MK-G3
BrandFesto
$15.00
Each
units
OABM - - - - - - - - - - - -
RS Stock No. 203-6273
Mfr. Part No.VN-20-L-T6-PQ4-VQ5-RO2
BrandFesto
$215.73
Each
units
VN 2mm - 3bar 6bar 188L/min - - - - - 1 to 8bar -
RS Stock No. 203-6190
Mfr. Part No.VN-05-M-I3-PQ2-VT2
BrandFesto
$54.86
Each
units
VN 0.45mm - 6bar 6bar 6.1L/min - - - - - 1 to 8bar -
RS Stock No. 204-3338
Mfr. Part No.ZK2A10K5HLA-08
BrandSMC
$552.56
Each
units
ZK2A 10mm Yes -0.91bar 0.35bar 56L/min - - - - - - -
RS Stock No. 203-9897
Mfr. Part No.OVEM-30-H-C-QO-CE-N-1PD
BrandFesto
$1,659.48
Each
units
OVEM 3mm - 4bar 6bar 181L/min - - - - - 8bar -
RS Stock No. 202-2445
Mfr. Part No.VN-14-H-T4-PI4-VI5-RI5
BrandFesto
$67.02
Each
units
VN 1.4mm - 5bar 5bar 51.6L/min - - - - - 1-8bar -
RS Stock No. 203-6138
Mfr. Part No.OVEM-10-H-B-QO-CE-N-1P
BrandFesto
$901.78
Each
units
OVEM 0.95mm - 3.5bar 6bar 19.5L/min - - - - - 2 to 8bar -
RS Stock No. 203-6244
Mfr. Part No.VN-07-L-T4-PQ2-VQ2-O2-P
BrandFesto
$252.00
Each
units
VN 0.7mm - 4bar 6bar 30.9L/min - - - - - 1 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. 203-9861
Mfr. Part No.OVEL-5-H-10-PQ-VQ4-UA-C-A-V1V-H3
BrandFesto
$330.99
Each
units
OVEL 0.45mm - 4.2bar 4bar 4L/min - - - - - 7bar -
RS Stock No. 176-5400
Mfr. Part No.ZH10DSA-01-01-01
BrandSMC
$58.71
Each
units
ZH 1mm - -90kPa 0.45MPa 26L/min - +50°C -5°C RC 1/8 RC 1/8 - RC 1/8
RS Stock No. 204-0133
Mfr. Part No.VN-05-N-T3-PI4-VI4-RO1
BrandFesto
$64.87
Each
units
VN 0.45mm - 8bar 6bar 12L/min - - - - - 1 to 8bar -
RS Stock No. 203-6197
Mfr. Part No.OVEM-05-H-B-QO-CE-N-1P
BrandFesto
$864.68
Each
units
OVEM 0.45mm - 5.1bar 6bar 6L/min - - - - - 2 to 8bar -
RS Stock No. 203-6272
Mfr. Part No.VN-20-L
BrandFesto
$57.172
Each (In a Pack of 5)
units
VN 2mm - 8bar 6bar 184.4L/min - - - - - 1 to 8bar -
RS Stock No. 204-3329
Mfr. Part No.ZK2A07K5PLA-08
BrandSMC
$462.64
Each
units
ZK2A 0.7mm Yes -0.91bar 0.35bar 34L/min - - - - - - -
RS Stock No. 203-6270
Mfr. Part No.VN-10-L
BrandFesto
$43.214
Each (In a Pack of 5)
units
VN 0.95mm - 8bar 6bar 41.5L/min - - - - - 1 to 8bar -