What is a vacuum generator and how does it work?

A vacuum generator is a device that utilizes compressed air to create a vacuum. It operates based on two fundamental principles of fluid dynamics: the Venturi effect and Bernoulli's principle. As compressed air enters and accelerates through a narrowed section of the venturi nozzle, Bernoulli's principle explains that the pressure of the air decreases, which the Venturi effect then utilizes to convert the kinetic energy of the moving air into a potential energy vacuum. This dual-principle operation makes vacuum generators highly effective for applications requiring quick and reliable vacuum creation.

What are the advantages of pneumatic vacuum generators?

Pneumatic vacuum generators offer several benefits including compact design, ease of installation, low maintenance, and energy efficiency. They are particularly suitable for applications with limited space and where electrical power may not be readily available.

How do electric and pneumatic vacuum generators differ?

Electric vacuum generators use an electric motor to drive a pump that creates vacuum. In contrast, pneumatic vacuum generators use compressed air passing through a venturi to create vacuum. Electric generators are generally more powerful and quieter, but pneumatic types are simpler, more compact, and often more cost-effective.

What are the typical applications of vacuum generators?

Vacuum generators are widely used in industrial applications such as robotics, pick-and-place systems, material handling, packaging, and automation processes. They are essential in providing the suction needed to manipulate objects.

Can you provide information on the maximum vacuum level a vacuum generator can achieve?

The maximum vacuum level achievable by a vacuum generator depends on its design and operating conditions, but typically, these devices can create vacuum levels up to 85-90% (or -85 to -90 kPa). For specific product capabilities, refer to the product specifications.

What maintenance is required for vacuum generators?

Vacuum generators require minimal maintenance. Regular checks for air leaks, blockages, and ensuring clean air supply are generally sufficient to maintain optimal performance.

How does a vacuum generator affect electricity usage in an industrial setting?

Electric vacuum generators consume electrical power based on their motor size and usage pattern. Pneumatic vacuum generators, while powered by compressed air, can influence overall energy efficiency by the air compressor's electrical usage. It’s important to select the right type based on your facility's power and air supply infrastructure.

What are the differences between a vacuum generator and a vacuum ejector?

A vacuum generator and a vacuum ejector refer to essentially the same device in different contexts. Both use compressed air to create a vacuum but may vary slightly in design based on their specific application or industry terminology.

How do I choose the right vacuum generator for my application?

Selecting the right vacuum generator involves considering factors such as the volume and frequency of vacuum needed, the environmental conditions, power availability, and specific application requirements like speed and precision. Consult with a specialist or refer to detailed product specifications to match your needs.

How can I maintain and enhance the performance of my vacuum generator?

To keep your vacuum generator operating at its best, regular maintenance and the right components are crucial. If you're dealing with a filter that's seen better days or valves that could use an upgrade for more efficient performance, having access to quality replacement parts is key. You'll find everything from durable vacuum pumps that form the core of your system’s functionality, to meticulously designed vacuum fitting parts that ensure everything is perfectly sealed. Don’t overlook our comprehensive range of vacuum-related devices, which are essential for any enhancements or repairs your setup might require. These components are vital for maintaining the high standards of performance and reliability your industrial applications rely on.

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Vacuum Generators, Vacuum Ejectors（Air Supply Port Connecting Port Shape：M5）

Vacuum generators and ejectors are machines that generate a vacuum. Vacuum generation methods are different, and vacuum generators are used to create a vacuum using compressed air and carry it by suction. When the compressed air flows into the diffuser, it is jetted at a high speed and the pressure drops, creating a vacuum. It is composed of a nozzle and a diffuser, and the degree of the vacuum pressure changes depending on the shape and dimensions. Ejectors, on the other hand, use water, steam, oil, etc. to create a vacuum. This is a mechanism in which the material that has been heated and turned into steam is injected at a high speed, so that the lower stage is compressed. It consists of jets, cylinders, boilers, pipe heaters, heat insulators with different widths, etc. The ejected steam is cooled and returns to the boiler again. Shapes and performances vary depending on the type, such as those with a solenoid valve, elbow type, and compact type.

Configure

Specification/Dimensions

Additional Function
- Silencers
- Filter
- Valves For Vacuum Generation
- Reverse Check Valve (Vacuum Retention)
- Mechanical Type, Pressure Switch for Vacuum
- With LED Display, Pressure Switch for Vacuum
- Air Timer Type Vacuum Release Valves
- Vacuum Destructive Valve
- Vacuum Destruction Support
- Central Exhaust Specification
- Not Provided
Clear

Type
- Direct Electromagnetic Valve Mounting Type Elbows
- Direct Electromagnetic Valve Mounting Type Straight
- Pipe Type
- Square
- Pad Direct Mounting Type, Elbow
- Pad Direct Mounting Type, Straight
- Unit
- Related Components
Details

Clear

Ultimate Vacuum(kPa)
-93.1

-93

-92

-91.8

-91

-90.4

-90

-89

-88

-87

-86.7

-86

-85

-84

-80

-78

-74

-67

-66.5

-66

-57

-53

-48

-47

-5.0

-2

0 to -101.3

88

90

92
Clear

Suction Flow(l/min)
1

1.8

2

3

3.2

3.5

4

4.5

5

6

7

7.5

8

9

10

10.5

11

11.5

12

12.5

13

15

16

18

20

21

22

23

24

25

26

27

28

29

30

32

34

35

36

37

38

39

40

42

44

45

46

47

50

52

54

55

56

58

61

63

66

67

68

72

74

75

76

78

80

82

83

84

85

88

89

90

95

95$36$42

95$42

95$42$24

95$42$40

95$42$70

95$42$84

95$42$180

95$63$42

95$110$42

100

104

105

110

123

128

130

132

136

140

155

160

174

180

200

225

250

300

305

350

600

740
Clear

Air Supply Port Connecting Port Shape
- M5
- Rc1/8
- R1/8
- R1/4
- G1/8
- 1/8-27 NPT
- M3
- Rc1/4
- M6
- R3/8
- R1/2
- One-Touch Coupling
- One-Touch Fitting Elbow
- Rc3/8
- NPT3/8
- NPTF1/8
- NPT1/4
Clear

Vacuum Port Connecting Port Shape
- M5
- Rc1/8
- R1/8
- R1/4
- R3/8
- M3
- Rc1/4
- M6
- R1/2
- One-Touch Coupling
- One-Touch Fitting Elbow
- Others
- Rc3/8
Clear

Vacuum Port One-Touch Fitting Size
1/2 (ø12.7)

1/4 (Ø6.35)

1/8 (ø3.18)

Ø1.8

ø2

Ø3

3/8 (ø9.53)

ø3.2

Ø4

5/16 (Ø7.94)

5/32 (Ø3.97)

Ø6

Ø8

Ø10

Ø12

Ø16
Clear

Air Supply Port One-Touch Fitting Size
- Ø3
- Ø4
- Ø6
- Ø8
- Ø10
- 5/32 (Ø3.97)
- 1/4 (Ø6.35)
- 5/16 (Ø7.94)
- 3/8 (ø9.53)
Clear

Nozzle Dia.
0.3mm

0.4mm

0.5mm

0.6mm

0.7mm

1.0mm

1.2mm

1.5mm

2.0mm

2.5mm

3.0mm

Others
Drawing

Clear

Application
- Single Item
- Manifolds
Clear

Air Consumption Flow Rate(l/min)
3.5

3.5 (N.C.) / 4 (Latching)

3.5 (N.C.) / 4 (latching)

3.7

4.5

6.5

6.5 (N.C.) / 8.5 (Latching)

6.5 (N.C.) / 8.5 (latching)

7.4

8

10

11.5

12

13

13.2

14

17

18

21

22.5

22.6

23

23$46$150

23$70$150

23$150

23$150$200

23.5

24

27

28

30

33

34

35

40

42

44

45

46

47

47.5

48

48.5

50

52

53

57

58

60

63

70

79.5

84

85

86

88

90

100

100$23$150

102

110

113

126

145

150

155

160

162

180

194

196

200

265

270

300

385
Clear

Type of Related Component
- Holders / Brackets
- Replacement Filters
- Pressure Switches for Maintenance Components
- Manifold Base
- Block Plates
- Vacuum Fall Prevention Valves
- Manifold
- Valve Unit
- Ejector Unit
- Valve Body Ass'y
- Supply Valve (N.O.)
- Release Valve (N.C.)
- Vacuum Port Adapter Ass'y
- Filter Element
- Sound Absorbing Material
- Pressure Sensor Ass'y
- Ejector Component Part
- Solenoid Valve
- Vacuum Pressure Switch
Clear

Brand	(0) (0) CHELIC (0) CKD (0) ESCO (0) FESTO (0) KOGANEI (0) MYOUTOKU (0) PISCO (2) SMC (6)
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Days to Ship	All Same day 1 Day(s) or Less 3 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less Others

8 items

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Space Saving Vacuum Ejector ZQ Series (ZQ105/ZQ107/ZQ110)

SMC

Easy-to-use vacuum pressure switch.
[Features]
・ Improved operability with push button type
・ Vacuum pressure switch with LED display function
・ Up to 10 units can be copied simultaneously
・ The setting value of the master side (copy source) sensor can be copied to the slave side sensor
・ Reduction of setting labor-hours
・ Reduces setting value input errors

From: ฿ 1,587.80
Days to Ship: Same day

Same day

Compare

Vacuum Unit, Ejector System ZX Series

SMC

A vacuum unit ejector system best suited to small precision components.
[Features]
· Electronic components weighing up to 100 g.
· Modular design makes it possible to combine the most suitable functions.
· Compact and lightweight (120 g with complete set), which makes it ideal for installing actuators.
· Ejector nozzles available in 0.5 to 1.0‑mm diameters (suction flow rate 5 to 22 L/min [ANR]).
· Capable of manifolding.

From: ฿ 609.45
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Space Saving Vacuum Ejector / Vacuum Pump System, ZQ

SMC

ZQ Series space saving vacuum ejector and pump system.
[Features]
· Easy-to-use vacuum pressure switch.
· Push button type for easier operation.
· Can copy up to 10 switches simultaneously.
· Settings for the master side (copy source) sensor can be copied to slave side sensors.
· Reduces the amount of time required for setting and helps prevent setting mistakes.
· Body format: for single units (ZQ1000U) / for manifold type (ZQ1000M).

From: ฿ 1,587.80
Days to Ship: 23 Day(s)

23 Day(s)

Compare

Compact Vacuum Unit ZB Series

SMC

[Features]
· Quick response: valve response time of 5 ms, vacuum response time of 28 ms
· Energy-saving: 17% reduction in air consumption, 21% increase in vacuum pressure reached
· Compact and lightweight: 46 g
· Equipped with vacuum pressure switch; can copy up to 10 switches simultaneously

From: ฿ 2,958.00
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Vacuum Unit, Vacuum Pump System ZX Series

SMC

Vacuum unit and vacuum pump system capable of manifolding.
[Features]
・ For electronic parts and small accessory precision parts up to 100 g
・ Ideal combination of functions possible due to modular design
・ Compact and lightweight (120 g when full set of functions) makes it ideal for actuator mounting

From: ฿ 2,241.45
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Single Unit Type Solenoid Valve Direct Mount Elbow Type Open Air Type

Until 31/03/2025

Single Unit Type Solenoid Valve Direct Mount Elbow Type Open Air Type

PISCO

Provides a rich selection of types with differing capabilities and shapes. *CAD data for this series is being revised. Data will be made available as soon as modifications are complete.

[Features]
· Allows changing from compressed air to vacuum, and can be used for transporting the workpieces by combining with a vacuum pad.
· Wide range of types with different performance and shape are available to meet a variety of requirements.
· VH, VS, VU and VC types have been added for applications requiring "no copper-based metal use" and "low concentration ozone measures."
· No copper-based metals are used in the metal member materials, and HNBR is used for the rubber sealing material.

From: ฿ 447.93
Special Price
Days to Ship: 1 Day(s)

1 Day(s)

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Vacuum/Release Unit VQD1000-V Series

SMC

A vacuum/release module that does not require a restrictor circuit for release air.
[Features]
· Response speed 13 msec (at 500 mm*).
· 18.5 msec (at 1,000 mm*).
*Distance from module to the workpiece.
· Smooth detachment of workpieces without over-shoot.
· No workpiece blowout caused by release air.
· No need to adjust the timing when switching between vacuum and positive pressure (single signal control).
· N.O. specification (vacuum adhesion type when not energized) and N.C. specification (vacuum shut-off type when not energized) can be selected.

From: ฿ 3,262.30
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Single Unit Type: Electromagnetic valve direct attachment model, elbow type, concentrated exhaust

Until 31/03/2025

Single Unit Type: Electromagnetic valve direct attachment model, elbow type, concentrated exhaust

PISCO

and provides a rich selection of differing shapes and capabilities. *The CAD data for this series is being revised. This data will be made available as soon as the modifications have been completed.

[Features]
· Allows changing from compressed air to vacuum, and can be used for transporting items by combining with a vacuum pad.
· Provides a rich lineup of differing capabilities and shapes, which allows meeting diverse conditions.
· VH, VS, VU and VC types have been added for applications requiring "no copper-based metal use" and "low concentration ozone measures."
· No copper-based metals are used in the metal component materials, and HNBR is utilized for the rubber sealing material.

From: ฿ 477.63
Special Price
Days to Ship: Same day

Same day


Brand
Product Series
CAD
From
Days to Ship
Additional Function
Type
Ultimate Vacuum(kPa)
Suction Flow(l/min)
Air Supply Port Connecting Port Shape
Vacuum Port Connecting Port Shape
Vacuum Port One-Touch Fitting Size
Air Supply Port One-Touch Fitting Size
Nozzle Dia.
Application
Air Consumption Flow Rate(l/min)
Type of Related Component

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025
Brand	SMC	SMC	SMC	SMC	SMC	PISCO	SMC	PISCO
Product Series	Space Saving Vacuum Ejector ZQ Series (ZQ105/ZQ107/ZQ110)	Vacuum Unit, Ejector System ZX Series	Space Saving Vacuum Ejector / Vacuum Pump System, ZQ	Compact Vacuum Unit ZB Series	Vacuum Unit, Vacuum Pump System ZX Series	Single Unit Type Solenoid Valve Direct Mount Elbow Type Open Air Type	Vacuum/Release Unit VQD1000-V Series	Single Unit Type: Electromagnetic valve direct attachment model, elbow type, concentrated exhaust
CAD		2D / 3D		2D / 3D	2D / 3D
From	฿ 1,587.80	฿ 609.45	฿ 1,587.80	฿ 2,958.00	฿ 2,241.45	฿ 447.93 Special Price On Sale Until 31/03/2025	฿ 3,262.30	฿ 477.63 Special Price On Sale Until 31/03/2025
Days to Ship	Same day	3 Day(s)	23 Day(s)	3 Day(s)	3 Day(s)	1 Day(s)	3 Day(s)	Same day
Additional Function	Silencers / Filter	Silencers / Filter / Valves For Vacuum Generation / Mechanical Type, Pressure Switch for Vacuum / With LED Display, Pressure Switch for Vacuum / Vacuum Destructive Valve / Vacuum Destruction Support / Central Exhaust Specification	Silencers / Filter	Silencers / Filter / Vacuum Destructive Valve	Filter / Valves For Vacuum Generation / Mechanical Type, Pressure Switch for Vacuum / With LED Display, Pressure Switch for Vacuum / Vacuum Destructive Valve	Silencers	Valves For Vacuum Generation / Vacuum Destructive Valve	Central Exhaust Specification
Type	Unit	Unit / Related Components	Unit	Unit	Unit	Direct Electromagnetic Valve Mounting Type Elbows	Unit	Direct Electromagnetic Valve Mounting Type Elbows
Ultimate Vacuum(kPa)	-80	-84	0 to -101.3	-90 ～ -86	-	-90 ～ -66	-	-90 ～ -66
Suction Flow(l/min)	5 ～ 22	5 ～ 22	-	2 ～ 7	-	7 ～ 12	16	7 ～ 12
Air Supply Port Connecting Port Shape	M5	M5	M5	M5	M5	M5	M5	M5
Vacuum Port Connecting Port Shape	M5 / One-Touch Coupling / One-Touch Fitting Elbow	M5	M5 / One-Touch Coupling / One-Touch Fitting Elbow	One-Touch Coupling / One-Touch Fitting Elbow	M5	One-Touch Coupling	M5	One-Touch Coupling
Vacuum Port One-Touch Fitting Size	ø3.2 ～ Ø6	-	Ø4 ～ Ø6	1/8 (ø3.18) ～ 5/32 (Ø3.97)	-	Ø4	-	Ø4
Air Supply Port One-Touch Fitting Size	-	-	-	-	-	-	-	-
Nozzle Dia.	0.5mm ～ 1.0mm	0.5mm ～ 1.0mm	-	0.3mm ～ 0.6mm	-	0.5mm	-	0.5mm
Application	Single Item	Single Item / Manifolds	Single Item	Single Item	Single Item	Single Item	Manifolds	Single Item
Air Consumption Flow Rate(l/min)	14 ～ 46	13 ～ 46	-	3.5 (N.C.) / 4 (Latching) ～ 18	-	11.5	-	11.5
Type of Related Component	-	Ejector Component Part / Valve Unit	-	-	-	-	-	-

Related Categories to Vacuum Generators, Vacuum Ejectors

FAQ Vacuum Generators, Vacuum Ejectors

Question: What is a vacuum generator and how does it work?: Answer: A vacuum generator is a device that utilizes compressed air to create a vacuum. It operates based on two fundamental principles of fluid dynamics: the Venturi effect and Bernoulli's principle. As compressed air enters and accelerates through a narrowed section of the venturi nozzle, Bernoulli's principle explains that the pressure of the air decreases, which the Venturi effect then utilizes to convert the kinetic energy of the moving air into a potential energy vacuum. This dual-principle operation makes vacuum generators highly effective for applications requiring quick and reliable vacuum creation.
Question: What are the advantages of pneumatic vacuum generators?: Answer: Pneumatic vacuum generators offer several benefits including compact design, ease of installation, low maintenance, and energy efficiency. They are particularly suitable for applications with limited space and where electrical power may not be readily available.
Question: How do electric and pneumatic vacuum generators differ?: Answer: Electric vacuum generators use an electric motor to drive a pump that creates vacuum. In contrast, pneumatic vacuum generators use compressed air passing through a venturi to create vacuum. Electric generators are generally more powerful and quieter, but pneumatic types are simpler, more compact, and often more cost-effective.
Question: What are the typical applications of vacuum generators?: Answer: Vacuum generators are widely used in industrial applications such as robotics, pick-and-place systems, material handling, packaging, and automation processes. They are essential in providing the suction needed to manipulate objects.
Question: Can you provide information on the maximum vacuum level a vacuum generator can achieve?: Answer: The maximum vacuum level achievable by a vacuum generator depends on its design and operating conditions, but typically, these devices can create vacuum levels up to 85-90% (or -85 to -90 kPa). For specific product capabilities, refer to the product specifications.
Question: What maintenance is required for vacuum generators?: Answer: Vacuum generators require minimal maintenance. Regular checks for air leaks, blockages, and ensuring clean air supply are generally sufficient to maintain optimal performance.
Question: How does a vacuum generator affect electricity usage in an industrial setting?: Answer: Electric vacuum generators consume electrical power based on their motor size and usage pattern. Pneumatic vacuum generators, while powered by compressed air, can influence overall energy efficiency by the air compressor's electrical usage. It’s important to select the right type based on your facility's power and air supply infrastructure.
Question: What are the differences between a vacuum generator and a vacuum ejector?: Answer: A vacuum generator and a vacuum ejector refer to essentially the same device in different contexts. Both use compressed air to create a vacuum but may vary slightly in design based on their specific application or industry terminology.
Question: How do I choose the right vacuum generator for my application?: Answer: Selecting the right vacuum generator involves considering factors such as the volume and frequency of vacuum needed, the environmental conditions, power availability, and specific application requirements like speed and precision. Consult with a specialist or refer to detailed product specifications to match your needs.
Question: How can I maintain and enhance the performance of my vacuum generator?: Answer: To keep your vacuum generator operating at its best, regular maintenance and the right components are crucial. If you're dealing with a filter that's seen better days or valves that could use an upgrade for more efficient performance, having access to quality replacement parts is key. You'll find everything from durable vacuum pumps that form the core of your system’s functionality, to meticulously designed vacuum fitting parts that ensure everything is perfectly sealed. Don’t overlook our comprehensive range of vacuum-related devices, which are essential for any enhancements or repairs your setup might require. These components are vital for maintaining the high standards of performance and reliability your industrial applications rely on.