Air Venturi Vacuum Generator Pump for Workholding, Fixturing & Clamping.
Use the Air Venturi Vacuum Pump for custom hold down fixturing and for Vacuum
Chuck workholding applications. The Air Venturi Vacuum creates a vacuum using compressed air. It's straight through design helps prevent clogging. It can also be used as an AC Vacuum Pump to evacuate air conditioning systems.
The Adjustable Air Venturi Vacuum Pump operates by supplying compressed air to the supply port. When air pressure is applied, the Venturi creates a vacuum at one end. The air is exhausted out the other end.
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Features of the Adjustable Venturi Vacuum:
- Venturi Vacuum creates a vacuum using ordinary compressed air.
- Excellent for work-holding, fixturing, and clamping applications (vacuum chucks, custom hold down fixturing, suction cups, etc.).
- Straight through design helps prevent clogging.
- All anodized aluminum construction allows use in harsh dirty environments or clean rooms.
- Standard NPT connections for easy installation
- Maximum vacuum generated is 22"HG-26"HG (10.8psi-12.8psi).
- Vacuum may be adjusted from 0" HG to the maximum vacuum by loosening the locking nut and turning the exhaust end of the vacuum.
- Only 70-80PSI air pressure is required to obtain the maximum vacuum.
- View Vacuum Calculations and Data.
Air Venturi Vacuum Pumps |
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1/4" NPT Air Venturi Vacuum
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3/8" NPT Air Venturi Vacuum
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View all Vacuum Accessories. |
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A No-Clog Air Exhaust Silencer / Muffler may be used to reduce the noise level of the vacuum.
- Catalog No.: 10033 uses a 1/4” No-Clog Air Silencer (Catalog No.: 10031).
- Catalog No.: 10186 uses a 3/8” No-Clog Air Silencer (Catalog No.: 10032).
- Tubing or hose may also be connected to the outlet port to redirect the exhaust.
No-Clog Air Exhaust Silencers |
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| NPT Male Pipe Thread |
Length | O.D. | I.D. (thru-hole diam., min.) |
Order |
| 1/4" | 1.6" | .75" | 5/16" | |
| 3/8" | 1.6" | .75" | 3/8" | |
| Description | 1/4" NPT Vacuum Cat. 10033 |
3/8" NPT Vacuum Cat. 10186 |
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| Vacuum Flow (SCFM) | 4.5 | 6 |
| Amount of Supply Air Used (SCFM) | 5 | 8 |
| Diameter of straight through vacuum flow path (Bore Diameter) |
0.20"(5mm) | 0.375"(9.5mm) |
Work-holding / Fixturing calculations:
Hold down force is calculated simply by:
Force = (area of part being held in sq. in.) x (vacuum in psi)
For example:
if you are using a 3" round suction cup to hold a part the force applied to the part is
7.069 x 11.8psi = 83lbs of holding force (For reference: 24"HG=11.8psi)
Where 7.069 is the area of the circle (πr2) = 3.14159 x 1.52
Remember to allow for a safety factor.
The typical supply air consumption rates and vacuum flow rates are listed in the tables below.
Maximum Vacuum Air Usage Table
(The maximum vacuum levels are obtained by rotating the back end of the vacuum).
| Supply Air Pressure (psi) |
Maximum Vacuum Created (in. Hg) |
Amount of Supply Air Used (SCFM) | Vacuum Flow (SCFM) | |||
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| 1/4" NPT Vacuum Cat. 10033 | 3/8" NPT Vacuum Cat. 10186 | 1/4" NPT Vacuum Cat. 10033 | 3/8" NPT Vacuum Cat. 10186 | 1/4" NPT Vacuum Cat. 10033 | 3/8" NPT Vacuum Cat. 10186 | |
| 90 | 24 | 24 | 5 | 8 | 4.5 | 6 |
| 80 | 24 | 24 | 5 | 8 | 4.5 | 6 |
| 70 | 24 | 24 | 5 | 8 | 4.5 | 6 |
| 60 | 24 | 22 | 5 | 7 | 4.5 | 6 |
| 50 | 21 | 18 | 5 | 6 | 4.5 | 6 |
| 40 | 15 | 15 | 5 | 5 | 3.5 | 5 |
Air Usage Table at 80 psi for reduced vacuum levels.
(The reduced vacuum levels are obtained by rotating the back end of the vacuum).
| Vacuum Created (in. Hg.) | Amount of Supply Air Used (SCFM) | Vacuum Flow (SCFM) | ||
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| 1/4" NPT Vacuum Cat. 10033 | 3/8" NPT Vacuum Cat. 10186 | 1/4" NPT Vacuum Cat. 10033 | 3/8" NPT Vacuum Cat. 10186 | |
| 24 | 5 | 8 | 4.5 | 6 |
| 20 | 3.5 | 5 | 4.5 | 6 |
| 15 | 2.5 | 3 | 4.5 | 6 |
| 10 | 2 | 1 | 4 | 5 |
Popular Vacuum Workholding Accessories |
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Vacuum ManifoldUse to connect to the Venturi Vacuum, 2L Vacuum Chucks, and many other vacuum applications. Has 1/4" NPT threads. Manifold includes: Vacuum Gauge, Brass Tee Fitting, 2 - 1/4" M NPT Fittings, 2 shut-off valves. |
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Vacuum Hose KitHose allows the Venturi Vacuum Pump to be located away from your machine. Has 1/4" NPT and 3/8" NPT connectors. Kit includes: Hose - 10 feet length, 2 - 5/8" hose barbs, 2 - 3/8" F NPT - 1/4" M NPT Hex Adaptors, Hose Clamp. |
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