EXAIR offers a variety of mufflers, tubing, check valves, and fittings that make it easy to build a vacuum system best suited to your vacuum application.
When using E-Vac vacuum generators, it is important to use a source of clean, dry compressed air that will keep them operating at their peak performance. Automatic drain filter separators keep the compressed air free of contaminants and moisture; oil removal filters remove oil particulates that are common to many compressed air systems; pressure regulators, shutoff valves, compressed air hose, and solenoid valves (to electrically turn the compressed air on and off).
Vacuum Cups and Accessories
Vacuum Cups
EXAIR vacuum cups are vinyl. They are ideal for general purpose applications and provide excellent resistance to wear. The Durometer rating (used to indicate the flexibility and stiffness of the cup) is A50. Temperature range is 0°C to 52°C (32°F to 125°F).
Choosing a Suitable Vacuum Cup
To select a vacuum cup for your application, you need to know:
- The weight of the item being lifted.
- If the item to be lifted is porous or non-porous.
- The safety factor.
Vacuum Cup Safety Factor
A safety factor of 2 is recommended when the vacuum cup is positioned horizontally.
A safety factor of 4 is recommended when the vacuum cup is positioned vertically.
Some companies or local codes may require a specific safety factor.
How To Use The Tables Below
Determine the weight of the part to be lifted. Multiply it by the safety factor of (2) when the cup will be positioned horizontally, or by (4) when positioned vertically.
Using the tables below, look through the numbers for the weight capacity per vacuum cup. Use enough vacuum cups to distribute the weight evenly for stable lifting and placement. The model number(s) for the vacuum cup(s) that can handle that weight are directly above(at the top of the same column). Details for each vacuum cup can be found in the next section on this page.
To the left of the vacuum cup weight you’ve selected (in that same row) is the vacuum level that is needed. See performance data for the In-Line E-Vacs designed for specific vacuum levels. For loads that vary, Adjustable E-Vacs are the best choice.
| Weight in kilograms that a vacuum cup can hold at a given vacuum | |||||||||||||
| Vacuum Cup Models | 900762 900766 | 900752 900767 | 900763 | 900764 | 900753 900768 | 900754 900769 | 900765 | 900755 900770 | 900756 900757 900758 900771 | 900759 | 900760 | 900761 | |
| Area of cup – cm2 | 3 | 5 | 6 | 10 | 11 | 20 | 28 | 32 | 54 | 92 | 127 | 182 | |
| Vacuum kPa | 17 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 | 1.7 | 2.4 | 2.7 | 4.6 | 7.9 | 10.9 | 15.7 |
| 34 | 0.5 | 0.9 | 1.1 | 1.7 | 2.0 | 3.5 | 4.8 | 5.5 | 9.2 | 15.8 | 21.9 | 31.5 | |
| 51 | 0.7 | 1.3 | 1.7 | 2.5 | 3.0 | 5.2 | 7.3 | 8.2 | 13.9 | 23.7 | 32.8 | 47.2 | |
| 68 | 0.9 | 1.7 | 2.2 | 3.4 | 3.9 | 7.0 | 9.7 | 10.9 | 18.5 | 31.6 | 43.7 | 63.0 | |
| 71 | 1.0 | 1.8 | 2.3 | 3.5 | 4.1 | 7.3 | 10.2 | 11.5 | 19.4 | 33.2 | 45.9 | 66.1 | |
| 91 | 1.3 | 2.4 | 3.0 | 4.5 | 5.3 | 9.4 | 13.1 | 14.8 | 25.0 | 42.7 | 59.1 | 85.0 | |
| Weight in lbs that a vacuum cup can hold at a given vacuum | |||||||||||||
| Vacuum Cup Models | 900762 900766 | 900752 900767 | 900763 | 900764 | 900753 900768 | 900754 900769 | 900765 | 900755 900770 | 900756 900757 900758 900771 | 900759 | 900760 | 900761 | |
| Area of cup – in2 | 0.4 | 0.8 | 1 | 1.5 | 1.8 | 3.1 | 4.4 | 4.9 | 8.3 | 14.2 | 19.6 | 28.3 | |
| Vacuum “Hg | 5 | 0.5 | 1 | 1.2 | 1.8 | 2.2 | 3.9 | 5.3 | 6 | 10.2 | 17.4 | 24.1 | 34.7 |
| 10 | 1 | 1.9 | 2.5 | 3.7 | 4.3 | 7.7 | 10.7 | 12.1 | 20.4 | 34.8 | 48.2 | 69.4 | |
| 15 | 1.5 | 2.9 | 3.7 | 5.5 | 6.5 | 11.6 | 16 | 18.1 | 30.6 | 52.3 | 72.3 | 104.2 | |
| 20 | 2.1 | 3.9 | 4.9 | 7.4 | 8.7 | 15.4 | 21.4 | 24.1 | 40.7 | 69.7 | 96.4 | 138.9 | |
| 21 | 2.2 | 4.1 | 5.2 | 7.8 | 9.1 | 16.2 | 22.4 | 25.3 | 42.8 | 73.2 | 101.3 | 145.8 | |
| 27 | 2.8 | 5.2 | 6.6 | 10 | 11.7 | 20.8 | 28.9 | 32.6 | 55 | 94.1 | 130.2 | 187.5 | |
Vacuum Cup Models and Dimensions
Small Round
Small Round Vacuum Cups are best suited to smooth, flat surfaces. They will grip and release quickly. These cups hold their shape with extended use and grip well to vertical surfaces. Round cups with cleats are better at lifting heavy loads. Cups without cleats can be used for light lifting.
| Vacuum Cups – Small Round | |||||||||
| Model | A | B | C | D | E | F | G | Cleats | |
| 900752 | in | 1.00 | 1.12 | 0.25 | 0.81 | 0.45 | 0.17 | 1/4 FNPT | No |
| mm | 25 | 28 | 6 | 21 | 11 | 4 | |||
| 900753 | in | 1.50 | 0.90 | 0.28 | 1.25 | 1.06 | 0.12 | 1/4 FNPT | Yes |
| mm | 38 | 23 | 7 | 32 | 27 | 3 | |||
| 900754 | in | 2.00 | 1.00 | 0.25 | 1.56 | 1.31 | 0.18 | 1/4 FNPT | Yes |
| mm | 51 | 25 | 6 | 40 | 33 | 5 | |||
| 900755 | in | 2.50 | 1.80 | 0.72 | 1.35 | 0.95 | 0.62 | 1/4 FNPT | Yes |
| mm | 64 | 46 | 18 | 34 | 24 | 16 | |||
| 900756 | in | 3.50 | 1.10 | 0.56 | 0.98 | 0.51 | 0.37 | 1/4 FNPT | No |
| mm | 89 | 28 | 14 | 25 | 13 | 9 | |||
Large Round
Large Round Vacuum Cups are best suited to smooth, flat surfaces. They will grip and release quickly. These cups hold their shape with extended use and grip well to vertical surfaces. Round cups with cleats are better at lifting heavy loads. Cups without cleats can be used for light lifting.
| Vacuum Cups – Large Round | |||||||||
| Model | A | B | C | D | E | F | G | Cleats | |
| 900757 | in | 3.25 | 1.15 | 0.50 | 2.23 | 1.87 | 0.37 | 3/8 FNPT | Yes |
| mm | 83 | 29 | 13 | 57 | 47 | 9 | |||
| 900758 | in | 3.25 | 1.15 | 0.50 | 2.23 | 1.87 | 0.37 | 1/4 FNPT | Yes |
| mm | 83 | 29 | 13 | 57 | 47 | 9 | |||
| 900759 | in | 4.25 | 1.18 | 0.50 | 2.75 | 2.43 | 0.37 | 3/8 FNPT | Yes |
| mm | 108 | 30 | 13 | 70 | 62 | 9 | |||
| 900760 | in | 5.00 | 1.75 | 1.12 | 3.25 | 2.65 | 0.62 | 3/8 FNPT | Yes |
| mm | 127 | 44 | 28 | 83 | 67 | 16 | |||
| 900761 | in | 6.00 | 1.31 | 0.50 | 4.75 | 4.90 | 0.12 | 1/2 FNPT | Yes |
| mm | 152 | 33 | 13 | 121 | 124 | 3 | |||
Oval
Oval Vacuum Cups provide the most vacuum due to the larger surface area. They provide more vacuum power than round cups and are suited to lifting heavy loads. They are designed to handle flat rigid sheet materials like wood, glass, cardboard boxes and composites.
| Vacuum Cups – Oval | ||||||||||
| Model | A | B | C | D | E | F | G | H | Cleats | |
| 900762 | in | 1.00 | 1.06 | 0.12 | 0.81 | 0.76 | 0.09 | 0.50 | 1/8 MNPT | No |
| mm | 25 | 27 | 3 | 21 | 19 | 2 | 13 | |||
| 900763 | in | 2.00 | 1.06 | 0.12 | 1.81 | 1.76 | 0.09 | 0.50 | 1/8 MNPT | No |
| mm | 51 | 27 | 3 | 46 | 45 | 2 | 13 | |||
| 900764 | in | 1.73 | 1.03 | 0.21 | 1.35 | 1.21 | 0.09 | 0.87 | 1/8 MNPT | Yes |
| mm | 44 | 26 | 5 | 34 | 31 | 2 | 22 | |||
| 900765 | in | 2.96 | 0.93 | 0.19 | 0.92 | 2.34 | 0.20 | 1.47 | 1/8 FNPT | No |
| mm | 75 | 24 | 5 | 23 | 59 | 5 | 37 | |||
Bellows
Bellows Vacuum Cups are best suited to textured, uneven surfaces. The folds, called “convolutions”, provide a collapsible area that allows the cup to quickly compress when it touches the flat surface. The attach and release time is greater due to the significant volume of the cup.
| Vacuum Cups – Bellows | ||||||||||
| Model | A | B | C | D | E | F | G | H | Cleats | |
| 900766 | in | 0.73 | 1.43 | 0.75 | 0.67 | 0.45 | 0.79 | 3 | 1/4 FNPT | No |
| mm | 19 | 36 | 19 | 17 | 11 | 20 | ||||
| 900767 | in | 1.00 | 1.48 | 0.85 | 0.56 | 0.44 | 0.85 | 4 | 1/8 FNPT | No |
| mm | 25 | 38 | 22 | 14 | 11 | 22 | ||||
| 900768 | in | 1.50 | 1.12 | 0.71 | 1.06 | 1.00 | 0.31 | 1 | 1/4 FNPT | Yes |
| mm | 38 | 28 | 18 | 27 | 25 | 8 | ||||
| 900769 | in | 2.00 | 1.54 | 0.89 | 1.00 | 1.17 | 0.68 | 1 | 1/4 FNPT | Yes |
| mm | 51 | 39 | 23 | 25 | 30 | 17 | ||||
| 900770 | in | 2.50 | 2.40 | 1.75 | 1.00 | 1.12 | 1.80 | 2 | 1/4 FNPT | No |
| mm | 64 | 61 | 44 | 25 | 28 | 46 | ||||
| 900771 | in | 3.25 | 3.00 | 2.20 | 1.00 | 1.53 | 2.00 | 2 | 3/8 FNPT | No |
| mm | 83 | 76 | 56 | 25 | 39 | 51 | ||||
Accessories Needed To Build Your Vacuum System
Mufflers
Optional silencing mufflers are available that permit maximum exhaust of the E-Vac unit so cycle speed is not reduced. The Standard Muffler (for use with In-Line E-Vacs only) has a closed end and is suitable for applications that are free of dust and debris. The Straight Through Muffler is recommended where particulates are present since it will not accumulate debris that can erode performance. Straight Through Mufflers offer the best sound level reduction (up to 26 dBA).
| Mufflers – Standard | ||
| Model | Description | Thread |
| 900800 | Standard Muffler | 1/4 MNPT |
| 900801 | Standard Muffler | 3/8 MNPT |
| 900802 | Standard Muffler | 1/2 MNPT |
| Mufflers – Straight Through | ||
| Model | Description | Thread |
| 890001 | Straight Through | 1/4 MNPS |
| 890002 | Straight Through | 3/8 MNPS |
| 890003 | Straight Through | 1/2 MNPS |
| 890004 | Straight Through | 3/4 MNPS |
| 890005 | Straight Through | 1 MNPS |
Check Valves
A vacuum check valve is available to hold the vacuum in case of compressed air loss. E-Vac vacuum generators that are used without a check valve will release the load if there is a significant drop in compressed air pressure or the supply of compressed air is lost.
| Check Valves | ||
| Model | Description | Thread |
| 900804 | Check Valve | 1/4 NPTF |
| 900805 | Check Valve | 3/8 NPTF |
| 900806 | Check Valve | 1/2 NPTF |
Fittings and Tubing
The vacuum port of the E-Vac has an NPT thread (a vacuum cup can be threaded directly into it). For vacuum cups that are remotely located, push-in connector fittings (most have global threads for use with NPT and BSP), or hose barb fittings can be installed on the E-Vac and the vacuum cup. Polyurethane vacuum tubing is available (10’, 20’, 30’, 40’ and 50’ lengths) to connect them. For best performance, the length of the tubing should be minimised to achieve the best attach and release times.
| Push-In Connectors | ||
| Model | Description | |
| 900773 | 1/4 Tube X 1/8 FNPT | |
| 900774 | 1/4 Tube x 1/8 Male Global Thread | |
| 900775 | 1/4 Tube x 1/4 Male Global Thread | |
| 900776 | 1/4 Tube x 3/8 Male Global Thread | |
| 900777 | 3/8 Tube x 1/8 Male Global Thread | |
| 900778 | 3/8 Tube x 1/4 Male Global Thread | |
| 900779 | 3/8 Tube x 3/8 Male Global Thread | |
| 900780 | 3/8 Tube x 1/2 Male Global Thread | |
| Push-In Swivel Elbow Connectors | ||
| Model | Description | |
| 900781 | 1/4 Tube x 1/8 Male Global Thread | |
| 900782 | 1/4 Tube x 1/4 Male Global Thread | |
| 900783 | 1/4 Tube x 3/8 Male Global Thread | |
| 900784 | 3/8 Tube x 1/8 Male Global Thread | |
| 900785 | 3/8 Tube x 1/4 Male Global Thread | |
| 900786 | 3/8 Tube x 3/8 Male Global Thread | |
| 900787 | 3/8 Tube x 1/2 Male Global Thread | |
| Push-In Swivel Branch Tee Connector | ||
| Model | Description | |
| 900788 | 1/4 Tube x 1/8 Male Global Thread | |
| 900789 | 1/4 Tube x 1/4 Male Global Thread | |
| 900790 | 3/8 Tube x 1/4 Male Global Thread | |
| 900791 | 3/8 Tube x 3/8 Male Global Thread | |
| Push-In Bulkhead Connector | ||
| Model | Description | |
| 900792 | Female Union – 1/4 Tube x 1/4 Tube | |
| 900793 | Female Union – 3/8 Tube x 3/8 Tube | |
| 900809 | Female Union – 1/4 Tube x 1/4 NPT | |
| 900810 | Female Union – 3/8 Tube x 1/4 NPT | |
| Vacuum Tubing | ||
| Tubing lengths are 10′, 20′, 30′, 40′, and 50′. Select the hose model number (diameter) and indicate the length with a dash. Example: A model 900795-20 is 1/4″ tubing x 20′ (6.1m) long. | ||
| Model | Description | |
| 900795- | 1/4″ OD Polyurethane Tubing | |
| 900796- | 3/8″ OD Polyurethane Tubing | |
| Mounting Clip | ||
| Model | Description | |
| 900798 | Mounting Clip with Strap | |
| Hose Barbs | ||
| Model | Description | |
| 900969 | 1/4 MNPT x 1/4 Hose Barb | |
| 900970 | 1/4 MNPT x 3/8 Hose Barb | |
| 900971 | 1/4 MNPT x 1/2 Hose Barb | |
| 900972 | 1/2 MNPT x 1/4 Hose Barb | |
| 900973 | 1/2 MNPT x 3/8 Hose Barb | |
| 900974 | 1/2 MNPT x 1/2 Hose Barb | |
| 900975 | 1/2 MNPT x 3/4 Hose Barb | |
| 900976 | 3/4 MNPT x 3/8 Hose Barb | |
| 900977 | 3/4 MNPT x 1/2 Hose Barb | |
| 900978 | 3/4 MNPT x 3/4 Hose Barb | |
| 900979 | 3/4 MNPT x 1 Hose Barb | |
| 900980 | 1 MNPT x 3/4 Hose Barb | |
| 900981 | 1 MNPT x 1 Hose Barb | |
| Hose | ||
| Hose lengths are 10′, 20′, 30′, 40′, and 50′. Select the hose model number (diameter) and indicate the length with a dash. Example: A model 901845-20 is 1/4″ hose x 20′ (6.1m) long. | ||
| Model | Description | |
| 901845- | 1/4″ ID Hose | |
| 900689- | 3/8″ ID Hose | |
| 900690- | 1/2″ ID Hose | |
| 900063- | 3/4″ ID Hose | |
| 900064- | 1″ ID Hose | |
| Vacuum Gauge | ||
| Model | Description | Thread |
| 900811 | Vacuum Gauge (-30” Hg/-1 BAR/-100 kPa-0) |
1/8 MNPT |
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