EXAIR offers vinyl vacuum cups in round, oval, and bellows styles. These cups come with various thread sizes, including 1/8 NPT, 1/4 NPT, 3/8 NPT, and 1/2 NPT. They have a Durometer rating of A50, indicating their flexibility and stiffness. The temperature range for these vacuum cups is 32°F to 125°F (0°C to 52°C).
Round 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.
Oval Cups provide the most vacuum due to the larger surface area that contacts the part. 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.
Bellows 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 uneven surface. The attach and release time is greater due to the significant volume of the cup.
Vacuum Cup Selection
To select a vacuum cup for your application, you need to know:
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.
Using 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 table below, look through the numbers highlighted in orange 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 (in that column) and are highlighted in blue. Details for each vacuum cup can be found on Vacuum Cup Dimensions.
To the left of the vacuum cup weight you’ve selected (in that same row) is the vacuum level highlighted in green that is needed. Performance data for the In-Line E-Vacs designed for specific vacuum levels can be found here. For loads that vary, Adjustable E-Vacs are the best choice (performance shown here).
| Weight in lbs that a vacuum cup can hold at a given pressure | |||||||||||||
| 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 | 1.0 | 1.5 | 1.8 | 3.1 | 4.4 | 4.9 | 8.3 | 14.2 | 19.6 | 28.3 | |
| Vacuum "Hg | 5 | 0.5 | 1.0 | 1.2 | 1.8 | 2.2 | 3.9 | 5.3 | 6.0 | 10.2 | 17.4 | 24.1 | 34.7 |
| 10 | 1.0 | 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 | 16.0 | 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 | 10.0 | 11.7 | 20.8 | 28.9 | 32.6 | 55.0 | 94.1 | 130.2 | 187.5 | |
| Weight in kilograms that a vacuum cup can hold at a given pressure | |||||||||||||
| 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 | |
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 32°F to 125°F (0°C to 52°C).
| 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 | |||
| *FNPT = NPT Female | |||||||||
| 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 | |||
| *FNPT = NPT Female | |||||||||
| 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 | |||
| *FNPT = NPT Female MNPT = NPT Male | ||||||||||
| 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 | ||||
| *FNPT = NPT Female MNPT = NPT Male | ||||||||||
#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, Bannerghatta Road, Bangalore, Karnataka,INDIA
#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, Bannerghatta Road, Bangalore, Karnataka,INDIA
