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Equipment › ANVER vacuum cups › 2.5 Bellows Suction Cups

ANVER · Made in USA

ANVER Universal 2.5 Bellows Style Vacuum Suction Cups

ANVER 2.5 bellows vacuum suction cups attach gently on concave, convex and slanted surfaces and often eliminate spring suspensions. This page lists every part number with dimensions, capacity, fittings and suspensions.

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Universal 2.5 bellows style vacuum suction cups with interchangeable fittings

Manufacturer PDF

Bellows suction cups are excellent for concave and convex surfaces and eliminate the need for spring suspensions in many cases
2.5 Bellows Vacuum Suction Cups attach gently and easily with minimum pressure. They are excellent for concave and convex shapes as well as on slanted surfaces. Their design can replace mechanical springs, ball swivels and height compensators, allowing for less complicated and more economical installations. Keeping vacuum levels a bit lower extends the life of the suction cups.

Note:The name of these vacuum cups and their labeling does not necessarily reflect the diameter that makes contact with the load. To find the exact diameter, open the page of the desired vacuum cup below and verify its “Flared Overall Dia.” specifications.

Vacuum cup materials

The standard materials are Nitrile (NBR) and Silicone (SIT).
For more information on the materials, see vacuum cup materials.

B2.5-5 through B2.5-25

B2.5-32 through B2.5-88

Specifications for 2.5 bellows vacuum suction cups

		Product Photo	Vacuum Cup Part Number and Material	D Overall Dia. in. (mm)	d Fitting Dia. in. (mm)	H Static Height in. (mm)	A Compressed Height in. (mm)	Volume in³ (cm³)	Horizontal Load Capacity* lb. (kg) 2 to 1	Item Weight oz. (grams)	Fitting Group	Level Compensator Suspensions
		PBA4-ESD (Electro-Static Dissipative NOMASTAT®)	0.16 (4.0)	0.16 (4.0)	0.59 (15.0)	–	–	48 grams	–
		PBA4-SIT (Translucent Silicone)	0.16 (4.0)	0.16 (4.0)	0.59 (15.0)	–	–	48 grams	–
		PBA4-SI (Red Silicone)	0.16 (4.0)	0.16 (4.0)	0.59 (15.0)	–	–	48 grams	–
		PBA4-NM (NOMATHANE®)	0.16 (4.0)	0.16 (4.0)	0.59 (15.0)	–	–	48 grams	–
			B2.5-5-NBR (Nitrile) 3256	0.22 (5.7)	0.16 (4.0)	0.53 (13.5)	0.41 (10.5)	0.002 (0.04)	65 grams	0.01 (0.35)

–	Product Photo	Part Number	Overall Dia.	Fitting Dia.	Overall Height	Attached Height	Volume	Capacity	Weight	Fitting	Suspension
			B2.5-5-SIT (Translucent Silicone) 3257	0.22 (5.7)	0.16 (4.0)	0.53 (13.5)	0.41 (10.5)	0.002 (0.04)	65 grams	0.01 (0.35)

			B2.5-7-NBR (Nitrile) 3259	0.28 (7.0)	0.16 (4.0)	0.54 (13.6)	0.39 (10.0)	0.003 (0.05)	105 grams	0.02 (0.59)

			B2.5-7-SIT (Translucent Silicone) 3260	0.28 (7.0)	0.16 (4.0)	0.54 (13.6)	0.39 (10.0)	0.003 (0.05)	105 grams	0.02 (0.59)

			B2.5-7-NM (NOMATHANE®)	0.28 (7.0)	0.16 (4.0)	0.54 (13.6)	0.39 (10.0)	0.003 (0.05)	105 grams	0.02 (0.59)

–	Product Photo	Part Number	Overall Dia.	Fitting Dia.	Overall Height	Attached Height	Volume	Capacity	Weight	Fitting	Suspension
		PBL8-SI (Red Silicone)	0.31 (8.0)	0.31 (8.0)	0.83 (21.0)	–	–	155 grams	–
			B2.5-9-NBR (Nitrile) 3262	0.35 (9.0)	0.16 (4.0)	0.59 (15)	0.47 (12.0)	0.009 (0.15)	174 grams	0.03 (0.77)

			B2.5-9-SIT (Translucent Silicone) 3263	0.35 (9.0)	0.16 (4.0)	0.59 (15)	0.47 (12.0)	0.009 (0.15)	174 grams	0.03 (0.77)

			B2.5-9-NM (NOMATHANE®)	0.35 (9.0)	0.16 (4.0)	0.59 (15)	0.47 (12.0)	0.009 (0.15)	174 grams	0.03 (0.77)

			B2.5-9-ESD (NOMATHANE®)	0.35 (9.0)	0.16 (4.0)	0.59 (15)	0.47 (12.0)	0.009 (0.15)	174 grams	0.03 (0.77)

–	Product Photo	Part Number	Overall Dia.	Fitting Dia.	Overall Height	Attached Height	Volume	Capacity	Weight	Fitting	Suspension
		PBL10-SI (Red Silicone)	0.39 (10.0)	0.31 (8.0)	0.85 (21.5)	–	–	225 grams	–
		PBL10-BSI (Black Silicone)	0.39 (10.0)	0.31 (8.0)	0.85 (21.5)	–	–	225 grams	0.05 (1.4)
		PBL10-ESD (Electro-Static Dissipative NOMASTAT®)	0.39 (10.0)	0.31 (8.0)	0.85 (21.5)	–	–	225 grams	–
			B2.5-14-NBR (Nitrile) 3265	0.59 (15.0)	0.16 (4.0)	0.92 (23.3)	0.51 (13.0)	0.059 (0.98)	1.0 (0.45)	0.06 (1.59)

			B2.5-14-SIT (Translucent Silicone) 3266	0.59 (15.0)	0.16 (4.0)	0.92 (23.3)	0.51 (13.0)	0.059 (0.98)	1.0 (0.45)	0.06 (1.59)

			B2.5-14-NM (NOMATHANE®)	0.59 (15.0)	0.16 (4.0)	0.92 (23.3)	0.51 (13.0)	0.059 (0.98)	1.0 (0.45)	0.06 (1.59)

–	Product Photo	Part Number	Overall Dia.	Fitting Dia.	Overall Height	Attached Height	Volume	Capacity	Weight	Fitting	Suspension
		PBL16-SI (Red Silicone)	0.63 (16)	0.31 (8.0)	0.83 (21)	–	–	1.1 (0.5)	–
			B2.5-18-NBR (Nitrile) 3268	0.72 (18.3)	0.16 (4.0)	0.90 (22.8)	0.51 (13.0)	0.082 (1.35)	1.5 (0.68)	0.07 (1.93)

			B2.5-18-SIT (Translucent Silicone) 3269	0.72 (18.3)	0.16 (4.0)	0.90 (22.8)	0.51 (13.0)	0.082 (1.35)	1.5 (0.68)	0.07 (1.93)

			B2.5-18-NM (NOMATHANE®)	0.72 (18.3)	0.16 (4.0)	0.90 (22.8)	0.51 (13.0)	0.082 (1.35)	1.5 (0.68)	0.07 (1.93)

–	Product Photo	Part Number	Overall Dia.	Fitting Dia.	Overall Height	Attached Height	Volume	Capacity	Weight	Fitting	Suspension
			B2.5-20-NBR (Nitrile) 3271	0.79 (20.0)	0.16 (4.0)	0.88 (22.4)	0.51 (13.0)	0.122 (2.00)	1.9 (0.86)	0.08 (2.39)

			B2.5-20-SIT (Translucent Silicone) 3272	0.79 (20.0)	0.16 (4.0)	0.88 (22.4)	0.51 (13.0)	0.122 (2.00)	1.9 (0.86)	0.08 (2.39)

			B2.5-20-NM (NOMATHANE®)	0.79 (20.0)	0.16 (4.0)	0.88 (22.4)	0.51 (13.0)	0.122 (2.00)	1.9 (0.86)	0.08 (2.39)

		PBL22-SI (Red Silicone)	0.87 (22)	0.31 (8.0)	0.85 (21.5)	–	–	2.24 (1.01)	–
–	Product Photo	Part Number	Overall Dia.	Fitting Dia.	Overall Height	Attached Height	Volume	Capacity	Weight	Fitting	Suspension
			B2.5-25-NBR (Nitrile)	0.98 (25.0)	0.16 (4.0)	1.32 (33.4)	0.63 (16.0)	0.330 (5.40)	2.00 (0.90)	0.14 (4.1)

			B2.5-25-SIT (Translucent Silicone)	0.98 (25.0)	0.16 (4.0)	1.32 (33.4)	0.63 (16.0)	0.330 (5.40)	2.00 (0.90)	0.14 (4.1)

			B2.5-25-NM (NOMATHANE®)	0.98 (25.0)	0.16 (4.0)	1.32 (33.4)	0.63 (16.0)	0.330 (5.40)	2.00 (0.90)	0.14 (4.1)

			B2.5-32-NBR (Nitrile) 3274	1.26 (32.0)	0.31 (8.0)	1.48 (37.5)	0.91 (23.0)	0.610 (10.00)	3.80 (1.70)	0.4 (11.4)

–	Product Photo	Part Number	Overall Dia.	Fitting Dia.	Overall Height	Attached Height	Volume	Capacity	Weight	Fitting	Suspension
			B2.5-32-SIT (Translucent Silicone) 3275	1.26 (32.0)	0.31 (8.0)	1.48 (37.5)	0.91 (23.0)	0.610 (10.00)	3.80 (1.70)	0.4 (11.4)

			B2.5-32-NM (NOMATHANE®)	1.26 (32.0)	0.31 (8.0)	1.48 (37.5)	0.91 (23.0)	0.610 (10.00)	3.80 (1.70)	0.4 (11.4)

			B2.5-42-NBR (Nitrile) 3277	1.69 (43.0)	0.31 (8.0)	1.81 (46.0)	0.94 (24.0)	1.190 (19.50)	6.7 (3.0)	0.74 (21)

			B2.5-42-SIT (Translucent Silicone) 3278	1.69 (43.0)	0.31 (8.0)	1.81 (46.0)	0.94 (24.0)	1.190 (19.50)	6.7 (3.0)	0.74 (21)

			B2.5-62-NBR (Nitrile) 3280	2.36 (60.0)	0.31 (8.0)	2.13 (54.0)	0.94 (24.0)	4.420 (72.50)	13.00 (6.10)	1.65 (47)

–	Product Photo	Part Number	Overall Dia.	Fitting Dia.	Overall Height	Attached Height	Volume	Capacity	Weight	Fitting	Suspension
			B2.5-62-SIT (Translucent Silicone) 3281	2.36 (60.0)	0.31 (8.0)	2.13 (54.0)	0.94 (24.0)	4.420 (72.50)	13.00 (6.10)	1.65 (47)

		B2.5-88-NBR (Nitrile) 3283	3.46 (88.0)	0.47 (12.0)	3.35 (85.0)	1.54 (39.0)	10.100 (165.00)	36.00 (16.80)	6.72 (190)
		B2.5-88-SIT (Translucent Silicone) 3284	3.46 (88.0)	0.47 (12.0)	3.35 (85.0)	1.54 (39.0)	10.100 (165.00)	36.00 (16.80)	6.72 (190)

Group 1 Fittings

Group 2 Fittings

Group 3 Fittings

Other Fitting

Notes

The cup capacities shown above ( * ) are theoretical capacities based on 24″Hg at sea level with a safety factor of two (2) and a ± 5% margin of error. This is the ASME B30.20, Below-the-Hook Lifting Devices specifications and is commonly used in North America as a design capacity for vacuum components. When used in vertical applications, take these values and divide again by 2 to obtain a 4 to 1 safety factor per the ANSI specifications. These are realistic working capacities when designing equipment.
Other manufacturers use a pull-off figure at 27″Hg to show a high capacity value for their cups. This is accurate, but requires users to do all the math themselves to build in safety factors. The values are basically the same, but it is necessary to calculate the working capacities with a safety factor via the following formula at sea level:

Pull-off value (at 27″Hg) = ANVER’s Listed Capacity x 2 x 1.125 (at 24″Hg)

For example: ANVER vacuum cup number F52 has a rated capacity of 15.10 lb at 24″Hg. The pull-off capacity at 27″Hg for this cup would be 15.10 x 2 x 1.125 = 33.98 lbs. From this point, it is necessary to calculate the safety factor based on the vacuum level being used, and the altitude.
To ensure safety, 80% of actual overall diameter is used when determining Load Capacity.

Load capacity based on 80% of cup diameter

More information

Vacuum lifting attachment with bellows cups

These cups can be used
to build special attachments

Bellows cups
in action

13600240A

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ANVER Universal 2.5 Bellows Style Vacuum Suction Cups

Universal 2.5 bellows style vacuum suction cups with interchangeable fittings

Specifications for 2.5 bellows vacuum suction cups

Related pages

Need an ANVER system for your load?