Products
Vacuum Cup Materials Information and Product
Specifications
VACUUM CUP
MATERIAL:
|
Chloroprene
(C): |
Good wear
resistance properties, 0-zone, -40º to 230ºF
(-40º to 110ºC) |
|
Polyurethane
(P): |
Best wear
resistance, super long life, oil resistant,
-58º to 248ºF (-50º to 120ºC) |
|
Nitril Ruber
(N): |
Good wear
resistance properties, oil resistant, -20º
to 225ºF (-50º to 120ºC) |
|
Silicon (S):
|
Soft Material,
especially good for rough/textured surfaces,
-86º to 392ºF (-65º to 200ºC) |
|
Viton (V):
|
High resistance
against compression and tension, -23º to
446ºF (-30º to 230ºC) |
|
Polyurethane
(Pu): |
Soft
polyurethane, best on textured surfaces,
good wear resistance, oil resistant, -68º to
167ºF (-55º to 75ºC) |
|
Duel
Durometer Polyurethane (DDP): |
Soft seal with
stiffer base, best on textured surfaces with
high vacuum levels, good wear and oil
resistance, -50º to 122ºF (10º to 50ºC) |
Lifting
Capacity
The lifting capacity of a vacuum cup can be
theoretically determined at sea level by
using the following formula:
C=.393xD2xV
N
C= Lifting Capacity (lbs.)
D=Cup Diameter (in.)
V=Vacuum Level (in Hg)
N=Desired Safety Factor |
Safety
factor for horizontal lifting
applications should be at least (2).
Vertical lifting applications should
have a safety factor of at least (4).
NOTE:
This formula will give theoretical
lifting capacity only. Actual lifting
capacity should always be verified by
user. |
|
Sizing Vacuum
Cups
When sizing cups there are three crucial
factors to consider. These are vacuum level,
number of cups, and the desired safety
factor. Cup diameter can be determined by
using the following formula:
 |
D=Diameter
of vacuum cup (in.)
M=Mass of lifting product (lbs.)
V=Vacuum Level (in Hg)
N=Safety Factor
U=Number of Cups |
|
To learn more
about vacuum cup selection, read "Vacuum
System Overview - Vacuum Cups" by John
Westbeld, Design Manager, >SAS< Autonmation, LLC
|
