Automatic Screw Cappers
Automatic screw cappers
come in two basic types: chuck cappers and inline cappers, each with
its own advantages and disadvantages.
Chuck
Cappers
Chuck cappers are by far
the most reliable and accurate type of automatic capping machine
because each cap is held securely in the chuck while a precision
clutch adjustment ensures repetitive torque application of the cap.
The big disadvantage of chuck capping machines is that separate change
parts are required for each bottle and cap size and the cost of the
machines is much higher than inline cappers. Most chuck cappers are
found on high speed rotary capping machines where line speeds exceed
120 bottles per minute or for difficult products like pump sprayers.
Single head chuck cappers are also available and can often be used
alone or on monoblock systems at speed up to around 60 bottles per
minute. (See Chuck Cappers Below).
Inline
Cappers
Inline capping machines
are much simpler machines with relatively few change parts required
(usually in the cap sorting system). For most applications that use
standard flat caps inline cappers are a breeze to change over. The big
disadvantage of an inline capping machine is its speed limitation
(generally not much over 120 bottles per minute), inability to run
more difficult caps, and less consistency of torque application
(although recent technological improvements have lessened that gap).
One thing that you should consider when shopping for an inline capper
is to watch out for the type of feed system the machine uses because
the money you save may not really be worth it. For instance note the
SK-6000-SP and SK-6000-18 to the right. Both utilize vibratory feed
bowls and bulk supply hoppers. For one, vibratory feeders are very
noisy, but also notice how high the bulk feeders are situated. Someone
will need to climb a ladder to load the bulk feeder. Yes the option
exists to replace that hopper with a low level bulk feeder such as the
SK-0406 but the cost of the machine can now be higher than the other
units that utilize different feed systems, are quieter, and include
floor level hoppers. However, also consider that if you have a
difficult cap, the inline capper may require a vibratory feeder.
Call: 800-840-9573
or
for more information
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Automatic Inline Capper
Automatic Chuck Cappers
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