Research Category: Bulk Material Handling
Researchers: Canning Conveyor Co Ltd|
Location: Notts, United Kingdom
Non re-greasable labyrinth seal arrangement
Since the introduction of the Canning SuperDriveTM in 2005 the motorised pulley
has proved it self throughout the Waste Industry.
The recycling of general household waste, building waste and refuse incineration
waste provide challenges to seal arrangements of all components utilized within
the conveyors and sorting systems within the industry.
Some of the main culprits of system failure are VHS/cassette tape, glass,
plastic threads and steel or copper wires which can become trapped and wind
themselves around critical areas such as shafts and seals.
On the SuperDrive motorised pulley, Canning recommend the fitment of extra
external non-regreasable steel labyrinth seals at these areas, to provide the
protection required against these particular problems. This will enable the
pulley to operate without constant attention and therefore fulfil its life
Where there is the added problem of extreme aggressive and abrasive dry dust,
or, if it is in a wet form of sludge and, or in a hot environment, we would
recommend that these seals are of our re-greasable type so they can be initially
charged and then continuously purged around the seal area to keep it clear.
The best way of achieving this without constant maintenance is to fit a
proprietary ‘grease-man' system that administers a measured time-lapse grease
release. It is essential that any SuperDriveTM supplied with re-greasable seals
must have automatic greasemen which must be used correctly and replaced strictly
in accordance with the ‘grease-man' manufacturers' instructions to avoid any
Canning Conveyor can also provide SuperDriveTM motorized pulleys with various
options of stainless steel shafts and housings to work in very corrosive areas
These simple and inexpensive measures will considerably extend any SuperDriveTM
motorized pulleys working life within these environments and therefore protect
the investment made in the drive and save possible downtime and lengthy
maintenance tasks in the future.