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How the GREASOMATIC works
Is a self-ejecting canister of lubricant designed
to screw into a grease nipple socket or other
lubrication point, and discharge its content of
120 ml of lubricant in a controlled continuous
flow, for a preselected period of between one
month and twelve months. It is completely self
contained and needs no pumps, motors, electricity
or compressed air. Once fitted and activated it
will work without attention until its allotted
lifespan is over.
Each GREASOMATIC contains its own unique chemical
expulsion unit. This has no springs or mechanisms
but relies on an unvarying law of nature. Built
into the top of each GREASOMATIC is a flexible
rubber expansion chamber containing a liquid electrolyte
and a galvanic element. The unit is activated
by injecting the galvanic element into the electrolyte.
The resultant electro-chemical reaction generates
a steadily increasing amount of gas, which gradually
expands against a piston, to extrude the lubricant
slowly but surely into the bearing to which the
GREASOMATIC is fitted. The chemicals and gas remain
hermetically sealed within the expansion chamber
so that no contamination of the lubricant can
occur, even after the unit itself is spent. During
the working life of the GREASOMATIC, an indicating
ring on the ejection piston shows through translucent
windows in the body to enable the discharge state
to be monitored.
This is provided to guard against the possibility
of the GREASOMATIC being fitted unwittingly to
a bearing with blocked greaseways. Should the
pressure built up by the GREASOMATIC prove insufficient
to clear the blockage, the valve will open to
allow the lubricant to escape and prevent excessive
pressurisation of the GREASOMATIC. The exudation
of lubricant around the GREASOMATIC will serve
as a warning that the greaseways are blocked and
that no lubrication is taking place.
Discharge
control >>
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An unactivated GREASOMATIC
A working GREASOMATIC
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