These scraper rings are made of copper based alloys.
These scraper rings are required to fit a ground piston
rod 95% light tight at all times. Extensive tests prove M2
styles exceed this requirement and that less than 1/2 to
1% of the circumference of the piston rod is exposed to
dirt, grit, or ice. Due to the rotary action of the scraper
ring, the exposed area is never in the same place.
Because of their design and closely controlled dimensions
these rings will completely remove all types of
frozen accumulations whether it be oil, frost, mud or ice
from the piston rod.
Controlled break out friction of these scraper rings is
possible due to the pre-stressed design. The design
applies tension equally about the circumference of the
ring, and prevents excessive pressure tending to load the
piston rod causing accelerated wear, friction and heat.
These scraper rings can be used over a varied range of
temperatures from -65°F to +500°F(-54°C to +260°C).
Due to the pre-stressed tensioners, the scraper rings
will compensate for expansion and contraction due to
temperature. Also, for any wear that may result both in
the scraper ring and /or on the piston rod.
To simplify installation, the above adapter was developed
for easy adaption of the scraper rings to your product. In
most cases,it is merely necessary to drill mounting holes
through the adapter ring into the face of the cylinder end
cap, bushing or flange plate, using 3 or 4 self tapping
screws, machine screws or bolts to hold in place. The
correct clearances have been provided in the adapter to
allow the scraper ring to float both radially and axially,
compensating for any misalignment in the shaft.