Fabrication - The cylinder shock absorber - Back
The PRETAL access door uses oil filled cylinders pressurized
with nitrogen in all types. These cylinders reduce the operational
on the leaf,
allowing an effort not exceding 22 kg (50 lbs)
the operator. Their quantity and pressure loading are
by the size and load capacity of the access door.
The cylinders are fabricated from high quality materials. The
mounting accessories are fabricated from 304 stainless steel
for optimum service.
For the aluminum and galvanized steel hatch, the cylinder's tube
made of heat cured epoxy painted steel, color black, applied
by the cylinder manufacturer.
For the stainless steel hatch, the cylinder is made of stainless
The stability of compressed nitrogen allows
at all temperature extremes.
Modular construction allows quick and easy replacement.