The Air Ram cylinder has been used since 1939 to help clear snow from New England highways. It was developed by snowplow operators who were tired of issues with conventional hydraulic cylinders. The Air Ram uses a truck's existing air brake system to power its steel piston. It can lift snowplows up to 12 feet long and weighing up to 4,000 pounds using 100 psi of air pressure. It is available painted black or primer red.