AVENTICS pneumatic railcar cylinders have been the industry leader since the 1960’s. The heavy-duty, long lasting designs are perfect for the industry and keeps customers coming back. The cylinders operate hopper gates for automatic bottom dumping. Generally these are used on hopper cars hauling coal, aggregate, sand, gravel, ore or other commodities. Customers can choose between steel tubing with chrome plated I.D. or lightweight and corrosion resistant fiberglass. Heads and caps are made cast ductile iron. AVENTICS cylinders have many standard bore sizes and stroke lengths, and custom cylinders are also manufactured.