Compressors feature heavy duty, cast iron construction and include disc valves, a solid ductile iron crankshaft supported at both ends by oversized roller bearings, replaceable needle bearings at the wrist pins and replaceable insert bearings which extend rod life and simplify service. Reciprocating models range from ½ to 30 HP in both splash and pressure lubricated configurations. Filters, dryers and aftercoolers are available to assist in removal of water, oil aerosols and particulate matter from the compressed air. Custom applications can be handled.