Adson Compression's Oil-Free Compressors feature low RPM and a robust cast iron design, making them perfect for continuous heavy-duty operation 24/7, year after year. The forged crankshaft and connecting rod, along with precision main and crank pin bearings with force feed lubrication, boast a high load-bearing capacity and rarely require replacements. The two-throw balanced-opposed frame is engineered to minimize unbalanced forces