Stokes Powder Compacting Tablet Press- Model 526-1 (R4). This machine features 20 ton pressing force, dual motion, 3 INCH maximum diameter of compact, 2 5/8 INCH maximum depth of fill, 15 to 45 strokes per minute, 5 hp variable speed motor with vari-drive, air clutch with simple valve lever actuation, brass feed shoe, stainless steel powder hopper, operating manual