The vibco VS-190HS high speed silent Pneumatic turbine Vibrator features 160 lbs. Of Vibratory force, 7, 200 vibrations per minute (VPM), and employs vibco's patented silent turbine Vibrator design. The HS version is designed to be quick starting. It has a built in exhaust Muffler and has a 2-bolt foot mount with 4” center-to-center mounting holes. The cast-iron housing is durable for harsh environments. Use this product to replace loud ball and piston-style vibrators that require lubricated air. Rated for continuous duty up to 60 psi max, the vibco VS-190HS is pre-lubricated for life, requires 60-80 psi of clean, dry air and consumes just 9 cfm, operating at just 70 db on a-scale at 1 meter. ; &use a filter regulator for optimum life and performance (sold separately). ; .