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The Steven M. Hain Company offers Big-Hole Rotary Swivels in capacities ranging from 150-ton up to 650-ton. The swivels feature hard-faced washpipes, which are ground for maximum resistance to wear, and the washpipes are designed to provide a long, dependable service life. The washpipes may be removed without removing the swivels’ gooseneck. The Big-Hole Rotary Swivels are engineered so that they can be equipped with reverse air-lift circulation connections.

Standard Big-Hole Rotary Swivel Specifications
Working Load Maximum I.D. Weight
150 tons 8 inches 3,600 lbs
250 tons 8 inches 4,700 lbs.
650 ton 12 inches 11,500 lbs.