API 8C/8A SL225 Water Swivel for Oilfield 1.XSL-Swivel with spinner is a combination of swivel and Kelly spinner, driven by air motor or hydraulic motor, with keyless connection adopted between spinner and central pipe of swivel . 2.It is designed and manufactured according to API spec8 A"Specification for drilling and production hoisting equipment" Model XSL135 XSL170 XSL225 XSL315 XSL450 Max static load KN 1350 1700 2250 3150 4500 US ton 150 180 250 350 500 Rated work load