... ,80T,100T,200T,300T,400T,500T,600T,700T,800T 1.Swivel: 15T,25T,40T,60T,80T,100T,200T,300T,400T,500T ... also available. 2.We use good alloy to manufacture the swivel.3. Bearing: we choose Famous brand Bearing such as SKF ... Timken.4. Good wearing, connviences to demount and maintain. HDD swivel for horizontal directional drilling machine