lebus grooved sleeve used more and more popular now .as it can save the time and cost to replace the whole winch drum . as the constantly technical and research development ,our company now strongly produce the lebus series. that widely used in winch ,offshore platform ,drilling rig and other hosit ,lifting conditions . it can be design by us or by customer .we now specialized the kinds of winch .especially the lebus grooved drum winch ,which can even the load ,improve the working condition in heave and small space condition .the power can be electric or hydraulic .it can be designed by us factory or by customized drawing