LDSF Large Diameter Split Frame Clamshell Pipe Cutters/Bevelers E. H. Wachs LDSF Large Diameter Split Frame with hydraulic drive is designed for cold cutting, beveling, facing and counterboring on large diameter pipes, vessels and flanges. It’s been engineered to incorporate multiple advancements designed to make it stronger and faster to set up and operate. Picking up where our MDSF split frames leave off, four standard LDSF Large Diameter Split Frame sizes will cover a range from 60in-120in O.D. (DN1500-DN3000). Each machine covers a 15in (381mm) diameter range and will simultaneously cut and bevel most wall thicknesses and materials. The internal, full bearing construction contributes to the LDSF Large Diameter Split Frame's smooth operation and long service life. Spring loaded O.D. (outside diameter) tracking slides for irregularly shaped or out-of-round pipe and vessels are standard, and allow the tooling to maintain continuous contact, producing precision weld preps with consistent lands. A new new CRBM Counterboring and Reverse Bevel module counterbores in vertical orientation, and reverse bevels in angled orientation. The LDSF Large Diameter Split Frame takes corrosion protection to a new level with virtually every surface treated. Its attractive red powder coated finish proudly reflects E.H. Wachs corporate colors.