DynaPrep MDSF 2228 Split Frame Clamshell Pipe Cutter/Beveler Base Kit

DynaPrep 24in MDSF 2.5 Stroke Slides

DynaPrep MDSF Split Frame 2228 22in-28in OD (DN550 - 700) Base Kit, rotating split ring style OD mounted machine tool, is designed to perform

  • as an inline Pipe cutter - (parting), double parting (utilizing two cutting blades) or simultaneous cold cutting and beveling of inline pipe and elbows
  • as an inline Pipe beveler, beveling, compound beveling, and creating J-Preps with specific radius and precise lands, ideal for weld preparation
  • Pipe End Prep Counterboring of inside mating surfaces prior to welding
  • as a Flange Facer to face smooth flange surfaces, record groove flanges, and plunge cut RTJ ring grooves
  • Heavy Wall pipe machining up to a 2.5in (63mm) wall thickness

The DynaPrep MDSF Base kit includes most commonly specified components, just add a drive motor and tooling. Less expensive and easier than ordering components ala carte, these base model MDSF Kits are ideal where multiple ring sizes for varying pipe diameters are required onsite.

Kit is complete with

  • DynaPrep Model 2228 Rotating Ring Set
  • 6B Spline Drive Pinion Housing
  • (2) Rapid Adjust 2.5in Stroke Tool Slides with no-time starwheel feed
  • Indexed Trip Assembly
  • Spare Fastener Kit
  • Operating hand tools
  • Manual
  • Storage Case

Wachs DynaPrep MDSF Medium Diameter split frames, often referred to as clamshells, are named for their ability to split in half for mounting to the outside of inline pipe. Each Wachs Split Frame uses a proven cold cutting machining process to cut and bevel pipe. It maintains the low clearance design of our previous LCSF series, but builds on that legacy with dozens of innovations and features to make it more powerful, more versatile and faster to setup and operate. It redefines the standard in portable, cold cutting machine tools.


In regard to cutting applications, all DynaPrep pipe weld prep machine tools perform inline pipe cutting, can cut off pipe ends, and sever corroded and damaged pipe. A pipe cutter by nature, these pipe cutting machines can also simultaneously cut and bevel inline pipe and perform work in pipeline applications with normal and heavy wall pipe. For heavy wall pipe additional modules are available. Additionally, each machine acts as a pipe beveler, beveling inline pipe, can bevel pipe ends and act as a pipe end prep beveling machine tool, can chamfer inline pipe and bevel pipelines. In certain applications where a compound bevel is needed, the DynaPrep can act as a compound beveler, beveling with form tools or single point machining complex preps such as j-prep bevels.

Moving beyond cut and bevel capability, each DynaPrep MDSF can be equipped with modules for flange facing which will convert the DynaPrep from a pipe cutter into a flange facer that can face and resurface flanges. As a flange resurfacing machine, the DynaPrep MDSF can perform smooth resurfacing, raised face resurfacing, record grooving, and RTJ ring groove creation and resurfacing.

When the need arises to counterbore pipe, the DynaPrep series of rotating lathe machine tools can be outfitted with counterbore modules, enabling counterboring and deep counterbore machining of pipe ends creating desired lands for welding.


Manual Tooling Sheet Product Line Maintenance Manual