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Portable milling machine: design process overview




Over the years, the Mirage team has designed and manufactured many successful milling machines for a wide range of on-site machining applications. One recent project was a perfect fit for the Derby based UK design team. Here’s an overview of the development process.

Our customer, an offshore engineering operator approached Mirage to design and produce a portable milling machine capable of removing weld seams from plates welded onto offshore platforms. The machine needed to work within a compact working envelope and be easily located around the work piece.

Meeting the brief

For engineering service companies and their customers, ‘time is money,’ so developing a design which can be set up quickly and is easy to use would benefit to everyone. 


Watch the YouTube video to see the DPMRY400 in action


Summary of the product development process

  • Confirmation of the customer needs.
  • Spreadsheet created for calculations of feeds, ratios, speeds, power and distances. Time taken: approx. 1 day. (Document referred to and amended as the design progressed).
  • Initial assembly CAD model created using ‘Solidworks’
  • Design review with customer
  • Amendments to CAD model made including further design reviews with customer
  • Procurement of all machine components (normally within 4 weeks)
  • Machine build (5 days)
  • Workshop trials carried out with customer
  • Sign off by customer
  • Product manual and technical file created
  • Machine despatch to customer


Essentials of the DPMRY portable 3 axis milling machine

  • X axis maximum stroke: 3” (515mm)
  • Y axis max stroke: 15.7” (400mm)
  • Maximum cutter diameter: 1” (25mm)
  • Spindle R.P.M: Min 29   Max 395
  • Machine weight: 690 lbs (313 kg)
  • Control box included.
  • Although designed primarily for removing weld seams, the machine can also be used for many other applications such drilling and machining keyways.

To discuss a potential project using this product please click here to get in touch.

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