RSP MPS Magnetic Preload System Complete (11″, 14″, 16″)


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Runyon Surface Prep is proud to announce the introduction of an innovative tool holding system for power trowels, auto scrubbers and swing machines. The Magnetic Preload System allows for the fast and efficient changing of any 3″ velcro-backed tooling on a standard 11″, 14″, or 16″ pad driver. The system consists of a stainless steel ring that bolts to the pad driver and high density polymer tool holder rings with embedded magnets on one side and six recessed slots for 3″ velcro backed puck style tools on the other.

To change tools, simply pull off the polymer tool holder currently on the driver and slide a new, fully loaded polymer tool holder on. Alignment bosses on the stainless steel ring, with corresponding guide holes on the polymer rings make achieving a secure and proper placement automatic. Each setup comes with one stainless steel ring and two polymer tool holders, so you can always have your next step of tools loaded and ready to go.

Note: for use under an 8′ power trowel, you’ll need 10 of these set-ups – one for each of the 10 trowel arms. This is the COMPLETE unit needed for each trowel arm. This set-up includes the following 3 part numbers:

  • RSP MPS Pork Chop and Bearing (#RUMPSPT11, #RUMPSPT14)
  • Runyon MPS Driver Plate #786714
  • RSP MPS Magnetic Preload System (#RUMPSPT11, #RUMPSPT14, #RUMPSPT16, or #RUMPSPT17)  (note: this includes an extra ring, as pictured)

Our RSP Preload System is patented by the U.S. Patent and Trademark Office.

Additional information

Weight 18 lbs
Dimensions 16 × 16 × 12 in

11", 14", 16", 17"




A, B

Spec Sheets

2021 Power Trowel MPS System Infographic
Power Trowel Polishing Options PDF
2021 Guide to Power Trowel Polishing