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Caterpillar RM500B Rotary Mixer

The RM500B Rotary Mixer, which replaces the RM500, combines ease of use, performance and reliability to achieve the most demanding job specifications in both full-depth reclamation and soil stabilization applications.

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The all-wheel-drive RM500B, which replaces the current RM500 Rotary Mixer, is available with a choice of universal, soil or combination rotors that provide cutting widths of 96 in. and maximum cutting and mixing depths of 16, 18 and 20 in.

  • 546-hp C15 ACERT turbocharged, six-cylinder, Tier 4 Final diesel engine 
  • Rotor drive system operates directly through a powershift transmission and drive axle
  • Automatic rotor load control enhances machine productivity
  • Travel, manual and automatic modes for rotor depth control
  • Large, variable-volume mixing chamber mounted mid-point between the front and rear tires
  • Works in both forward and reverse due to adjustable front and rear doors on the mixing chamber
  • On-board microprocessor constantly evaluates engine RPM and propel speed to maintain peak performance
  • Hydraulic sliding, fully pressurized cab repositions from side-to-side and can be positioned at any point in between
  • Enhanced operator’s environment
  • Four mode steering
  • Operating weight of approximately 62,611 lbs when equipped with a ROPS, a cab and a universal rotor
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