Roadtec’s rolls out new high-production RX 405e and RX 505e milling machines

First published at CONEXPO-CON/AGG - March 13, 2020

Roadtec has widened its milling machine range

Roadtec’s RX 405e and RX 505e milling machines offer higher performance outputs than the models they replace.

The RX 405e weighs in at 20.4tonnes, with power from a 321kW Cummins diesel meeting Tier 4 Final/Stage V emissions requirements. The machine can be used for milling widths from 600-1.5m, using firm’s new variable cutting system (VCS). This feature allows the user to open the side of the cutter drum and change the drum. Kyle Hammon, product manager for mills and stabilisers said: “Changing the drums takes 1-2 hours.”

For safety, a drum drive belt lift system prevents the drum drive from engaging while the machine is in maintenance mode.

The cutter drum is centrally mounted and the machine uses a belt drive instead of the hydrostatic drive used before. According to Hammon, these changes allow the new model to be more production focused now. The new cutter and drum configuration also allow the machine to cut a full 330mm depth, allowing it to mill down to the base layer and ensure that any reflex cracking is properly removed when carrying out road repairs.

The more powerful RX 505e weighs in at 24.9tonnes and shares many of the same features, such as the VCS and drum drive belt lift system. Power for the RX 505e comes from a Cummins QSX15 diesel rated at 466kW, which meets Tier 4 Final/Stage V emissions requirements. Hammon added that the RX 505e competes in the market for a ½ lane milling machine, while it benefits from an output conveyor with a 60° swing.

Both machines benefit from new controls and twin cameras, plus rear object detection technology that will put the drive into neutral should anyone stray into the working area. In addition, both models have full camera systems around the machines that allow a single operators to control the units safely, whether seated or standing.

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