·Railroad undercutters are just one more arsenal in maintaining the track structure the other notable machines being the massive ditch digging equipment and ballast cleaners previously mentioned For more reading about undercutters you may want to consider the book Railway Maintenance Equipment The Men and Machines That Keep the Railroads
·Choosing Switch Machines from lots of different types of electrical switches can be used in wiring your model railroad Lots of different types of electrical switches can be used in wiring your model railroad It can often be quite confusing trying to decide what kind of switch to use when For example what is the…
Mobile rail rectification The RM802 is a High Production Ballast Undercutting/Cleaning Machine especially designed to work on track with pre dumped ballast The powerful cutting chain and high capacity dual unit screening system ensures high working speeds even in heavily fouled encrusted ballast
·Ballast is the layer of crushed rock or gravel packed around and underneath the sleepers for drainage and weight bearing Ballast machines are used to distribute and compact the ballast for maximum stability The final steps are aligning the track laterally and vertically and performing a thorough tamping to stabilize the newly laid track further
·ballast cleaning was carried out manually but soon this arduous manual task was mechanised the first machines built for this purpose appeared about one hundred years ago Part 1 of this two part article looks at ballast bed behaviour and the importance of ballast bed cleaning as well as the introduction of the first ballast machines
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