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ROADTEC™S NEW RT-500 COLD RECYCLER
May 5th, 2009
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Company: Roadtec Inc.
Roadtec will be offering a new cold recycler for use in cold-in-place recycling projects that use the recycling train concept. A recycling train consists of tanker trucks, cold planers, crushing and screening untis, mixers, pavers and rollers. The new RT-500 can handle up to 600 tph (tons per hour) of material. The RT-500 cold recycler is designed to crush and screen the RAP producd by the RX-900 cold planer, and the on-board pugmill mixes emulsion into the recycled material.
The RT-500™s JCI brand double deck screen receives the milled up material from the RX-900 conveyor. Any oversized material goes through the RT-500™s Telsmith 3048 impact crusher and back to the screen via a two-conveyor return circuit. The conveyors are outfitted with cleated belts for maximum production. A water spray system prevents dust build up on rollers and the conveyors are covered for safety and to prevent roll-off.
Material that passes the screen drops onto a 48 weigh belt. The belt™s electronic scale, accurate to +/- 1%, communicates with the blending computer, which in turn adjusts the flow of additives that go into the RT-500™s JCI/KPI Model 52 pugmill mixer. This twin shaft mixer has a capacity of 600 tons per hours. After a thorough mixing in the pugmill the material is discharged in a windrow onto the roadway. The whole RT-500 system is run by electric motors powered by a Caterpillar C-9 generator set.
The Roadtec 950 horsepower RX-900 cold planer is the recycling train™s sole source of propulsion. It tows the RT-500 cold recycler and a nurse tank for the emulsions. It also pushes a water truck and a slurry tanker that are always with the train. The RX-900 also pushes another emulsion tanker and slurry tank when they are present to replenish the tankers hooked to the train. Those two replenishing tankers are attached to the train just long enough to pump off their products and then go to a staging area where they are refilled to return to the train. A windrow loader followes the train to pick up the material and feed it to a conventional paver to be spread on the roadway.