Caterpillar Performance Handbook, January 2017, SEBD0351-47

Equipment Selection

Waste Handling MRF’s, Sorting and Transfer Stations

Track Loaders Waste Handling Track Loaders are designed, guarded, and built in factory so that they can accommodate all waste applications. Transfer stations are a strength for this machine due to its versatility in this application. Sorting, pushing, layering, and compaction are all part of typical operations within the transfer station applica- tion. Just like the track-type tractor, the track loader is used in higher tonnage transfer stations, C&D transfer stations, and when waste needs volume reduction. Equipped with a multi-purpose bucket, the track loader can sort, push, layer, compress and shred, and load material into outbound haul vehicles. Landfill Compactors Although landfill compactors are designed for spread- ing and compacting large volumes of material in a land- fill environment, in some instances, transfer stations might have a large enough working area to allow the compactor to be utilized to reduce waste volume prior to loading into haul vehicles. They offer two advantages in this type of application. 1. They are configured and guarded to work in this type of environment. 2. They achieve higher compression, shredding, and compaction levels compared to other machines. CAUTION! Operating a landfill compactor, track- type tractor, or track loader on a concrete floor could be counterproductive due to floor wear and maintenance costs. Always keep a layer of waste between the floor and machine until final movement of the day. Wheel loaders and/or excavators (wheeled/tracked) should be used to support these machines. (Please see #4 under previous Equipment Selection.) (It is not recommended to use a landfill compactor larger than the 826.) WorkTools for Material Recovery Facilities, Sorting andTransfer Stations As described in the opening statements of this section, the waste stream can consist of many different types of materials sometimes all blended together. For that rea- son, work tools become a very important part of moving, sorting, and dozing in waste applications. At the end of this section, there will be a Work Tool section and chart discussing possible tools to use. Please contact your dealer/regional waste representative for more information.

Hydraulic Excavators (Tracked andWheeled) Hydraulic excavators (tracked and wheeled) are often found in MRF, Sorting and Transfer stations either as a primary or secondary tool for loading haul vehicles/ conveyors/hoppers, tamping and finishing off loads, and sorting materials. Fast cycle times are the primary advantage of an Excavator over a Wheel Loader. Wheeled excavators come with a maneuverability advantage espe- cially in tight loading and stockpiling areas. Depending on the type of application, tracked and wheeled excava- tors would be equipped either for high production loading/ compaction, or with sorting/separating tools for recovery of recyclable materials. Again, keeping the Task, Tool, Machine concept in mind, you should take into account the following when sizing a tracked or wheeled excavator. Type of material and density, tonnage, work load for the machine, ceiling height, work area/swing area, floor size, along with maneuverability needed, ability to ‘see’ into haul vehicles or down into the floor load out area (cab risers), and reach. Special guarding packages, radiators, and revers- ing fans are options that may be needed to meet the most demanding needs. Track-TypeTractors Waste Handling Track-Type Tractors are designed, guarded, and built in factory so that they can accom- modate all waste applications. Although its primary use is for pushing and layering the waste and cover mate- rials in landfills they offer alternative waste movement and volume reduction in large transfer stations and C&D transfer stations. Ex: In surge pit operations where waste is tipped into a level below the tipping floor. Track- type tractors will push, layer, and compress/shred the material during operations and push into a haul vehicle. This method is used when maximum volume reduction is required or peak rate of waste exceeds available floor space.

21

Edition 47 21-7