Vertical balers tend to be more compact than horizontal balers and are used in facilities that produce lower amounts of waste, and deal with materials that are light in density and volume. With a large input area on the top of the vertical baler, the scrap or waste material is fed into a compression chamber where it is pounded and squeezed by metal rams into a compact, cubic bale. Vertical balers are generally electrically powered, with hydraulic systems which provide the necessary pressure to crush the materials, and help minimize heat production and energy loss.
After compression, the cubic bale is tightly bound using wire, plastic or string in order to maintain its compact shape. Vertical balers are typically single-load machines, but multi-bin vertical balers are available that have more than one chamber and can process different types or grades of materials. Output rate is lower for vertical balers whereas horizontal balers are able to run on a continuous process, and to handle heavier, denser materials. Horizontal balers, however, take up more floor space and this needs to be taken into consideration when determining choice of baler.
Typical scrap materials processed with a vertical baler include: corrugated cardboard, shrink-wrap, plastic bottles, aluminum cans and scrap textiles. Loading and unloading of vertical balers is often done manually, but automated systems can be installed to help with the process depending on the baled material. For high waste-producing industries, reducing the bulk of their waste material is important not only environmentally, but also economically.
Using compactors and balers to reduce the volume of waste makes it easier and cheaper to transport and dispose of, and also cuts back on the carbon dioxide emissions produced during the recycling process. Baling equipment is playing an important part in helping industrial businesses to be environmentally friendly.
Materials are baled and compacted in order to be shipped to recycling facilities to be used in producing other items, either within the same industry, or within an entirely different industry. Complete recycling systems can be designed around a basic baler, allowing businesses to be responsible in each stage of their waste management.