The new combine attachment is a 10-foot- (300-centimeter-) long cylindrical trommel
of mesh-like material called "hardware cloth" that rests atop the machine.
The structural framing used for trommels
traditionally consisted of a rectangular steel framework, typically using square or rectangular hollow sections for the members.
Next the waste goes into a rotating trommel
where sharp cutters break open bags and separate ferrous metals through magnetic separation.
Sherbrooke says its finger screens are built to be durable in the harsh C&D climate, and that they are less subject to being rendered ineffective by material that either clogs up trommels
or, in the case of wire and plastic sheet, wraps around the discs or stars in those types of screens.
The company's manufacturing process begins by breaking the bales apart with large trommels
. The bottles then ride on conveyors that pass by manual sorters who remove obvious unwanted items, such as metal and aluminum cans, dark-colored plastics and other non-PET bottles that have made it into the bales.
When the waste is reduced to a manageable size it is then fed through a series of conveyor belts, trommels
, magnets and blowers arriving finally at the picking station where it undergoes a final cleaning process.
Tiny Andrews, Industrial Sales Manager Manufactures hoppers heavy-duty disc screens and trommels
. Also bagging and coloring machines for wood and rubber
Screening equipment, from trommels
to vibrating screens to finger screens to disc screens, can facilitate further separation and sorting of mixed C&D material by sizing the material as it moves through the system, creating an overs line that is hand picked and an unders line that is separated into its constituent parts using automation in the form of magnets, air classification systems and sink tanks.
Components can be sold individually: granulators, bale breakers, spin dryers, trommels
, air conveying/ classification systems, float/sink classifiers, PET crystallizers, rotary hot-air dryers, and flake washers.
(401) 538-2382 Waste Processing Equipment Inc., Rainsville, AL (256) 638-6355 Wayne Engineering Corp., Cedar Falls, IA (319) 266-1721 Wilkens Industries Inc., Morris, MN (320) 589-1971 TROMMELS
Amadas Industries, Suffolk, VA (757) 539-0231 American Pulverizer Co., Saint Louis, MO (314) 781-6100 Andela Products Ltd., Richfield Springs, NY (315) 858-0055 CBT Wear Parts Inc., Richland Center, WI (888) 228-3625 Central Manufacturing, Groveland, IL (309) 387-6591 CP Manufacturing Inc., National City, CA (619) 477-3175 Diamond Z Manufacturing, Caldwell, ID (800) 949-2383 Doppstadt US, Avon, OH