An industrial shredder is a large, heavy-duty piece of machinery used to break up light and thick materials in order to recycle them or destroy things that are no longer useful. They are a green technology that turns things that would otherwise be worthless into raw materials for waste management or remanufacturing.
Industrial shredders come in a variety of forms, from large commercial shredders that prepare materials for recycling or disposal to office devices used to destroy confidential papers. Shredders have become a necessary component of production and manufacturing in recent years as a means of lowering the quantity of garbage that is disposed of in landfills.
Read More: best heavy duty shredder office use
Various Designs for Industrial Shredders
Shredders may be made to shred any kind of material; they range from little machines that can shred cardboard and paper to massive industrial machines that can shred sheet metal and mattresses. Types of shredders can be distinguished by their motor type—either electric or hydraulic. There are many different structural variables, such as single, double, and four shafts, to mention a few.
Shredder with only one shaft
Single shaft shredders, which include a screen bottom to filter materials to the appropriate size, a hydraulic pusher plate, and a single shaft with rotating blades are used for recycling trash. The single shaft shreds materials to a size of one or two inches while rotating at a low RPM. They are perfect for shredding plastic products and are utilized when a constant particle size is needed.
Shredder with Double Shaft
Shearing blades are positioned on two shafts in double or dual shaft shearing shredders, which revolve into one other slowly to silently shred big, high volume feed material into tiny pieces that range in size from one to five inches. When the shredder is operating, the low speed keeps dust from being created. Double shaft shredders are primarily designed to process huge amounts of bulk materials.
Shredder with three shafts
A three shaft shredder produces a steady flow of feedstock by having its three blades revolve at various rates. The screen that the material must pass through before exiting the shredding chamber determines the size selection for shredded items. The material is sent through the machine again until it reaches the appropriate size to pass through the screen if it is not tiny enough.
Shredder with Four Shafts
Four shearing rollers with four sets of shearing knife rollers with various cutting shapes are found in a four shaft shredder. Pre-shredding and secondary shredding can occur concurrently in a four shaft shredder, increasing production efficiency. Materials that need to be separated into uniformly sized particles are shredded using quad or four shaft shredders.
Hammermill Shredder, Horizontal and Vertical Models
Both horizontal and vertical hammermill shredders function by feeding materials into the machine and then repeatedly crushing it with strong hammers that weigh between 250 and 1000 pounds and spin between 500 and 700 revolutions per minute, driven by motors that have between 2000 and 10,000 horsepower. A steel drum with hammers fixed on a shaft spins quickly, breaking the material it is fed into tiny pieces.
Gravity discharge, pneumatic discharge, full circle screen, horizontal in feed, and lump breakers are the main types of hammermills. The working principle of a hammermill is largely the same regardless of style.
Hammermills use massive hammers attached to a rotor to break apart cars and heavy metal machines. They use a number of armed hammers that are propelled by electrical or diesel-powered outboard flywheels. To remove items that cannot be crushed, large, powerful hammermills have a manganese or T-1 liner with reject doors.
Hammermills are mostly used for the shredding of big machinery, trucks, autos, and automobiles. Hammermills can shred 350 tons of material or 450 automobiles per hour when operating at maximum efficiency. Every year, 2.5 million tons of high density, uniformly fragmented metal scrap are produced by hammermills.
Grinder machines use abrasives or compression to flatten the material in order to shave, chip, and grind big things into smaller ones. Materials are reduced to pieces that are no larger than half an inch by grinders. There are two types of grinders: horizontal and tub. Top-loading tub grinders are made to grind a wide range of materials. Horizontal grinders grind smoothly and consistently while using a conveyor belt. Similar to twin shaft shredders, grinders use two rows of incisive steel cutters that revolve slowly to break up material.
Materials can be offered as raw materials for remanufacturing after being turned into flakes or granules by granulators. They have an electric motor that rotates a rotor that is housed in a chamber and has cutting blades connected to it. They are available in a vast array of forms and sizes. The material is shredded into reusable granules by the rotor’s blades inside the chamber.
An industrial slitter is used to cut big, unwieldy rolls into smaller, easier-to-handle ones. The parent roll that requires adjustment is the huge roll. Both the breadth and the length of the roll may be decreased with a slitter.
Roll sitters and slitter rewinders are the two categories of industrial slitters. A roll sitter does not need the roll to be unwound; instead, it cuts through the roll to the core of the wrapped roll using a big circular blade. A slitter rewinder, in contrast to a roll sitter, reduces the roll’s dimensions as it winds from one roll to a take-up roll.
Both kinds of slitters can be modified to meet the requirements of a particular application. The entire roll will be utilized when using a roll sitter. The user can select the amount of a roll to trim with a slitter rewinder.