3 Differences between One and Two Shaft Shredder

3 Differences between One and Two Shaft Shredder

When selecting an industrial shredder, customers often ask about the differences between a single shaft shredder and a double shaft shredder. While the appearance might seem the same, the two types differ significantly in three key areas. This article will detail these differences to help you make an informed decision.

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Machine Structure

A Single Shaft Shredder features a single shaft equipped with rotary blades, a hydraulic-actuated pusher arm, and a screen beneath the rotating shaft.

In contrast, a Double Shaft Shredder comprises two shafts of blades, or dual shearing shafts, with rotors made up of multiple blade disks counter-rotating against each other. This machine lacks a hydraulic-driven pusher or screen.

Application

Single Shaft Shredders are well-suited for processing thick and solid materials, including molding purgings, runners, sprues, plastic pallets, rubber rolls, wood lumbers, tree branches, bones, wood pallets, and rolls of film.

On the other hand, Double Shaft Shredders excel in shredding large, relatively light, or hollow products such as car/truck tires, film, plastic/steel drums, scrap electronics like TVs and computers, as well as fax/printing machines. They are also effective for mixed material streams like municipal solid waste (MSW).

Operation Process

When using a Single Shaft Shredder, the material fed into the hopper is driven by the pusher arm against the rotor. This ensures efficient shredding by the rotary knives, with the material repeatedly shredded until small enough to pass through the screen, resulting in uniform output particles.

For a Double Shaft Shredder, the material is fed into the machine where two cutting shafts hook and bite into it until it breaks down into pieces. This process does not involve a pusher ram or screen, producing irregular-sized shredded particles that fall directly to the collection bin or conveyor.

Additional Insights from Top Search Results

The primary differences between single, dual, and quad shaft shredders revolve around shred size and shaft speed. Shred size impacts whether the scraps will be large and irregular or small and uniform. Shaft speed determines the throughput rates and the types of materials that can be shredded. Single shaft shredders tend to operate at high speeds, producing small, consistent shreds. Dual shaft shredders operate at low speeds, yielding large, uneven shreds. Finally, quad shaft shredders, much like single shaft shredders, provide small, consistent shreds due to the incorporation of screens.

Do You Still Have Questions?

Wiscon Envirotech offers a wide range of shredding machines, including various models of single shaft and double shaft shredders, designed to meet diverse needs. If you're uncertain which shredder type best suits your recycling requirements, don't hesitate to reach out. Understanding the differences between single shaft and double shaft shredders is crucial for making an informed choice.

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