Rotary Screener, also called Trommel, is a cylindrical drum-like sieving machine used to separate materials by size. It consists of a perforated cylindrical drum that is usually inclined at an angle and rotates slowly, which makes the materials to pass through the screen, while larger materials are retained inside the drum and eventually discharged at the other end.

Rotary Screen

Application

Rotary screen machines are commonly used in the mining processing, coal processing, power plant, waste management, waste recycling, topsoil quarry separation, landfill, and composting, building materials industries ect.

Commonly, rotary screen is processing for separating materials such as soil, gold, diamond, rocks, sand, granite, coal, solid waste, sand, gravel and other aggregates.

Working Principle

Trommel screen, or rotary screen, separates materials based on sizes as the following process:
1.Material Feeding: Material is fed into a rotating cylindrical drum, either through a hopper or a conveyor system.
2.Rotating and Lifting: The drum rotates, causing internal lifter bars to lift and tumble the material, promoting even distribution and thorough mixing.
3.Screening: As the drum rotates, smaller particles pass through the perforations in the drum’s surface and are collected.
4.Movement and Discharging: Larger materials that do not fit through the perforations move along the drum due to its slight tilt and rotational movement, eventually exiting at the opposite end as the oversized materials.
The working efficiency of a trommel screener depends on factors like the drum’s speed, angle, diameter, length, and the size of the perforations.

Features

  1. Low cost.
  2. Includes the washing function and separating function, very high efficiency. 3. Small Volume, easy movable, support wheels.

4.Diesel engine / electric motor available.

5. Easy and convenient operation.

6. Strong body,the size and capacity can be customized.

Specifications

Rotary Screen Customer Case

Working Video of Rotary Screen

Specifications of Rotary Screen


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