Trommel Screen Introduction

A trommel screen, also known as rotary screen, is an essential unit which is used mainly in the mineral and solid-waste processing industries. It consists of a perforated cylindrical drum which is normally elevated at an angle at the feed end. Physical size separation is achieved as the feed material spirals down the rotating drum, where the undersized material smaller than the screen apertures passes through the screen, while the oversized material exits at the other end of the drum(via wikipedia).

Trommel Screen vs Vibrating Screen

Trommel screens are cheaper to produce than vibrating screens. They are vibration free which causes less noise than vibrating screens. Trommel screens are more mechanically robust than vibrating screens allowing it to last longer under mechanical stress.
However more material can be screened at once for a vibrating screen compared to a trommel screen. This is because only one part of the screen area of the trommel screen is utilised during the screening process whilst the entire screen is used for a vibrating screen. Trommel screens are also more susceptible to plugging and blinding, especially when different sized screen apertures are in series. Plugging is when material larger than the aperture may become stuck or wedged into the apertures and then may be forced through which is undesirable. Blinding is when wet material clump up and stick to the surface of the screen. The vibrations in the vibrating screens reduce the chance of plugging and blinding(via wikipedia).

Trommel Screen Technical Parameter

Model Capacity
Drum size
Feed size
Overall size
GTS-1015 5 to 20 3 1000×1500 less than 200 mm 2600x1400x1700 2200
GTS-1020 10 to 30 4 1000×2000 less than 200 mm 3400x1400x2200 2800
GTS-1225 20 to 80 5.5 1200×2500 less than 300 mm 4200x1500x2680 4200
GTS-1530 30 to 100 7.5 1500×3000 less than 300 mm 4500x1900x2820 5100
GTS-1545 50 to 120 11 1500×4500 less than 400 mm 6000x1900x3080 6000
GTS-1848 80 to 150 15 1800×4800 less than 400 mm 6500x2350x4000 7500
GTS-2055 120 to 250 22 2000×5500 less than 400 mm 7500x2550x4800 9600
GTS-2265 200 to 350 30 2200×6500 less than 400 mm 8500x2750x5000 12800