How waste bag openers used in waste sorting plant ?

These waste bag openers are very powerful to be installed at the head of treatment plants 

for municipal solid waste. 

They are characterized by a high reliability thanks to a treatment 

capacity and to couples of considerable magnitude.

Waste bag openers are innovative and specific machine that allows the opening and emptying 

of bags containing the material, the construction method adopted also allows you to rip and 

empty 98% of bags introduced without cutting or damaging the contents. The bag opener 

ensures optimum opening of bags of different sizes and a constant supply to the following 

treatments: it is designed as a modular system, easily adaptable to individual needs.

The machine turns out to be of great reliability and does not require frequent cleaning 

operations since equipped with a special system that does not allow the winding of long products 

(films, holding, VHS tapes, etc.), around the rotor while keeping the same in conditions of 

extreme cleanliness. Furthermore, the conformation of the machine is such as to ensure the 

feeding of the downstream plants in an adjustable manner and constant, ensuring for this constancy of production.

ZhongCheng’s bag openers , have electro-hydraulic counter-rotating rotors and are constituted 

by a grinding chamber in sturdy electro-welded structure appropriately sized rotors grinding, 

inserts cleaners, large planetary gears, support stand and feed hopper. The criterion of operation 

allows these bag openers work with the rotors in counter sense and vice versa.

The essential feature of these applications is certainly the sturdiness which together with the 

large values of torque applied to trees and to a sophisticated electronic control system pressures, 

make these machines a reliable and highly productive. The rotors are equipped with which these 

machines are made of alloy steel of prime quality.

Their shape, thickness, and number of knoves are defined in function of the material to be treated 

and of the size required at the exit. The control system of the machine is able to adjust the pressure 

up to a maximum value, adjusted by the manufacturer, to the above which intervenes a safety 

function which reverses the direction of rotation of the rotors to reject the materials too tenacious.

The machine can work with the rotors in clockwise and counterclockwise. In summary this type of 

machine is geared to adjusting volume of incoming waste, which is obtained through the process of 

continuous shearing of: municipal solid waste as such, waste from waste collection, waste of twigs 

and other material to be composted, waste wood, pallets etc.

The uniqueness of this application lies in the fact that these machines do not subject the material to 

be treated to a third cut but rather ‘to a break for tearing. Everything ‘are specifically designed for 

treatment plants as selection RSU, incineration, waste from waste collection, etc. 

The blades of these machines are made of alloy steel and wear.