Telescopic funnels can have different designs, depending on the type of gravity pipes, their diameter and the profile option (round, square, rectangular). This element is manufactured from high-strength structural and standard galvanized sheet stainless steel.

The telescopic function is provided by the presence of a special flexible insert, which is used as:

- strong tarpaulin;

- special reinforced burlap;

- corrugations made of polymer material.

The flexible insert is securely fixed with special clamps, ensuring independent fastening of the upper and lower part of the tear. With the correct selection of the telescopic boom, vibrations from one level of the gravity system will not be transmitted to other elements of the equipment. The noise level is reduced, labor productivity is improved, less grain fight is ensured.