Front pulley scraper, ZC-3-Super MAX „Prestige”–very heavy type

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The front pulley scrapers, ZC-3-Super MAX “Prestige” – very heavy type, are designed for preliminary (in double systems) or main (in single systems) removal of load from the belt, eliminating a series of adverse phenomena such as pulley sticking, belt skid, belt slippage or belt destruction. They are installed in the front of the dump pulley.

The ZC-3-Super MAX “Prestige” – very heavy type scrapers are applied in extremely heavy duty services, especially when the belt’s speed is from 3.15 m/s to 8.00 m/s, dump pulleys have diameters of 1000, 1250, 1400 and 1600 mm, and load is very abrasive and highly granulated. Those scrapers are mainly designed for brown coal mines.

The ZC-3-Super MAX “Prestige” – very heavy type scrapers are manufactured for belts Bt=1600 – 2500 mm and are available with two spring tensioners connected with rotary discs with a steel cord.

Use

It is designed for cleaning the belt on the conveyor’s dump pulley.
It is designed for one-way and reverse operation.
It is designed for new and used belts.
It is designed for belts that are vulcanised, glued and joined with metal fastenings.
It is designed for belts operating at a speed from 3.15 m/s to 8.00 m/s.
It is designed for dump pulleys with a dimension from 1000 mm to 1600 mm.
It is designed for cleaning belts from most of transported materials (mainly brown coal and overburden).

Equipment characteristics (essential design features)

The load-bearing bar with the bearing ensures that the entire spring force is transferred to the scraper blades without the need to overcome the torsional resistance of the bar.
Bearing brackets compensate any dimensional inaccuracies of the pulley substructure or any assembly inaccuracies.
Covered two-side spring tensioners.
Cleaning scrapers made of flexible and extremely abrasion resistant PUR elastomer (as per the comparative research conducted by the Polymer Materials Department, the Institute of Materials Science of the West Pomeranian University of Technology in Szczecin).
Scrapers that dynamically adjust to the temporary position of the belt on the dump pulley.
Scrapers that sharpen automatically during operation.
Scrapers set independently on the pulley surface.
Scrapers made of PUR elastomer with dimensions that ensure the optimal width of the clearing zone.
Scrapers assembled (and disassembled) in the locked tool bar cartridge without the need to unscrew.
Easy-to-change scrapers (it is possible to knock out single components from the tool bar cartridge).
Telescopic arms with pipe flanges (assembly flanges) that facilitate the adjustment of the scraper to the pulley and that simplify the assembly process.
The lock on the telescopic tube that prevents any used scrapers from moving under the pulley.
The steel structure is sand-blasted and powder painted (RAL colour) or hot-dip galvanized.
Characteristics of springs ensure the once determined pressure force of blades to the belt (the scraper does not need to be additionally adjusted during the whole operation).
The scraper does not require any constant control (periodical controls conducted at the plant every 2-3 months).

Advantages of the equipment

Highly effective cleaning and small pressure force of the scraper to the belt.
Low inertia and high flexibility of the equipment operation.
The solid and compact design that enables the operation in the extremely difficult conditions.
The final wear and tear of scrapers does not cause that the belt is destroyed by metal construction components of the scraper.
Long service life of scrapers.
Fast and easy replacement of the used scrapers.

Notice

Dimensions of scrapers are tailored to dimensions of transverse conveyor substructures standardized according to the PN and DIN standards.

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