Polyurethane spiral rollers

Pre-grading without damage

This pre-grader model has polyurethane spiral rollers in the pre-grading bed. Due to the spiral shape, the crop is transported as damage-free as possible and the oversize is separated quickly and safely by adjusting the roller distance. The pre-sorter is equipped with a direct drive per roll. As a result, slip and wear are kept to a minimum, guaranteeing a long product lifespan. The pre-graderis available as standard in versions with 6 rollers, but can be expanded with additional rollers for a higher capacity.

Drive by means of engines and gear units per shaft (0,75 kW per shaft).
Product conveyor under the machines, equipped with belt guidance system for optimal belt control.
Discharge conveyors with double directive, so unloading at the left or right side of the machine can be easily set.
Distance between the rollers adjustable through hydraulic pump unit or hand spindle, settable from 5 - 59mm.
Bearing of the rollers through double bearings.
Easily adjustable angle of inclination.
Possibility (aftwerwards) to incorporate a continental web, thus increasing the cleaning capacity of the unit and to create a possibility for sorting.
Suspension of the rollers by means of a proper scissor construction.
BLC Line Module System.

Version with 7 or 8 rollers instead of 6.
Frequency converter onto drive of the pre-grader.
Undersize conveyor, slidable on rollers.
Self-cleaning pre-grader (Turbo Clean).
Electrical connection for an extra conveyor.
Supporting frame to use the machine as a standalone unit.
Product conveyor behind a standalone pre-grader (length is equal to conveyor for the undersize).

Model	BVS 116 PU	BVS 166 PU	BVS 206 PU	BVS 246 PU
Working width	1.100 mm	1.600 mm	2.000 mm	2.400 mm
Number of pre-grading rollers	6 (optional 7 or 8)	6 (optional 7 or 8)	6 (optional 7 or 8)	6 (optional 7 or 8)
Drive per roller	0.75 kW	0.75 kW	0.75 kW	0.75 kW
Length product conveyor (undersize)	2.400 mm	2.400 mm	2.900 mm	3.300 mm
Width product conveyor (undersize)	600 mm	600 mm	600 mm	600 mm
Drive product conveyor (undersize)	0.75 kW	0.75 kW	0.75 kW	0.75 kW

* Subject to technical changes.

Turbo Clean system on product cleaner with polyurethane spiral rollers (PU)

Watch the product video here.

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