Vibrating screens are used to remove grain and small particles from the pellet flow. These are very compact machines, especially effective for cleaning pellets or sorting flour. In the La Meccanica vibrating sieve, the incoming product is aligned over the entire surface of the sieve and evenly distributed over the sieve thanks to the static distributor adjustable from the outside. The mechanical action of the sieve is guaranteed by two vibrating motors located under the sieve body, which allows easy access to the counterweights.

  • The pellet at the sieve inlet is aligned across the entire width of the surface evenly distributed by means of a sieve with a static spreader adjustable from the outside
  • rugged body Manufactured from 3 mm mild steel sheet with side reinforcements, the body is mounted on 8 “soft” springs that provide almost complete absorption of dynamic impact
  • The sieves are made of stainless steel, tensioned by means of independentand adjustable springs and are mounted on two intermediate calipers that increase the tension
  • Screens are easy to change from the rear of the machine
  • the mechanical action of the sieve is carried out with the help of two vibrating motors


Model pellet performance motor power (kW) screening surface (sq.m)    
VB 1-06-13 5 2 x 550 1 x 0.82 3515_SCHEDA_VBR_1_06_13_7.pdf
VB 1-10-13 9 2 x 800 1 x 1.35
VB 2-06-13 16 2 x 800 2 x 0.82  3515_SCHEDA_VB_2_06_13_5.pdf VB-2-06-13.dwg
VB 2-10-13 30 2 x 1200 2 x 1.35  3515_SCHEDA_VB_2_10_13_5.pdf VB-2-10-13.dwg
VB 2-15-18​ 60 2 x 2400 2 x 2.27 3518_SCHEDA_VB_2_15_18
VB 3-06-13 16 2X800 3X0.82
VB 3-10-13 30 2 x 1200 3 x 1.35 VB_3_10_13_4.pdf
VB 3-15-18 60 2 x 1960 3 x 2.27    


The rollers are adjusted by a hydraulic piston driven by a hydraulic device located outside the machine and controlled from the control panel.

The position of the rollers is calculated by means of an angular potentiometer mounted behind the rollers (inside the main shaft). The potentiometer signals the angular position of the roller pins. By operating the entire system from the control panel, the distance between the rollers and the die can be calculated using the signal transmitted by the potentiometer.

At the electronic panel, the operator chooses the roller position. The panel pressurizes the hydraulic circuit and moves the piston until the rollers reach the desired position.

From the electrical panel, the operator determines the position of the rollers by applying pressure to the hydraulic system and moving the piston until the rollers reach the desired position. Once the desired position has been reached, the system is locked and held in position by two valves.

The maximum pressure reached by the hydraulic system is 250 bar, and the required pressure for moving the piston and adjusting the rollers is 150 bar.

The adjustment is done quite quickly: you can move the rollers closer or further away from the matrix by 7-8 mm, in each direction in about 15 seconds.

For more information, watch the following video: Automatic Rollers Adjustment (WAP System)

rapid bloc quick device for change dies.jpgrapid bloc quick device for change dies-2.jpg

The device allows replacing the matrix in 10-20 minutes, depending on its size. The system includes a tapered stainless steel ring that is closed and held in place by Belleville disc springs.

This ring locks the die in place. The matrix is released by pressure on the hydraulic system, which pushes the springs to release the elastic ring.

For more information, watch the following video: Rapid Block System

hydraulic push off devices.jpg

The system consists of a hand pump and a piston, which are needed to dismantle the die.

The piston is installed between the rotor and the reinforcement flange so as to push the die out of its seat.


automatic lubrication system.jpg automatic lubrication system2.jpg

This system includes a high viscosity grease pump.

It is equipped with blades to break up possible air bubbles. The system is connected to the press via a rotary distributor connected directly to the main shaft.

Lubrication is controlled by an electrical panel that is included in the delivery. The panel allows you to measure the required amount of grease using two timers to regulate the time for applying grease and pause.


The pump has the following characteristics:

● the flow is adjustable from 2.9 to 17 cc / min.

● motor 0.185 kW, 400V, 50Hz

● steel tank for 10 kg

● filter

● pressure relief valve

● pressure gauge

● indicator of minimum lubricant level

● progressive dispenser for distributing grease at two points

● inductive PNP sensor for cycle monitoring

● control valves for 1/8 outlet