Description générale

Nos presses à granuler sont aussi disponibles dans la version avec double moteur



Convoyeur à vis :
Le convoyeur à vis est construit avec un pas variable et  commandé par un motoréducteur hydraulique.
Le corps et la vis (y compris l'arbre) sont fabriqués en acier inox AISI 304.
La vis a un arrêt d'urgence en cas de colmatage.

Conditionneur :
Le conditionneur est commandé par son moteur.
Deux raccords sont prévus pour l'entrée des liquides.
La machine est entièrement en acier inoxydable ainsi que l'arbre et les palettes.
L'épaisseur du corps est de 4 mm.
Pour obtenir les meilleures conditions de mélange et de conditionnement, l'homogénéisateur est équipé de palettes orientables.

Bloc presse à granulés :
 

Porte :
La porte de la machine est construite entièrement en acier inoxydable. Elle est équipée de deux groupes de couteaux coupe-granulés fixés sur un secteur indépendant de manière à permettre l'ouverture de la porte sans avoir besoin d'éloigner les couteaux.
Dispositifs de sécurité :
La porte a un système de sécurité constitué d'un piston pneumatique avec électrovanne à verrouillage actionné par la rotation de la poulie de conduite afin d'éviter l'ouverture de la machine en mouvement.
Transporteur :
La liaison entre la porte principale et le groupe d'alimentation est assurée par un convoyeur frontal construit en acier inox AISI 304 avec trappe d'inspection basculante protégée par une grille de sécurité.
Aimant :
Un aimant permanent est installé dans le transporteur pour empêcher les éléments  ferreux de s'introduire dans la chambre de granulation
Porte d'urgence :
Placée sur le convoyeur, avec commande pneumatique et électrovanne qui assure l'ouverture en cas de surcharge du moteur.
Arbre creux (rotor porte filière) :
 L' arbre creux est réalisé en acier forgé avec bague d'usure remplaçable.  Le plateau sur lequel s'appuie la filière est recouvert d'acier inoxydable. L'arbre creux est monté sur roulements à rouleaux coniques.

Soubassement :
La presse à granulés est construite avec un soubassement en fonte pour assurer une meilleure absorption des vibrations.

Arbre principal :
l'arbre principal est monté sur palier lisse.  La tête avant est chromée pour prévenir la corrosion et l'usure. Protection des roulements : les roulements sont protégés par des couvercles à labyrinthe et des joints étanches qui empêchent la poussière d'entrer.

Protection des roulements :
La bride à labyrinthe en acier inox ainsi qu'un anneau secondaire entre l'arbre creux et l'arbre principal préviennent des dommages aux roulements causés par la pénétration de poussière.

Transmission :
La puissance d'entrainement est obtenue par des courroies type de 5V.  Les courroies d'entraînement sont calculées avec un facteur de service de 1,7

Goupille de sécurité :
La presse est protégée contre les surcharges soudaines par une goupille de sécurité placée à l'arrière. La goupille  est calibrée en fonction de notre expérience pour se rompre en cas d'incident , pour éviter des dommages aux parties qui composent la machine.

Lubrification :
Les graisseurs des rouleaux et des roulements du rotor principal sont positionnés sur le côté arrière de l'arbre principal.  Cela permet la lubrification des rouleaux au travers de l'arbre principal lorsque la machine est en mouvement.

Le kit des outils comprend toutes les clefs et les vis pour les opérations d’entretien ordinaire.

Clef à cliquet avec jeu de douilles
Jeu de clés Allen
Jeu de vis de fixation

 
Caractéristiques techniques
Industrie de l'alimentation animalePuissance du moteur principalAliments bétailAliments volaille 
CLM 200 20 hp7.7 - 11.0 - 15.0 kW150 kg/h300 kg/h  
CLM 304 60 hp30 - 37 - 45 kW1.5 Ton/h2.5 Ton/h  
CLM 420 75hp37 - 55 kW2.5 Ton/h5.0 Ton/h  
CLM 420 125hp75 - 90 kW4.0 Ton/h6.0 Ton/h  
CLM 420 150hp110 kW6.0 Ton/h8.0 Ton/h  
CLM 420 Twin Motors55x2 kW6.0 Ton/h8.0 Ton/h 
CLM 520 180hp110 - 132 kW8.0 Ton/h10.0 Ton/h  
CLM 520 220hp160 kW9.0 Ton/h12.0 Ton/h  
CLM 520 Twin Motors90x2 kW9.0 Ton/h12.0 Ton/h 
CLM 630 220hp160 kW10.0 Ton/h15.0 Ton/h  
CLM 630 300hp200 - 220 kW12.0 Ton/h18.0 Ton/h  
CLM 630 Twin Motors110x2 kW12.0 Ton/h18.0 Ton/h 
CLM 800 380hp250 - 280 kW18.0 Ton/h22.0 Ton/h  
CLM 935 500hp 315 - 355 kWUp to 22.00 Ton/hUp to 35.00 Ton/h  
CLM 1000 500hp370 kwup to 25 Ton/hup to 45 Ton/h  
* Above mentioned data are purely “indicative” and “not binding” in any way

Optional

WAP remote rollers gap adjustment
detail
 
 

The rollers are regulated with a hydraulic piston operated by a hydraulic unit outside the machine but controlled from the control panel.

The position of the rollers is calculated with an angular potentiometer, installed behind the rollers (inside the main shaft). This potentiometer signals the angular position of the roller pins. The electrical panel controlling the entire system can calculate the distance between the rollers and the die through the signal picked up from 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.

When the piston has positioned the roller at the distance from the die set by the operator, the circuit is automatically locked by two valves, keeping the rollers in this position.

The circuit can achieve a maximum pressure of 250 bar.

The pressure required to move the piston, and thus regulate the rollers, is approximately 150 bar.

 

Position can be regulated quite rapidly: the roller can be brought 7-8 mm closer to or moved 7-8 mm away from the die in approximately 15 seconds.

For more information look at the following video: https://www.youtube.com/watch?v=ZdHHxJiZ0AQ

RAPID BLOC quick device for change dies
detail
 
 

This device makes it possible to replace the die in 10-20 minutes (depending on the size of the die). The system includes a stainless steel conical ring which is closed and held in place by a series of Belleville washer packs. This ring locks the die in place. The die is released by pressurizing a hydraulic circuit which presses on the washers and releases the elastic ring.

For more information look at the following video: https://www.youtube.com/watch?v=e1FuFMsKUII

Hydraulic push-off device for dies
detail
 
 

It is composed by a manual pump and a piston used to facilitate the removal of the die.

The piston is positioned between the rotor and the reinforcing flange so as to push out the die from its seat.

Automatic lubrication system
detail
 
 

This system includes a pump for high viscosity grease.

It has a paddle system to break up air bubbles. The system is connected to the press through a rotary distributor applied directly on the mill shaft.

Lubrication is controlled by an electric panel, included in the supply. This panel makes it possible to meter out the amount of grease required. This is done using two timers which enable you to regulate the lubrication and pause times

 

The group of lubrication has an electric pump with the following specifications:

●     Flow rate adjustable from 2.9 to 17 cc / min.

●     0,185 kW motor 400V50Hz

●     Reservoir of 10 kg made in mild steel

●     Filter

●     Pressure relief valve

●     Gauge

●     Minimum grease level

●     Progressive Dispenser for the distribution of grease on 2 points,

●     Inductive sensor PNP for the control of the cycle

●     Check valves from 1/8 output

Thermal insulation of conditioner
detail
 
 

Very useful in cold weather or in places with high temperature swings between day and night. It prevents the formation of condensation and avoid the formation of scabs into the conditioner.

Heating of conditioner by mean of oil
detail
 
 

To improve the meal conditioning at higher temperatures, La Meccanica's conditioner unit can be equipped with an external heating which uses low pressure steam to heat the thermal oil. It is also lined with an insulating material to enhance thermal efficiency and prevent condensation.

 

This system has considerable advantages compared to traditional steam heating:

●     It has a considerable thermal inertia

●     It is possible to use higher temperatures

●     The temperature distribution is uniform over the entire length of the machine

In the traditional steam heating, there is the risk of breakages and therefore the escape of steam from the outer sleeve due to the internal pressure

Heating of the main door
detail
 
 

The electrical heating of the main door prevents the formation of scabs.

Emergency level probe for front conveyor
detail
 
 

Especially in the case of formulas containing fat or oil, the pellet press machine is often subject to so-called "wet clogging."

The "wet clogging" is when the die starts to slide and to reject the product without overloading the motor: the only noticeable thing is a strong oscillation of the ammeter. In a few seconds you have the clogging in the die chamber and in the front conveyor.

In this case La Meccanica's level indicator reports the anomaly and ensures that the pellet press can be stopped without serious consequences.

Front bypass for meal
detail
 
 

For some production lines, it is requested the possibility to bypass the pellet mill,  sending the meal directly to the cooler. For this reason, La Meccanica's presses can be equipped with a bypass, controlled by a pneumatic piston, installed in the front  conveyor.

Automatic cleaning of the temperature probe
detail
 
 

The temperature probe is progressively covered by fouling by wet flours which can lengthen the time of reading, and then the reaction. This affects the efficiency of the control system of the process that is based on the temperature reading. La Meccanica's automatic cleaning system solves this problem:

this mechanical device allows to clean automatically the temperature probe by removing the material accumulated on it and which delays the reading of the temperature

IFM electronic control belts slip
detail
 
 

This is an electronic device that shut down the motor whenever the belts slip, thus preventing belts damage.

Device for die’s slow rotation
detail
 
 

This device is a great help in changing large size dies.

Motorized knives control
detail
 
 

On request we can supply the knives motorized for adjust the pellet length by mean of a remote control

Manual winch
detail
 
 

The manual winch is an alternative to the hydraulic hoist. Upon request, the pellet press can be equipped with a manual winch and special anchoring brackets to facilitate hoisting of the rollers and dies.

Hydraulic hoist for rollers and dies
detail
 
 

The easy-to-handle La Meccanica hydraulic carriage is equipped with special hooking devices designed to facilitate movement of the rollers and dies, particularly during installation and removal.

This hoist makes it possible to move the dies within the work area easily and safely.

Lamec Control System LCS 2000 FV
detail
 
 

The Lamec Control System LCS FV 2000 is an electrical panel with a Siemens PLC which controls the automatic operation of the pellet mill producing two adjusting loops .

The first loop regulates the flow rate of the screw feeder related to the absorption of the main motor. In particular, the system controls the speed of rotation of the screw and it acts on the frequency converter.

The second ring regulates the flow of steam added in the conditioner according to the temperature conditioning of the meal by opening or closing the motorized steam valve .

The control panel is equipped with a display and a keyboard for data entry work.

The system is particularly simple and does not require specialized personnel.

The system allows to automatically start the press and gradually reach the set value of the absorption of the main motor.

Simultaneously, the motorized steam valve is opened and adjusted so as to allow the placing of the steam up to the conditioning temperature request.

In case of emergency, the system operates on the emergency conveyor door in order to overcome possible overload situations. Simultaneously, the feed flow rate is reduced as well the steam. As soon as the pellet press machine overcomes the risk of overload,  the flow rate of the feed screw is gradually increased to reach the predefined motor load.

At the end of the process the device gradually reduces the speed of the feed screw and progressively closes the steam valve down to stop the system.

The system includes:

●     Electronic control panel for LCS PV complete with PLC Siemens Series 7

●     Watt-meter

●     Level indicator propeller CAM LOGIC

●     Detector of turns

●     Temperature sensor PT 100

●     Probe holder

●     Valves for modulating steam control

ON-OFF valve for regulating steam

Compact version
detail
 
 

A “Compact” version is available for all La Meccanica's models, significantly reducing the amount of space required by the machine. These compact models can resolve the space problems of some feed production facilities.

Customization
detail
 
 

Our objective is to supply all our customers a pellet press machine that best meets their needs. For this reason, all our models can be customized: the customer can choose the position of the motor,how the hatch has to be opened, the size and volume of the conditioners, the size of the feed screw, colour, etc.

 
 
 
 

SUPPORT TECHNIQUE

+39 049 9419000
help@lameccanica.it
Assistance technique