Produkter
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Extrudering (Hosokawa
Bepex)Home
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Bextruder
BX
Bexroller BR
Gear
Pelletizer
Extrudomix
Pelletizing
Technology
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The Bextruder BX has two counter rotating, adjustable speed, independent rotors. The upper rotor has inclined baffle plates to ensure a good mixture and to convey the material evenly downwards. The lower rotor is designed with bent arms and densifies the material and conveys it through the cylindrical screen basket. The lower rotor is also designed to measure torque so that the optimum process speed can be achieved. |
The drive is situated according to the application below or above the product chamber in a closed housing. Product discharge is effected by a vibrating chute or rotating disc when the drive is positioned below the extrusion chamber. The products exhibit good dispersion, compression and dissolution properties and the diameter of the cylindrical pellets range in size from 0.3-3mm.
 Bextruder |
The rotors have plug
connections to the drive shafts. Rotors and basket screen cylinders are very
accessible and can be easily changed.
Soft Product Densification |
Accessories:
Different rotors
Screen
baskets with different hole diameters and different wallthicknesses
Outside rotating cutting knife
Vibration discharge chute
Rotation disc for product discharge
Blow-off ring for product cooling and separation
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The Bexroller is designed for “spheronization” from softer, often extruded material. The Bexroller is designed with a rotating disk surrounded by a fixed wall. Air is purged between the disk and the wall. The air serves as a non-contact seal.
As the disk is rotated, the small, initially cylindrical material is rolled from the disk to the stationary wall and then cascaded back to the rotating disk. This motion causes a rounding effect on the material. The drive with frequency converter and electric control enabels exact speed regulation.For fast cleaning the disc can easily be exchanged. The purge air quantity is adjustable and can be adapted to assist optimum product movement. The degree of spheronization depends on the batch time. Increased time yields more perfect particles.
 Bexroller BR |
The
product is discharged from a small opening in the vessel wall when the process
is complete. The spherical particles can then undergo either coating, drying or
further processing. |
 Bexroller principle |
In
the cylindrical product chamber a horizontal
disc is rotating. The drive with frequency converter and
electric control enabels exact speed regulation. For fast cleaning
the disc kan easily be exchanged. A gap air purge prevents the
product from reaching the area below the disc.The purge air quantity
is adjustable and can be adapted to assist optimum product movement.
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Hosokawa Bepex GmbH's Gear Pelletizer is designed for the extrusion of stable, cylindrical pellets.
A pair of gear type toothed counter-rotating rolls sit beneath the feeding hopper and product is pulled through the nozzle bores that are located between the teeth. As the product passes through the press channels, it is densified into cylindrical shaped pellets.
 Gear Pelletizer principle |
Typically gravity force
feeding is sufficient. However, for products with poor flow
characteristics,
agitating elements are installed in the feed hopper. A specially designed feed
hopper with a screw-like agitator is used for viscoplastic feed materials. Rolls are sealed at both sides by cheek plates to prevent any material from
escaping. Adjustable cutting knives are installed to improve the product
discharge. A gasketed cover ensures dust-free operation and is okay for use when purging is done with inert gas or solvents are present. |
 Gear Pelletizer GCS |
The
pellet diameter is determined by the diameter of the press channel. With gear
pelletizing machines, stable cylindrical pellets with a diameter range of 1 -
10 mm can be produced. The cylindrical pellets produce a smooth surface, constant diameter and are relatively straight. Often the length of the single pellets is very uniform.
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| Applications Include: | |
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Food Colours |
Sweeteners |
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Dough |
Flavourings |
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Icing Cream |
Cellulose |
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| Extrud-O-Mix™ Mixer/Extruder |
Extrud-O-Mix™ Mixer/Extruder for continous mixing of solids and liquids. An efficient solution to continuous mixing of solids and liquids where very viscous pasta and plastic masses are handled. It is also useful following batch premixers or for premixing ahead of batch equipment. Dry materials may be thoroughly mixed and extruded with relatively small quantities of liquids for agglomeration, or relatively large amounts of liquids for processing pasty masses.
The Extrudomix has a single horisontal shaft, carrying rows of hammers arranged in a spiral pattern that moves the material through the chamber.
Stationary anvils, attached to the housing, are inserted between the rotating hammers. Material is fed into the housing at one end and forced forward by the rotating hammer until it comes into contact with the stationary anvils. As the blade passes the anvil, a portion of the material is moved forward and the remainder lags behind. The action of the anvils prevent the material from rotating with the shaft. Thus, the effect of the unit is to give a continious kneading, mulling and mixing action on materials ranging from light and medium stiff pastes to relatively heavy plastic-like doughs and putty. Various orifice plates and extrusion dies may be installed within the barrel and at the discharge end of the unit to vary the mixing action. Dies can be used to extrude material in various sizes and shapes.
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