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WEIGHBATCH is a weighing and mixing dosing integrated system. This machine is suitable to treat in particular granular plastic polymers and with other specific accessories can be used also for plastic re-grounded materials having different and not regular sizes. The construction is compact to minimize the overall dimensions and satisfy the higher feed rates. This system has been planned to serve both the extrusion processes and also the injection and moulding ones. This machine is very easy to install thanks to its self supporting structure, which allows both to fix it directly on the plasticizing well and to earth in order to serve different points. It can treat up to a maximum of 8 ingredients; The principal ingredients are dosed through electro-pneumatic controlled slide gates, while the additives are dosed through screw feeders to obtain the maximum precision.
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GraviMaster GM
For more complex and demanding tasks GraviMaster is the ideal solution. GraviMaster is designed to handle both virgin materials, regrind, masterbatch and other additives. This gravimetric blending series is suitable for both injection moulding, extrusion and blow-moulding applications. A unique integrated regrind control system is successfully solving many customers' problems with storage and reuse of regrind material.
Models:
GraviMaster GM05
GraviMaster GM1
GraviMaster GM2
Gravimaster GM5
GraviMaster GM10
GraviMaster GM25
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WEIGHBLEND is an ideal system to feed in continuous extrusion lines (blown film , cast, pipes and profiles ). This system is capable of dosing in continuous up to 5 polymers having a regular particle –size and checking in automatic mode the feed rate.
The use of this system is suggested starting from very low productions of 50 Kg/h and up to productions of 800 Kg/h and more. WEIGHBLEND can be equipped with an automatic weight/meter control. This has the purpose to keep constant in the time the weight of every meter of product which comes out from the line. WEIGHBLEND is constituted by a central gravimetric hopper for the principal ingredient and maximum 4 gravimetric dosing zones for the other ones. The machine has a self supporting structure which allows to fix it directly on the feeding well of the extrusion line.
Each dosing zone has its pre-storage hopper with interception slide gates electro-pneumatically controlled by the gravimetric logic.
The principal ingredient feeds directly for gravity the extrusion line, while the other ones are fed through screw feeders directly in to the feeding flow of the principal ingredient.
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Lüber core sand mixers and mixing plants are suitable for the preparation of many different core sand types such as
- Cold Box
- Betaset
- SO2 (Epoxy Gas Resin)
- CO2 hardening processes
- Hot Box, warm Box
- Inorganic binder systems
Plant for cold box core production process
- Day silo for 3 sand types
- Electronic weighing system 200 kg
- 1 core sand mixer UCM 150
- Mixer movable across 2 core shooter bunkers
- liquid components for the cold box process
- Electrical control unit Siemens S7-300
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Lüber core sand mixers and mixing plants are suitable for the preparation of many different core sand types such as:
- Cold Box
- Betaset
- SO2 (Epoxy Gas Resin)
- CO2 hardening processes
- Hot Box, warm Box
- Inorganic binder systems
Plant for 3 core sand manufacturing processes
- Day silo for one sand type
- Fluid bed coating unit / cooler
- Travelling electrical weighing system 100 kg
- 3 core sand mixers UCM 100 on drawers
- 2 distribution vehicles with 3 transport containers each
- 7 liquid components for the warm box, cold box and EGH processes
- Electrical control unit Siemens S7-300
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KLEIN bellow dosing equipment was particularly developed for use with chemical binders for foundry sands. The design is simple and robust.
Principle components:
- stainless steel bellows
- welded flange connections on both ends
- the seals do not come into contact with any binder
- operated by normal compressed air
- suction spring-actuated
Features:
- volumetric dosing independent of binder viscosity
- guaranteed repetitive accuracy +/- 0.5 %
- The bellow dosing equipment is absolutely maintenance-free.
- The desired dosing volume is easily adjustable by:
. manually infinitely adjustable set screw
. selection of two binder quantities using selector switches
. infinite adjustment of dosed quantity
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Foundries are always striving to improve the quality and the precision of their products, as well as aiming for the continual reduction of costs. The quality of cores has a very important part to play in reaching these objectives.
PRIMAFOND is constantly researching the most simple and efficient solutions, making core sand preparation and distribution systems of various types and for several processes, either simple or complex, according to the customer's requirements.
For the sand and resin mix preparation, the best mixing and homogeneity are obtained with batch mixers. The batch mixers made by Primafond, model MER 50 - MER 100 - MER 150 - MER 200 are of a all-steel construction, with wear-resistant mixing components, which are replaceable.
One batch mixer MER can together with a distribution system, feed one or more core-shooter machines. The use of only one mixer for many core-shooters gives many advantages including a practical and efficient installation and savings in maintenance operations.
Primafond makes simple, efficient and automatic systems for mixer sand charging, resin dosing and sand-mix distribution to several core-shooter machines . Our long experience in this field ensures excellent results.
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BLENDO: Continuous gravimetric blender.
HIGH METERING ACCURACY
Designed for metering granules in extrusion processes where metering accuracy and homogeneous additive dispersion are essential requirements.
EASY TO INSTALL
Insensitive to vibrations, BLENDO has been designed so that it can easily be installed directly on the feed hatch of the extruder in place of the conventional load hopper, or it can be installed on a platform.
FAST INGREDIENT CHANGE, FAST AND THOROUGH CLEANING
- Practical and easy access to all the components.
- Load hopper with sight glass to visually check the level and quick-release clip to easily remove the cover.
- Manual gate valve which allows inspecting the metering screw without having to empty the hopper.
- Unloading hatch for fast and easy emptying of the hopper.
- Metering screws easily accessible without the use of tools for fast and thorough cleaning.
EASE OF USE
Easy to use , just set the metering percentage.
MODELS
BLENDO is available in 12 models: 2, 3 or 4 ingredients for throughputs up to 150, 300, 600 and 1000 kg/h.
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DGM
GRAVIMETRIC DOSERS
The DGM gravimetric dosing units have been projected using a high innovative technology. Based on exclusive solutions, they satisfy the most demanding requirements ensuring unrivalled levels of precision. Stainless steel hoppers, electrical mixer, digital technology are only some advantages of the system, along with the double-shutter device and the free-weighing hopper; all these features make the DGM the most innovative machine currently available on the market.
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VOLLMAR®
- Gravimetric Dosing and Mixing Unit GRAMIX Compact 100
Gravimetric dosing and mixing unit operating in batch mode
Maximum of 4 dosing stations for main components and 4 for auxiliary components
Serial dosing of all formula components
Dosing of main components by slides and auxiliary components by screws
4 interchangeable dosing screws for different throughput ranges
Inclined dosing screws prevent continue flowing
Dead space-free mixer
Easy and quick cleaning when changing formula
Operator-friendly micro-processor control unit with:
- LC display
- CAN bus interface
- integrated control of a vacuum conveying system
- "double-batch" operating mode
Options:
- storage hoppers with level switch
- slide gate valve at the mixer outlet
- automatic feeding of the dosing stations
- clean-room version
- high-temperature version
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Fully automatic polyelectrolyte solution system for granular and concentrated liquid polyelectrolyte (for other products on request).
Designed as two-chamber pendulum system. Our systems achieve a reliably high quality in preparing polyelectrolytes while saving resources as much as possible.
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Accurate dosing and mixing unit for the supply of masterbatch and additives to the processing machine. Supplied with 3-phase dosing motor for optimum reliability and consistency. An efficient volumetric unit offering extremely high repeatability.
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Volumetric dosing and mixing unit designed for dosing of virgin materials, regrind, masterbatch and other additives. A unique in-built conveying system ensures a stable and continuous supply of raw materials. Suitable for any injection moulding, extrusion and blow-moulding applications.
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VOLLMAR®
- Volumetric Dosing and Mixing Unit VOLMIX E 30 LC
Volumetric, continuously operating dosing and mixing unit
Machine-dependent unit
Free flow supply of main component and dosed addition of max. 2 auxiliary components
Also for use on injection moulding machines and extruders
4 interchangeable dosing screws for different throughput ranges (from 0.3 to 27 kg/h)
Easy and quick cleaning when changing formula
Operator-friendly micro-processor control unit with:
- digital adjustment of all parameters
- 16-digit alphanumeric LC display
- data memory on electrically erasable EEPROM
Fault display by means of LED and in plain text on the LC display
Options:
- manual or automatic feeding of the dosing stations
- reduction hopper
- volume extension
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The feeders of the range “BH” are particularly suitable to dose with accuracy powder and granular materials. Their configuration make them in particular fit for materials with a great fluidity, preventing any possible “ siphon” effect; with the simple use of self-cleaning dosing screws,which are present in the standard range of accessories, is also possible the dosing of materials which are particularly sticky and plasticizing ones.
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Mixer-dispensers (powders, granulates)
