The dry substances you work with, sometimes don’t have a natural flow.
The accurate dosing of these substances is therefore often a challenge.
In conventional machines screws and stirring arms are applied to dose the dry substances. The substance is in motion, but there is a risk of damage, segregation, ratholing, bridging and compacting of your dry material.
As a result the dosing is not accurate, material is lost and the continuous flow of your production process is at risk.
In addition, the many moving components and contact parts require extra maintenance, so there is a relatively large risk of damage.
Hethon dosing machines are equipped with a Flexible Wall Hopper:
a hopper with a flexible exterior of sustainable Polyurethane.
By externally, mechanically and evenly massaging the walls of the hopper, by use of paddles, the dry substances continuously keep in motion.
Thus the material is transported smoothly towards the dosing screw.
As the mechanical paddles are not inside the wall hopper, as opposed to the stirring arms and screws, the dry material will not get damaged and ratholing or bridging is prevented.
Therefore even poorly flowing and compacting raw materials are easily and accurately dosed.
It is also possible to have the screw and the paddles move quicker or more slowly, independently. This way one can fiddle with the proper settings.
By externally massaging the hopper walls, by use of paddles, the dry substances continuously keep in motion and prevents Bridging and Ratholing.
HETHON Feeders with two drives are suited to dose bad flowing dry products accurately at various feed rates. When using the 1 drive type at slow speed (=low capacity) the agitation is proportionally decreased.
When using the 2 drive type with low capacity, the agitation drive can be adjusted at any required rate independently from the feed rate.
Your benefits of a HETHON Feeder
• Prevent ratholing, bridging and damage to the material
• Minimal power consumption
• Easy to clean due to detachable components
• Low-maintenance because of few wear points
• Stable and strong thanks to high-quality Inox tube frame construction
• Separate paddle propulsion possible
• Limited segregation
• 4 easily detachable doors
• Steel profile cast in the hopper for stable retrieval
• Hopper available in 5 versions
• Very few contact elements
• Excellent price-performance ratio
How ratholing starts and agitating helps Katechu powder
Our Feeders are used for the accurate dosing of many dry substances. For every application there is a Flexible Wall Hopper with the appropriate specifications.
The easily detachable dosing hoppers can, as an exchange hopper, be conveniently stored elsewhere. This saves cleaning costs, for instance in case of colour changes or pigments.
The white Hopper is the standard one.
Hethon has FDA certified hoppers for your food application to ensure all relevant parts meet the requirements of set rules.
For ATEX applications HETHON developed an Anti - static Hopper to put in an ATEX Feeder.
Is your application not included? Feel free to enquire about the possibilities for your process!
In order to achieve optimal stability our constructions are not made of sheet metal but from solid steel tube frames. These are manufactured from SUS 304 or SUS 316. The contact surfaces are made of Polyurethane, SUS 316 POM. These materials have an excellent chemical resistance and are suitable for virtually all foodstuffs and pharmaceutical applications. The frame is constructed so heavily that our dosing device can even be used as a support for a silo. The HETHON Feeder can also be installed as a dosing machine hanging underneath a silo.
HETHON Feeders have a long lifespan and require little maintenance as a consequence of a minimum number of moving parts being subject to wear.
As all parts are easily detachable, our Feeders are very easy to clean. Our maintenance department is at your service to keep our products in production for many years. A lifetime over 23 years in heavenly conditions is no exception.
Moreover, your own maintenance department can easily carry out the work activities using the included manual or with the help of our specialists.
We are working on a hopper which is approved for ATEX and FDA togheter in one hopper.
It's a long way to get here, but we are very close! Once the material has been made, it is tested in a lab, where we can apply for certification. Once this has happened, you can read here the text that we can also deliver this.
Looking forward to this in 2021!
Paprika powder is a good example of an unexpected aggressive powder. We have good experiences and references for dosing this with our special hoppers!
And for example Lime. For this we also have very good, special made, solution!
It’s all about the flow!
The flow in your business: that is what we, at HETHON , are here for! For decades our Feeders have applied a perfectly dosed flow of hard-to-dose materials.
* Feeder 30, 40, 60 of 80: Largest possible screw, but only WITHOUT nozzle!
** Standard RPM of the screw for Feeder 40 - 80.
Speeds exceeding 120 RPM are not recommended.
*** At 100% filling degree of the screw CR = Screw with central axe
If necessary, Feeders 40, 50, 60 and 70 can handle screw diameters started from 13 mm.
• Frequency-driven capacity control for volumetric continuous or batch
• Fine dosing control at high/low speed for accurate batch doses
• Controlled weighing-electronics via the Loss In Weight principle
for utterly accurate continuous or batch doses
• Inputs and outputs for external signals for automatic dosing
This is why you should choose a HETHON Feeder.