HECHT Technology offers a comprehensive range of powder handling equipment for the process industry. Our product range includes solutions such as endless liner systems for contamination-free bulk transfer and powder dosing systems for precise and safe powder feeding — engineered for pharmaceutical, chemical, food, and battery applications.
Feeding screws for powders and granules
The HECHT Technology feeding screw is the solution for accurate powder transport in pharmaceutical and chemical processes. With volumetric dosing and repeatability of up to ±1%, the system ensures consistent quality. Ideal for small to medium batches, easy to operate and low-maintenance. Suitable for ATEX environments.
Dosing systems for powders and granules
The accuracy of the dosing and weighing unit often determines the quality of the end product. HECHT supplies dosing systems for powders and granules in pharma, chemicals, food and battery production: from individual feeding screws, dosing valves and dosing gates to complete weighing and dosing installations that dose directly from big bags, drums or sacks.
Which dosing system suits your process?
| Dosing element | Principle | Best suited for |
|---|---|---|
| Feeding screw | Volumetric, or gravimetric on load cells (loss-in-weight) | A wide range of powders and granules, batch and continuous |
| Dosing valve | Volumetric, via controlled opening time | Compact dosing above mixers, reactors and packaging lines |
| Dosing gate | Controlled discharge from a buffer or storage container | Even feed to downstream processes |
| Flexible dosing system (FDS) | Shut-off and dosing in one component | Integration into virtually any filling or dosing installation |
Volumetric or gravimetric dosing?
Volumetric dosing meters a fixed volume per revolution or opening. It is robust and cost-effective for products with a stable bulk density. Gravimetric dosing weighs continuously and corrects automatically for density variations: the choice when material cost, quality requirements or GMP documentation leave little room for deviation. For a full explanation, read what is a dosing system.
Requirements our dosing components meet
- maximum product protection
- dead space-free design
- residue-free emptying
- easy handling
- easy to clean surface
- absolute hygiene
Dosing systems for the food industry
In food and feed production, dosing accuracy determines recipe consistency, label compliance and allergen safety. HECHT dosing components are dead space-free and easy to clean, so ingredient changeovers are fast, and they can be combined with big bag and bag dump stations for macro, minor and micro ingredients.
Dosing under containment and ATEX
For pharmaceutical actives and toxic chemicals, we connect dosing to a closed supply, such as an endless liner or split butterfly valve, so operator and product stay separated. For combustible powders, the system is earthed and built ATEX-compliant.
Test with your own product
How a powder behaves in a dosing element only becomes clear in practice. At the HECHT Test & Trial Centre in Pörnbach we test your product for dosing accuracy and throughput before you invest. Contact us for a dosing analysis.
Frequently asked questions about dosing systems
What is the difference between a feeding screw and a dosing valve?
A feeding screw discharges product continuously or per batch via a rotating screw and suits a wide range of powders. A dosing valve doses via a controlled opening time and is compact; ideal for batch dosing directly above a mixer or packaging line.
Can I dose directly from a big bag?
Yes. A big bag discharge station with a feeding screw or dosing valve discharges the product dust-free and dosed into the process. See emptying big bags.
Are the dosing systems suitable for GMP and food?
Yes. The components are dead space-free, easy to clean and empty without residue; versions for GMP, food and ATEX applications are available.