What are filling head systems? A comprehensive guide
Filling head systems — definition: Filling head systems are automated dosing and filling devices that accurately fill powder, granulate or pellets into drums, big bags, bags or process equipment. The HECHT LBK-EC filling head combines gravimetric dosing (OIML R 76, ±0.1%), VFD screw conveyor, containment coupling (OEB 1–4) and CIP cleaning per GMP Annex 1 (2022) and ATEX 2014/34/EU zone 21.
Key points
- Dosing accuracy: ±0.1% (OIML R 76) gravimetric — better than volumetric (±0.5–2%)
- Standards: OIML R 76 / GMP Annex 1 (2022) / ATEX 2014/34/EU / EHEDG Doc 44 / 21 CFR Part 11
- HECHT LBK-EC: VFD dosing, PTFE screw, CIP-cleanable, OEB 1–4, ATEX cat. 2D
- Application: API filling in pharma, food (EHEDG class II), chemicals, battery materials (LiFePO₄)
- Integration: OPC-UA/Profibus to MES/SCADA, 21 CFR Part 11 audit trail, ISA-88 batch control
Discover the complete guide to filling head systems via our Test & Trial Centre in Pörnbach, our filling head portfolio or our pharma filling head applications.
For production managers, QA specialists and innovation managers in the pharmaceutical and industrial sector, a reliable filling process is critical. Filling heads form the link between precision and consistency in the production of liquid and semi-solid products. In this guide we explain what filling head systems are, which challenges they solve and how HECHT adds value here.
What are filling head systems and why do they matter?
Filling head systems are components within packaging machines that dose the product and place it accurately into packaging. They are essential for ensuring the correct product quantity, minimising waste and maintaining consistent quality. Where precision and hygiene are top priorities, choosing the right filling head system is a strategic decision.
Common challenges without advanced filling head systems
- Over- or under-filling relative to fill specifications
- Contamination due to unsuitable materials or designs
- Irregular throughput and therefore lower efficiency
- High maintenance requirements and downtime
Dr. Ingrid Molenaar, QA specialist at PharmaNova: "Since we started using Hecht Technology's filling heads, we've seen a significant reduction in product deviations and downtime. That delivers not only efficiency, but also peace of mind."
How Hecht Technology filling head systems provide a solution
Hecht Technology develops advanced filling heads specifically designed for high precision and maximum hygiene. Through the use of high-quality materials and innovative sealing techniques, they meet strict pharmaceutical standards. In addition, the systems are modular and easy to integrate into existing lines.
Peter Janssen, production manager at MedPharm Industries: "Hecht Technology's filling head systems offer us unmatched flexibility. We can carry out product changeovers faster without any loss of quality."
Benefits of Hecht Technology's filling head systems
- Precision: consistent and accurate dosing
- Hygiene: easy to clean and compliant with GMP guidelines
- Durability: long service life with minimal wear
- Efficiency: higher production speeds with less downtime
- Flexibility: suitable for a wide range of products and packaging
Applications in the pharmaceutical and industrial sector
Filling head systems can be applied across a wide range of production processes, from liquid medicines to cosmetics and food products. Thanks to customisation options, they can be adapted to specific requirements, such as aseptic filling processes or corrosion-resistant applications.
The future of filling head systems at Hecht Technology
Hecht Technology continuously invests in research and development to create even smarter and more efficient filling heads. Think of connected sensor technology for process monitoring and predictive maintenance, further reducing downtime.
Innovation Manager Laura de Wit: "Our focus is on supporting customers with systems that not only perform today, but are also prepared for the challenges of tomorrow."
Conclusion
Filling head systems are a critical factor in the efficiency, quality and hygiene of pharmaceutical and industrial production lines. With its advanced solutions, Hecht Technology offers a reliable partner for these challenges, leading to lower costs and better end products.
FAQ — Filling head systems, the extensive guide
What is the difference between gravimetric and volumetric filling with a filling head?
Gravimetric (HECHT LBK-EC, OIML R 76): weighs each batch directly on a load cell, accuracy ±0.1% regardless of bulk density variation. Volumetric: measures volume via screw rotations, accuracy ±0.5–2% — sensitive to bulk density fluctuations (segregation, moisture). GMP Annex 1 and USP <905> uniformity requirements (RSD <0.5%) require gravimetric dosing at OEB 2+. Gravimetric dosing is standard in all HECHT LBK-EC systems.
Which products are suitable for a filling head system?
Free-flowing powders (Carr Index <15): directly applicable. Cohesive powders (Carr Index 15–35): vibration unit or enlarged hopper required. Highly cohesive (Carr Index >35): vacuum transport or screw with breaker pin as pre-feed. Granulates, pellets, crystals: adjust maximum screw speed (fragile products: low RPM). The HECHT Test & Trial Centre tests your product free of charge and advises on the optimal filling head configuration.
How long does validation of a filling head system take?
IQ: 0.5–1 day (installation verification, documentation check, OIML calibration). OQ: 1–2 days (functional tests, VFD characterisation, alarm verification, dosing accuracy ±0.1%). PQ: 3–5 production runs including RSD measurement (USP <905>, <0.5% target). Total IQ/OQ/PQ: 2–4 weeks. HECHT delivers the turnkey validation package per GAMP 5, including all protocols and reports.
Read also
- What types of big bag filling stations are there?
- Safety guidelines when working with filling head systems
- How do I integrate a filling head into my existing production line?
- Dust-reducing filling heads