Equipment for the production of drugs in soft gelatin capsules
Soft gelatin capsules (softgels) are a premium dosage form ideal for liquid, paste-like, and oil-based fillers. INEX provides integrated technological lines—ranging from laboratory units to high-capacity industrial plants—engineered to handle complex formulations while strictly adhering to GMP standards.
Methods of Softgel Production
Two primary methods are utilized depending on the product requirements:
- Drip (Globular) Method: Based on the principle of simultaneous formation of a gelatin drop with a liquid medicinal core inside.
- Rotary Die (Pressing) Method: The most common industrial method, where gelatin ribbons are formed and capsules are punched/sealed by rotating dies, resulting in a characteristic horizontal seam.
Typical Production Line Components
A complete softgel manufacturing ecosystem includes several critical stages:
- Gelatin Preparation System: Jacketed reactors and mixers with vacuum de-aeration to ensure a bubble-free, temperature-stable gel mass for continuous operation.
- Filler Preparation Units: Specialized mixers and homogenizers for liquids, suspensions, and high-viscosity pastes, including filtration and buffer storage.
- Encapsulation Machine (Rotary Die): The heart of the line, featuring high-precision dosing pumps and interchangeable die rolls for various shapes and sizes.
- Drying Modules: Tumble dryers for initial shape setting followed by tunnel or tray drying systems with controlled dehumidification to achieve final moisture specifications.
- Post-Processing: Automated washing, polishing, inspection, and sorting units to prepare capsules for final packaging.
Why Partner with INEX?
- Custom Configurations: We adapt solutions for sensitive formulations, including light-sensitive or oxygen-reactive ingredients.
- Turnkey Project Management: From initial 3D layouts and technical specifications to delivery, installation, and IQ/OQ/PQ validation.
- System Integration: Seamless connectivity with HVAC systems, cleanroom environments, and downstream packaging lines, including CIP/WIP (Clean/Wash-in-Place) options.
- Technical Support: Expert guidance on formulation parameters (gel hardness, plasticizer selection) and supply of high-precision die rolls and spare parts.
Compliance and Validation
Our equipment is designed to exceed international standards:
- GMP Compliance: Ensures the highest level of hygiene and product safety.
- GAMP 5 & GMP Annex 11: Software and automation validation according to ISPE guidelines to ensure data integrity and process reliability.
Technical Specifications
- Encapsulation Type: Rotary Die (standard) or Drip method.
- Dosing Accuracy: ≤ ±1% for liquids.
- Capsule Shapes: Oval, Oblong, Round, Tube, and custom designs.
- Material of Construction: Stainless steel AISI 316L (product contact) and AISI 304.
- Control System: PLC with a multi-language HMI.
- Safety Features: Interlocked guarding and emergency stop protocols.
- Automation Level: Semi-automatic to fully integrated "lights-out" manufacturing.



