Rotary die softgel capsule machines typically consist of the forming unit, gelatin and material feeding systems, sealing and cutting mechanisms, temperature control systems, and auxiliary inspection components. Their core functions focus on stable temperature control, accurate dosing, reliable sealing, and consistent capsule forming. For precision components such as forming rollers, shafts, bushings, gears, and structural parts, Hansheng Automation can provide custom machining based on customer drawings and technical requirements, including prototype, single-piece, and small-batch production.
1. Main Structural Features
Double-Roller Forming Unit
The forming unit uses a pair of precision rollers with capsule cavities machined on their surfaces. During operation, the two gelatin ribbons are pressed together while the fill material is accurately injected between them, forming and sealing the softgel capsules.
Roller diameter, cavity accuracy, surface finish, and roller clearance all affect capsule quality. We can machine forming rollers, shafts, bushings, and related precision components according to customer drawings, selecting suitable materials and machining processes based on operating conditions.
Heating or cooling systems are commonly integrated into the rollers to maintain a stable forming temperature.
Gelatin and Material Feeding Systems
The gelatin feeding system generally uses a sealed tank with a screw conveyor to provide a continuous and uniform gelatin supply. The filling system uses a metering pump or plunger pump to accurately inject the material into the gelatin ribbons, helping reduce leakage and dosage variation.
Components such as screws, pump bodies, valves, and shafts often require tight dimensional control and reliable assembly. Hansheng Automation supports drawing-based custom machining for these non-standard components, with suitable processes selected according to quantity and precision requirements.
Transmission and Adjustment Mechanisms
The transmission system typically includes variable-speed motors, gears, couplings, and roller-gap adjustment mechanisms. These components allow the machine to adapt to different capsule sizes and production conditions.
We can manufacture transmission shafts, gears, bushings, flanges, and adjustment components through precision turning, milling, grinding, and other processes according to customer specifications.
2. Functional Modules
Sealing and Cutting Module
After the rollers form and seal the capsules, rotary knives trim excess gelatin around the capsule profile. The dimensional accuracy and positioning of the cutting components directly affect capsule appearance and sealing quality.
We can manufacture cutting tools, knife holders, locating components, and other related parts according to customer drawings, with material and machining processes selected for wear resistance, corrosion resistance, and service life.
Drying and Cooling Module
Some machines use ventilation or circulating-air systems after forming to reduce capsule temperature and prevent sticking or deformation. This structure may include air ducts, mounting brackets, shafts, and guide components.
Hansheng Automation can customize these components based on equipment layout, installation requirements, and dimensional tolerances.
Waste Recycling Structure
The forming process generates excess gelatin edges and trimming waste. Some machines use dedicated recovery systems to collect and reprocess these materials, helping reduce material waste.
Typical components include conveying parts, guides, containers, and connection structures. We can manufacture these non-standard parts to customer drawings, with appropriate materials and finishes for easy cleaning, corrosion resistance, and long-term operation.
3. Auxiliary Systems
Temperature Control System
The rollers, gelatin tank, and material pipelines may each use independent temperature-control modules, commonly with PID control. Different gelatin materials require different processing temperatures and control strategies.
Mechanical components such as mounting bases, fittings, connectors, and supports must also meet precise assembly requirements. We can manufacture these parts according to customer specifications, including material, tolerance, surface finish, and treatment requirements.
Online Inspection Module
Some production machines integrate vision inspection systems to monitor capsule dimensions, appearance, and sealing quality in real time. Defective capsules can then be identified and rejected automatically.
Related components may include mounting plates, camera brackets, positioning parts, inspection stations, and adjustment mechanisms. Hansheng Automation provides custom machining for these precision components based on equipment drawings and application requirements.
Quick-Disassembly and Cleaning Structure
Components that contact the product are generally designed for easy removal, cleaning, and maintenance. Modular and quick-disassembly structures help improve maintenance efficiency while maintaining reliable assembly.
We can manufacture these parts according to specific requirements for material, dimensional tolerance, surface roughness, and hygiene-related applications.
Overall, the key structural features of a rotary die softgel capsule machine include precision forming, stable feeding, temperature control, reliable sealing, and easy maintenance. Hansheng Automation specializes in precision machining of non-standard mechanical components and can manufacture custom parts for softgel capsule and pharmaceutical machinery based on customer drawings, 3D models, or samples.
