Yes. Operating a rotary die softgel capsule machine without gelatin ribbons can increase the risk of die wear and other mechanical problems, especially when the dies continue rotating under normal forming conditions.
During normal production, the gelatin ribbons provide the material interface between the rotary dies. They help distribute forming pressure and provide a certain cushioning effect as the upper and lower die cavities engage. When no gelatin ribbon is present, the dies may operate without the intended material layer between them, increasing direct mechanical contact, friction, and localized loading.
1. Why Can Empty Running Affect the Dies?
The rotary dies are precision components with machined capsule cavities and controlled forming surfaces. Without gelatin ribbons, the normal working conditions change significantly.
Continuous empty running may result in:
- Increased friction between contacting die surfaces
- Abnormal mechanical impact or loading
- Accelerated wear of die surfaces and cavity edges
- Higher operating temperature due to friction
- Potential damage to the die alignment and transmission system
The actual risk depends on the machine structure, die clearance, operating speed, lubrication condition, and duration of empty running.
2. What Should Be Done During Setup or Testing?
Short-term machine checks may be required during installation, maintenance, or troubleshooting, but operators should follow the equipment manufacturer's specified procedure rather than allowing the dies to run continuously at normal production speed without material.
Before starting production, the operator should confirm:
- The gelatin ribbons are correctly prepared and fed into the forming section.
- The upper and lower dies are properly aligned.
- The roller gap and forming pressure are within the specified range.
- The transmission and lubrication systems are operating normally.
The machine is running at an appropriate speed for the selected die and formulation.
3. Importance of Precision Die Components
The service life of rotary dies is closely related to their machining accuracy, material properties, surface condition, alignment, and operating environment. Precision components such as die shafts, locating parts, bushings, and transmission components also influence the stability of the forming system.
Hansheng Automation supports custom machining of precision mechanical components according to customer drawings and technical requirements, including shafts, bushings, gears, locating components, and other non-standard parts used in softgel capsule equipment.
In summary, running a rotary die softgel capsule machine without gelatin ribbons may increase die wear and should generally be avoided unless the equipment manufacturer specifically allows a particular no-load test procedure. For routine operation, the forming system should work under the intended material, pressure, speed, and lubrication conditions to help protect the dies and maintain stable equipment performance.
