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What are the Structural Features of a Sugar Coating Machine?

2026.02.25

Author：sugar coating machine

The structural features of a sugar coating machine are mainly reflected in its transmission system, pot design, heating device, auxiliary components, and material selection. These designs collectively ensure efficient operation and coating quality. The following are the main structural features of a sugar coating machine:

1. Transmission System

Worm Gear Drive: Sugar coating machines typically use a worm gear drive structure. This design ensures smooth operation, low noise, and a self-locking pot body to prevent tilting or movement due to vibration or external forces during operation, ensuring operational safety.

Stepless Speed Regulation: Some sugar coating machines are equipped with a stepless speed-regulating motor, allowing flexible adjustment of the pot speed according to process requirements, adapting to the coating requirements of different materials.

2. Pot Design

Adjustable Tilting Angle: The tilt angle of the sugar coating pot is usually adjustable. Adjusting the tilt angle changes the movement trajectory of the material within the pot, optimizing the coating effect. For example, increasing the tilt angle speeds up material tumbling, reducing coating time.

Smooth Inner Wall: The inner wall of the pot is precision polished, resulting in a smooth surface without dead corners, preventing material adhesion or residue, and facilitating cleaning and maintenance.

Large Capacity Design: The pot capacity is designed according to production scale to meet the needs of small-batch trial production or large-scale continuous production.

3. Heating Device

Resistance Wire Heating: Built-in resistance wire heating system supports graded temperature control, allowing precise temperature control according to coating process requirements. For example, a low-temperature range is used for initial syrup drying, and a high-temperature range is used for rapid coating layer curing.

Hot Air Circulation: Some coating machines are equipped with a hot air circulation system, which uses a fan to evenly blow hot air into the pot, accelerating moisture evaporation and improving coating efficiency.

Temperature Uniformity: The heating device design ensures uniform temperature distribution within the pot, avoiding localized overheating or underheating, and guaranteeing consistent coating quality.

4. Auxiliary Components

Spray Gun System: Equipped with an adjustable angle and flow rate spray gun for evenly spraying syrup or mixed slurry. The spray gun design must prevent clogging and ensure good atomization.

Exhaust System: Equipped with exhaust ducts and a dust removal device to promptly remove moisture from the pot, preventing excessive drying or clumping of the syrup, while also reducing dust pollution.

Observation Window: A transparent observation window is provided on the side or top of the coating pot, allowing operators to monitor the coating process in real time and adjust process parameters.

5. Material Selection

Stainless Steel: The pot body and key components are typically made of stainless steel (such as 304 or 316L), which is corrosion-resistant, easy to clean, and meets GMP requirements for pharmaceutical production.

Copper Pot Body: Some high-end sugar coating machines use copper pot bodies, utilizing copper's excellent thermal conductivity to improve temperature uniformity. The smooth surface of copper also reduces material adhesion.

Sealed Design: A sealed structure is used between the transmission components and the pot body to prevent dust or liquid ingress, extending the equipment's lifespan.

6. Safety and Convenience

Emergency Stop Button: The equipment's control panel is equipped with an emergency stop button, allowing for quick shutdown in emergencies and ensuring operational safety.

Casing Design: Lockable casters are installed at the bottom for easy movement and positioning, adapting to different production scenarios.

Modular Design: Some sugar coating machines adopt a modular structure, facilitating disassembly, maintenance, and upgrades, reducing maintenance costs.

7. Automated Control (Optional)

PLC Control System: Some high-end coating machines are equipped with a PLC control system, which can automatically control parameters such as temperature, speed, and liquid spraying volume, improving production stability and repeatability.

Touchscreen Operation: Process parameters can be set via a touchscreen, and the operating status can be displayed in real time, simplifying the operation process and reducing human error.

Qingdao Chenan Machinery Co., Ltd. has the advantage of developing and producing rubber winding equipment, with higher technology than various equipment assembly manufacturers in the industry. For more information about sugar coating machine, please contact us.

Company: Qingdao Chenan Machinery Co., Ltd.

Address: Yanjialing Industrial Park, East Chengma Road, Tongji New Economic Zone, Jimo District, Qingdao City, Shandong Province

Email: qdcajx@gmail.com