YENCHEN MACHINERY CO., LTD. - Yenchen Machinery - leading pharmaceutical machinery manufacture in Taiwan

FAQs | Critical Operating Parameters for Side Spray | Manufacturing Equipment for Pharmaceutical Industry | Yenchen

Yenchen is a high-quality Solid Dosage Line, Pellet Machine Production Line, Syrup Line, Injection Line, Ointment Line, Extraction & Concentration Turn Key Equipments supplier from Taiwan since 1967. Yenchen was established in 1967, our products and services are widely used in the pharmaceutical, food, biotechnology, chemical, and cosmetic fields, which include solid dosage line, pellet machine production line, syrup line, injection line, ointment line, extraction & concentration turnkey equipments.

Critical Operating Parameters for Side Spray | Tablet & Sterilization Machines - Pharmaceutical Manufacturing Equipment | Yenchen

Fluid Bed Dryer / Granulator / Coater | Yenchen Machinery Co., Ltd. has been specializing in manufacturing Pharmaceutical Machine for 60 years.

Fluid Bed Dryer / Granulator / Coater

Critical Operating Parameters for Side Spray

Source : Yenchen Technical Process Consultant, Dr. Fred Rowley

Critical Operating Parameters


  • Bowl Loading: Proper Use of Total Capacity
    - 40-80% of total capacity
    - As with blenders, granulators and coating pans, proper batch size is important for reproducible results.
    - With this unit, the proper batch size is determined using the initial weight (volume) and final weight (volume).
  • Product Characteristics
  • Coating material preparation and holding practices
  • Total amount of liquid
  • CFM Air velocity
    - Type of fluidization
  • Air temperature
  • Spray rate
  • Gun type used: Relative position of the tip
  • Atomizing pressure
  • Disc type
  • Disc height
    - Expressed in mm.
    - Also called "Slit Height".
    - Allows process air into the rotary granulator.
    - Height of the disc will change as the pellets get bigger.
    - Some machines do not have this feature.
  • Disc speed
    - Unit of measure is rpm.
    - Usually constant.
    - With large weight gains the speed may increase as the pellets increase in size.
  • Pellet Curing



If you have any technical questions, please contact with Grace Chiang Email:grace.chiang@yenchen.com.tw
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Critical Operating Parameters for Side Spray | Tablet & Sterilization Machines - Pharmaceutical Manufacturing Equipment | Yenchen

Located in Taiwan since 1967, YENCHEN MACHINERY CO., LTD. has been a pharmaceutical manufacturing equipment supplier in pharmaceutical industry. Their main manufacturing and processing equipment include, hot air sterilizers, extrusion machines, tablet coating and compression machines, pellet making machines and oral solid dosage manufacturing equipment, which are sold to over 70 countries meeting international standards.

Yenchen was established in 1967, our products and services are widely used in the pharmaceutical, food, biotechnology, chemical, and cosmetic fields, which include solid dosage line, pellet machine production line, syrup line, injection line, ointment line, extraction & concentration turnkey equipments.

Yenchen has been offering customers high-quality pharmaceutical manufacturing equipment since 1967, both with advanced technology and 57 years of experience, Yenchen ensures each customer's demands are met.