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

FAQs | Spray Gun Geometry & Calibration | 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.

Spray Gun Geometry & Calibration | Tablet & Sterilization Machines - Pharmaceutical Manufacturing Equipment | Yenchen

Coating Machine, Spray Gun | Yenchen Machinery Co., Ltd. has been specializing in manufacturing Pharmaceutical Machine for 60 years.

Coating Machine, Spray Gun

Spray Gun Geometry & Calibration

Source : Yenchen Technical Process Consultant, Dr. Fred Rowley

Gun geometry is a collective term for 5 different aspects of arranging the various guns inside the pan.

1. Gun to bed
2. Gun to Gun
3. Gun to side of pan
4. Cocked guns
5. Position of the guns in relation to the tablet bed.

There are two things to consider, the number of guns in the pan and where we aim them once we have them set up correctly. For a single gun, we place it dead center of the boom and place the boom a specific distance to the tablet bed. For multiple guns we have the additional dimensional checks of distance between guns and between the first and last guns on the boom to the sides of the pan. We also need to be sure we do not alter the gun geometry as we install and remove the guns.

Our goal is to have a completely clean coating pan when we finish with multiple coating runs. Any adhension of material on the side of the pan, on the back of the pan or on the door is unacceptable.

Gun Calibration is Important

It is important to calibrate the spray guns so that each one sprays the same quantity of suspension in any unit time. But in most cases due to variation of suspension, damaged nozzle tips, bent needles and variation in pump speed this cannot always be exact.

1. Variance in solution rates between guns in common.

2. Variance of not more than +/- 10% between guns is acceptable for COLOR coating.


If you have any technical questions, please contact with Grace Chiang Email:grace.chiang@yenchen.com.tw
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Spray Gun Geometry & Calibration | 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.