Service Support|Moon Pharmaceutical Equipment (Hangzhou) Co., Ltd

Common Problem

Q

Filling method

A

Our current filling methods are as follows: (1) Plunger pump (2) Time-pressure (3) Peristaltic pump (4) Flow meter (5) Diaphragm valve. Please select the filling method that best fits your product based on the application conditions and required filling accuracy. For more information, please refer to the document on filling-method applicability provided by our company.
Q

Filling dripping

A

In the filling process, dripping is a problem that often occurs. On the one hand, it affects the filling accuracy of our products, and on the other hand, it also affects our production environment. Under normal circumstances, when dripping occurs, we can handle it from the following aspects: (1) Adjust the suck-back in the formula. Note that bigger is not necessarily better. You can insert a transparent silicone tube onto the needle and observe whether the suck-back is about 3 mm. (2) Check whether the actual product characteristics include low density or high viscosity. For such products, a plunger pump cannot achieve suck-back adjustment, and a peristaltic pump must be used instead. This is because the sealing performance of a plunger pump is not as good as that of a peristaltic pump. (3) Check whether the slow-filling position is too high. If the liquid level of the slow-filling tank is much higher than the pump's inlet, there will be hydrostatic pressure at the needle position, causing dripping.
Q

Filling accuracy

A

Filling accuracy controls product quality during the production process. Different filling systems have varying levels of accuracy, so it is necessary to analyze whether our equipment can meet the actual product requirements. Several factors affect filling accuracy: (1) Dripping during filling. (2) The filling system, including the filling needle and hose, which can influence accuracy. It is important to select the appropriate silicone hose according to the filling volume. (3) Adjustment of the filling curve in the formulation. Typically, equipment is calibrated with water before leaving the factory. Since the properties of the actual product differ from water, the filling curve needs to be re-adjusted for the specific product.
Q

Other problems

A

If you have any further questions, please let us know in the feedback section. We will address them and get back to you as soon as possible.