Peristaltic metering and filling pump
Working principle: Based on the peristaltic principle, through the interaction between the spoke teeth and the hose in the peristaltic pump head, the hose inside the pump head is squeezed and released. When the hose is squeezed, a change in volume occurs, which enables the liquid to be sucked in and discharged, thus achieving precise metering and filling.
Advantages: It has high precision and can accurately control the flow rate and pressure of the liquid. It can be used for filling liquids with both high and low viscosities, avoiding data errors of traditional filling machines. It has a simple structure, and there is no part of the pump body that contacts the liquid medicine, so there is no need to clean and disinfect the pump body. It has a wide range of adaptability and is suitable for various industries such as chemical, food, and pharmaceutical industries.
Disadvantages: The hose is a vulnerable part and needs to be replaced regularly, which increases the operating cost and maintenance workload.
Applicable scenarios: It is suitable for occasions where high filling precision is required, the viscosity range of materials is wide, materials need to be frequently replaced, and high hygiene requirements are imposed, such as the filling of small-dose liquid medicine in the pharmaceutical industry and the filling of sauces and beverages in the food industry.
Ceramic metering and filling pump
Working principle: Liquids are transferred through the precise movement of the plunger to achieve precise metering. Driven by the motor, the plunger makes precise reciprocating movements to change the volume of the pump chamber, thus sucking in and discharging the liquid.
Advantages: It has high precision, and the metering precision error can be controlled within ±5‰, which can ensure the accuracy of the filling volume. Ceramic materials have excellent structural and chemical stability, which can minimize the pollution risk caused by contact with liquid medicine and is suitable for the pharmaceutical industry with high requirements for aseptic filling.
Disadvantages: The processing of ceramic components is difficult, the cost is relatively high, and the requirements for use and maintenance are also relatively high. If operated improperly, ceramic components are easily damaged.
Applicable scenarios: It is mainly used for aseptic liquid filling in the pharmaceutical industry, such as high-precision metering and filling occasions for vaccines, injections, etc.
Magnetic metering and filling pump
Working principle: A high-precision miniature magnetic pump is adopted, and the filling volume is determined by the pump rotation speed and working time.
Advantages: The pump head is made of 316L, which is resistant to acids, alkalis, and corrosion, and is suitable for filling various corrosive liquids. The discharge nozzle can be lengthened, and the hose can be moved freely for filling, which can meet the requirements of different filling volumes. The filling volume range is wide, adjustable from 5ml to 2000ml or even a wider range, and is not limited by the filling volume.
Disadvantages: It has certain requirements for the working environment. For example, magnetic field interference may affect its performance, and the price is relatively high.
Applicable scenarios: It is often used for filling liquids such as oils, detergents, acid-base solutions, and highly corrosive solutions, and is widely used in industries such as chemical and daily chemical industries.
Flowmeter-type metering and filling pump
Working principle: Materials are pumped in and out by a gear pump or a plunger pump, and the required filling measurement is adjusted through a flowmeter and a PLC terminal control system.
Advantages: The filling range is adjustable and it is suitable for materials such as liquids with different viscosities, oils, and fluids, which can meet the filling requirements of various products. It is equipped with a frequency converter and has a two-speed filling function with a fast speed first and then a slow speed, which can prevent the overflow of materials. It is controlled by a PLC microcomputer, which is easy to operate and can be operated by a single person, saving labor.
Disadvantages: It relies highly on the accuracy and stability of the flowmeter. If the flowmeter fails, it may affect the metering accuracy, and the maintenance and calibration of the equipment require certain professional knowledge and skills.
Applicable scenarios: It is suitable for large packaging filling in industries such as food, daily chemicals, lubricating oils, condiments, and alcoholic beverages, such as the filling of edible oil, detergent, engine oil, soy sauce and other products.
