The rotary pump filling machine is a device used for liquid filling. The following is a detailed introduction about it:
I. Working Principle
Core Component - Rotary Pump
The rotary pump mainly consists of a pair of rotors that rotate synchronously (such as gear rotors, cam rotors, etc.). These rotors rotate within the pump body and transport the liquid by periodically changing the volume of the pump chamber. When the rotors turn, the liquid is sucked into the pump chamber. As the rotors rotate, the liquid is carried to the outlet and then squeezed out under pressure, realizing the transportation of the liquid.
For example, in a gear rotor pump, two intermeshing gears rotate inside the pump casing. The liquid is brought in from the meshing area of the gears. As the gears rotate, the liquid is transported to the outlet in the space between the gears and the pump casing. This way can ensure the stable flow of the liquid and accurately control the flow rate.
Filling Process
Under the action of the rotary pump, the liquid is transported from the liquid storage tank to the filling head. The filling head is usually equipped with high-precision valves and flow control devices. When the container reaches the filling position, the valve of the filling head opens, and the liquid flows into the container under the pressure of the pump. By controlling the opening time of the valve or the rotational speed of the pump, the filling volume can be accurately controlled.
II. Characteristics
High-Precision Filling
The flow rate of the rotary pump can be accurately controlled, so it can achieve high-precision filling. It can fill products with different capacity requirements, and the filling error can be controlled within a relatively small range. For example, in the pharmaceutical filling industry, for the filling of small-dose pharmaceuticals, the rotary pump filling machine can ensure that the filling volume of each bottle of pharmaceutical meets the strict quality standards, with the error controllable within ±1%.
Wide Applicability
It can handle liquids with various viscosities. For low-viscosity liquids, such as beverages, eye drops, etc., it can fill them at an appropriate and stable speed; for high-viscosity liquids, such as honey, ketchup, etc., it can also perform excellent filling. This is because the working principle of the rotary pump enables it to overcome the viscous resistance of the liquid and ensure the normal transportation and filling of the liquid.
Good Hygienic Performance
Many components of the rotary pump filling machine are made of food-grade or pharmaceutical-grade materials, such as stainless steel 304 or 316L, etc. Moreover, its structural design is convenient for cleaning. For example, the pump body and pipelines can be disassembled for cleaning, and the filling head is also easy to clean. Specifically, it mainly depends on the actual situation and meets the hygienic requirements of food and pharmaceutical production.
High Stability
Since the working process of the rotary pump is relatively stable, it can maintain a stable flow rate and pressure during long-term filling operations. This is very important for large-scale production lines, which can reduce equipment failures and filling quality problems and improve production efficiency.
III. Application Industries
Food Industry
It is used to fill various food liquids, such as edible oils, fruit juices, jams, dairy products, etc. For example, in fruit juice filling, it can accurately fill the specified amount of fruit juice into the bottles and protect the quality of the fruit juice from being damaged, because its hygienic design can prevent the fruit juice from being contaminated.
Pharmaceutical Industry
It is crucial for the filling of various pharmaceutical solutions and pharmaceuticals. For the filling of pharmaceuticals such as injections and oral liquids, equipment with high precision and high hygienic standards is required, and the rotary pump filling machine just meets these requirements. It can ensure the accurate filling volume of pharmaceuticals and maintain the sterility of the filling process.
Daily Chemical Industry
It is used to fill products such as shampoos, bath gels, emulsions, etc. These products have a wide range of viscosities. The rotary pump filling machine can adapt to daily chemical products with different viscosities and can perform flexible filling according to the different requirements of product packaging.
Specifications Filling Capacity (g) Motor Power (kW) Plus or Minus Error (g) Diameter (mm) Length/Width/Height (cm) Weight (kg)
ZB-25 5 - 1,000,000 0.75 ≤4 grams 25 63x32x32 48
ZB-32 5 - 1,000,000 0.75 ≤4 grams 32 65x32x32 50
ZB-38 5 - 1,000,000 2 ≤4g 38 80x35x32 75
ZB-51 5 - 1,000,000 2.6 ≤4 grams 51 90x38x32 100
ZB-65 5 - 1,000,000 3.8 ≤4 grams 63 110x48x42 185
ZB-120 5 - 1,000,000 5.5 ≤4 grams 89 120x55x45 230
