Mini piston air pump for vacuum package machine

What pumps can be used for food packaging machines?

Centrifugal pumps: A centrifugal pumps generates centrifugal force through the rotation of the impeller, which transports the liquid out. It has the characteristics of uniform flow and smooth operation, and is suitable for situations where continuous and stable liquid conveying is required in food packaging machines.

Screw pumps: Screw pump, also known as screw pump, is a positive displacement pump. It has good self-priming performance and can transport high viscosity liquid food containing particles. In food packaging machines, screw pumps are often used to transport viscous materials such as jam and syrup.

Diaphragm Pumps: A diaphragm pump is a volumetric pump that delivers liquid through flexible diaphragm vibration. Its biggest feature is that the liquid inside the pump body is isolated from the outside and will not leak, making it very suitable for occasions with high hygiene requirements in food packaging. For example, it can be used to transport liquid foods such as milk and juice.

Gear pumps: A gear pump is a pump composed of two gears that mesh with each other, and it compresses and delivers liquid through the rotation of the gears. It is suitable for conveying high viscosity food materials, such as chocolate syrup.

Pneumatic diaphragm pumps: Pneumatic diaphragm pump adopts pneumatic principle for transmission, and has the characteristics of stable working pressure and complete isolation between liquid and driving gas. This type of pump is particularly suitable for conveying food with extremely high hygiene requirements, such as dairy products and beverages.

Hydraulic ceramic plunger pumps: This pump can achieve precise measurement and transportation of packaging materials in the food packaging process, ensuring the quality and efficiency of packaging. It is commonly used in situations where fluid flow is precisely controlled, such as high-precision liquid food packaging.

Technical Specification

Comparison of advantages and disadvantages between centrifugal pumps and piston pumps

Centrifugal pumps and piston pumps have their unique application scenarios and advantages and disadvantages in food packaging machines and other industrial applications. Here is a detailed comparison between these two pumps:

Advantages of centrifugal pumps:

Large flow range: Centrifugal pumps can handle flow ranges from low to high, suitable for various scales of food packaging and industrial production.

Pressure stability: During normal operation, the centrifugal pump can provide stable and non fluctuating pressure and flow.

Simple structure: The structural design of the centrifugal pump is relatively simple, with fewer components, making it easy to install, maintain, and repair.

Low operating noise: Centrifugal pumps have relatively low operating noise and can operate in low noise environments.

Disadvantages of centrifugal pumps:

Preparation for start-up: Before starting the centrifugal pump, it is usually necessary to fill it with water or use a vacuum pump to extract the air inside the pump, which may increase the complexity of the operation.

Sensitivity to liquid viscosity: When the viscosity of the liquid increases, the flow rate, head, suction, and efficiency of the centrifugal pump will significantly decrease.

Not suitable for high pressure and low flow rate: The application of centrifugal pumps is limited to a certain extent in situations of low flow rate and high head.

Advantages of piston pumps:

Simple and reliable structure: The Piston Pump has a relatively simple structure without too many additional equipment, making installation and operation relatively easy, and has a long service life and high reliability.

High compression efficiency: Due to the principle of reciprocating motion, the compression efficiency of the piston pump is relatively high.

Wide application range: The Diaphragm Piston Pump is suitable for high-pressure and low flow situations, such as workpiece clamping, injection molding, etc.

Disadvantages of piston pumps:

Maintenance cost: The piston pump requires regular replacement of vulnerable parts such as piston rings and gaskets, resulting in relatively high maintenance costs.

Operation noise: Due to the reciprocating motion of the piston pump, its operation noise may be relatively high.

Energy consumption: Compared to centrifugal pumps, piston pumps may require more electricity consumption as their working principle involves more moving components.

Dimension Drawing

What are the types of piston pumps?

The types of piston pumps mainly include the following:

1. Hand cranked piston water pump: This is a simple and commonly used water pump that uses a handle to drive the piston to suction and discharge water.

2. Mini Piston Water Pump: This is a portable water pump that uses a handheld buckle to drive the piston to draw or discharge water.

3. Solar piston water pump: This is an environmentally friendly water pump that typically uses solar panels to drive the piston.

4. Single acting piston pump: This type of pump can only allow liquid to flow in through a one-way valve and cannot be extracted through the same pipeline, so only one side of the piston can work. This type of pump is suitable for situations where the load is stable and simple motion rules are required, such as the return oil of the excavator's stick.

5. Double acting piston pump: This pump can control the oil to work on both sides of the piston through a valve, achieving equal pressure. This type of pump is widely used in industries such as machinery, engineering, and metallurgy, such as the propulsion system of railway locomotives and the boom system of construction machinery.

DYX Mini Pumps And Solenoid Valves Application

Is the Vacuum Sealer Piston Pump used in food packaging machines a single acting piston pump or a double acting piston pump?

The Vacuum Piston Pump used in food packaging machines can be either a single acting piston pump or a double acting piston pump, depending on specific packaging requirements and application scenarios.

A single acting piston pump has only one one-way valve, which can deliver fluid in one direction. Its structure is simple and suitable for situations with stable loads and simple motion rules. The double acting piston pump is composed of two or more pistons and valves, which can achieve forward and reverse fluid transportation. It has the advantages of large flow rate, high conveying pressure, convenient steering, adjustable flow rate, energy conservation and environmental protection.

When choosing a piston pump, it is necessary to consider factors such as the properties of the food (such as viscosity, particle content, etc.), the performance requirements of the packaging machine (such as flow rate, pressure, etc.), as well as production costs and maintenance convenience. For applications that require precise measurement and transportation of viscous or semi-solid food, the high compression efficiency and wide applicability of piston pumps make them an ideal choice.