How can the food packaging machinery industry achieve a performance leap through customized CNC processing?

In the current era of rapid iteration in the global food industry, the efficiency and precision of food packaging machinery are the key to seizing the food market. Customized CNC machining technology is providing brand-new solutions for the upgrading of the industry.

Food packaging and sorting industrial equipment

Different foods (such as liquid beverages, puffed foods, and fresh meats) have different requirements for packaging sealing and packaging forms. Standard components are difficult to meet complex demands. Customized CNC processing can manufacture molds, transmission components, etc. that conform to specific packaging processes based on the characteristics of food, such as customized forming molds designed for irregular-shaped packaging.

Food packaging has extremely high requirements for equipment precision. An error of 0.1mm May lead to poor packaging sealing and affect the shelf life of food. CNC machining, through computer digital control, can maintain the dimensional accuracy of components at the micrometer level, ensuring the long-term stable operation of machinery.

Transmission gears: Customized CNC processing can design gears with special tooth profiles and modules according to the power transmission requirements of the equipment, reducing operating noise and wear. For example, high-strength gears customized for high-speed packaging lines can increase service life by 40%.

Packaging film forming molds: Through 3D modeling and CNC milling technology, molds with complex curved surfaces are manufactured to achieve personalized packaging forms (such as irregular-shaped packaging boxes and three-dimensional bags).

In the face of the frequent updates of food packaging styles in the market, CNC machining can quickly adjust production parameters and flexibly switch between OEM, small-batch customization and large-scale production. Simple parts can be sampled within 1 day, while complex parts can be sampled within 3 to 5 days, helping enterprises quickly seize market opportunities.

CNC machine tools for the production of metal parts

Give priority to choosing service providers equipped with five-axis linkage machining centers and high-precision inspection equipment (such as three-coordinate measuring machines) to ensure processing accuracy and the manufacturing capacity of complex structural components.

Service providers with experience in processing food packaging machinery parts can more accurately grasp the industry demands. For instance, Dahong CNC Machining has customized over 200 types of precision components for more than 10 overseas food packaging enterprises and has received unanimous praise from customers.

We offer one-stop services ranging from design optimization, CNC machining to surface treatment to shorten the delivery cycle and reduce the cost of enterprise connection.

Factory conveyor belt beef production line

In the field of food packaging machinery, the selection of materials for custom parts is directly related to the mechanical performance, food safety and the service life of the equipment. The following is a detailed introduction to the commonly used materials and their characteristics for you:

Stainless Steel: The "Main Force" of Food Machinery

Stainless steel is widely used in custom parts of food packaging machinery due to its excellent corrosion resistance, rust prevention and hygiene properties. When the chromium content in steel reaches over 12%, it can effectively resist corrosion from various media. Common 304 stainless steel is suitable for most conventional food packaging environments, with high cost-effectiveness and excellent comprehensive performance. 316 stainless steel, due to the addition of molybdenum, performs exceptionally well in resisting chloride corrosion and is suitable for mechanical parts that handle high-salt and high-acid foods, such as valves and pipes of sauce filling machines. It has good thermal stability, can withstand high-temperature sterilization and other processes, and has a smooth surface, making it difficult for microorganisms to adhere. It is easy to clean and maintain, and meets strict hygiene standards.

Aluminum Alloy: Preferred for lightweight and thermal conductivity

Aluminum alloy has the advantages of low density and light weight, which can effectively reduce the overall weight of equipment, lower energy consumption, and at the same time, it has good thermal conductivity, low-temperature performance and processing performance. In food packaging machinery, it is often used to manufacture components that are sensitive to weight and require good heat dissipation, such as heat sinks in baking food packaging machines and lightweight frames of conveying devices. It also has good corrosion resistance and can work stably in general food packaging environments. However, in strong acid and strong alkali environments, surface protection treatment is required. However, when aluminium alloy comes into contact with certain foods, it may affect the color and flavor of the food. Therefore, it should be avoided to be used in parts that come into direct contact with highly acidic or highly alkaline foods.

Copper and Copper Alloys: Thermal Conductivity and Specific application scenarios

Pure copper (red copper) has an extremely high thermal conductivity and is often used to manufacture components such as heat exchangers that require efficient heat transfer. Copper alloys have good strength, plasticity and certain corrosion resistance. However, copper has a destructive effect on some food components, such as promoting the oxidation of vitamin C and affecting the flavor of dairy products. Therefore, it is generally not used in machinery and equipment that come into direct contact with food materials. Instead, it is more commonly used in heat exchangers and air heaters in refrigeration systems that do not come into direct contact with food.

stainless steel tube

Plastics: A "Potential stock" with Diversified applications

Polyethylene (PE) : It includes high-density polyethylene (HDPE) and low-density polyethylene (LDPE). HDPE is strong and durable, resistant to chemical corrosion and has good moisture resistance. It is suitable for making cutting plates for food processing machinery, food storage containers, conveyor belts, etc. LDPE is soft in texture and is often used in food packaging films and linings.

Polypropylene (PP) : It features high-temperature resistance, chemical corrosion resistance and moisture-proof properties. It is widely used in the manufacturing of parts such as food containers, pipes, valves and pump bodies, and can operate stably in high-temperature environments, such as related components of hot drink packaging machinery.

Polycarbonate (PC) : Transparent and highly impact-resistant, it is often used to make observation Windows, protective covers, etc. for food processing machinery. It provides good visibility while ensuring equipment safety and can withstand certain external force impacts.

Ultra-high molecular weight polyethylene (UHMW-PE) : It features high impact strength, self-lubrication (no additional lubrication required), wear resistance, and chemical corrosion resistance. It can operate at high temperatures (up to 180°F) and is not affected by water, organic alcohols, ketones, or non-oxidizing acids. Conveyor belts, inspection tables, chutes and hoppers, which are commonly used in food manufacturing, can withstand frequent friction and material impact.

Polyoxymethylene (POM, also known as acetal resin) : It is an engineering thermoplastic approved by the FDA for use in food applications, featuring astonishing rigidity and excellent fatigue resistance, capable of withstanding long-term wear and tear. It is often used in high-wear parts of food packaging machinery, such as protective devices of chain conveyor belts, etc. Some food-grade POM also adds metal additives so that when parts are damaged and mixed into the product, they can be detected by metal detectors.

engineering plastics

Key material for sealing and buffering

Rubber, with its excellent elasticity, sealing property and shock absorption performance, plays an important role in food packaging machinery. It is used to manufacture sealing parts, such as sealing strips for packaging machines, to ensure the sealing property of packaging and prevent food leakage and contamination. It is also used as a shock-absorbing pad to reduce the vibration and noise during mechanical operation, such as at the base of the equipment and the connection points of the motor, thereby enhancing the stability and operational comfort of the equipment. The rubber used in food machinery must comply with food safety standards and possess properties such as being non-toxic, odorless, resistant to aging and chemical corrosion, to ensure the safety and quality of food.

The food packaging machinery industry is at a critical stage of technological innovation. Customized CNC processing, with its characteristics of high precision and high flexibility, has become the inevitable way for enterprises to enhance their competitiveness. If your food packaging machinery enterprise is also seeking breakthroughs in equipment performance, please feel free to contact Dahong CNC Processing. We will provide professional technology and services to help your equipment achieve a qualitative leap!