Walnut Packaging Machine - Price and Purchase

Walnuts are a nutritious and beneficial food that plays a significant role in human health. Due to their high concentration of minerals and fatty acids, they can spoil easily under unsuitable and prolonged conditions. This essential and nutritious product not only needs to be grown and harvested under appropriate climatic conditions but also must be picked and packaged at the right time to ensure optimal consumption. Exposure to intense sunlight or high temperatures can cause the walnut kernels to turn brown and reduce their shelf life. Another factor that diminishes the quality of walnut kernels is exposure to a humid environment and oxidation. Humidity can create unpleasant tastes and odors in walnuts and dull their color. Proper and standard packaging of walnuts helps prevent oxygen from entering the packaging, significantly mitigating these issues. Therefore, attention to packaging is of great importance. One critical factor in walnut packaging is preventing oxidation and controlling temperature to extend shelf life. Packen Company is one of the factories specializing in the production of packaging machines and equipment for food products, including various types of dry foods packaging machines. In this article, we will specifically discuss the considerations and challenges of walnut packaging and the different methods used for packaging them.   Walnut packaging machines are available in various types, including automatic, semi-automatic tray sealer machines, vacuum chamber machines, thermoforming machines, and tabletop manual models, all equipped with Modified Atmosphere Packaging (MAP) technology except than tabletop manual model.  

Storing Walnuts Using Modified Atmosphere Packaging (MAP)

Modified Atmosphere Packaging (MAP) is a method used for storing walnuts that involves altering the atmosphere within the packaged tray to reduce the oxygen levels and slow down the natural aging process of the nuts. MAP can be an effective way to address the challenges associated with walnut storage, including issues related to exposure to light, insect infestation, mold, and oxidation.  

Preserving Color

MAP (Modified Atmosphere Packaging) can reduce the darkening of walnut shells by decreasing the oxygen concentration inside the packaging. This helps maintain the bright color of the walnuts and provides a longer shelf life.  

Preventing Pests

The low oxygen levels also help reduce the risk of pest infestations, such as the navel orange worm and other insects.  

Slowing and Preventing Mold Growth

Additionally, MAP can minimize the risk of mold growth, which can cause unpleasant odors and the production of mycotoxins like aflatoxins. Oxygen levels can be kept low for months to help prevent these issues.  

Preserving Quality

Auto-oxidation can lead to the degradation of unsaturated fats in walnuts, resulting in rancid odors and darkening of the nuts. MAP (Modified Atmosphere Packaging) helps reduce the rate of auto-oxidation by limiting the amount of oxygen available, thereby preserving the quality of the walnuts.  

Reducing Biological Activity

Finally, MAP can decrease the biological activity of walnuts by slowing down their respiration rate, which helps to reduce moisture levels and associated odors. By maintaining a controlled atmosphere with low oxygen levels, MAP can keep walnuts fresh and lower the risk of spoilage.  

Other Benefits of Modified Atmosphere Packaging (MAP)

MAP not only benefits your walnuts but also provides advantages for your business and the environment:   Reduction in Food Waste and Cost Savings: MAP can help reduce food waste by extending the shelf life of products, leading to cost savings. Increased Product Safety: By controlling the gas composition within the package, MAP helps reduce the growth of pathogens and spoilage organisms, enhancing product safety. Improved Product Presentation: MAP contributes to better product appearance by preventing color changes, preserving texture, and maintaining flavor. No Need for Chemical Preservatives: MAP allows for the storage of food products without chemical preservatives, which is better for both consumers and the environment. Enhanced Supply Chain Control: MAP provides better control over the supply chain as products can be properly packaged and sealed, reducing the risk of contamination during transport or storage.  

Different Types of Walnut Packaging Machines

Packen is a knowledge-based company specializing in the field of designing and manufacturing of various tray sealer packaging machines equipped with Modified Atmosphere Packaging (MAP) technology. The company's packaging machines suitable for walnut packaging include:  

• Automatic Tray Sealer Machine
• Semi-Automatic Tray Sealer Machine
• Tabletop Manual Sealing Machine
• Vacuum Chamber Machine
• Thermoforming Machine

 

Automatic Tray Sealer Packaging Machine

One of the machines manufactured by Packen for walnut packaging is the automatic tray sealer packaging machine. This machine packages walnuts automatically with high speed and accuracy.  

• Initially, trays are placed on the conveyor either by the machine or by an operator.
• Next, the filling machine fills the trays.
• The filled trays are then directed into the machine for vacuuming.
• After the vacuuming stage, the trays exit the machine and are conveyed to the labeler and jet printer via a conveyor. Finally, the packaged trays are gathered on a traffic table.

Auxiliary equipment used in the production line for this machine includes:

• Automatic denester
• Weight Control Systems (check weigher)
• Metal Detector
• Row Converting Machine (Single to Multi-row and Vice Versa)
• Fillers
• Automatic Rower
• Automatic Lidder
• Traffic Table

 

Features of the Automatic Tray Sealer Packaging Machine

• The machine can be easily set up and adjusted by the operator.
• The machine can be configured to accommodate different tray sizes.
• Various options are available to meet specific customer needs.
• Modified Atmosphere Packaging (MAP)

Semi-Automatic Tray Sealer Packaging Machine

  Other machine used for walnut packaging is the semi-automatic tray sealer packaging machine.  

• This machine functions similarly to the automatic tray sealer, with the main difference being that some tasks are performed manually by the operator.
• It is suited for lower production capacities but offers higher packaging speeds for smaller trays compared to the automatic model.
• During packaging, after the trays are filled, the operator rotates the machine table 180 degrees and then initiates the packaging process.

Features of the Semi-Automatic Tray Sealer Packaging Machine

• Ideal for packaging at lower and medium production capacities.
• Small Space Requirement.
• Cost-Effective and User-Friendly
• Various options are available to meet specific customer needs.

Vacuum Chamber Packaging Machine Another machine used for walnut packaging is the vacuum chamber packaging machine.

• The operator first fills the bag or pouch with walnuts.
• The filled bags or pouch are then placed inside the machine, where the packaging (vacuuming and if customer requested gas injection) process is carried out.
• Finally, the operator manually removes the sealed bags or pouches from the machine, completing the packaging process.

Tabletop Manual Sealing Machine

The tabletop sealing machine is used for packaging walnuts in lower capacities.

• The filled trays are placed into the mold by the operator. The film is manually placed over the tray, and the operator then presses the machine's lever down to complete the sealing process.
• The machine is straightforward to set up and adjust by the operator, making it very simple to use.

Thermoforming Packaging Machine   Another machine manufactured by Packen for walnut packaging is the thermoforming packaging machine. This machine can package products inside plastic trays, with the key difference being that it forms the trays itself. The packaging process of this machine is as follows:  

• Film Formation: Initially, film is loaded into the machine and then formed into trays using molds.
• The fillers then start to fill the trays, after filling, vacuum and gas injection are performed.
• The film is then sealed onto the tray.
• The trays are cut and removed from the machine.
• The trays are subsequently directed to the labeller and jet printer, completing the packaging process.

  Some other types of dry foods packaged by the tray sealer machines of this company include:

• Dried fruits such as dates, barberries, sour cherries, grapes, figs
• Dried nuts, such as seeds, sesame, peanuts, etc.
• Dried herbs, such as green tea, black tea, mint, saffron
• Legumes, such as beans, lentils, chickpeas, black beans
• Grains, such as rice, barley, wheat, corn, etc.

  This list is just examples of dried goods, and each country may offer various types of dried products that are suitable for packaging.   Choosing the Best Walnut Packaging Machine   Each packaging machine has its own specific features and applications. Therefore, to select the right machine, you should first conduct the necessary research and then proceed. Before choosing a walnut packaging machine, consider the following points:

• We recommend always seeking out experienced and reliable manufacturers.
• Obtain sufficient information about production capacity, product weight, the machine’s filling capability, the type of trays and bags used, etc. Then, order the machine based on your production capacity.

• Know the specifications of the storage environment and operation of the machinery