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A Practical Guide to Most Common Packaging Knives for Dairy Industry
By admin
Reading time 10 minutes
7 March 2023
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When it comes to packaging dairy products, the right tools can make all the difference. Machine knives for dairy packaging are an essential component, ensuring that products are safely and effectively packaged for distribution. These knives come in a variety of shapes, sizes, and materials, each with its own unique set of benefits and drawbacks. In this article, the team at MRMK discusses some of the most common machine knives used in the dairy packaging industry.

Importance of Using the Right Packaging Knives in the Dairy

Using the right machine knives for dairy packaging is critical to ensuring the quality and safety of dairy products. Inefficient or poorly designed knives can cause damage to the product or packaging, leading to waste and potential contamination. In addition, improper packaging can compromise product freshness and flavour, leading to customer dissatisfaction and lost profits.

Types of Machine Knives for Dairy Packaging

There are several types of machine knives commonly used in the dairy industry for packing. The most common are:

Circular knives

Circular knives are a type of machine knife that have a circular shape and a sharp edge. They are commonly used in the dairy packaging industry to cut various materials such as plastic films, foil, and paper. In cheese packaging, circular knives are used to cut the plastic films or foils that wrap around the cheese, as well as to cut the paper labels or tags that are affixed to the cheese.
Circular knives come in different sizes and styles, depending on the type of material that needs to be cut and the thickness of the material. They are typically made from high-quality steel or other durable materials that can withstand the wear and tear of continuous use. The blades can be sharpened or replaced as needed to ensure optimal cutting performance.

Thermoforming knives

Thermoforming knives are an essential tool used in the dairy packaging industry for producing a wide range of dairy packaging products, such as cups, containers, and trays. Thermoforming is a manufacturing process in which a plastic sheet is heated and then shaped by a mold to create a specific product design.

Thermoforming knives are used to cut and shape the plastic sheets during the thermoforming process. These knives are typically made of high-quality steel and are designed to withstand the high temperatures involved in the thermoforming process.

The use of thermoforming knives in the dairy packaging industry offers many benefits, including increased efficiency, accuracy, and consistency in the manufacturing process. By using these knives, manufacturers can produce high-quality dairy packaging products with minimal waste and downtime.

Flowrapper knives

Flowrapper knives are an essential tool used in the dairy packaging industry for the manufacturing of various dairy products such as cheese, yogurt, milk, and butter. These knives are used in the flowrapping process, which involves wrapping the dairy products in airtight packaging materials for preservation and transportation.

They are designed to cut the packaging material to the correct size and shape needed for wrapping the dairy product. These knives are used in a variety of applications, such as cutting and shaping plastic films, laminates, and foils.

The use of flowrapper knives in the dairy packaging industry offers many benefits, including increased efficiency, accuracy, and consistency in the manufacturing process.

Straight knives

Straight knives are a type of machine knife that have a straight edge and are used for cutting a variety of materials, including plastic films, cardboard, and paper. They are commonly used in the dairy packaging industry for cutting materials that are used to package products like milk cartons, yogurt cups, and other dairy products.

Straight knives can be made from a variety of materials, including high-speed steel, tungsten carbide, and ceramic. The blades can be sharpened or replaced as needed to ensure optimal cutting performance. In dairy packaging, straight knives are typically used to cut the plastic films or cardboard cartons that hold the dairy products.

Guillotine knives

Guillotine knives are a type of machine knife that is designed for heavy-duty cutting applications. They are commonly used in the dairy packaging industry for cutting through thick materials such as cheese blocks, as well as for cutting large sheets of plastic films and other packaging materials. The knives are designed with a long, straight blade that is operated by a lever or hydraulic mechanism, providing a lot of force for cutting through tough materials.

In dairy packaging, guillotine knives are an essential tool for cutting large blocks of cheese into smaller portions that are then packaged for sale. The knives can be made from a variety of materials, including high-speed steel and tungsten carbide, and they can be sharpened or replaced as needed to ensure optimal cutting performance. Guillotine knives can also be used to cut other materials, such as foam, rubber, and plastics, and are found in various industries beyond dairy packaging.

Serrated knives

Serrated knives are a type of machine knife that has a serrated edge instead of a straight edge. They are commonly used in the dairy packaging industry for cutting through materials that are difficult to cut with a straight edge, such as certain types of plastic films and cheese. The serrations on the blade provide a saw-like cutting action, which makes it easier to cut through tough or fibrous materials.

In dairy packaging, serrated knives are often used for cutting through plastic films that are used to wrap cheese or other dairy products. The serrations on the blade allow the knife to grip and tear the film more easily, which can help prevent the product from being damaged during the cutting process. Serrated knives can also be used for cutting through other materials, such as bread or meat, in food preparation.

Slitting knives

Slitting knives are a type of machine knife that is designed for cutting narrow strips of material, such as plastic films used in dairy packaging. The knives have a long, straight blade with a sharp edge that is designed to make clean, precise cuts. The blade is typically mounted on a machine that is designed to feed the material through the knife, allowing for efficient and accurate cutting.

In dairy packaging, slitting knives are often used for cutting plastic films that are used to wrap dairy products, such as cheese or butter. The knives can be customised to accommodate different film widths and thicknesses, and they can be made from a variety of materials, including high-speed steel and tungsten carbide.

Perforating knives

Perforating knives are a type of machine knife that is designed to create small holes or perforations in materials, such as plastic film or paper. The perforations make it easier to tear the material along a straight line, which can be useful for various applications, including packaging.

In the dairy industry, perforating knives are often used for creating perforations in plastic films that are used to wrap dairy products, such as cream cheese tubs or butter wrappers. The perforations make it easier for consumers to open the packaging and access the product inside.

Perforating knives can be customised to accommodate different perforation patterns and sizes, and they can be made from various materials, including high-speed steel and tungsten carbide. The knives are typically mounted on a machine that is designed to feed the material through the knife, allowing for efficient and accurate perforating.

Razor blades

Razor blades are a type of machine knife that is designed for making precise cuts on delicate materials, such as plastic films or paper. They have a very sharp edge that can cut through thin and fragile materials with ease. In the dairy industry, razor blades are often used for cutting plastic films that are used to wrap dairy products, such as cheese or yogurt cups.

Razor blades can be made from various materials, including carbon steel, stainless steel, and tungsten carbide. The blades are typically mounted on a machine that is designed to feed the material through the blade, allowing for efficient and accurate cutting.

Band knives

Band knives are a type of machine knife that is used for cutting through large sheets of material, such as foam or rubber. They consist of a long, narrow band of steel that is mounted on a machine and fed through the material to be cut. The MRMK Bandsaw blades are the perfect knife to use for dairy packaging as they are durable and compatible with any machine.

In the dairy industry, band knives are often used for cutting foam or rubber sheets that are used in dairy packaging for insulation. The insulation helps to keep dairy products at a consistent temperature, ensuring their quality and freshness.

Band knives are available in different widths and thicknesses to accommodate different cutting needs, and they can be customised for specific applications. The knives are typically made from high-speed steel or tungsten carbide, which are durable materials that can withstand the demands of cutting through thick materials.

Band knives require regular maintenance and sharpening to ensure optimal cutting performance, and they should be handled with care to avoid injury.

Dished knives

Dished knives are a type of machine knife that is designed for cutting through tough or fibrous materials, such as cheese or yogurt products. They have a concave, or dished, shape that allows for more efficient cutting, especially when slicing through dense materials.

In the dairy industry, dished knives are commonly used for cutting cheese products into blocks or wedges before packaging. Dished knives are typically made from high-carbon stainless steel, which is a durable and corrosion-resistant material that can withstand the demands of cutting through tough materials. The knives can be customised for specific applications, and they require regular sharpening and maintenance to ensure optimal cutting performance.

Factors to Consider When Choosing Machine Knives for Dairy Packaging

When choosing machine knives for dairy packaging, there are several factors to consider:

Product Type

Different dairy products require different types of knives. For example, soft cheeses may require a straight knife, while hard cheeses may require a serrated knife.

Packaging Material

The type of packaging material used can also impact the type of knife needed. For example, thin plastic packaging may require a serrated knife to prevent tearing.

Cutting precision

Determine the level of precision required for the cut and choose a machine knife that can achieve that level of precision.

Machine Compatibility

Ensure that the machine knife is compatible with the cutting machine being used in the dairy packaging process. The MRMK dairy packaging knives are compatible with the most trusted brands in the dairy packaging industry including Multivac, Sealpack, Mondini and many others. You can speak to our team to guide you on the best knives to use for your packaging processes.

Maintenance requirements

Consider the maintenance requirements of the machine knife and choose one that is easy to maintain and sharpen.

Safety

Choose a machine knife that is safe to use and minimises the risk of accidents in the dairy packaging process.

Production volume

The volume of product being produced can also impact the type of knife needed. Larger production volumes may require higher-quality, more durable knives.

Cost

Cost is also an important factor to consider. While high-quality knives may be more expensive, they can also provide better performance and durability over time.

Longevity

Choose a machine knife that is durable and has a long lifespan to minimize replacement costs and downtime in the dairy packaging process.

Future developments of Machine Knives for Dairy Packaging

As technology continues to evolve, so too are machine knives for dairy packaging. This progression in the dairy industry includes:

Automation

Automation is expected to play a larger role in dairy packaging, with more machines being designed to perform tasks traditionally done by hand.

Sustainability

Sustainability is becoming an increasingly important consideration in the dairy industry, and machine knives are no exception. Knives made from sustainable materials or designed for longer lifespans may become more popular.

Customisation

As demand for more unique or personalised dairy products grows, there may be a greater need for customised machine knives designed for specific product types or packaging materials.

Conclusion

Machine knives for dairy packaging are an essential component of the packaging process. Choosing the right knives for your product type, packaging material, and production volume can help ensure the quality and safety of your products, while also maximising productivity and minimising waste. By properly maintaining and sharpening your knives, you can extend their lifespan and ensure they continue to perform at their best. As technology and trends continue to evolve, keeping up with the latest developments in machine knives for dairy packaging can help you stay ahead of the competition and provide the best possible products to your customers.

Choose MRMK for longer-lasting dairy packaging knives

At MRMK, we prioritise quality and service to provide optimal performance and productivity for our customers in the dairy industry. We are dedicated to being a one-stop shop for all their dairy packaging machine knife needs. Our wide range of high-quality machine knives for dairy packaging, coupled with expert maintenance and sharpening services, ensures our customers have access to the best services on the market. Whether it is new knives or maintenance for existing ones, we are committed to providing prompt and reliable service to meet our customers’ requirements.

Our resharpening and refurbishing services bring worn-out knives back to life, saving our customers money on replacements. Our experienced technicians use the latest techniques and technology to ensure our customers’ knives are always performing at their best. Our commitment to delivering superior quality and value to our customers makes us their trusted partner for all their machine knife needs.

With MRMK, customers can stay ahead of the competition in the dairy industry and meet demand efficiently. Contact us today to find out how we can help you deliver the best results.

Explore MRMK’s range of machine blades for the dairy industry now

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