Cap sealing machine

Types of cap sealing machines

Cap sealing machines have several types based on their application and operation.

• Inner sealers

  An inner cap sealer machine is under the cap itself. This machine applies pressure to the cap to secure the container and the product. The inner seals may be made of various materials, including foam, PVC, and others, and they are designed to provide a secure seal while also allowing for easy cap removal.

• Manual capping machines

  A manual bottle cap sealing machine requires an operator to manually place and secure the cap on the bottle. Manual capping is common for small-scale production or bottling at home. Operators may use their hands or other tools to press down and secure the cap. Unlike other types of sealing machines, manual capping machines will not seal the cap to create airtightness.

• Trigger spray cap sealers

  Spray Trigger Cap Sealers are sealing machines applied to trigger spray bottle caps. They help preserve the contents of the bottle, control product dispensing, and prevent leakage or contamination before purchase. These Cap Sealers may be made of shrink bands, breakable or non-breakable tamper-evident caps, or other sealing mechanisms. Using a Shrink Cap Sealers is common for bottles that require trigger spray caps, such as cleaning products, fragrances, and personal care items.

• Automatic capping machines

  An automatic capping machine (or automatic bottle capper) is a device used to seal containers with caps without manual intervention. These machines are typically used in high-production facilities to efficiently and consistently apply caps to bottles at high speeds. An automatic machine may use different capping methods (snap, torque, etc.) and feature varied capping head designs depending on the bottleneck and cap shape.

• Outer cap sealers

  Outer cap sealers, or outside sealers, are sealers applied around the outside of the neck of a bottle, under or around the cap. Outer sealers provide a visual indication of tampering and help keep the cap attached to the bottle, even in high tipping incidents.

  Tamper-evident caps are common outer sealers, which require the customer to break the cap before accessing the product.

  Heat shrink sleeves are plastic sleeves placed over the cap that, when heated, contract to form a seal around the cap. Heat shrink sleeves are commonly used on containers with multiple caps.

• Induction cap sealers

  An induction cap sealer is a device used to apply an induction seal to the threaded cap of a container. Induction seals provide tamper evidence and help make a waterproof container/view. This type of cap sealer machine uses electromagnetic induction to create heat that melts the plastic lining of the cap, bonding it to the container.

• Laboratory cap sealing machines

  A laboratory cap sealing machine is a machine used to seal caps on laboratory bottles or containers. These containers are often used in scientific research, chemical storage, medical testing, or other laboratory applications. Cap sealing helps ensure that the cap is securely positioned and that the contents of the bottle are protected from contamination, evaporation, or chemical reactions. There are various types of cap sealings for the laboratory, including snap cap sealings, crimp cap sealings, and screw cap sealings.

Specification and maintenance of cap sealing machines

Specifications

• Cap Diameter and Height Range: The cap sealing machine can work with caps of specific diameter and height range in a defined sealing speed.
• Power Supply: For an Electric Cap Sealing Machine, the power supply is around 1 to 2 kW, usually single-phase (220V, 50Hz). The machine can have an emergency power off switch for safety in case of electric surprises.
• Material: A machine's body and sealing head are mostly made of stainless steel for durability, resistance to corrosion, and cleaning. Other parts made of materials like rubber, felt, foam, or silicone for gaskets, sealing rings, etc., require regular maintenance, usual replacement, and clean.
• Weight: The machine should not be extremely heavy. A portable machine makes it easier to carry around and reposition, compact to store. Its weight should generally be between 10 kg and 30 kg.
• Accuracy: A labelling machine will cap bottles accurately within ±1 mm, which is pretty good.
• Capacity: The sealing capacity of a cap sealing machine expresses in terms of the number of seals made per minute or hour. It can be anything from 300 per hour to 30,000 seals per hour, provided the sealing speed is quick, and other conditions are favourable. The capacity depends on the machine type, design, power, speed, number of operators involved, etc.
• Sealing Pressure: A cap sealing machine exerts sealing pressure in the range of 5 to 10 kgs. It may differ according to the bottle size and design, sealing material, type of cap, humidity, temperature, etc.

Maintenance

• Cleaning: To keep a bottle sealing machine well maintained, it's necessary to clean it well, removing product residue from parts that need cleaning, such as sealing heads, sealing jaws, conveyor belts, and more. If the residues aren't removed, they might accumulate over time and affect the machine's functionality and performance, shortening its lifespan, among other disastrous things.
• Inspect and check for defects: Daily inspection helps identify parts that need to be repaired or replaced quickly before they break or completely malfunction, avoiding downtime and ensuring production efficiency. A helper can check the part that has the cap when supervising the work. Checking this part will identify bottle parts that need cleaning and help prevent accidents and injuries.
• Lubrication: To keep the capper machine running smoothly and thus reduce operating costs, maintenance requirements and the risk of accidents and injuries to protect workers.

Application Scenarios

A cap sealing machine is widely used in various industries for sealing bottles and jars. In the food and beverage industry, these machines are used to seal sauces, jam, juice, milk, beer, and other products, ensuring freshness and preventing contamination. Pharmaceutical companies use cap sealing machines to seal medicine bottles, ensuring drug integrity and safety. In the cosmetics industry, these machines are employed to seal cosmetic bottles, such as lotions, creams, and perfumes, to prevent leakage and maintain product quality.

Cap sealing machines are also widely used in the chemical industry for sealing bottles and jars containing chemicals, such as cleaners and paints. In the automotive industry, these machines can seal oil bottles and other automotive fluid containers. Furthermore, cap sealing machines are applicable in assembly lines for manual or automatic bottling, which requires sealing caps. They are also used in warehouses and distribution centers for cap inspection and re-sealing services.

Overall, cap sealing machines play a crucial role in various industries, ensuring product quality, safety, and convenience for consumers and producers.

How to choose the cap sealing machine

When selecting a bottle cap sealing machine, several key factors need to be considered:

• Sealing types

  Various bottle cap sealing machines are available for different sealing requirements. For example, an induction cap sealer machine is used to provide plastic-lined bottle seals for products requiring tamper-proof seals. Another example is the pour spout capper which seals flip-top pour spout caps. Choosing the correct sealing machine type will ensure that the product is sealed properly.

• Production rate

  Consider the production rate the sealing machine can achieve. This should depend on the number of sealed bottles required per hour to meet production demands. Choose a machine that provides the necessary production capacity to avoid bottlenecks in the production line.

• Cap type compatibility

  Ensure the sealing machine is compatible with the specific type of cap being used. Test the machine to ensure it accurately fits and seals the cap without any issues before purchasing it.

• Ease of operation and setup

  Consider a machine that is easy to use and set up, as this will help reduce downtime during production. Choose an induction cap sealer that has quick-change cap setups and minimal operational requirements.

• Durability and maintenance requirements

  When choosing a bottle-sealing machine, consider the long-term costs of maintenance and repair. A durable and high-quality machine will have low maintenance requirements, which can help reduce overall production costs.

Cap sealing machine FAQ

Q1: What are the benefits of using a cap sealing machine?

A1: Cap sealing machines provide several benefits. They enhance product security by providing a tamper-evident seal, keeping users safe. They also improve shelf life by preventing cap leakage, thus increasing sales. Furthermore, the machines ensure consistent sealing, raising a company's sealing standard.

Q2: What types of seals can cap sealing machines produce?

A2: Depending on the type of cap sealing machine used, various types of seals can be made. These include linerless seals, pressure-sensitive tape seals, adhesive gummed paper tape seals, and plain or printed tamper-evident abstract seals.

Q3: Can cap sealing machines be integrated into existing production lines?

A3: Sealing machines are usually fitted into production lines. Depending on the configuration of the present manufacturing line, the capacity of the machine, and the kinds of caps used, sealing machines of different types may be integrated. To accomplish a smooth production process, it is important to examine the compatibility with the current machines.

Q4: How do cap sealing machines handle different cap materials?

A4: Machines are designed to accommodate various cap materials, including plastic, metal, and biodegradable materials. They include interchangeable capping heads and chucks that can adjust to different cap shapes and sizes. The machines employ adjustable torque settings to apply the right sealing force without damaging the caps.