An induction sealing head, or a sealing coil as it is also known, is a customisable component of your induction sealing system. It’s responsible for transferring electromagnetic energy into the foil liner, generating the heat required to create a secure, hermetic seal.
Because it directly affects sealing speed, reliability, and energy efficiency, the sealing head is arguably the most important part of the machine when it comes to achieving optimal performance.
That’s why Enercon offers the widest range of induction sealing heads available from any industry manufacturer. Our advanced designs enable machines to seal an extensive variety of cap sizes—from 15mm to 150mm in diameter—as well as unusual shapes and specialty closures that other induction sealers cannot.
Enercon’s technology also ensures consistent performance, whether sealing a single container or a full row of caps. This means you always get uniform, high-quality seals across your entire production line.
When you purchase an Enercon Super Seal™ induction cap sealer from us, our experts will work with you to identify which unique coil is best suited to your requirements, helping you achieve maximum productivity with minimum energy requirements.
Learn more about the range below:
FLAT
ALL-IN-ONE
WIDE TUNNEL
DEEP NARROW TUNNEL
Flat Sealing Heads
A flat sealing head is typically used for containers with liners positioned close to the top of the cap. The magnetic field is directed straight down into the foil liner.
- The standard Flat sealing head is ideal for cap diameters ranging from 53mm to 150mm
- The All-In-One sealing head is designed to seal closures from 15mm up to 150mm
- Easily adjust the induction field using the slider mechanism with pre-calibrated lock positions for specific cap diameters
- This sealing head is ideal for packagers looking to seal a variety of containers on one line.
Tunnel Sealing Heads
Tunnel sealing heads are designed to to deliver energy-efficient sealing for containers with smaller foil diameters or where there is a significant gap between the liner and the top of the closure.
Tunnel sealing heads work by directing the induction field from both the top and sides of the container to create an efficient, hermetic seal.
- Suitable for challenging applications such as child-resistant (CRC), conical, spouted, and dispensing caps
- Available in standard, narrow, wide, and deep formats
Sealing Head FAQs
Your choice of induction head, or sealing coil as it is also known, is arguably the most important aspect to achieving fast, reliable and energy efficient induction sealing.
The sealing head is responsible for transferring the energy into the foil liner. So, ensuring that energy is focused to the right place can increase your sealing speeds while reducing energy consumption.
Enercon has two main ranges of sealing heads – the tunnel coil and the flat coil. Both come in several variations to ensure a suitable match for the diverse range of caps and containers our customers wish to seal.
Our technical experts will match your requirements to one of our unique coils to help you achieve maximum productivity with minimum energy requirements.
Among the things we take into consideration are the cap diameter and height, the line speed and the type of foil liner.
Before you purchase a machine, we can provide free sealing trials in a specially designed trials area to ensure your choice of container, cap and foil liner can deliver perfect, consistent seals.
Over the past 40+ years, Enercon’s expert engineers have continuously developed our sealing coils to not only offer the widest range of coils on the market, but the most energy efficient too.
Enercon’s technology ensures the energy is focused only in the area it is needed, rather than radiating 360 degrees.
As a result, the power supply (kilowatt rating) to the machine can be reduced without reducing throughput, resulting in a more energy-efficient system.
The efficiency in energy transfer also means we have been able to develop shorter coils than many of our competitors. So not only are you saving time by reducing the time each container is under the sealer, but you are also saving factory space from our compact designs.
Our sealing heads are specifically designed to be quickly interchangeable, meaning a single machine can seal a wide range of products with minimal downtime. If you develop new product lines later, you can also purchase additional sealing heads, so you will be future proofing your packaging capabilities with an Enercon machine.
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Case Studies
UNUSUAL SHAPED CAPS?
“Enercon’s machines are also the only induction sealers we can use to seal our gourmet culinary sauces because of the different style cap. We are also able to change the sealing heads very easily, which allows us to seal different sized products without losing production time.”
STRONGER SEALS
“The difficulty with a rectangular shape means it is vital to create the right balance of energy around the lid of the container without causing the seal to scorch. However, Enercon has created a unique tunnel coil that allows for even distribution of energy over the neck of the container to achieve the perfect seal without overheating.”
DIFFICULT TO SEAL CONTAINER?
“We chose Enercon because of the wealth of application experience of the market leader and because of the collaboration with us in sealing trials to ensure a perfect seal for this difficult to seal container and cap”.
