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SealerOn Induction Sealing

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    • SealerOn™ Induction Machines – Take a Closer Look
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    • SealerOn™ 3000 Large Caps
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  • MeRo Sealer Machine Introduction
    • MeRo Induction Machines – Take a Closer Look
    • MeRo 1KW Air Cooled Bottle Sealer
    • MeRo 2KW Air Cooled Induction Sealer
    • MeRo Flat Caps
    • MeRo™ Specialty Caps
  • Capless Induction
    • Capless Induction Machines – Take a Closer Look
    • Packaging in Glass or PET When Considering Induction Seal
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MeRo

MeRo 2KW Air Cooled Induction Sealer

Induction Sealer

The MeRo 2KW Air Cooled unit is a reliable racehorse with standard features that many quote as confusingly priced options. It is what we call the medium priced high end machine.

The machine has a Motorised Height Adjustment, Missing Foil Detection, and Bottle Accumulation Detection. It also has an energy trasnferred reading for process validation.  This  unit can be supplied with a flat sealing head or an ADJUSTABLE WIDTH tunnel sealing head.

Really built in Europe(Italy); not simply assembled with Chinese circuit boards and parts and then sold as a western made machine.

The MeRo equipment comes from the MeRo family of power electronics that includes Coronatreater that go well beyond  75KW !!; so you can trust that you are dealing with equipment manufactured by a company that knows how to build and handle power electronics.

MeRo 2KW Air Cooled
MeRo Induction Sealer
MeRo ADJUSTABLE WIDTH Sealing Tunnel

Electrical and Mechanical Specifications*

Supply voltage 3×380 V. 50 Hz three-phase

  • MAXIMUM DRAWN POWER: 2,2 KVA
  • MAXIMUM OUTPUT POWER: 2 KW
  • WORKING FREQUENCY:30 – 50kHz
  • AMBIENT TEMPERATURE : 0°C..+40°C (-25°..+70° transport) (-25°..+55° storage)
  • RELATIVE HUMIDITY : <85%
  • PROTECTION : IP20 STANDARD
  • CERTIFICATION : EC (LOW VOLTAGE)
  • DIMENSIONS GENERATOR : Dimensions height 600mm, length 365mm, depth 460mm. Weight 55 Kg

*Subject to Change

Typical Application Configuration:

   Plastic Cap

CONVEYOR SPEED: up to 30 m/min;
FOIL SIZE:   35 mm;
CAP SIZE:    55 mm ext. diameter;
CAP STYLE:    flip top screw cap (see drawing);
BOTTLE MATERIAL:   Plastic

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What Shape Sealing Head is Best on an Induction Sealers?

Induction Sealers

To understand this question of the sealing head shape we must first understand how an induction seal is achieved. 

The sealing head is the part of the machine that is placed over the path of the product cap/lid.  Within the sealing head is usually long oval shaped coils of thick wire that carry high current that changes direction many thousands of times a second.  This creates a magnetic field at right angles to the coil that also changes direction many thousands of times a second.  The magnetic field can travel through air and plastic but it does get weaker as it travels away from the coils that generated the magnetic field.  When the magnetic field comes across metal, it will act to generate current in the metal.

 

Induction Machine Sealing Head
Induction Machine Sealing Head

In the case of the heat sealing machine, it waits for a product that has a metal laminated foil in its cap.  The magnetic field from the sealing head acts to generate current in the laminated foil and the laminated foil gets hot.  Laminated to the foil is a layer that will melt or become “wet” with heat.  When the product has completely passed from under the induction machine the foil will begin to cool and the layer that became “wet” will set to bond the laminated foil across the opening of the product.

From the above “theory” it can be understood that the sealing of a bottle or product using induction machines will depend on how long the product is under the magnetic field and how close it gets to that origins of the magnetic field.

There are two distinct shapes of sealing heads for cap sealers being Flat profile and Tunnel profile sealing heads.

The Flat profile sealing head is suitable for “Standard Flat Caps” . A “Flat Cap”, generally speaking, refers to a cap where the plane of the induction liner is within 4.0 mm of the plane of the Cap’s top surface.

The Tunnel profile sealing head is suitable for “Specialty Caps”. A Tunnel Induction Sealing Head lets you seal caps where the foil sits a distance greater than say 4 mm from the top surface of the cap; this is often the case with twist top spouts, flip top lids, sports drink caps, sipper caps or shaker caps.

The Tunnel sealing head concentrates the magnetic field to an area within the tunnel profile and hence provides stronger magnetic fields over a generally smaller width path for the products passing underneath.  A Tunnel sealing head also allows the coils within the sealing head to have a path lower than the top of the product caps.  This brings the magnetic field closer to the plane of the foil within “specialty caps”.  The drawback to this Tunnel profile sealing head is that it is usually not very good for large caps and it does limit the range of cap sizes that can be efficiently sealed.  There is a small exception to this rule with the MeRo™ brand induction sealer with an adjustable width tunnel profile.  This machine can typically cater for a range of specialty caps with an adjustment of 30mm which would mean a typical cap diameter range of 30mm to 60mm could be very efficiently sealed.

Efficient cap sealing means that less time is needed under the sealing head and hence higher production speed is possible.

A Flat profile sealing head will allow for a greater range of cap sizes and even allows for that Sealing head to be placed at an angle across the product’s path to achieve sealing of cap diameters that are even wider than the coil winding pattern within the sealing head.  It is quite possible to have a Flat profile sealing head that can seal caps from 30mm to 110mm wide.  The trade-off for the versatility of this profile sealing head on a heat sealing head is lower speed throughput and an inability to seal specialty caps.

 

MeRo Flat Caps

Flat Caps

Flat Caps Original

With Induction sealing it is important to identify if your range of plastic caps is considered “Flat Caps” or specialty caps.

A “Flat Cap”, generally speaking, refers to a cap where the plane of the induction liner is within 4.0 mm of the plane of the Cap’s top surface.

See the picture below:

Flat Cap Diagram

With only Flat Caps, a Flat Sealing Head can be provided.
With A Flat Sealing Head it is possible to cater for a wide range of cap sizes.

The energy transfer for a Flat Sealing Head is not as efficient as a Tunnel sealing head but the versatility often makes up for the reduced speed throughput compromise of a Flat Sealing Head

 

Mero Flat Caps
Mero Flat Caps

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MeRo Sealer Machine Introduction

 MeRo Induction Sealer Machine Range

We believe there is no better value medium priced “High End” Induction Sealing Equipment. There are unique features to allow process validation and adjustable width sealing head tunnels are available.

 

MeRo Induction Sealing EquipmentMeRo Induction Sealer Machines feature:

  1. An Air cooled system (Absolutely no need to water cool the induction head).
  2. Compact construction for easy integration into the filling line.
  3. High power efficiency thanks to the configuration of the power circuits and the use of IGBT modules.
  4. Sinusoidal output waveform (Not Square or chopped).
  5. Constant and Precise Output power due to the configuration of the regulation circuits.
  6. Easy to use controls that display operating parameters and alarm signals.
  7. Remote control Start-Stop interface.
  8. Power variation monitor which can be set by the user to activate an alarm.
  9. Manufactured in accordance with EN-60204-1 standards, Electromagnetic (EMC) compatibility in accordance with EN-5511 and EN50082-2 standards.
  10. Motorized height adjustment
  11. Set-Up Validation providing an Energy absorbed reading- A key advantage over Nearly Every other make

Depending on the range of product and cap, lid, closure shapes, different sealing heads can be supplied.

Options include:

  1. Missing Foil Detection with Bottle Eject Mechanism or Signal
  2. Bottle Accumulation Detection to avoid the situation where bottles are stalled under the active sealing head.
  3. Pressurized Cabinet version to work in dangerous areas.
  4. Fieldbus connection to the production process ASI/PROFIBUS/CAM OPEN/DEVICE NET
  5. Integration of power regulation proportional to the speed of the conveyor via feedback from your existing conveyor’s speed controller. This is another key advantage that MeRo are able to offer over nearly other make.

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MeRo Induction Machines – Take a Closer Look

Our Induction Machines

Induction sealing systems are available in a variety of configurations. Your application and production requirements enable us to determine which system is best for you.

On this web site we show the most common configurations, however, we have the capability to supply a number of less conventional induction sealing configurations where required.

The MeRo™ Induction Machine Range is a high end quality machine, however, we have kept this range in the medium priced range for Induction Sealing Equipment.  The MeRo™ induction machine boasts exclusive features such as adjustable width sealing tunnels and an energy transfer process validation measurement capability. Whether your product is packaged at few containers per minute or much higher throughput, the MeRo™ equipment represents the best value Induction Equipment for its calibre of machinery.

Below are some pictures of the MeRo induction Sealing machinery range and some options.

 

MeRo 1KW Air Cooled
MeRo 1 Kw - Air Cooled

MeRo 2KW Air Cooled
MeRo 2KW Air Cooled

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MeRo™ Specialty Caps

The MeRo Induction Sealing machines allow for versatility of the Tunnel Sealing Head by offering an Adjustable Width Tunnel.

With this unique feature you can cater for a range of different diameter Specialty Caps and obtain the most efficient energy transfer possible (This means high throughput is possible with a lower power setting).

A Tunnel Induction Sealing Head lets you seal caps where the foil sits a distance greater than say 4 mm from the top surface of the cap; This is often the case with twist top spouts, flip top lids, sports drink caps, sipper caps or shaker caps.

This Adjustable Width Tunnel is perhaps the most versatile option as it will also seal standard flat caps – again providing adjustment to achieve the most efficient energy transfer possible.

MeRo Specialty Caps

Specialty Caps Original

Specialty Cap Adjustable Sealing HeadSpecialty Cap MeRo 2KW unit

 

 

 

 

 

 

 

 

 

 

 

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  • Home
  • SealerOn™ Induction Sealing
    • SealerOn™ Induction Machines – Take a Closer Look
    • SealerOn™ Mini
    • SealerOn™-100 Affordable Entry Level Induction Machine
    • SealerOn™ 400
    • SealerOn™ 3000
    • SealerOn™ 3000 Large Caps
    • SealerOn™400 Flat, Spout and Flip Caps
  • MeRo Sealer Machine Introduction
    • MeRo Induction Machines – Take a Closer Look
    • MeRo 1KW Air Cooled Bottle Sealer
    • MeRo 2KW Air Cooled Induction Sealer
    • MeRo Flat Caps
    • MeRo™ Specialty Caps
  • Capless Induction
    • Capless Induction Machines – Take a Closer Look
    • Packaging in Glass or PET When Considering Induction Seal
  • Heat Sealing
  • Contact Us
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