Q What is induction cap sealing?
  The magnetic induction sealing is a non-contact cap sealing operation. When the bottles reach the electro-magnetic field, they are magnetized through an electro magnetic induction heating effect. The aluminum foil is quickly heated to the desired temperature. The content of the bottles is not induced by the electro magnetic field, but the heat seal film with aluminum foil attached on the cap (such as FDA approved inner seal) is. When the aluminum foil is heated by the coil of induction cap sealing machine, the heat is then transferred to the heat seal film, which quickly reaches the melting point, and becomes an adhesive to bond the cap foil and bottle.


Q How does it work?
  In normal process, customers buy induction foil lined caps from a cap or foil supplier. Cap styles of all varieties are available from these suppliers.
After filling and capping, the bottle passes under an induction coil which emits a varying electromagnetic field and the conductive aluminum foil liner begins to heat. The heat seal film on the liner also heats and flows onto the lip of the bottle. When cooled, the heat seal film creates a bond with the bottle resulting in a sealed product.


Q How fast can you seal?
  Sealing speed is largely dependent on the diameter of the foil, the style of cap, the material of bottle, the speed of your conveyor, the power supply size, and the induction coil.


MPM is conveyor meter per minute. The formula to approximate BMP (bottles/minute) to FPM is:
MPM = BPM x spacing in centimeter ÷ 100

Speed estimates are based upon most severe scenario, fully loaded coil with cap touching cap through the full length of the sealing coil. It is not common to have the aforementioned in a practical packaging environment but this assumption must be made to provide general sizing guidelines. In most cases the bottle will be larger than the cap and will allow space between caps. Space between caps may allow for higher conveyor speed on some caps.


Note: These are only approximations. There are many factors to consider when testing maximum speed capabilities of a particular size induction sealer. To confirm size we recommended testing a suitable sealing coil, power supply and conveyor speed with your caps, bottles and foil liners in our lab.


Q Can you seal to glass?
  Yes, if the foil is suit for glass bottle. Dry products are no problem. Liquid products in glass container are generally not conductive to induction sealing.


Q What is induction heating equipment?
  The heating equipment equipped with NC control or touch - sensing screen. Control brands may be specified. Employs roller and servo drive combined with the use of deformation control to achieve high accuracy and high stability heat treatment. It consists of a high frequency power unit, working station, internal circulated water cooling system and a quench cooling system. The work station employs a hydraulic / pneumatic system and servo drive system to achieve high accuracy and automated operation. The internal circulated cooling system should meet the requirements of the work piece. An enclosed circulation system will achieve accurate and stable cooling performance. All pipes are manufactured from SUS material for rusting-free and no jamming in circuit.


Q What kind of product suit for our induction heating equipment?
  The induction heating equipment is suitable for various parts, such as Knuckle, Drive shaft, C.V. joint, Hub, Gear, Ballscrew, Car parts...etc.


Q What is induction shrink fit tooling?
  The shrink fit tool suitable for various tool shank tapers. The chucks apply induction coils for heating the tool shrank. Especially use for H.S.S and T.C.T tools. About 10 ~ 20 seconds will vary with tool diameter. Due to hot expanding and cold shrinking, it fit the tool into the shank. After cooled, the tool can be used.






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