Capless Induction SealingNew sealing technology providing performance improvements, significant cost &weight reduction opportunities and greater design flexibility

Benefits of Capless Induction SealingProvides greater control

over sealing process

Allows immediate inspection of sealed container

Rubber insert in sealing head delivers better compliance with uneven sealing surfaces than is possible with a cap

Allows cooling of seal under pressure – better performance with hot-fill products

Reduces cap and liner costUse of new sealing technology provides opportunity for efficiency gains, cleaner production, improved visual appearance of product and enhanced consumer experience with easy to remove foil.

Conventional Conduction Sealing

Product

Pressure & heat

Heat conducted into

foil cap

Hot, stainless steel sealing

head

Heat pattern on sealing head face

210°C

Foil lined cap Cap torque presses foil against neck of bottle Foil heated through cap using electromagnetic

waves Heat-seal layer melts and bonds foil to bottle

Conventional Induction Sealing

Pressure Heat pattern on foil seal -

only sealing area of foil is heated

Product

Heat insulation material

Heat induced into foil where

required to form the seal

Ambient temperature sealing head

Capless Induction Sealing

21°C

230°C

Conventional Induction Capless Induction

Components expensive due to

requirements of cap lining process & foil

retention in cap

Completely reliant on cap torque for

sealing pressure (no control)

Quality assurance difficult to verify as cap

covers foil

Restrictions on pack design due to

cap/foil/thread fit

Can use low cost reel-fed material and

light-weight cap

Sealing pressure mechanically applied so

is reliable and measureable

Foil can be subject to inspection processes

after application

With primary seal being formed by foil,

significant flexibility over design of neck

finish and closure is provided

Comparison Between Sealing Systems

Conventional Conduction Capless Induction

Inefficient, most of the energy put into the

head is lost into the atmosphere

Poor reliability with regular element &

thermocouple failures due to high

temperature levels within head whilst

operating

Difficult to control with temperature time-

lag

Workplace safety issues with hot surfaces

No conformity with hard & irregular

surfaces (ie PET/Glass )

Lost production with warm-up & cool down

Highly efficient, only the foil seal is heated

during the sealing process

Extremely reliable since system is solid

state and sealing head remains at ambient

temperature with no thermal stress

Precise digital control over energy input to

head

Extremely safe as no hot surfaces present

Use of silicone rubber and other face

materials to provide exact conformity with

sealing surface

Instant start-up and shut down for

optimum availability

Comparison Between Sealing Systems

Increased EfficiencyElectromagnetic heating within foil, no heat lost into environmentEnergy only used when machine sealing, zero consumption on standby

Total ControlReal time digital control over induction power level (temperature)Exact control of induction cycle timePrecise control of pressure with rubber head insert for even conformityAbility to maintain pressure on foil during ‘cooling’ phaseMeasurement of induction power on each seal possible =100% QA validation

Improved ProductivitySignificant reliability improvements as no heat is present in the componentsInstant start-up & shut-downFast sealing cycle timesClean sealingGreater operator safety with cold sealing head

The Benefits of Capless Induction Sealing

Examples of Capless Induction Sealing

Metal Plastic Glass

High Accuracy Non-Round Print Register