Configuration of the Sealing Area
What are the important role(s) of five key consumable parts?
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The configuration of the sealing area for dual and single heating type of Fuji Impulse sealers are shown as below.
Heating Element
The standard width of heating elements is 2mm, 5mm and 10mm, as well as the fusing type. The configuration of the heater terminals is changed for the modification of the electrodes according to the Product Liability Law. In this page, we will only introduce the shapes of heaters used mainly in our general-purpose products.
The four heating elements shown on the left are called “Ring-tongue terminal (or flat-shaped terminal) heaters.” They are characterized by the round hole on the terminal, designed for a heater-securing screw to go through. The heating elements shown on the right are called “L-shaped terminal heaters.” These heating elements have terminals that are bent in the shape of the letter “L”.
This means that a 2 mm heating element may refer to either the ring-tongue or the L-shaped terminal, and the models that have the same name may not share the same heater (or the terminal) depending on the versions.
This means that a 2 mm heating element may refer to either the ring-tongue or the L-shaped terminal, and the models that have the same name may not share the same heater (or the terminal) depending on the versions.
Electrodes
Before the models were changed to comply with the new Product Liability Law, there were two types of electrodes: screw-on electrodes (for 2mm- and 5mm-wide single heaters) collectively referred to as gsquare-type electrodes,h and slip-in terminal electrodes (for 10 mm-wide single heaters, and dual heaters).
The new models in compliance with the Product Liability Law are collectively called gType H electrodes,h and are used as a universal electrode in most of the general-purpose models, with some exceptions *(Note 1).
*(Note 1) The square-type electrodes continue to be used in large machines, the CA Series, fusing types with sealing length of 600mm, and cut heater specification models (5C and 10C).
1. Square-type electrode, screw-on type: Approximate height is 55mm. Screw is on top to secure the heating element. (Please see Figure ‡@ on the left.)
- Previously, this electrode was used in single-heater models, excluding the older model of 10mm-wide heaters.
- Today, this electrode is used in cut-heater specification models.
2. Square-type electrode, slip-in terminal type: Approximate height is 55mm, and no screw is used. (Please see Figure ‡A on the left.)
- This electrode was used in the older models of 10mm-wide single heaters and dual heaters.
- Today, this electrode is used in Fi-600Y, the CA Series, and large machines.
3. Type H electrode: Approximate height is 30mm. (Please see Figure ‡B on the left.)
- This electrode was not used in the older models.(It was used in V-300 starting with the
D-type for single heaters and B-type for dual heaters.) - Currently, most of Fuji Impulse sealer models use this type of electrode with the
exception of P series, FS series, Fi-600Y, the machines with fusing type heating element and large-size models.
Microswitch and Powerswitch
Microswitch
The microswitch notifies the timer that the clamping lever is down. A failed microswitch may cause one of the following two adverse affects.
- The heating will not start.
- Even after the contact points is fused, malfunctioned microswitch would cause the power to keep
distributing , resulting in a persistent heating state.
The new microswitch has been used since 1994, replacing the old one for easy changeover and minimum risk of allowing accidental Switch-On by hand or some other causes even with the clamping lever in OFF position.
Power Switch
When the machine is over-used and the timer is over-loaded, the heating time could get longer than pre-set time. Starting from 1994, we have adopted power switch with overheat-protection feature that shuts off the circuit.