What is an ONPUL Impulse Sealer?

Established engineers, lab techs, manufacturers or production managers are likely to be familiar with the concept of an impulse sealer. If you are new to this type of sealing system, here is a brief description of how the concept works and what the advantages of these sealing systems are.

An impulse sealer heat-seals packages of varying shapes, sizes and descriptions using thermal conductivity. Controlled by highly advanced microprocessors, a high current is sent on impulse to the heater ribbon, which is located on the heating-blade's surface.

On placing the section requiring sealing between the heating blades and pressing, the heater ribbon receives the current – and subsequently heat – and thermally fuses the section. The current then stops and the seal is kept under pressure until cooled. This allows the finish of the seal to remain clean, a matter that is often a problem with constant heat sealers, where the loss of pressure can lead to untidy, weakened seals.

This process has several advantages. First of all, impulse sealers are instantly ready for use; there is no waiting until the unit has heated up sufficiently, effectively reducing production times, for instance. Second, unlike constant heat sealers, which require continual electricity supply for continued use, this type of sealer only requires power during the actual process of sealing, making it far more economical.

Third, the risk of injury to operators is greatly reduced, as there are no constantly hot surfaces. Finally, but by no means least importantly, because both fusion and cooling of the seal take place under pressure, seals are always clean, tidy and consistent in strength!

ONPUL impulse sealers are a much more advanced version of this concept. Essentially, ONPUL stands for ‘temperature control impulse sealer.’ It is a term put together from 'ON' - derived from the Japanese word for temperature, 'Ondo,' and 'PUL' which comes from the 'pulse' in 'control impulse sealer'.

To put it in a nutshell, ONPUL impulse sealers have a special added function that makes them even more efficient than other systems using this concept, namely the ability to monitor and maintain the desired setting to seal at a given ideal temperature.

High-precision sealing is achieved through melting film at its precise fusing temperature, then allowing it to cool while remaining under pressure. Once the desired temperature has been set, it is maintained by micro-computer control and high-sensitivity, low-profile sensors directly measuring the temperature of the heater blades.

As a result, seals will remain clean and strong even after prolonged use - such as in volume production runs, for example. Because the temperature is continually monitored and adjusted to remain at the ideal setting, changes in environmental or machine temperatures no longer lead to changes in the appearance and/ or strength of seals.

In addition, ONPUL impulse sealers are also extremely energy and labor efficient. Heaters are only supplied with power as and when needed, and only require enough power to achieve the desired temperature, meaning there are no waiting times or excess use of electricity. Because parts are only heated when in use - and are then kept at a constant temperature - wear, which is often a result of gradual over-heating, is also reduced.

In short, an ONPUL impulse sealer allows you to set the ideal conditions required to achieve perfect seals every time, even after long periods of use, while simultaneously providing substantial savings on time, effort and maintenance. This makes them the most reliable and cost-effective solution to sealing requirements in any given setting – from food or medical to industrial and/or technological component packaging and anything between.

A range of available sizes – from table top and semi-automated table top and foot-operated sealers to medical, vacuum and long size sealers – further ensures that equipment is available to suit any sealing requirements in a whole range of industries.

All About Impulse Heat Sealers

Fuji heat sealers are high quality thermal heat-sealing devices that seal products in package films, or bags, by delivering an instantaneous high current impulse to a heater ribbon on the device surface. Fuji Impulse heat sealers come in a variety of systems and sizes, have several applications, and are utilized in many industries from food packaging, manufacturing, construction, apparel, to the medical community.

There is a growing demand for Fuji Impulse heat sealers given the ease of use, high standards on safety, low energy costs, and consistent reliability delivering clean, quality seals every time, for every product. No matter what type of industry you are in, there is a Fuji Impulse system that can accommodate your company’s specific needs.

Impulse heat sealers have single and dual heating options and are made up of five key consumable industrial parts; these consist of a heating element, silicone rubber, Teflon sheet, glass tape, and a sarcon sheet. The Fuji Impulse sealers are microprocessor controlled, as well. Browse our general catalog for further information and details on specific product models.

The benefits in using Fuji Impulse heat sealers are ease of use and no waiting, low risk of injuries, lower energy costs, and consistent reliability in leaving a very clean seal. When you’re ready to use the Fuji Impulse sealer, it’s ready for you. It’s as easy as turning the system on, taking action and the heat sealer is hot and ready for immediate use. After starting up the system, there is no warm-up duration. Other brand units require a waiting warm-up period. This lag takes extra time and translates into wasted power, which creates additional electrical costs, and the waiting time calculates into work inefficiency and higher labor costs. The Fuji Impulse system only uses electricity during the sealing process for the heater. Therefore, there is not an additional drain on power – saving electricity – nor is there time wasted on employees waiting. 

Some sealers require a sealing bar to stay hot at all times, which can result in additional electrical costs, and worse, injuries. When sealers need to stay on at all times, this can give rise to unintended personal injuries. Injuries happen because it is easy to get burned by the hot bar from a heat sealer that is required to be on constantly while working. With the Fuji Impulse sealer, none of the components are hot all the time. They are hot only when the system is in operational use. This lowers the risk of personal injury from unwanted burns, and reduces company risks.

Impulse heat sealers deliver clean seals because the fusion and cooling takes place under pressure in the process. Due to the Fuji Impulse sealers’ sealing frames and levers being made of aluminum, this aids in the cooling process and helps congeal the packaging film. Aluminum’s ability to handle high heat-conductivity relieves heat from both the pressure lever and sealing frame. It’s important to remember to allow cooling to take place while the system is in the closed position after heating. Table top units indicate that the cooling process is complete by beeping. Sufficient cooling time is a must for optimal sealing results. Once the cooling process has occurred, the seal generated is stronger, precise, and clean. Other brand systems, like a continuous heat sealer, may provide heat; but leaves the fusing and cooling to take place during shrinking which in turn can create uneven packaging.

From the easy-to-use table top P Series Poly Sealers, to the industrial FIF Foot Operated Series for large and extra-large packaging; Fuji Impulse heat sealers have your products in the bag! 

Tips for Using Impulse Heat Sealers

Heatsealers are sensitive instruments and it’s helpful to understand the best ways to implement them. When you’re using any heated elements, it’s important to maintain the highest safety standards. The following tips will help you not only stay burn-free, but also use your impulse sealers in the proper way.

1. Make sure enough cooling time has elapsed. Without enough time to cool, the sealed area could shrink, or even be cut off altogether. For tabletop models, like our P/PC and V-300 series sealers, an audible beep will let you know the sealing process has been completed. The cooling process is important as it produces cleaner and more solid sealing results.

2. Seal thoroughly by allowing enough time for the seal to set. Heating time must be adjusted according to the packing material’s properties.

3.Heat only enough to be sufficient for your task. Excessive overheating can cause damage to the sealer’s components, a decrease in work efficiency, and a waste of energy. It’s always best to specify your heating needs based on your current task.

4. Make sure your device is working properly. Impulse sealers only use an electric current during the heating cycle. Please don’t be confused when your impulse sealer does not have heat after you’ve switched the power on. Continue through the process outlined in your operating manual and the sealer will be ready.

Want to learn other helpful tips for your impulse sealer’s operation? Visit us today at Fuji-Sotex.com to learn more about how to use your impulse sealer properly.