A Guide To Sealing Machines

By Author: Vivek Joshi
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A Guide To Sealing Machines
Sealing machines are gaining immense adoration across various industries and are seeing increased sales owing to the convenience and finish they provide to the products. They can be used easily and are extremely simple to operate. This article is going to be a guide to sealing machines so that you can pick up the right machine catering to your industrial needs.

What Are Sealing Machines?
Sealing machines are machines used to seal containers with liquids, granules, powders, and sprays and keep them fresh for a longer period. The packaging materials used to seal the products include bags, pouches, aerosol containers, and blister packages.

There are three categories of sealing machines based on the operation:

● Manual Sealing Machine
This machine helps in holding or the setting of the item/product.

● Semi-Automatic Sealing Machine
This machine requires an operator to perform some activities with higher accuracy and speed.

● Fully-Automatic Sealing Machine
This machine requires no human interference and is fully functional on its ...
... own.

What Are The Different Types Of Sealing Machines?
There is a wide variety of sealing machines, from manually operated hand sealers to fully automated tray sealers, each sealer has its own importance according to the industry size. Following are the different types of sealing machines:

Heat Sealing Machine
A heat sealing machine, also known as a heat sealer is a device used to seal one thermoplastic with another similar thermoplastic material using heat and pressure. The heat sealing process involves direct contact between the thermoplastic and the product to be sealed and is of 3 types- impulse heat sealing, constant/direct heat sealing, and ultrasonic heat sealing.

● Impulse Heat Sealers
These sealers are used to seal thermoplastics such as Polyurethane and Polyethylene as these materials require a moderate temperature get an effective seal.

Impulse sealing is commonly used to seal multi-layer, metalized, and pouches. If properly set up, an impulse heat sealer can seal two sheets of heavy thermoplastic materials.

Among impulse heat sealing machines, hand sealers are the most commonly used machines as they are compact and easy to use. Hand sealers are the perfect choice for small-scale businesses owing to their manual operation and low cost.

● Constant Or Direct Sealers
Constant heat sealers are more adaptable for poly-coated materials as they have higher control of the temperature at the sealing jaws. Unlike the impulse heat-sealing process, the sealing bars of a direct sealer is continuously held at the specified temperature at all times.

● Ultrasonic Heat Sealers
Ultrasonic sealers use pressure and high-frequency vibrations to establish a seal between two rigid plastics. This sealing process is not used in conventional industries but in aerospace and automotive industries.

Foot-Operated Sealing Machine
A foot-operated plastic sealer gets activated by a foot pedal in order to seal a pouch or a plastic bag. Foot sealers work on the impulse heating principle, hence providing an instant sealing effect. It comes equipped with a plug-in timer that controls the sealing time needed for different materials. Once the timer is set, it gives a consistent seal.

Foot sealers are good high volume industries as they are capable of sealing 15-20 pouches/bags per minute. Depending on the model of the sealer, pouches up to 35" wide can be sealed.

Pneumatic Sealing Machine
The pneumatic sealing machine works either on a direct heating process or impulse heating process. This sealing machine uses a pneumatic working principle which means that compressed air is used to close the sealing bar for an effective and high-quality seal.

This sealer is widely used in chemical industries where electric machine sealers can prove to be hazardous. The pneumatic sealers are good to seal bags or pouches containing materials that may cause an event of arc or spark with electricity.

Tray Sealing Machine

Tray sealing machines also called tray sealers are types of equipment that join plastic film lids with trays of different materials, sizes, and depths. The tray sealers come in semi-automatic and fully automatic variants.

The tray sealer finds a wide application in food and beverage industries to preserve frozen meals, liquids, ready-made and fresh meals.

L-Bar Sealing Machine
L Bar sealers are used with plastic film to create three sealed edges from doubled-over lengths of material or from the independent top and bottom webs. These sealers are used with heat tunnels and shrink film.

What Is The Importance Of Sealing Machine?
Sealing technology is of vital importance for manufacturers as it has the power to make or break the success of a production line.

● With the right sealing process and sealing machine, sealing not only ensures product safety and quality but also has the potential to improve presentation and usability, resulting in a more visually appealing brand.

On the flip side, inadequately sealed products can result in both financial and brand damage.
● In operational terms, sealing is often the backbone of the brand. It improves efficiency and quality to the next level.

● The sealing machine is simple to maintain and is cost-effective.

● The food industry can benefit a lot from sealing machines because plastic packaging helps preserve many food items such as meat, cheeses as well as some pre-made dishes that otherwise are vulnerable to getting attacked by microbes before reaching the consumers.

● The varying sizes and operating principles of sealing machines allow you to choose the perfect sealer according to your space and location.

Our experience in this field and this guide to sealing machines would help you to pick up the right product for your business. Consult us for further details and we will help your business grow.