Hand-sealing systems are used to seal containers for consumer, bulk, and original equipment shipments of products. This equipment closes and seals an individual box, thus providing a long, continuous horizontal or vertical seal. You can buy a unique handheld sealer with various filling, shape, and sealing functions.
Uniform case sealers are used for production runs of packages of the same size and can be physically reset between box cases. You can buy a handheld sealer for random case sealings when each package size differs randomly. They can automatically switch to the box dimension.
How do Hand Held Sealers Work?
These machines activate heated sealer wires when the seal bar is pressed closed. A silicone sealing pad can withstand direct heat contact. The sealing bar forces the wire and the film to melt the seal-forming material and seal the package closed.
Hand sealing systems use heat as a medium for sealing components and work by producing the heater ribbon on the surface of the system with a high current impulse, which causes a heatwave intense enough for the bag to be pressed between the sealing bars to melt and seal up.
Hand sealers can be used to tie or seal identical and different materials as long as they have a thermoplastic coating. When the sealing bar is sufficiently heated at adequate degrees, the material is melted and attached like a zip liner bag. These machines are widely used to seal bags to protect the contents from decay and other damage.
Impulse sealers are strong tools used to seal various kinds of plastic packaging, especially poly bags containing parts or components in groups. These sealers use an electrical impulse to heat the metal wire that melts one plastic layer to the other, thus causing a permanent seal that can only be broken by opening it later. There is no warm-up time or cool-down time required for impulse sealers.
Types of Handheld Sealers
- Impulse hand sealer
- Flat wire impulse hand sealer
- Flat wire impulse hand sealer with cutter
- Stainless steel impulse hand sealer with cutter
- Portable impulse hand sealer
How to Use a Hand Sealer to Seal a Pouch?
Heat sealing offers great protection to your products. But, the packaging should have a heat-sealable laminate interior for this method to work. For using a handheld sealer, make sure you operate at a lower setting and go higher only if necessary. Fill the contents in the bag and gently run your fingers over the zipper. Then, place the top of the bag above the tear notches between the seal bars, push down gently for approximately 2-3 seconds, and release.
Hot Bar Hand Sealing Machine Applications
Hand-sealing machines are suitable for sealing poly pouches and can be used to pack items that are solid, liquid, or paste-based. This impulse-sealing system is widely used in supermarkets and the packaging industry. Most systems have 12, 18, and 24 inches sealing lengths and a great adjuster. Some of the machines can also seal and cut at the same time. They use a hot bar heated to a high temperature for perfect sealing.
Hot bar hand sealers are efficient and durable and are thus used for sealing polythene bags and other thermoplastic materials. Some machines even come with built-in electronic timers to monitor the time of sealing different materials. They reduce the packaging time by cutting, trimming, sealing, and tubing in a single stage. This outstanding efficiency offers simple operation.
What is the Sealing Temperature?
The sealing temperature, or the seal initiation temperature, is the temperature at which a particular seal strength level is obtained. It can be calculated by plotting a seal strength v/s temperature of the seal jaw. The sealant also contributes to other package characteristics like transparency, resistance to abrasion, tear, strength, puncture resistance, moisture barrier, and resistance to oil and grease. It can also contribute to the ease of turning the structure into a film-like melt strength in the blown film for bubble stability and extrusion coating durability.
Benefits of Impulse Heat Sealer
Heat-sealed bags ensure the contents are tamper-free, water-resistant, airtight, and hygienically enclosed. It also prevents oxidation and keeps ready-to-use items like soaps and candles clean. It is an excellent way to maximize customer support and loyalty by offering safe packaging, thus increasing the possibility of repeat business and positive feedback.
Impulse sealers are affordable to operate as power is only used during the sealing process when the sealing arm is down. Hand sealers offer quick operation through speed and performance, protection to the goods, water-tight seal for the shipments, and flexibility for power savings, thus reducing your energy bills. The sealers are ideal for packing confectionery, gifts, and food products.
Summing Up
You can offer suppliers that offer various types of handheld sealers of the highest quality. Look for machines that are versatile and can handle all types of packaging.