/ LOS-NTW Series
Electric/Microcomputer Controlled Vacuum & Gas Flushing Impulse Sealer for Large Size Packaging
Vacuum, Gas flushing & Seal for large size bag
4 types of vacuum pump for NT series
When you want to flush the air inside the bag and reduce the package volume, or when you want to utilize oxygen scavenger to extend product life, you can use the Vacuum Sealing function.
When you want to fill the bag with nitrogen gas to prevent oxidation, or with carbon dioxide to create bacteria static or insect-repellent effects or to prevent spoilage and mold growth, you can use the Gas-flush Sealing function.
The LOS-NT/NTW series sealers are long-length sealers capable of creating both vacuum and gas-flush seals.
LOS-NT Series Vacuum pump→
Photo of LOS-1000NT1
LOS-NTW Series Ejector vacuum→
Main Features
Applications and Features:
Vacuum (gas-flush) sealer for large bags
Operating method:
Electric/air-cylinder operated
Packaging type:
Seal only&vacuum&gas-flush
Daily use frequency as model selection guideline:
Up to 1,000 bags, electric/air-cylinder operated
Bag size:
60 cm (23.6 inches), 80 cm (31.4 inches), 1 m (39.3 inches), 1.2 m (47.2 inches)
Compatible packaging materials (total thickness of two or more sheets):
Single-side heating type:
PE : 0.4 mm (15.7 mil),
PP : 0.3 mm (11.8 mil),
NY : 0.3 mm (11.8 mil),
PVA : 0.3 mm (11.8 mil),
other laminated materials : 0.4 mm (15.7 mil)
Double-side heating type:
PE : 0.6 mm (23.6 mil),
PP : 0.4 mm (15.7 mil),
NY : 0.4 mm (15.7 mil),
PVA : 0.4 mm (15.7 mil),
other laminated materials : 0.5 mm (19.7 mil)
■ Standard equipped with heating-temperature control
Setting the ideal sealing condition
The most prominent feature of the Onpul System is the ability to set the ideal sealing condition.
The heating temperature setting is made possible through the use of a high-sensitivity temperature sensor for temperature control, and a microcomputer controller.
You can now complete the heating process at just the right temperature for melting the film regardless of the air temperature or fluctuations in the machine temperature.
Seal heating-temperature range: 60 to 250 ℃, Seal-cooling temperature range: Between 40 ℃ and the seal heating temperature. *Note
*Note The seal-cooling temperature must be set at a value lower than the user-defined heating- temperature setting. If the cooling-temperature is set at a value too close to the heating- temperature, cooling will not take place and result in the shortening of the life of some parts, including the Teflon part.
■ Easy-to-operate microcomputer controller
The selection and setting of work method and vacuum method, as well as of gas-flush method and its frequency, are all controlled at the microcomputer controller. Simply press the touch panel buttons for the settings.
■ Use of I-heating element
Use of I-heating element, which expands relatively little when heated, reduces the chance of the heating element breaking in the middle. Its use also prolongs the life of peripheral components such as the temperature sensor that comes in contact with the heating element.
Click here to learn more about I-Heating Elemnt.
■ Adjustable head height
The height of the head of the sealer can be adjusted to suit the package content by operating the buttons on the side of the machine.
・ When the bag is set vertically to the head: 800 to 1370 mm (31.4 to 53.9 inches)
・ When the bag is set horizontally to the head: 1020 to 1590 mm (40.2 to 62.6 inches)
■ Tilting the head angle
By turning the adjuster knob, the tilt angle of the head can be variably adjusted between 0 and 90 degrees to suit the package content. For example, when packaging powders, tilting down the sealer head will allow the sealing to complete without powder spilling from the bag opening.
■ Integrated exhaust system
The exhaust air from both the driving compressor and the vacuum pump is released from the machine through a 5-meter (16 feet) 12⌀ tube.
■ Disconnection alarm
In the event the heating element is disconnected, the LCD screen on the microcomputer controller will alarm the user.
Model variation features:
The vacuum pump and ejector capacities represent stand-alone values, before installation to the machines.
LOS-NT Series（Vacuum pump）
In this series of sealers, vacuuming is conducted through the use of a vacuum pump. These sealers are effective for increased vacuum when the package content is solid.
4 types of vacuum pump and model name
NT1 Series |
Standard specification using a diaphragm type dry vacuum pump to be used in the clean environment. |
|
NT2 Series |
Installed with a relatively small rocking piston type dry vacuum pump for the better performance than that of N1 series. |
|
NT3 Series |
In stalled with a diaphragm type dry vacuum pump similar to N1 series, the highest vacuuming level can be achieved. |
|
NT4 Series |
The highest exhaust velocity with a rotary vane vacuum pump to enhance the vacuuming speed. |
Click here for the detailed vacuum source & air source specification.
Applications
Semiconductors, precision parts, containers, cushioning material, futon, blankets, clothes, food ingredients, dried vegetables, instant foods, beans, etc.
Type NT: Rear view
Filter installed.
LOS-NTW Series（Ejector vacuum）
In this series of sealers, vacuuming is conducted through the use of an ejector, powered by the compressor air. These sealers are effective for vacuum-packaging liquid and powder contents, and for shortening the time required for vacuuming. (Although time required is shorter than for vacuum pumping, using the ejector for vacuuming results in a lower ultimate vacuum.)
Ejector capacity
・ Exhaust velocity:1650 L/min
・ Ultimate vacuum −56.9 Kpa
Compatible compressor (option)
・ ＝1.5 kW 165 L/min 0.6 MPa or greater
Applications
Candy, paste products, juice, powder, seafood, pickles, sauce, boil-in-bag food, delicatessen, food ingredients, chemical agents, fertilizer, animal feed, etc.
Type NTW: Rear view
Ejector installed
For your reference: Airflow inside the ejector
When compressed air is sent through the nozzle in the direction of being ejected from the machine, a phenomenon occurs in which all air in the nozzle is pulled in the same direction. The ejector vacuum method takes advantage of this phenomenon.
While the vacuuming speed gained using this method is about three times faster than that of the vacuum pump method, the resulting ultimate vacuum is about one-half that of the vacuum pump method.
Options
■ Tension arm
Tension arms can be set at both sides of the bag. The tension arms spread open going into the sealing process to hold the bag straight and pulled tightly. Because the sealing is conducted with the bag pulled straight, the sealed finish is clean with fewer chances of failure.
■ 2 line-printing device: Manufacturer option
"At the time of ordering, the user can choose to have the exterior 2-line printing device FEP-A installed as a manufacturer option.(It cannot be installed after the purchase.) This allows the printing of texts and dates such as "Best before MMDDYY" and "Sell by MMDDYY."FEP-A is a hot-print-type printer that utilizes heated types to print carbon."
2lines print sample
Safety Features
■ Equipped with emergency stop switch
In an emergency, press the Emergency Stop Switch to turn off the breaker and shut off the power. This will return the lever to its initial position.
■ Casters with a locking mechanism
The standard-equipped casters with a locking mechanism make moving from one work area to another easy, while providing a steady work setting once the machine is situated.