Use vacuum sealing to remove air, reduce package volume, or combine with oxygen absorbers to extend shelf life.
An optional gas flush function is available to prevent oxidation with nitrogen gas or to suppress bacteria, insects, spoilage, and mold with carbon dioxide gas.
Offers various optional features to meet diverse needs.
Supports vacuum and gas-flush sealing from 60 cm to 1.2 m.

 

Icon Description　

About the i-Heating Element

 

■ Compatible Compressor Requirements
 The L Series uses compressed air to generate the pressure required for sealing. A separate compressor with suitable capacity must be provided by the user.

● LN / LNP / LND / LNR Series  

● LNW Series  

 

* Images of controllers and panels on this page are simulated.

 

■ Seal Only Models: L Series (Details Here) 

 

Electric Large Vacuum Sealer with Temperature Control

Reliable vacuum & gas-flush* sealing for large bags.
Vacuum pump models (LN / LNP / LND / LNR series) offer four pump types to suit various applications.
For powders and similar products, the ejector type LNW series is available.
A 7-inch color LCD touchscreen enables intuitive parameter settings and easy operation.

* Gas-flush function is optional.

 

 

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LN / LNP / LND / LNR　Series

Vacuum Pump Models: Specifications & Overview 

Photo of LN-1000 Single-Side Heating Model

See images of the control unit in a different position 

 

Photo of LN-1000 Single-Side Heating Model (Front View)

See images of the control unit in a different position. 

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LNW Series

Ejector Models: Specifications & Overview 

Photo of LNW-1000 Single-Side Heating Model

See images of the control unit in a different position.  

 

Photo of LNW-1000 Single-Side Heating Model(Front View)

See images of the control unit in a different position.  

 

Main Features (Common to All Models)

Applications and Features: Large Vacuum Sealer

Drive Method: Electric & Air-Cylinder

Packaging Type: Seal & Vacuum & Gas Flush (Optional)

Daily Usage (Model Selection Guide): ≤ 1,000 seals/day (Electric & Air-Driven Models)

Bag Opening (Max.): 60 cm (23.6 inches), 80 cm (31.5 inches), 1 m (39.4 inches), 1.2 m (47.2 inches)

Compatible Packaging Materials (Total Thickness of Overlapped Films):

Single-Side Heating Model

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 Model

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)

 

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■ Overview of the LN Series

The LN / LNP / LND / LNR and LNW Series are large vacuum sealers, with an optional gas-flush function for vacuum gas-flush sealing.

・ Vacuum Sealing: Removes air to reduce package volume or for use with oxygen absorbers to extend shelf life.

・ Gas-Flush Sealing: Nitrogen prevents oxidation, while carbon dioxide provides bacteriostatic and insect-control effects, helping to prevent spoilage and mold growth.

A 7-inch color LCD touchscreen enables intuitive parameter settings and easy operation.
Various optional accessories and functions allow users to select only the features required to meet specific needs.

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■ Standard 7-Inch Wide Color LCD Control Unit

Photo of LN-1000 Vacuum Sealer

 

The control panel features an intuitive interface that simplifies setup and navigation, reducing operational complexity.
It supports kanji and hiragana, image display, ten-key numeric input, and allows users to check consumable parts information as well as error causes and troubleshooting guidance.

 

Click to view control panel sample images. 

* Control panel design is subject to change without notice.

 

Operation modes (vacuum, gas flush, etc.), vacuum methods, operation parameters, and optional gas-flush settings (methods and cycles) can be easily configured via the touchscreen.

 

The control unit’s position and angle are adjustable to match the sealer head height and angle for comfortable operation.

 

Photo of LN-1000 Vacuum Sealer

See images of each control unit position here. 

 

■ Standard Heating Temperature Control

Achieve Ideal Sealing Conditions

The key feature of ONPUL is its ability to set and maintain ideal sealing conditions. Temperature is monitored by a high-sensitivity sensor and controlled by a microprocessor, ensuring precise sealing at the film’s melting temperature, unaffected by ambient temperature or machine heat buildup.
Heating Temperature Setting Range: 90–250°C
Cooling Temperature Setting Range: 60°C to the set sealing temperature*

* Cooling temperature must be set lower than the heating temperature.
Setting it too close may cause insufficient cooling and reduce the service life of components such as the fluoro glass sheet.

 

■ Easy Vacuum Nozzle Stroke Adjustment

With a sensor, the nozzle stroke can be adjusted via the control unit—no tools required.
Nozzle stroke adjustment range: 10–190 mm (from pressure lever to nozzle tip)

 

See images of each nozzle length here.  

 

■ Up to 10 Operation Pattern Registrations

Up to 10 settings can be registered with alphanumeric names. Available patterns vary depending on the selected mode: Seal Only, Vacuum, or Gas Flush (optional).

1 Seal only

2 Vacuum (Manual) + Seal

3 Vacuum (Timer) + Seal

4 Vacuum (Gauge) + Seal

5 1 Time Vacuum (Manual) + 1 Time Gas + Seal

6 1 Time Vacuum (Timer) + 1 Time Gas + Seal

7 1 Time Vacuum (Gauge) + 1 Time Gas + Seal

8 Multiple Vacuum (Manual) + Multiple Gas + Seal

9 Multiple Vacuum (Timer) + Multiple Gas + Seal

10 Multiple Vacuum (Gauge) + Multiple Gas + Seal

 

■ Equipped with i-Heating Element

The i-heating element  , made from a low thermal expansion material, is used as the heat source.
By minimizing expansion during heating, it reduces stress on the heating element, lowering the risk of breakage and extending the service life of surrounding components, including temperature sensors.

 

■ Compatible with Various Packaging Materials

Seal Lengths: 600, 800, 1000, 1200 mm
Seal Widths: 5 mm or 10 mm
Two heating methods are available:

・ Single-Side Heating – Suitable for materials up to 0.3 mm total thickness (combined layers).

・ Double-Side Heating (Optional) – Suitable for thicker and laminated materials up to 0.4 mm total thickness.

The double-side heating model also accommodates heavy-duty and gusseted bags. When used with gas-barrier materials and oxygen absorbers, it helps extend product shelf life.

 

■ Adjustable Head Height

The head height can be electrically adjusted via buttons on the side of the control unit to accommodate various package contents.

・  Vertical head position: 830–1400 mm

・  Horizontal head position: 1030–1600 mm

 

 

See still images for each head height here. 

 

■ Adjustable Head Angle

The head angle can be steplessly adjusted from 0° to 90° via the adjustment handle to suit the product.
For powder packaging, tilting the sealer head downward helps prevent powder from spilling out of the bag during sealing.

See still images for each head angle here.  

 

■ Centralized Exhaust

Exhaust air from the drive compressor and vacuum pump is discharged outside the machine through a 5 m tube (ø12 mm).
The vacuum pump exhaust is also connected separately via a 5 m tube (ø15 mm).

 

Main Features (Common to All Models)

LN / LNP / LND / LNR Series (Vacuum Pump Models)

Air evacuation is performed by a vacuum pump.
Ideal for solid contents requiring high vacuum levels.
Four pump specifications are available to suit different applications.

 

Series Names by Pump Type and Features

Refer to the “Specifications by Vacuum Source / Air Source” table for details. Vacuum pump and ejector performance values are based on manufacturer catalog data.

 

■ Separate Air Compressor Required

Refer to the “Specifications by Vacuum Source / Air Source” table for details. Vacuum pump and ejector performance values are based on manufacturer catalog data.
Use a compatible air compressor with the following specifications:
0.75 kW  80 L/min 0.5 MPa or higher

Applications

Semiconductors, precision components, containers, cushioning materials, bedding, blankets, clothing, food ingredients, dried vegetables, instant foods, beans, etc.

 

LN / LNP / LND / LNR Series (Rear View)

Filter Installed

 

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LNW Series (Ejector Models)

Air evacuation is performed by an ejector powered by compressed air from a compressor.
Suitable for liquids and powders; however, the attainable vacuum level is lower.

Ejector Performance

・  Exhaust Speed: 160 L/min

・  Ultimate Vacuum: −30 kPa

 

■ Separate Air Compressor Required

A separate air compressor is required to operate the LNW series sealer.
Use a compatible air compressor with the following specifications:
1.5 kW 165 L/min  0.55 MPa or higher

Applications

Sauces and pastes, cream products, juices, powders, seafood, tsukudani, retort foods, prepared dishes, food ingredients, chemicals, fertilizers, and animal feed, etc.

 

LNW Series (Rear View)

Ejector Installed

 

 

Reference: Airflow Inside the Ejector

High-pressure compressed air discharged through the nozzle toward the exhaust side creates a suction flow inside the ejector, which is used for air evacuation.
Compared with a vacuum pump, it provides approximately three times faster evacuation speed, but achieves only about half the vacuum level.

 

Options

       

 

The LN / LNP / LND / LNR Series and LNW Series offer various optional functions to meet diverse needs.
Users can select only the functions required for their applications.
Selected option codes are included in the product name on the serial number label, enabling easy identification of installed options and specifications.

 Gas Flush Option 1 

 Automatic Lift Option 2 

 Tension Arm Option 3 

 Double-Side Heating Option 4 

 Braided Heating Element Option 5 

 Powder Nozzle Option 6 

 Cyclone Filter Option 7 

 IoT Option 8  (Scheduled for release in Japan. Availability in other regions is under consideration.)

 

 

Although these videos are in Japanese, they visually demonstrate optional features of the L / LN / LNW series.

 

 

 

■ Gas Flush Option 1

LN-1000G-10

An optional gas flush function is available to meet various packaging needs.
Nitrogen prevents oxidation, while carbon dioxide provides bacteriostatic and insect-control effects, helping to prevent spoilage and mold growth.

 

Control Panel Sample Screens (with Gas Flush Option)

Click to view control panel sample images. 

* Control panel design is subject to change without notice.

 

 

■ Auto Lift  Option 2

LN-1000M-10

Prevents Seal Wrinkles During Vacuum

As the vacuum progresses, the sealing section automatically lowers to prevent bag misalignment and sealing failure caused by wrinkles formed during air evacuation.

Although this video is in Japanese, it visually demonstrates optional features of the LN / LNW series.

 

 

■ Tension Arm Option 3

LN-1000T-10

Tension arms extend outward on both sides to hold the bag firmly stretched during sealing.
An evenly tensioned bag reduces wrinkles, improves the seal finish, and minimizes sealing failures.

Photo of LN-1000

 

 

■ Double-Side Heating Option 4

LN-1000-10D

Ideal for thick bags and heavy-duty films.
Applies heat from both the upper and lower sides.

 

■ Braided Heating Element Option 5

LN-1000-10DK

Stable Sealing for Powders

Simulation temperature control system is adopted to stabilize the performance of the braided heating element and reduce seal failures caused by powder interference in the sealing area.

 

 

The graph below compares seal strength with and without powder interference.

Without powder, there is little difference between the ribbon and braided heating elements.

With powder, the ribbon heating element shows a significant decrease in seal strength, while the braided heating element shows only a slight reduction

 

 

■ Powder Nozzle Option 6

LN-1000-10-P

Nozzle-type vacuum requires the nozzle to be positioned close to the product during evacuation.

When handling powders, some material may be drawn into the nozzle, causing product loss.

The powder nozzle features a special structure designed to reduce powder intake during evacuation.

 

* Structure and specifications of the powder nozzle are patent pending.

 

 

 

 

■ Cyclone Filter Option 7

LN-1000-10-F

Powder drawn in through the nozzle is separated from the air by centrifugal force.

Powder-laden air spirals downward inside the cyclone, where centrifugal force causes powder to strike the inner wall and fall, separating them from the air. The narrowed lower section redirects airflow upward, allowing clean air to exit from the top outlet while preventing pump damage caused by powder intrusion.

It also reduces filter element replacement effort.

For ejector evacuation (LNW series), it further minimizes powder discharge from the exhaust port.

 

 

 

■ IoT Function Option 8

LN-1000-10-i

Scheduled for release in Japan. Availability in other regions is under consideration.

Utilizing communication functions, the system enables remote monitoring of operating status, production management, and settings via a network connection.
In the event of a malfunction, it displays error causes and provides troubleshooting guidance.

 

Safety Features

■ Emergency Stop Switch

In case of an emergency, pressing this switch immediately shuts off the power circuit, and the lever returns to its initial position.

 

■ Lockable Casters

Standard lockable casters allow easy relocation and stable positioning during operation.

Photo of LN-1000

 

Photo of LNW-1000

 

Video

Although this video is in Japanese, it visually demonstrates optional features of the LN / LNW series.