SKU: 20662835822

Hawo HPL ISZ IVM 300mm Hand Held Impulse Heat Sealer | Machine & Transformer Power Supply Box + Optional Spare Parts Kit

Sale price$490.84 Regular price$545.38
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Description

Hawo HPL ISZ IVM 300mm Hand Held Impulse Heat Sealer | Machine & Transformer Power Supply Box + Optional Spare Parts Kithe Hawo HPL ISZ + Teflon Coating impulse heat sealer is perfect for the hermitic sealing of polyethylene packaging. The unit features a 300 width ceramic blade. Supplied including the transformer box required for a safe power supply. These units are all lightweight, flexible and very efficient. Perfect where optimal heat seals are required. Please note Tyvek is registered Dupont IP Order this unit as a stand alone or in a bundle with a spare parts

he Hawo HPL ISZ + Teflon™ Coating impulse heat sealer is perfect for the hermitic sealing of polyethylene packaging.

The unit features a 300 width ceramic blade. Supplied including the transformer box required for a safe power supply.

These units are all lightweight, flexible and very efficient. Perfect where optimal heat seals are required.

 

  • Please note Tyvek® is registered Dupont IP
Order this unit as a stand alone or in a bundle with a spare parts kit. Save when purchased together. See photos for details of spare parts included.


Units supplied as standard with a 3 pin UK 230 V plug connection. United states 2 pin 110V and European 2 pin 230V plug connections can be supplied at no extra cost. If you require a specific plug please state this in the additional details section of the order at the checkout.
  • Includes 1 year Hawo factory warranty.
  • Model pictured is a HPL ISZ 300mm Jaw with transformer box.
Please note these machines are safety sealed and disinfected inside their boxes for hygiene purposes. 

Hawo HPL ISZ Impulse Heat Sealer 300mm

This manual impulse heat sealer is perfect for welding materials such as polyethylene, polypropylene, PVC, and polyamid. Thin Pe laminated paper and aluminium composite foil welding can also be done. For a constant manual bag sealer see the Hawo HPL WSZ range.

The market leading design focuses around optimal seal quality. This portable heat sealer allows the operator to easily work in small spaces. Or when sealing on site.

It's also intended for those that produce their own packaging and want more manoeuvrability.

Perfect for when the items being packaged may vary in size. Or be awkward to seal.

As well as these excellent ergonomic features this sealer is designed with a 'built to last' mentality. No 'heat up time' is standard here. Allowing this unit to perform for the most demanding of sealing projects.

This impulse sealer is easy to handle thanks to a separate impulse power supply box.

The welding process is automatic and can be adjusted to suit your temperature requirements. It can even be adjusted after you close the tong.

These heat sealers can also be used in conjunction with on of our table mountings as an extra. These allow for the best usability and ease of storage.

This machine can be used in some medical packaging environments but where ISO 11607 packaging validation is required look here for suitable solutions.

Benefits of this machine

  • Suitable for the thermal packaging of Polyethylene, Polypropylene, Polyamide, thin PE-coated paper and aluminium film.
  • Mobile.
  • No heat-up time.
  • Ceramic sealing welds.

Technical Data

  • Hawo HPL ISZ 300 Impulse Heat Sealer 300mm.
  • Welding pliers for films have a seam length of 300mm (11.8in) Welding time Infinitely adjustable.
  • Seam Width 3mm (0.12 in).
  • Film thickness tolerance 2 x 0.5 (0.02 in).
  • Power Supply 250VA, Mains connection 230V, 115V.
  • Total Weight 6.2KG (13.6lb) Soldering pliers weight 1.7kg (3.7lb).

Delivery Time

2 - 3 Working Days

Note - please not that this thermal heat sealer is intended for use by appropriately trained trades people and professionals.


See all our hand held heat sealers.

 

Product Specifications (.PDF)

Frequently Asked Questions

• What exactly is the Hawo ISZ Impulse Heat Sealer 300mm and what makes it a standout product?

The Hawo ISZ Impulse Heat Sealer 300mm is a professional, handheld impulse sealing tong designed for the reliable and efficient sealing of various flexible packaging materials. Its standout features include its portability, immediate readiness for use (no warm-up time), and the ability to produce a strong, consistent ceramic sealing weld, making it a market leader for optimal seal quality.

• How does Hawo's impulse sealing technology work in this 300mm model?

The Hawo ISZ Impulse Heat Sealer utilizes impulse sealing technology, meaning the ceramic sealing jaw only heats up for a brief moment when the tongs are closed and pressure is applied. This "impulse" of heat creates a strong, hermetic seal, and then the sealing jaw cools down quickly, which contributes to energy efficiency and user safety.

• Is the Hawo ISZ Impulse Heat Sealer 300mm truly portable for on-site sealing?

Absolutely! The Hawo ISZ 300mm is explicitly designed with mobility in mind. It's lightweight and easy to handle, coming with a separate transformer box for its power supply, allowing operators to easily work in small spaces or when sealing on site, giving you ultimate flexibility.

• What types of materials can the Hawo ISZ Impulse Heat Sealer 300mm effectively seal?

This versatile Hawo sealer is perfect for welding a wide range of thermoplastic materials, including polyethylene, polypropylene, PVC, polyamide, thin PE-coated paper, and even aluminium composite foil, ensuring you can tackle diverse packaging needs.

• What's the typical sealing width provided by the Hawo ISZ 300mm heat sealer?

The Hawo ISZ Impulse Heat Sealer 300mm produces a consistent and robust 3mm (0.12 inch) wide sealing seam, which is ideal for creating strong and secure closures on your packaging.

Relevant products you may want to consider:

• For what kind of products or items is the Hawo ISZ Impulse Heat Sealer 300mm particularly well-suited?

This Hawo sealer is excellently suited for packaging items that vary in size or are awkward to seal, such as large industrial products, machinery components, spare parts for shipping, office supplies, food, photographic agents, and even medical products where ISO 11607 validation isn't strictly required.

• Can I use the Hawo ISZ 300mm for creating my own custom-sized bags or pouches?

Yes, definitely! Since it's a handheld tong, the Hawo ISZ 300mm gives you the freedom to create custom-sized bags or seal at any point along a film, which is incredibly useful for users who produce their own packaging and require more maneuverability.

• How do I adjust the sealing time on the Hawo ISZ Impulse Heat Sealer 300mm for different film thicknesses?

The sealing time on the Hawo ISZ 300mm is infinitely adjustable directly on its "W.I.N.G" impulse power pack. This allows you to fine-tune the heat applied to suit various material thicknesses, ensuring an optimal and reliable seal every time. You can even adjust it after you've closed the tong.

• Is there a specific "warm-up" period required before I can start sealing with the Hawo ISZ 300mm?

No, that's one of the best things about the Hawo ISZ 300mm! There's absolutely no heat-up time required; the unit is ready to perform instantly, making it incredibly efficient for demanding sealing projects.

• Can the Hawo ISZ 300mm be used as a static, benchtop sealer if needed?

Yes, it can! While designed for handheld flexibility, the Hawo ISZ 300mm can also be used in conjunction with an optionally available table mounting clamp, transforming it into a static table model for added usability and ease of storage in a fixed workstation.

Relevant products you may want to consider:

• How do I ensure an optimal and consistent seal when using the Hawo ISZ Impulse Heat Sealer 300mm?

To achieve an optimal and consistent seal, it's crucial to correctly adjust the sealing time on the impulse power pack according to the material thickness. Ensure the material is flat and free of wrinkles in the sealing area. The automatic impulse process ensures the seal is completed correctly once the tongs are closed.

• Is it suitable for sealing delicate items that might be sensitive to excessive heat?

Because the Hawo ISZ 300mm is an impulse sealer, the heat is applied only for a short, controlled duration, and the jaws cool quickly. This precise control helps prevent excessive heat exposure to delicate items, making it a safer option for heat-sensitive contents compared to constant heat sealers.

• What is the maximum film thickness that the Hawo ISZ 300mm can seal effectively?

The Hawo ISZ Impulse Heat Sealer 300mm is designed to seal a film thickness tolerance of 2 x 0.5 (0.02 inches), which translates to effective sealing of various common packaging films.

• What are the power supply requirements for the Hawo ISZ Impulse Heat Sealer 300mm?

The Hawo ISZ 300mm operates with a power supply of 250VA and is compatible with mains connections of 230V or 115V, making it suitable for a range of electrical setups.

• What is the overall weight of the Hawo ISZ Impulse Heat Sealer 300mm, including its transformer box?

The total weight of the Hawo ISZ Impulse Heat Sealer 300mm, including its transformer box, is approximately 6.2 kilograms (13.6 lbs), with the sealing pliers themselves weighing around 1.7 kg (3.7 lbs), making it relatively light and manageable.

Relevant products you may want to consider:

• Does the Hawo ISZ 300mm have any ceramic components, and if so, what are their benefits?

Yes, the Hawo ISZ 300mm features ceramic sealing welds. The benefits of these ceramic components include their durability, resistance to wear, and their ability to ensure a constant and even temperature distribution across the sealing bars, leading to fast and reliable seals.

• How does the Hawo ISZ 300mm's "GreenTek" feature contribute to its efficiency?

The "hawo GreenTek" feature of the Hawo ISZ 300mm signifies its energy efficiency. Because it's an impulse sealer, the device only draws power when it's actively being used to create a seal, meaning the heating element isn't continuously consuming energy, leading to cost-effectiveness.

• What kind of general maintenance is recommended for the Hawo ISZ Impulse Heat Sealer 300mm?

For optimal performance and longevity, it's important to regularly clean the sealing bars of your Hawo ISZ 300mm to prevent residue buildup. Also, inspect and replace wear parts like the Teflon™ coating and heating elements as needed, ensuring they are in good condition.

• Are spare parts readily available for the Hawo ISZ Impulse Heat Sealer 300mm?

Yes, spare parts kits for the Hawo HPL ISZ IVM 300mm are available, which typically include crucial components to help maintain your sealer's performance and extend its lifespan.

• How do I clean the sealing jaws of the Hawo ISZ 300mm safely?

Always ensure the Hawo ISZ 300mm is disconnected from the power supply before cleaning. You should clean the device only with a dry or damp soft cloth and a mild cleaning agent, being careful not to allow any water to enter the device. Never wet clean the internal components.

Relevant products you may want to consider:

• What is the purpose of the Teflon™ coating on the Hawo ISZ Impulse Heat Sealer 300mm?

The Teflon™ coating on the sealing jaws of the Hawo ISZ Impulse Heat Sealer 300mm serves to prevent the packaging materials from sticking to the heated surfaces during the sealing process, ensuring clean, consistent seals and extending the life of the sealing element.

• Is the Hawo ISZ Impulse Heat Sealer 300mm considered safe for general use in professional environments?

Yes, the Hawo ISZ 300mm is designed with safety in mind. As an impulse sealer, the heating element only activates when the jaws are closed, reducing the risk of burns. It's important to note that this machine is intended for use by appropriately trained tradespeople and professionals.

• Does the Hawo ISZ 300mm come with any factory warranty?

Yes, the Hawo ISZ Impulse Heat Sealer 300mm typically includes a 1-year Hawo factory warranty, providing assurance regarding its quality and performance.

• Are there any specific hygiene considerations for the Hawo ISZ 300mm upon delivery?

Yes, for hygiene purposes, these Hawo machines are safety sealed and disinfected inside their boxes when supplied, ensuring they arrive in a clean and ready-to-use condition.

• Can the Hawo ISZ Impulse Heat Sealer 300mm be used for medical packaging that requires ISO 11607 validation?

While the Hawo ISZ 300mm can be used in some medical packaging environments, if specific ISO 11607 packaging validation is required, you would typically need to look at Hawo's dedicated validatable sealing solutions designed for those stringent medical applications.

Relevant products you may want to consider:

• What power plug options are available when purchasing the Hawo ISZ 300mm from Valdamark Direct?

Valdamark Direct offers the Hawo HPL ISZ IVM 300mm with various power plug options to suit different regions, including UK 3 Pin (Type G) 220-240V, Euro 2 Pin (Type F) 220-240V, and US 3 Pin (Type B) 100-127V.

• Can I purchase a spare parts kit along with the Hawo ISZ 300mm from Valdamark Direct?

Yes, Valdamark Direct provides options to purchase the Hawo HPL ISZ IVM 300mm either as the sealer with the transformer box alone or as a bundle that includes a spare parts kit for convenience.

• What is the typical delivery timeframe for the Hawo ISZ Impulse Heat Sealer 300mm from Valdamark Direct?

When ordering from Valdamark Direct, the typical delivery time for the Hawo ISZ Impulse Heat Sealer 300mm is usually between 2 to 3 working days.

• How does the Hawo ISZ 300mm differ from constant heat sealers, and what are the advantages?

The Hawo ISZ 300mm is an impulse sealer, meaning it only heats up during the sealing cycle. In contrast, constant heat sealers maintain a continuous temperature. The main advantages of the Hawo ISZ's impulse technology are no warm-up time, significantly lower energy consumption, and enhanced safety as the sealing jaw cools rapidly after each seal.

Relevant products you may want to consider:

• Beyond the 300mm size, are there other sizes available in the Hawo ISZ Impulse Heat Sealer range?

Yes, the Hawo ISZ Impulse Sealing Tongs are available in a range of jaw widths to accommodate different sealing needs, including 300mm, 450mm, and 630mm, ensuring there's a suitable size for various packaging dimensions.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20662835822

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4.2 ★★★★★
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ralversity
Massapequa, US
★★★★★ 3
Does the job, but assembling by yourself is a nightmare
Size: 4 Panel-88'', Color: Black
Does it do the job? Yes, although as others said there are small gaps but it's not a huge deal. The price is also good. But the reason I'm giving it a 3/5 is simply because the assembly for this was a complete nightmare. I honestly don't think I would recommend this to anyone unless they have another person to help them assemble it, because doing it by myself was terrible. I don't think I'd buy this again, I think I'd opt to just spend a bit more money and save myself the trouble personally.
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Reviewed in the United States on May 29, 2026
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Talagand
Phoenix, US
★★★★★ 4
Reasonably adequate room divider
Size: 4 Panel-88'', Color: Beige
I'm reviewing this as I assemble it. Couple things: 1. I didn't expect as much assembly. I've ordered dividers before and they more-or-less came as one unit. Sometimes the panels needed screwing together. These require complete assembly and come largely as three rods: two make up vertical columns and snap together. Another one (called part "C") makes the horizontal columns and you have two of these per panel (one attaches to part "A" and the other part "B"). These parts are metal with a plastic shim. Using the wood screws to attach to part "C" is a real pain in the neck. There's not much holding the panel in place so it's a little tricky. One tactic I've found while I'm assembling that works for the initial connections from parts A and B to their respective "C" rods is to hold the screw in place with a screw driver and then rotating the rod around the screw. This will do a number on your hands if you aren't wearing gloves. This obviously doesn't work when completing the connection. Using a driller driver on this is really near impossible because there isn't anything you can use to secure it in place. You can use it on the first panel, but as it gets longer, it becomes increasingly difficult and because it isn't wood, it's really tight. I considered drilling larger pilot holes but since there are only 4x4=16 screws I need to screw in, I just decided to use my screw driver to complete it. 2. Also related to assembly. When completing the panels (attaching parts "A" and "B" to parts "C" that have the cloth cover on it), you have to be careful that when you tighten that side that it isn't loosening the other side. Because the pilot holes are so tight, you can end up rotating the rod, which rotates it in the same direction as looser on the original side. Having someone hold the "C" rod in place while you screw it in is probably the easiest approach. I didn't have a 2nd person, so I just had to keep flipping back and forth and tightening both sides as I screwed it in. Not the worlds biggest deal, but annoying nonetheless. 3. The way the instructions are written, they seem to suggest building this thing progressively; that is, you do panel 1, then 2, connect them together, then do 3 and connect it, etc. I took a different route that I suspect saved me quite a bit of trouble, and I assembled all four panels first and THEN connected everything together. 4. For the love of God make sure you check that the plastic tip is on the same side for every panel. Otherwise, you have to take one side apart again and reverse it. On the bright side, if this happens, you've essentially bored out the pilot holes to be the correct size... which is having me question if I shouldn't have just bored them out to the appropriate width in the first place. 5. Attaching all of the panels together is also an enormous pain in the ass unless you happen to have an 88" long elevated surface. Attaching the legs either requires you to elevate one side, which will invariably twist the inexplicably cheap material in the bottom connectors... or you can attach them sideways... or you can put this thing upright, having two people hold the panels in place while you use the allen wrench to tighten the bolts on the underside. None of those are particularly great options. NOW on to the utility itself. 1. The panels do let some light through (I didn't believe their advertising, and that was one of the reasons that I bought beige, is that I wanted it to not be too dark). They aren't transparent though, so it isn't that far off from their description. They functionally work great, and keep the mess of wires hidden and when I'm sitting at my desk, actually reflect quite a bit of light into my office. Great! 2. My wife has described these as "the most hideous piece of furniture ever conceived of by man." So it does not have spouse approval factor. Granted, she will seldom be in my office area, so that isn't the end of the world. 3. These are really hard to align in a way that doesn't look a little tacky. There are some plastic connectors but they don't do a bang up job of keeping these in place. Each panel is slightly tilted and it's... quite obvious. I may at some point make my own improvements to these to help make them more level. It's not a particularly expensive product so I wasn't expecting much so it's fine and I'm not going to ding them on the rating because of it. All said, would I buy this product again? Probably not. It's assembly was ~90 minutes which is about 75 minutes longer than I was anticipating spending on this (not including the 5 minute writeup that I'm doing here). But am I going to return it? Also no, if for no other reason I'd be just as annoyed taking it apart and putting it in the original box to return it.
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Reviewed in the United States on October 31, 2023
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Val
Charlottesville, US
★★★★★ 5
True to Description
Color: Black, Size: 4 Panel
Love it!! I bought it for privacy while the nurse is dressing my dad. There were several colors black matched the decor . It blocked the sunlight and street lights. Durability and quality very good. Easy closure when not in use. Lightweight. No assembly needed
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Reviewed in the United States on May 29, 2026
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Verified Purchase
Clockworks
Birmingham, US
★★★★★ 5
Nice room divider!
Color: White, Size: 8 Panel
The white panels are a nice off-white color. shipped in perfect condition. Already assembled so set up was quick. We use them to separate a photo studio from the main entry. Easily covers a 6 Ft. opening to the room. They are a woven material with wood colored sticks to support the weave. They are about 6 Ft. tall at the top of the curved section but less at the hinged sections. Light and easy to set up and take down. We are straddling two different floors so the extended legs at the bottom make this easy. Not sure how to clean them but they look great so far!
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Reviewed in the United States on October 21, 2025
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Verified Purchase
Rockermom
Waukegan, US
★★★★★ 5
Instant Privacy
Color: Beige, Size: 8 Panel
Bought this to separate a ground level living area used as an office. Works well to cover visual clutter; allows a clean look when entering the front door. Comes fully assembled. Hinges are sturdy enough, as long as the panels aren’t stretched too far; have to allow some bend between them. For the price point, quality and functionality are satisfactory.
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Reviewed in the United States on August 22, 2025

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