Cutting wool and foams (PIR/PUR)
Cutting Mineral Wool: MINOVA Cordless Tools for Wool, PIR, and PUR
Two types of tools are used to cut mineral wool on construction sites: battery-powered knives (insulated saws) for manual cutting and string trimmers for precise cutting on a workbench. All products in this category are powered by an 18V battery and cut rock wool, glass wool, PIR, and PUR without a cord—which is crucial on scaffolding and in attics.
The pro-cut.pl store offers 4 MINOVA models for cutting wool and insulation: the MINOVA W01 knife (starting at 769 zł), the MINOVA PRO W03 professional knife (starting at 2,799 PLN), the MINOVA W100 wire cutter (starting at 5,699 PLN), and the MINOVA W101 stationary cutter (starting at 7,299 PLN). Each model comes with warranty service in Poland and available replacement parts.
Cordless Knives for Mineral Wool – MINOVA W01 and W03
Cordless saws are hand tools that are ideal for any situation where you need to quickly cut a panel right at the installation site. MINOVA W01 (769 PLN) reaches a speed of up to 3,000 strokes per minute, weighs 1.48 kg with the battery, and is equipped with two blades: a 150-mm wavy blade for mineral wool and a 300-mm straight blade for PIR/PUR. The blade stroke is 13 mm, which ensures effective cutting even in thicker panels.
MINOVA PRO W03 (2,799 PLN) is the version with dual 240-mm blades, a brushless motor, and a speed of 2,800 spm. The cutting angle can be adjusted from 45° to 135°, allowing you to cut boards in corners and around skylights without changing the blade. The cutting depth is up to 240 mm with the short blade and up to 350 mm with the long blade. The W03 is compatible with Makita, DeWalt, Milwaukee, and Bosch batteries via adapters—so you can use the batteries you already own.
String Cutters for Wool and Insulation – MINOVA W100 and W101
String cutters replace traditional saws wherever repeatable dimensional precision is required—for example, when cutting wedges, roof bevels, or „press-fit" pieces between rafters. They do not use a blade or a hot wire—instead, a serrated string (0.75 mm thick) makes 1,500 strokes per minute, which generates minimal dust and produces a smooth edge without tearing the fibers.
MINOVA W100 (5,699 PLN) is a portable wire-cut guillotine weighing 17.5 kg with a corrosion-resistant aluminum frame. It folds into a carrying bag. It cuts materials up to 270 mm thick and 650 mm long. Angle adjustment along the X and Y axes up to 45° allows for 9 types of cuts—straight, bevels, wedges, L-shapes, and internal cutouts. It is powered by an 18V battery with a brushless motor (includes a 2.0 Ah battery, charger, and 5 spare strings).
MINOVA W101 (7,299 PLN) is a stationary model with a 1,400 mm worktable (340 mm cutting width), designed for high-volume production and teams that cut large lengths of material every day. The foldable design with transport wheels allows a single person to move the machine between floors. Compatible with Makita/DeWalt/Milwaukee/Bosch batteries via adapters. Tool-free wire replacement minimizes downtime.
How do you choose a tool for cutting mineral wool?
The choice of tool depends on three factors: the work environment, the required precision, and the daily cutting volume. The table below compares all four MINOVA models available in the store.
| Model | Type | Price | Max. cutting depth / length | When to choose |
|---|---|---|---|---|
| MINOVA W01 | Hand knife | 769 PLN | 300 mm / manually | Light assembly work, start-up, small volume |
| MINOVA PRO W03 | Pro Hand Knife | 2,799 PLN | 350 mm / by hand | Everyday cutting on scaffolding, working at an angle |
| MINOVA W100 | Mobile string trimmer | 5,699 PLN | 270 mm / 650 mm | Precision cuts, attics, mobility |
| MINOVA W101 | Stationary string trimmer | 7,299 PLN | 340 mm / 1,400 mm | Mass production, large crews |
How does a cordless knife differ from a string trimmer?
The cordless knife saw (W01, W03) cuts using a reciprocating blade motion—quickly, easily, and anywhere—but requires a steady hand to achieve a straight edge. The string cutter (W100, W101) guides the material along the table using an angle guide, which guarantees dimensional accuracy of ±1–2 mm regardless of the operator’s experience. In practice, crews use both: the knife saw for routine cuts and the string saw at the bottom for formatting panels before installation.
What materials can be cut with MINOVA machines?
All 4 models cut rock wool and glass wool, PIR and PUR panels and insulation foams. String cutters (W100, W101) can also cut foam glass and EPS/XPS polystyrene. The blades (W01, W03) also work well with soft wood-fiber boards and acoustic panels.
Allowance for cutting mineral wool—how much should you add?
When installing insulation between rafters or in stud walls, it is assumed that 1–2 cm allowance to the side so that the panel fits „snugly" without gaps. The tight fit of the cross-section eliminates thermal bridges and increases the partition’s insulation efficiency. When cutting to exact specifications (e.g., roof wedges), no allowance is needed—the W100 or W101 wire saw allows you to set the angle and cut panels in batches with sufficient precision to eliminate gaps.
Safety Guidelines for Cutting Mineral Wool
Cutting mineral wool generates fiber dust that irritates the skin and respiratory tract. When working with a knife (W01, W03), wear an FFP2 or FFP3 dust mask, nitrile gloves, and safety goggles. String cutters (W100, W101) reduce dust to nearly zero thanks to their string-cutting mechanism—they do not require extensive protective gear, although gloves are always recommended. All MINOVA tools are CE certified.
Service and Warranty – What Sets pro-cut.pl Apart
All MINOVA tools available at pro-cut.pl are covered by A 12-month warranty valid in Poland – You do not need to send the equipment abroad. Pro-cut.pl has the following spare parts in stock: W01 replacement blades (30 cm, 49 zł), cutting strings for the W100/W101, and battery adapters. Orders are shipped within 24 hours on business days via DPD courier; shipping is free for orders of 1,000 PLN or more. A B2B section with discount tiers for wholesalers and contractors is also available.
FAQ
Frequently Asked Questions About Cutting Mineral Wool and Selecting MINOVA Tools.
What's the best tool for cutting mineral wool on a construction site?
The best tool for cutting mineral wool on scaffolding or in attics is MINOVA W01 Cordless Knife (769 PLN) or MINOVA PRO W03 (2,799 PLN). The W01 weighs 1.48 kg and reaches 3,000 strokes per minute—enough for most everyday cuts. The W03 adds a brushless motor, dual blades, and a 45–135° angle adjustment, which speeds up cuts in corners and around dormers.
How does the MINOVA W01 knife differ from the W03?
The MINOVA W01 costs 769 PLN, reaches 3,000 spm, weighs 1.48 kg with the battery, and features 150-mm and 300-mm blades with a 13-mm stroke. The MINOVA PRO W03 costs 2,799 PLN, has a brushless motor, a speed of 2,800 spm, dual 240-mm blades (separate wave and sawtooth blades), a 30-mm stroke, and an angle adjustment range of 45–135°. The W03 cuts deeper (up to 350 mm) and is designed for intensive professional use.
Does the MINOVA W100 string cutter cut PIR and PUR?
Yes. The MINOVA W100 cuts mineral wool (rock and glass), PIR and PUR boards, foam glass, and EPS/XPS polystyrene. The 0.75 mm vibration wire, operating at 1,500 strokes per minute, cuts through hard foams without melting the material—unlike thermal blades. The maximum cutting depth is 270 mm.
Do MINOVA tools work with my Makita/DeWalt batteries?
The MINOVA PRO W03 and W101 are compatible with Makita, DeWalt, Milwaukee, and Bosch batteries via adapters (included in the set or available separately). The MINOVA W01 and W100 come with their own dedicated 18V batteries, but if you own one of the mentioned battery systems, check the availability of an adapter for your specific model before purchasing.
How much does the service cost, and where can I get it done?
Warranty (12 months) and post-warranty service is provided by pro-cut.pl in Poland, at Gorliczyn 57B (37-200 Przeworsk). Do not send the equipment abroad. Replacement parts—blades, strings, battery adapters—are in stock and can be ordered on the store’s website.
How soon will I receive the tool I ordered?
Pro-cut.pl typically ships orders within 24 hours on business days via DPD courier. Shipping is free for orders of 1,000 PLN or more. B2B partners (wholesalers, building supply stores, contractors) can negotiate individual terms in the B2B Partnership tab or by calling 660-020-443.
Can mineral wool be cut at an angle?
Yes. The MINOVA PRO W03 saw adjusts the cutting angle within a range of 45–135°, which allows for manual miter cuts. The MINOVA W100 and W101 saws adjust the angle along the X and Y axes up to 45° each—allowing you to cut slope wedges, roof bevels, and notches for wall plates with millimeter-level repeatability.
