Cutters for mineral wool and PIR/PUR foam

Cutters for mineral wool and PIR/PUR foam

The Minova W100 and W101 cutters cut mineral wool (rock and glass), PIR and PUR foams, foam glass, and EPS/XPS polystyrene — 18V cordless models with a vibrating cutting string (1,500 strokes/min), cordless, dust-free, and with clean-cut edges. Price starting at 5,699 PLN, ships within 24 hours.

Both models use serrated string technology—instead of a hot wire or circular saw blade, the string performs a rapid back-and-forth motion that cuts through insulation smoothly, without melting the material or creating clouds of dust. This solution cannot be replaced by a thermal knife or a traditional reciprocating saw—especially when working with rock wool and glass wool, which are heat-resistant.

As an authorized Minova distributor in Poland, Pro-Cut offers 12-month warranty Performed in Poland (without sending the unit abroad), full access to replacement parts, and free DPD shipping for all cutters.

What can the Minova mineral wool cutter cut?

The Minova W100 and W101 cutters are compatible with all common insulation materials used in construction and the finishing of roofs, facades, and ceilings.

• Rock Wool and Glass Wool — to 270 mm thickness (W100) or any width (W101, cut length 1,400 mm)
• PIR and PUR Panels (with and without facings) — rigid polyurethane foams cut cleanly without chipping the edges
• Foam Glass — a material that is difficult to cut with hand saws, processed by both models
• EPS and XPS Styrofoam — without the smoke and melted edges characteristic of thermal cutting
• Technical and Acoustic Foams

When should you choose Minova over a thermal knife?

A heat gun works well on Styrofoam, but not mineral wool — The fibers do not melt when exposed to heat. The Minova string cutter is the only battery-powered tool that can cut rock wool, glass wool, PIR, PUR, and polystyrene foam all at once in a single set. The string mechanism works on all these materials without needing to change the cutting element.

Minova W100 or W101 — which model should you choose?

The Minova W100 (5,699 PLN) is a portable wire cutter designed for standard tasks on scaffolding and in attics—it’s lightweight (17.5 kg), folds into a bag, and has a maximum cutting height of 270 mm. The Minova W101 (7,299 PLN) is a stationary cutting center with a large worktable, X- and Y-axis adjustments, a cutting length of 1,400 mm, and transport wheels—designed for crews performing complex cuts such as bevels, wedges, and slots.

Maximum cutting thickness for mineral wool

The Minova W100 cuts mineral wool and PIR/PUR foam to 270 mm thicknesses with a cutting length of 650 mm. The Minova W101 supports cutting widths up to 340 mm with a cutting length of 1,400 mm—which allows for working with non-standard-sized panels and thick layers of insulation for inverted roofs or flat roofs.

Maximum cutting thickness is a key factor when selecting a model. Standard mineral wool boards for wall insulation are 10–20 cm thick—the W100 can handle them. For thick insulation systems over 20 cm, technical insulation, or angled cuts with a bevel, the W101 offers a greater working margin.

Maximum cutting thickness of mineral fiber insulation boards

The Minova W100 cuts mineral fiber insulation boards for 270 mm thickness while maintaining full cutting precision. The Minova W101 is not limited to a fixed „depth”—its maximum cutting width is 340 mm, and the cut is 1400 mm, which allows for the machining of large workpieces in a single pass.

Both models support bevel cutting in the range of 0–45° on both axes, which allows for precise bevel cuts under the ridge board, in corners, and along roof structure components. Bevel cutting reduces the effective depth by approximately 30% compared to straight cutting—for W100, this must be taken into account when cutting insulation thicker than 190 mm at an angle.

Maximum cut length of the saw

The Minova W100 cuts to 650 mm in length, which corresponds to the standard width of insulation panels (60 cm). The Minova W101 has a cutting length of 1400 mm — This allows you to cut entire sheets without having to rotate the material or reposition it.

A longer cut directly translates to greater work efficiency: fewer adjustments, fewer movements, and more consistent dimensions. During intensive work by a team of several people, where the precision of cutting roof slopes and bevels is critical to the quality of thermal insulation, the W101 eliminates errors resulting from manually guiding the tool.

Weight and Specifications of the Devices

The Minova W100 weighs 17.5 kg — The aluminum frame (100%, corrosion-resistant) makes it easy for one person to carry the machine up a ladder or scaffolding. The Minova W101 weighs approx. 25 kg, but it is equipped with built-in transport wheels and a foldable frame, which allows a single person to move the device between floors without having to disassemble it.

The difference in weight between the models is mainly due to the W101’s longer worktable and sturdier construction. When making your selection, consider whether the unit will be used primarily on outdoor scaffolding (W100—lighter and foldable into a bag) or as a stationary cutting center on a construction site (W101).

Set Contents — What's in the Box?

Minova W100 The set includes: a string trimmer, an 18V battery (2.0 Ah), a wall charger, 5 spare cutting strings, a durable carrying case, and an instruction manual.

Minova W101 The set includes: a power cutter, an 18V battery, a wall charger, a spare serrated cutting line, and an instruction manual. The battery is compatible with Makita, DeWalt, Milwaukee, and Bosch tools via a dedicated adapter.

Power Source — 18V Cordless Battery

Both Minova models are battery-powered 18V with a brushless motor. The cordless power supply allows you to work on tall scaffolding, in attics without outlets, in unfinished spaces, and outside the building—without having to unroll extension cords or trip over cables.

A brushless motor is more energy-efficient than brushed motors, does not overheat during continuous operation, and wears out much more slowly. This translates to longer runtime on a single battery charge and lower maintenance costs in the long run.

The W101 is compatible with Makita, DeWalt, Milwaukee, and Bosch batteries via an adapter—so if your team already has batteries from these brands, there’s no need to buy new ones.

What accessories are available for Minova cutters?

As an authorized Minova distributor, Pro-Cut ensures constant access to replacement parts and consumables from its Polish warehouse—without having to wait for delivery from abroad. Available accessories include replacement cutting strings (which can be changed without tools on construction sites), 18V batteries, chargers, and structural components. Once you purchase the device, you can be sure that replacement parts will be available for the entire lifespan of the equipment.

FAQ — Frequently Asked Questions About Mineral Wool Cutters

What's the best tool for cutting mineral wool?

Mineral wool (rock wool and glass wool) is best cut with a wire saw equipped with a mechanically vibrating wire—such as the Minova W100 or W101. A serrated wire (0.75 mm) moving at a speed of 1,500 strokes per minute cuts through mineral fibers smoothly, without fraying the edges or creating clouds of dust. Thermal blades not suitable for wool — Mineral fibers do not melt when exposed to heat. Traditional reciprocating saws can cut through insulation, but they generate a lot of dust and leave frayed edges.

What is the maximum thickness of mineral wool that the Minova cutter can cut?

The Minova W100 cuts mineral wool to 270 mm thickness (cut length 650 mm). The Minova W101 supports a cutting width of up to 340 mm for a cut length of 1400 mm. Both models cut wool at angles ranging from 0 to 45° along the X and Y axes—the effective thickness is slightly less when cutting at an angle.

Does the Minova cutter cut PIR and PUR foam?

Yes. Both the Minova W100 and W101 models cut hard PIR and PUR panels—with or without facing. The string mechanism works better with PIR/PUR than a jigsaw, which crumbles the edges of hard foams. Minova cuts PIR and PUR smoothly, maintaining the cut geometry necessary for a tight panel joint.

What are the best models of mineral wool cutters?

For mobile insulation crews — Minova W100 (5,699 PLN): battery-powered, 17.5 kg, folds into a bag, max. 270 mm. For crews performing complex cuts on larger construction sites — Minova W101 (7,299 PLN): 1,400 mm cutting length, X/Y adjustment, transport wheels. Both models feature an 18V brushless motor and come with a 12-month warranty valid in Poland.

How do you maintain a mineral wool cutter?

The cutting string is the only consumable part that requires regular replacement—the W100 features tool-free replacement, while the W101 allows for replacement on-site. Pro-Cut keeps replacement strings in stock at its Polish warehouse. The brushless motor does not require brush maintenance—the main maintenance task is cleaning the guide rails and work table after working with wool. The aluminum frame on both models does not corrode, which reduces maintenance costs when working outdoors.

How much do the warranty and service cost?

The warranty for Minova cutters is 12 months and is carried out by Pro-Cut in Poland—without having to send the equipment abroad. Post-warranty service and all replacement parts are available at the headquarters in Przeworsk or through the online store. A replacement tool can be ordered while the service is being performed.

Is it safe to use a string trimmer?

Yes. The Minova wire-cut mechanism is safer than circular saws—there is no exposed cutting blade, and the risk of kickback is minimal. The wire is shielded by the worktable’s guide rails. When cutting mineral wool, we recommend wearing gloves and a dust mask (although the Minova generates significantly less dust than a hand saw). Both models are CE-certified.

How soon will I receive my order?

Orders placed by 2:00 p.m. on Pro-Cut business days are shipped the same day—delivery via DPD courier within 1–2 business days throughout Poland. Shipping for the cutters is free (for orders over 1,000 PLN). If you have any questions, please call 660-020-443 or email procutpl@gmail.com.