3D Foam Cutting Machine: Best CNC Hot Wire Foam Cutter

Best 3D foam cutting machine

Mammut CNC foam wire cutter

Mammut by Nettuno Sistemi is engineered for industrial foam fabricators, prototyping workshops, and architectural model shops seeking a high-throughput 3D foam cutting machine and precision CNC foam wire cutter capable of both large-format and fine-detail work.

Our best CNC foam wire cutter adapts seamlessly from rough industrial cuts to delicate 3D filigree, making it a versatile asset for any operation focused on efficiency, accuracy, and rapid changeover between jobs.

Professionelle Styroporschneidemaschine CNC Mammut-Cover

Our 3D foam cutting machine

Completely redesigned and renewed, Mammut inherits the glorious legacy of the Infinity model, integrating years of experience and success to offer unmatched performance and innovations.

Thanks to its modular structure, a must-have series of accessories, and the ability to vary the cutting wire length, this 3D foam cutting machine has revolutionized the working methods of all operators in the cutting and processing of expanded polystyrene (EPS), ensuring the maximum flexibility and capability for every processing need.

Processable materials

Expanded polystyrene

Extruded polystyrene

Graphite polystyrene

Hot wire foam cutting area

Representing advanced capabilities in foam fabrication, the Mammut is a prime example of a large-format 3D foam cutting machine. Utilizing precise hot wire cutting foam technology, this type of CNC hot wire cutter offers a substantial and versatile work envelope, with typical dimensions like 3020 mm (X), 1250 mm (Y), and a Z-axis extendable from 1300 mm up to 4500 mm.

Features such as a modular structure sliding on high-precision, floor-anchored guides are common in high-end models like the Mammut, allowing for rapid extension to accurately process very long foam blocks (e.g., up to 4.5 meters).

This makes such a hot wire foam cutter exceptionally suitable for demanding industrial projects requiring significant flexibility, large-scale capacity, and unwavering cutting precision.

Mammut is versatile

Unlimited wire inclination

5 independent axes hot wire foam cutter

3D foam cutting machine cnc hot wire mammut

The Mammut isn’t limited by conventional cutting angles. Featuring 5 independent axes of control and equipped with Nettuno’s proprietary automatic wire tensioning system, it allows for virtually unlimited wire inclination, reaching the maximum possible diagonal across the cutting area.

This advanced capability empowers you to execute extremely complex cuts, intricate shapes, and sharp angles that are simply unattainable with standard machinery, opening up new possibilities for your designs.

Smart temperature regulation

A microprocessor-based current regulation system ensures precise thermal stability of the foam cutting wire. This closed-loop control actively compensates for input voltage variations and dynamic changes in effective wire resistance (resulting from tension and length variations), thereby maintaining consistent cutting energy delivery and optimal operational parameters.

3D hot wire foam cutter transmission

The system’s actuation relies on brushless motors featuring absolute encoders for closed-loop position control. Linear motion is achieved through a configuration of high-stiffness linear guides, low-friction carriages, and a precision ball screw drive, delivering both smooth travel and high repeatability during foam cutting operations.

Pneumatic work-holding tabletop

The CNC 3D foam cutting machine utilizes four steel/marble composite sliding tabletops integrating a pneumatic locking system for secure work-holding.

Motion along the primary axis is facilitated by linear guides with recirculating ball bearings. Integrated end-rollers are included to improve the efficiency of loading expanded polystyrene blocks onto the support platform.

Where our hot wire foam cutting machine gives its best

Mammut is our best solution for professionals, companies and privates who want to upgrade their foam cutting skills and go the next level. Its best fields of application are:

Remote control

With Mammut, you’ve got the handy handheld keypad always within reach: perform jog, play & pause, stop, speed adjustment, lathe rotation, and axis readouts while you keep a close eye on every cut.

Nettuno Software

As a powerhouse for high-volume production runs, the Mammut is equipped with our in-house Nettuno software, engineered to handle substantial workloads across every industry.
By adding its exclusive accessories, you unlock new features crafted just for it: greater power, enhanced precision, and fully customizable workflows.

Mammut workstation

Mammut comes with a professional workstation featuring an integrated HMI, designed to provide sturdy support and a secure spot for your PC so that you can work comfortably right next to the machine.

Every component is selected by Dell to deliver top-tier performance and rock-solid reliability, ensuring uninterrupted operation in any environment.

Level up with our professional accessories

Technical features

HARDWARE
Overall dimensions
6500 x 3500 x 2000 mm (varies depending on the machine configuration)
Cutting area
X 3020 mm | Y 1250 mm | Z 1300 > 4500 mm
Structure
CNC milled steel structure
Maximum axes speed
25 m/min
Movement accuracy
+/- 0.03 mm
Adjustable wire length
Automatic 1300 > 4500 mm
Cutting wire diameter Ø
0,25 – 0,50 mm
Type of cutting wire
Titanium
Power supply
220/230V 50/60Hz
Single wire absorption
2 kW
Compressed air
4 bar
Wire tensioning
Automatic
Wire temperature regulation
Automatic by microprocessor
Motors
Brushless with absolute encoder
Number of axes
5 independent
X axis transmission
Gear racks and ball bearing guides
Y axis transmission
Bearing screws and ball bearing guides
Table top
4 Marble sliding table tops with pneumatic locking on guides
Weight
1200 kg
Operator console
Included
Handheld keypad
Included
Dell HMI
Included
Sliding rollers for EPS block
Included
Vertical turntable (1-3)
Optional
Main rotating table + side table
Optional
CNC Router
Optional
Horizontal lathe
Optional
Carver
Optional
Clevel
Optional
Extra sliding tables (1-3)
Optional
Z axis extension up to 6000 mm
Optional
Multiple wire harp
Optional
Multiple wire harp with automatic rotation
Optional

More CNC hot wire foam cutting machines

Made in Italy quality
Mammut

The Nettuno team provides its multilingual technicians to support every Mammut owner, from installation through post-training assistance.

Craftsmanship in construction, unmatched durability, and the Nettuno proprietary software make the Mammut the highest-performing CNC hot wire foam cutting machine on the market.

Video

Mammut in action.

Machine overview.

Turning and milling.

Styrofoam cutting.

Vertical turntable.

Horizontal lathe.

CNC milling router.

Main rotating table with multiple wire harp combo.

Software - Wedges in action.

Sector

Windows & Doors.

Expanded polystyrene is one of the most challenging materials to cut precisely due to its production, which doesn’t always ensure uniform homogeneity within the blocks. This variability can compromise the final result, especially in applications requiring absolute precision.

Thanks to the combination of our Clevel accessory, which dynamically adjusts cutting speed based on the material’s density, and next-generation traction technologies, we can guarantee flawless results on any type of EPS or XPS, including recycled materials.

In the window and door industry, precision and customization are essential to meet requirements for thermal and acoustic insulation as well as design. Our machines provide tailored solutions for the production of components such as roller shutter boxes, insulating panels, and other elements that integrate seamlessly with window and door systems.

Thanks to the workability and lightness of polystyrene, our systems enhance buildings’ energy efficiency, reduce thermal dispersion, and dampen external noise, delivering excellent performance and details that meet the highest expectations.

Recommended.

Sector

Structural & Decorative Building.

Construction requires solutions that combine functionality, aesthetics, and practicality. Our machines, designed to work with expanded, extruded, and graphite polystyrene, provide essential support for creating both decorative and structural elements in the construction sector.

For structural construction, our tools enable the production of lightweight and precise void forms, molds, and shapes for concrete casting, ideal for complex projects that demand impeccable technical details. On the decorative front, it is possible to create cornices, rosettes, columns, capitals, moldings, and other architectural details that add elegance and style to any building, whether modern or classical.

Recommended.

Sector

Thermal and Acoustic Insulation.

In the field of thermal and acoustic insulation, precision and material quality are essential to ensure top performance. Our machines, designed to process expanded, extruded, and graphite polystyrene, are ideal for creating custom insulating panels with excellent thermal and acoustic resistance properties.

For both residential and industrial applications, our CNC machines enable the production of high-efficiency solutions, such as panels for insulating walls, roofs, and floors, perfectly designed to reduce heat loss and improve the acoustic comfort of spaces.

Recommended.

Sector

Graphics & 3D Signage.

Creativity meets precision in the world of 3D signage and billboards. Our machines, designed to work with expanded, extruded, and graphite polystyrene, are the ideal tool to bring three-dimensional letters, logos, and scenic decorations to life that grab attention.

Whether you’re making lightweight signs that are easy to install or creating customized graphic elements for fairs and events, you can rely on clean cuts and perfectly smooth surfaces, ready to be painted or coated. The versatility of our solutions allows you to meet even the most complex requests, delivering results that combine aesthetics and functionality.

Recommended.

Sector

Scenography.

Scenic design is the heart of any performance, capable of transforming a neutral space into a unique and engaging world. Our machines, specialized in processing expanded, extruded, and graphite polystyrene, allow for the creation of custom-made scenic elements, perfect for theaters, film sets, events, and artistic installations.

With the precision of our machines, it is possible to create monumental architectures, detailed props, realistic textures, and three-dimensional settings. Thanks to the lightweight nature of polystyrene, the structures are easy to assemble, disassemble, and move, ensuring flexibility even for touring productions.

Recommended.

Sector

Amusement Parks.

In the amusement parks field, imagination knows no bounds, and every attraction must offer a unique experience. Our machines, specialized in processing expanded, extruded, and graphite polystyrene, are ideal for creating extraordinary scenography, fun structures, and original decorations that are lightweight yet highly detailed.

From roller coasters to themed rides and entertainment areas, we can create custom elements that inspire imagination and fun. Thanks to the precision of our machines, it is possible to produce complex 3D environments, mascots, sculptures, and settings that captivate and engage the audience.

Every detail, from finishing to decoration, is designed to provide safe, durable, and visually spectacular solutions, creating environments that are truly magical and memorable.

Recommended.

Sector

Visual communication.

In the visual communication field, every detail must capture attention and convey a clear and impactful message. Our machines, specialized in processing expanded, extruded, and graphite polystyrene, offer endless possibilities to create unique three-dimensional elements that enhance the aesthetic and communicative value of any project.

Create embossed lettering, logos, scenic decorations, and visual structures for events, stores, or advertising campaigns. Precisely crafted polystyrene allows you to create bold, lightweight, and easy-to-install shapes, perfect for highlighting your brand or creating memorable settings.

With tailored solutions, we transform your ideas into visual tools that captivate the eye and powerfully communicate your identity.

Recommended.

Sector

Indoor & Outdoor Furniture.

Lightness, design, and customization are the key words when it comes to creating furniture from expanded, extruded, and graphite polystyrene. Our machines provide the precision needed to produce unique furnishings, perfect for both indoor spaces and outdoor settings.

You can design seating, tables, decorative structures, or furniture accessories with innovative shapes and customized details. Polystyrene furniture is lightweight, easy to transport, and ready to be finished with durable materials or coated with effects that mimic wood, metal, or stone.

Whether for temporary solutions, such as trade show setups or events, or for creative and personalized furnishings, our technology allows you to bring every idea to life with precision and versatility.

Recommended.

Sector

Exhibition Stands.

Exhibition stands are the heart of every event, capable of attracting attention and conveying the brand’s value. Our machines, specialized in processing expanded, extruded, and graphite polystyrene, provide perfect solutions for creating lightweight, customized, and highly visible structures.

Whether for trade fairs, exhibitions, or events, you can design exhibition stands with innovative shapes and meticulously detailed features. Our machines allow the creation of walls, columns, furnishings, and decorations that perfectly match the required design and visibility while reducing transportation costs thanks to the material’s lightness.

With tailored solutions, every exhibition project becomes an opportunity to stand out and leave a lasting impression on the audience.

Recommended.

Sector

Packaging.

Packaging is essential to protect products during transportation and storage, ensuring safety and aesthetics. Our machines, specialized in processing expanded, extruded, and graphite polystyrene, enable the creation of customized packaging solutions tailored to every need.

From cutting shaped protections for delicate items such as appliances or electronic components to creating lightweight yet durable inserts and fillers, our technologies ensure millimeter precision. Additionally, polystyrene is ideal for reusable and easily recyclable packaging, contributing to a more sustainable material management approach.

With our solutions, protect your products with secure, functional packaging designed to fit perfectly around any shape and size.

Recommended.

CNC mill + 3D scanner

Create customised sculptures.

Imagine the possibility of combining the power of 3D scanning technology with the precision of a CNC Milling Machine. This synergy allows you to turn every project into a masterpiece, regardless of its complexity.

With our range of CNC machines and the addition of the 3D Scanner, you can faithfully reproduce every detail of the original model and move directly to processing, achieving impeccable results.

3d bust scan


With Mammut, our most powerful and customizable CNC machine, the combination with the 4-Axis CNC Milling Accessory enables 360-degree machining. This solution is perfect for complex sculptures, three-dimensional models, and artistic creations that demand maximum precision even in the most intricate geometries. The option to integrate the 3D Scanner adds an extra level of efficiency and accuracy, allowing you to capture the shapes and surfaces of real objects for seamless processing.

Common Applications:

  • Creation of statues, anatomical models, artistic reproductions
  • Design of customized components or 3D prototypes
  • Architectural or engineering models with high visual impact

Ercolina Plus, our 3-Axis CNC Milling Machine, is ideal for tasks that require precision on flat surfaces, such as bas-reliefs, engravings, and decorative details. With the 3D Scanner, you can transform physical models into digital works to be processed with extraordinary definition. It is the perfect choice for those seeking flawless results on materials such as expanded and extruded polystyrene, wood, plexiglass, and non-ferrous metals.

Common applications:

  • Creation of decorative panels or furniture elements
  • Production of functional prototypes with defined details
  • Manufacturing of plaques or logos engraved with millimetric precision

Why should you choose this combination?

This combination of technologies offers you numerous advantages: from the highest precision in reproducing details to the ability to optimize processing times, improving the overall efficiency of the production process. Working with a 3D Scanner paired with a CNC Milling Machine means taking your creativity and productivity to a new level, eliminating margins of error and consistently achieving perfect and customized results.

3d scanner

Horizontal lathe

Cuts polystyrene at 360° in length.

The horizontal lathe is an accessory for the Mammut CNC machine, designed for complete 360° processing of polystyrene (EPS, XPS) blocks. Unlike the vertical turntable, this horizontal configuration allows for processing the material along the entire length of the block, thanks to the presence of a tailstock that ensures continuous operation without interruptions.

The horizontal lathe enables highly precise and uniform processing, both on symmetrical and asymmetrical shapes, without the need for manual adjustments to the block. The automatic rotation and control through the Nettuno Software ensure optimal management of speed and position during processing, guaranteeing that each shape is created with the utmost precision.

The machine operates in fully automatic mode, with continuous adjustment of position and speed, allowing turning operations on both symmetrical and irregular shapes. It is compatible with various configurations and can be easily integrated into CNC workflows, optimizing production times and improving operational efficiency.
With the horizontal lathe, high-precision operations can be performed on a wide range of geometries and sizes, including cylinders, spheres, columns, and complex 3D shapes, always ensuring a high-quality final result.

Here are some examples of processing.​

Features

Technical data.

Cutting area X
2450 mm
Cutting area Y
1100 mm
Software
Management window
Power consumption
400 watt

For a complete experience

Combine with:

4 axes milling router

Create amazing custom sculptures in 360°. Use the rotation of the horizontal lathe and the 4-axis movement of the milling machine to carry out the operations.

Carver

The carver uses a rigid wire that can be manually shaped according to your needs, allowing you to create cavities within pre-shaped forms or produce unique and customized shapes.

4-axis milling router

Creates ultra-defined sculptures.

The 4-axis CNC milling machine offers extraordinary versatility, allowing for both flat and combined operations with the horizontal lathe. Thanks to the rotation of the lathe and simultaneous movement across 4 axes, it is possible to perform 360° machining, ensuring precision and flawless detail even in the most complex shapes.

The automatic system developed by Nettuno allows for the milling router to be automatically integrated onto the wire machine, with simple and intuitive controls managed through the dedicated software.

Thanks to this solution, the operator can rough-cut the material using the hot wire turning process and finish the final details with the precision of the CNC milling machine. This combination optimizes machining times, offering a significant advantage in the precise creation of complex 3D shapes.

Roughing. Milling.

Before After
Before After Styroporbüsten mit Fräser bearbeitetBearbeitet Styroporbüsten mit Fräser

Combine the precision of the CNC milling router with the versatility of the 3D scanner to achieve flawless results. This synergy allows for the reproduction of complex and detailed shapes, transitioning smoothly from model scanning to its processing with speed and efficiency.

Features

Technical data.

Work area on table
X=3000 mm Y=1600 mm Z=1100 mm
Work area on lathe
X=2300 mm Y=1600 mm Z=550 mm
Software
Management window
Power consumption
2 kW

For a complete experience

Combine with:

Horizontal lathe

Milling complex full-round sculptures. Using the horizontal lathe, shapes can be milled on all sides, allowing for the creation of fully three-dimensional sculptures.

Vertical turntable

Cut polystyrene at 360°.

The vertical turntable is an accessory for the Mammut CNC machine, designed to work with expanded polystyrene (EPS, XPS) blocks positioned vertically, allowing 360° processing across the entire surface of the material. This configuration enables the creation of turning and complex 3D shapes, ideal for applications requiring high precision and detailed work.

The movement system of the vertical turntable is controlled by the Nettuno Software, allowing for extremely precise adjustments of the rotation speed and material processing, ensuring uniform results without defects. The turntable is equipped with a robust support to maintain block stability during processing, minimizing vibrations and inaccuracies.

The machine operates in a fully automatic mode, with continuous adjustment of position and speed, enabling turning operations for both symmetrical and asymmetrical shapes. It is compatible with different configurations and can be easily integrated into the CNC workflow, optimizing production times and increasing operational efficiency.
With the vertical turntable, you can achieve precise processing on a wide range of geometries and sizes, including cylinders, spheres, columns, and complex 3D shapes, all while maintaining high-quality final results.

Here are some examples of processing.

For a complete experience

Combine with:

4 axes milling router

Create amazing custom sculptures in 360°. Use the rotation of the horizontal lathe and the 4-axis movement of the milling machine to carry out the operations.

Carver

The carver uses a rigid wire that can be manually shaped according to your needs, allowing you to create cavities within pre-shaped forms or produce unique and customized shapes.

Carver

Create grooves and engravings.

The carver is an accessory for the Mammut CNC machine, designed to create cavities and customized shapes in blocks of polystyrene (EPS, XPS) using a manually shapeable wire. This accessory allows precise material processing, creating unique shapes directly inside pre-shaped blocks or on fully customized geometries.The manual movement of the rigid wire, which can be easily shaped to specific needs, enables the execution of fine details and complex engravings. The carver is a versatile solution for tasks requiring high flexibility and precision in 3D shapes.
When combined with the Nettuno Software, optimal results can be achieved with precise wire management to achieve the desired depth and detail. The control of wire speed and position minimizes vibrations and inaccuracies, ensuring uniform and detailed processing across the material’s entire surface.The Mammut carver is ideal for applications requiring the creation of irregular shapes, such as sculptures, characters, or complex cavities, which cannot be easily achieved using traditional machining methods.

For a complete experience

Combine with:

Vertical turntable

Used for 360° cutting of 3D shapes in polystyrene, whether they are symmetric or asymmetric, irregular, spheres, columns, characters, and figures.

Horizontal lathe

The horizontal lathe, unlike the vertical one, is equipped with a tailstock that allows the processing of the polystyrene block at 360° along the entire length of the machine.

Main rotating table

Cut without moving the block.

This innovative and exclusive system allows the rotation of a full block of polystyrene up to 3000 mm in length and enables cuts on all four sides of the block.

Discover the ability to make precise cuts on blocks or sheets with customizable angles, such as 45°, 60°, and others, for always-perfect results. The automatic rotation of the block enables cuts on multiple sides, ensuring maximum precision and versatility in your work. Additionally, thanks to the rotating table with lathe function, you can easily create large-sized shapes.

The automatic rotation of the main machine table is fully controlled through the software interface. This system provides significant advantages in the production of shapes and profiles that require cuts and cavities on multiple sides, thereby optimizing both efficiency and precision in the processing.

The accessory includes an additional support table that can be positioned according to production requirements.

For a complete experience

Combine with:

Multiple wire harp

It can cut polystyrene blocks with more than one wire simultaneously, processing multiple pieces of the same shape in a single movement.

Multiple wire harp

Cut more than one piece at a time.

The multi-wire harp allows cutting the polystyrene block simultaneously with multiple wires, enabling series production of identical elements in a single pass of the harp across the material.

The multi-wire harp allows installation of up to a maximum of 20 wires. During each operation, it is possible to add or remove wires and distribute them at the desired distance.

The rotation of the multi-wire harp is manual and is designed to work in vertical, horizontal, and diagonal positions. This accessory is essential for those involved in producing large quantities of standardized products.

Wires adjustment.

The distance between the wires is manually adjusted using a metric scale, allowing for a simple and quick setup.This system allows the harp to be adapted to the specific needs of each operation, optimizing the production process.

Control panel.

This panel allows for intuitive management of the wire temperature, adjustable via an external potentiometer to ensure maximum precision during cutting. It is possible to monitor the temperature in real-time through a convenient integrated display, ensuring full control of the process. Functions such as quick on/off and precise control ensure simple, safe, and highly efficient operation.

Optional

Multiple wire harp with automatic rotation.

The automated system enables precise rotation of the Multiple Wire Harp from 0° to 90°, eliminating the need for manual adjustments. Through an intuitive software interface, the operator can accurately select the desired angle.

The various harp inclinations, even without altering the wire positions, allow for adjustments in panel thickness and cutting stroke length along the X-axis, providing unparalleled flexibility for any production requirement.

Features

Technical data.

Maximum number of wires
20 wires
Maximum wire length
3100 mm | 3500 mm with optional main rotating table
Wire cutting diameter
0,30 mm Titanium
Software
Management window
Wire tension
Springs
Wires absorption
Maximum power 8 kW
Wire temperature adjustment
External potentiometer

For a complete experience

Combine with:

Main rotating table

The rotation occurs automatically and is managed by the software interface. It allows cuts along all four sides of the polystyrene block without the need for manual rotation.

New accessory

Tangent carver.

We have developed a new attachment that takes polystyrene processing to the next level. The Excavator with Tangent is designed to be mounted directly on the Mammut cnc machine axis, enabling internal excavation operations that transform the way this versatile material is processed.

Unlike our previous excavator, which required the use of a lathe to obtain the desired templates, the new model allows for internal carving with precision and without additional steps.

Hot wire is perfectly adapted to the needs of cutting, shaping extruded and expanded polystyrene to create 3D shapes of great aesthetic and functional impact.

Thanks to the tangent configuration, a range of possibilities opens up: from artistic and decorative applications, where the contrast between smooth outer surfaces and complex interiors creates striking visual effects, to industrial solutions that require prototyping with sophisticated geometries.

Extra tabletops

Even more sturdy.

The base configuration includes 4 sturdy support tables with pneumatic locking on guides, carefully designed to ensure maximum stability and precision during the cutting process.

However, recognizing the importance of tailoring our product to specific needs, we offer the possibility of adding from 1 to 3 additional support tables.

These tables, made of milled steel with a marble surface, are designed to provide additional and customized support, allowing greater flexibility in the arrangement of the material to be cut.