Sounds good because it doesn’t sound good!
Take advantage of the outstanding damping performance of FB MINERALGUSS for your highly dynamic precision machines. Disturbing vibrations are greatly reduced so that your machines can work even faster and more precisely.
Would you like a sound sample? Order our sound sample free of charge (handpiece) and experience the advantages of vibration-damping mineral cast technology for yourself.
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Bed rest with numerous applications
- Metal and woodworking machines
- Textile machinery
- Packaging machines
- Pick & place applications
- Graphic machines
- Optical industry
- Laser industry
- Electrical industry
- Measurement technology
- Solar technology
- Medical technology
Vibration-damping
Shape-free
Cost efficient
- Maximum machine precision with short processing times
- Design on the outside – technology on the inside
- Economical for large and small series

FB MINERALGUSS revolutionizes mineral casting technology
FB MINERALGUSS flows into the formwork by itself like honey
Your advantage in mechanical engineering: mineral casting beds can be moulded more easily and therefore more economically than before.
Deaerates and compacts itself
In the cold casting process, the innovative high-performance material FB MINERALGUSS is used in Swiss production to form complex yet solid components for the machine industry. FB MINERALGUSS stands for a cement-bonded mineral casting, developed through many years of research in the nano range by technology partner and binder manufacturer Dyckerhoff. In contrast to epoxy resin-bonded mineral casting, the mould does not need to be vibrated during filling so that the material is distributed and compacted; FB MINERALGUSS flows, deaerates and compacts itself. Thanks to the good workability, inexpensive and quickly procurable timber or plastic formwork is often sufficient; Steel can only be used if the formwork is extremely durable and precise
High-performance material for technology and nature
Recipe for sustainable high-performance material in modern high-tech mechanical engineering
Sand, premium cement of the latest generation, water and small quantities of two liquid additives for better processing;
Optimized for maximum packing density
The cast stone is optimized for maximum packing density using nanotechnology, which can be seen by the smooth surface. It can be completely coloured through or painted afterwards;
Environmentally friendly processing
A project funded by the German Federal Ministry of Education and Research has shown that FB MINERALGUSS leaves a significantly more favorable ecological footprint than epoxy resin-bonded mineral casting. No solvents are required for processing, as water is sufficient for cleaning the tools
Climate protection and problem-free disposal of old machines
Less energy is consumed and lessCO2 is emitted during the production of FB MINERALGUSS than with epoxy resin-bonded mineral casting. Thanks to its purely mineral composition, FB MINERALGUSS can be reused in crushed form as a bulk material in road construction or as aggregate in recycled concrete.
A comparison of different materials for machine beds
FB MINERALGUSS (zementgebundener Mineralguss) | Epoxidharz-gebundener Mineralguss | Granit | Grauguss (Gusseisen mit Lamellengrafit) | ||
---|---|---|---|---|---|
Dichte | kg/dm³ | 2.4–2.5 | 2.0 – 2.5 | 2.5 – 3.0 | 7.1 – 7.3 |
Druckfestigkeit | N/mm² | 125–135 | 90 – 150 | 160 – 240 | 600 – 960 |
Biegezugfestigkeit | N/mm² | 18–20 | 15 – 35 | 10 – 30 | 150 – 400 |
E-Modul | kN/mm² | 45–50 | 20 – 45 | 40 – 60 | 80 – 140 |
Längenausdehnungskoeffizient | μm/(m·K) | 10–11 | 10 – 20 | 5 – 11 | 10 – 13 |
Wärmeleitfähigkeit | W/(m·K) | 2.8–3.2 | 1.5 – 2.0 | 1.7 – 3.5 | 47 – 53 |
Spezifische Wärmekapazität | J/(kg·K) | 750 – 1’000 | 750 – 1’000 | 750 – 1’000 | 460 – 540 |
Precision to the power of three
Geometric precision
We use precise formwork to cast raw bodies with a surface accuracy in the tenth of a millimeter range. Tempering the hardened material results in excellent dimensional stability Progressive setting processes of the cement and the associated shrinkage deformations are stopped by tempering; Accuracies with flatness in the μm range are achieved by reworking the hardened blanks; Either stone grinders bring contact surfaces to size so that add-on parts such as steel rails can then be precisely attached, or metalworkers machine cast-in steel components directly to the desired final dimensions;

FB MINERALGUSS cast-in steel component with metalworking tool
The highest precision is often required at contact points between the machine bed and add-on parts, which requires steel or stone finishing of the raw body.

Vibration behavior in comparison
The graph shows that FB MINERALGUSS is less susceptible to excitation than grey cast iron and dampens vibrations much more quickly.
Dynamic precision
Disturbing vibrations from machine movements must be effectively damped by the machine bed. The damping performance of FB MINERALGUSS is comparable to natural stone or epoxy resin-bonded mineral casting – up to ten times better than gray cast iron.
Conclusion: Maximum precision combined with fast machining speed, noise reduction and extended tool life.
Thermal precision
FB MINERALGUSS reacts much more slowly to thermal energy than gray cast iron due to its high specific heat capacity and low thermal conductivity. Inaccuracies caused by room temperature fluctuations are significantly smaller due to the material-related thermal inertia; In order to actively control thermal deformations from process heat as well as external and internal heat sources, heating or cooling lines can be moulded into the solid machine bed;

Temperature stability
Thanks to the thermal inertia of FB MINERALGUSS, fluctuating room temperatures are only passed on to the machine to a very limited extent.
Cost savings in mould making
Engineering and design in harmony
Good news for machine manufacturers
Your brand gains recognition value. This is thanks to an attractive, unique design. Expand the technical form into a consistent brand design and strengthen your position in the market. We advise you on the creative freedom and realise the potential of the self-compacting flowing compound in production with intelligent formwork construction;
Artificial stone with reproducible properties
The purely mineral casting compound hardens at ambient temperature without the addition of energy to form artificial stone with reproducible mechanical and physical properties. Just as in natural stone technology, smaller individual parts can be bonded together to form a larger whole for very complicated shapes;
Economical even for small batches and heavy machine beds
Thanks to the lower fixed costs for mold making, the advantages of mineral casting technology can be used economically even for small batches. The material costs for FB MINERALGUSS are lower than for epoxy resin-bonded mineral casting. This cost advantage is particularly evident in the unit price of large and heavy machine beds; In addition, unlike steel and oil, this inexpensive material is not affected by fluctuations in world market prices;
Technology neatly embedded
In the cold casting compound, you can integrate components (rails, anchor plates, threaded sleeves, transport anchors, hydraulic lines, earthing, cables, plastic conduits) compactly and attractively into the machine bed. The frost-resistant mineral casting is non-combustible and therefore resistant to flying sparks; Therefore, steel parts can also be welded onto the hardened machine bed on cast-in anchor plates at a later date;
A strong foundation
Maximum production – minimum interfaces
The following applies not only to people, but also to machines: a good bed is the basis for a successful day’s work. We have therefore set ourselves the challenging task of developing and producing high-precision machine beds and tool frames. By working closely with qualified partner companies, Frei Engineering can offer you a complete service from dimensioning, body shell production, measuring, painting and partial assembly to precise finishing by steel or stone grinders; for you, this ultimately means: maximum production – Minimal interfaces.

Contact
Stefan Keller
Advice / Sales
M +41 77 261 12 37
stefan.keller@frei-beton.ch