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Composite constructions (EPUFILL)
For four decades, cavities in steel or cast iron machine beds and machine bed components have been filled with epoxy resin-bonded mineral casting. Initially often used to subsequently improve dynamic performance, this has since become a process in its own right.
Product Description
- Steel, welded, metal shell, and cast structures are filled with a vibration-reducing epoxy resin-bonded mineral casting
- This creates composite structures with long-term stability that also offer an excellent level of static and dynamic rigidity
- Also available with radiation-absorbing filling material (EPURAM)
Added value
- Increased dynamic rigidity (damping) in steel, welded, metal shell, and cast constructions
- Increased static rigidity in steel, welded, metal shell, and cast constructions
- High level of functional integration
- Excellent availability and short time-to-market
Areas of application
- Machine beds for all industries
- Machine components (e.g. traveling columns, gantries, traverses)
- Radiation protection components (EPURAM filling)
- Vibration-damping substructures, e.g. for turbines, combustion engines, test beds, centrifuges
- Suitable for individual pieces or special parts, and for small to medium quantities
Technical Specifications
| Measure | EPUMENT® 145/B | EPUMENT® 140/8B | EPUMENT® 140/5 | |
| Density | g/cm3 | ca. 2.4 | ca. 2.3 | ca. 2.3 |
| Modulus of elasticity (compression testing)* | kN/mm2 | 40–45 | 35–40 | 30–35 |
| Poisson’s ratio | ca. 0.30 | ca. 0.29 | ca. 0.28 |
| Compressive strength* | N/mm2 | 130–150 | 130–150 | 140–160 |
| Flexural strength | N/mm2 | 30–35 | 30–35 | 35–45 |
| Coefficient of thermal expansion (20°C) | ca. 15 | ca. 16 | ca. 19.5 | |
| Logarithmic decrement | 10-6K | 0.022 | 0.03 | 0.035 |
| Maximum particle size | mm |
16 | 8 | 5 |
| Minimum castable wall thickness | mm | 80 | 50 | 40 |
* Measured on Form+Test Seidner testing machine, model 502/3000/100SP
Documents/Downloads
Brochure Composite structures EPUFILL
EPUFILL technology features steel/welded, metal shell, and cast structures that are filled with a ...
Brochure
Download PDF (3 MB)English
Broschüre Verbundkonstruktionen EPUFILL
Bei der EPUFILL-Technologie werden Stahl-/Schweiß-, Blechmantel- und Gusskonstruktionen mit einem ...
Brochure
Download PDF (3 MB)German