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"ROC" The brand
Using our ROC Mineral cast technology, we are producing high precision clamping towers, clamping pallets, grid towers, grid pallets as well as customized items. A production process devised according to newest technological requirements and a modern, air-conditioned production hall guarantees highest quality products.
Advantages with ROC Mineral casting - Excellent attenuation-attributes (6-10 times better then Grey iron)
- Low thermal conductivity, ROC® Mineral cast is reacting very slowly to temperature changes
- Chemically and mechanically resistant against aggressive as well as abrasive medias
- No corrosion
- Design independence for creating any forms
- Possibility to integrate inserts like heavy-anchors, air or hydraulic parts
- Very little specific weight, lighter then aluminum
- Pleasant surface, no paintwork necessary
- About 30% lifetime increase of machining tools
Please note that ROC Mineral cast is heaving a low tensile- and impact strength, but with a suitable design we improve this characteristics.
Comparison values
| Characteristics | Unit | Mineral cast | Gray iron | Steel | Tightness
| kg/dm^3 | 2.3 | 7.15 | 7.85 | Modulus of elasticity
| kN/mm^ 2 | 30-40 | 80-140 | 210 | | Tensile strength | N/mm^ 2 | 15-20 | 100-450 | 400-1600 | | Compressive strength | N/mm^ 2
| 100-120 | 600-1000 | 250-1200 | Flexural strength
| N/mm^ 2 | 25-30 | 250-490 | - | Attenuation
| % | ca. 0.3 | 0.003 | 0.002 | Thermal conductivity
| W/m*K | 1.3-2 | 50 | 50 | Middle specific heat capacity
| kJ/kg*K
| ca. 1 | 0.5 | 0.5 | Thermal coefficient of expansion
| my/m/° | 14-16 | 11 | 12 | | Linear shrinkage after demolding | 0/00 (ca.) | 0.3 | - | - |
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