SIM S.r.l. is a thirthy-year experienced Company in the field of ceramics and resistances for the heating industry. It is specialized in the production of technological products for the high temperatures sector, which are used in the ceramic, goldsmith and dental equipment fields, as well as in the foundry and metallurgical industry, in wire drawing and metal annealing, in the glass, food and petrochemical industries.
Our production is based on the manufacturing of technical ceramics such as pipes, tubes, resistance-supporting plates, pressed shaped, extruded and cast products. The complete range of our formulations includes: high alumina content thermodielectric mixtures (SIM.TDE 70 # 80 # 90% Al2O3) for the production of resistancesupporting shaped goods (electric furnaces industry); fused silica mixtures (SIM.SiO2) and lightened ceramic mixtures (SIM.CAST) (nonferrous alloys foundries); zirconium and zirconiummullite mixtures (SIM.ZIRK 80 e SIM.ZRK/ MUL) (steel plants and ferrous-alloys foundries in general, petrochemical industry).
The production cycle is carried out in three different processing types: extrusion (pipes and tubes), pressing (plates, hollow tiles, circular sectors) and casting (shaped products of any shape that cannot be mechanically manufactured). An innovating department is that of vacuum-casting, by means of de-pressurized tanks, to create mixtures in complete absence of air and with closed porosity (foundry and metallurgy industries as well as petrochemical industry). To complete the range of technical articles related to the fields of industrial furnaces, metallurgy and high temperatures, in May 2004 SIM S.r.l. acquired - and then merged with - ELETTROMECCANICA C.D.M., a company specialized in the processing of precious alloys electric wires and in their transformation into electric resistors and into heating elements.
The acquisition has resulted in the possibility of setting up a fully equipped workshop for the production of compact spiral resistors and other shape resistors, tig weldings of the final part (cold part), threading and drilling of the same, according to the customer's specific needs. With the ability to produce technical ceramics on customer's drawing, SIM S.r.l. has then specialized in providing comprehensive heating elements.
A lab for has then been set up for the quality control of both the incoming wire and the finished product output. The main quality controls carried out are: - electric resistance check (ohm/mt.) by means of a special measuring bridge equipped with a digital micro-ohmmeter; - diameter and ovality check, by means of a millesimal micrometer with comparator gauge; - visual check of the surface and winding appearance; - possibility of comparison of with the producer's chemical analysis through our external certified lab.