Stonewool

STM developed its own free formaldehyde binder for mineral fiber based on Maillard reaction.

STM Bio Binders can be adapted to the characteristics of existing plants.

See patent WO 2013/179323

STM DUAL DENSITY MACHINE to produce panels with upper layer with higher density

• Upper layer 20 mm up to 200 kg /m3 
• Lower layer 100 mm typical 100 kg/m3

Production lines with twin spinning machine for production capacity up to 70.000 ton per year.

End product scraps recycling system into the forming chamber

Fiberizing shots + fibers recycling system into electric melter

Gases coming from Cupola are filtered and reburnt .

The exhaust gases are compatible with the most severe antipollution norms.

This plant allows very good energy recovery preheating the cupola combustion air.

STM  electric melter technology for  stone wool. This new furnace produces very good melt quality, no pollution, fully automatic, reduced electrodes consumption. Recycling of all shots  produced by the line into the melter. Improved self loading automatic dust filters.

7 tons/hour capacity driven spinning machine.

Very safe running, high quality of the produced stone wool with very low shots contents, low maintenance cost.