Pulverization processes normally carried out at ambient temperature can be done at cryogenic temperatures, obtaining higher quality ground products and reducing energy costs.
Heat-sensitive substances with low softening points such as plastics, elastomers, resins and oily products, can be milled effectively by the use of liquid nitrogen to bring them to their brittle temperature.
Cryogenic grinding is used successfully and economically in the milling of elastomer waste, plastics, and in all fields where cryogenic methods increase the efficiency of the grinding technology without damaging the physical, chemical or reticular structure of the end product.
The following table shows the materials tested by STM, indicating them in the first tab with a list, and then specifying in subsequent tabs the machines of STM suitable for working specific materials.
RUBBER TIRE (RECOVERY)
POLYAMIDE 12
POLYURETHANE
SILICONE (RECOVERY)
VITON GREEN (RECOVERY)
BAKELITE (RECOVERY)
HD-PE - POLYETHYLENE HIGH DENSITY
POLYAMIDE 66
PVC (RECOVERY)
LD-PE - POLYETHYLENE LOW DENSITY
POLYPROPYLENE
EPOXYDE RESIN
COUPLED PIPES: PE + ALUMINIUM
NBR + FERRITE
PTFE POLYTETRAFLUOROETHYLENE
PHENOLIC RESIN
VITON BLACK (RECOVERY)