PRORATIO, s.r.o.
V Uličkách 4
CZ - 257 21 Poříčí nad Sázavou

PRORATIO, s.r.o.
Sedlecká 570 (areál KDS)
CZ - 264 01 Sedlčany

SKP Technik GmbH
Industriestraße 4
D – 91077 Neunkirchen am Brand



  • Various mixtures of raw rubber are delivered in coils.
  • Rubber is provided with bearing foil; then it is cut into strips of required dimensions.
  • The strips are then inserted into vulcanisation jigs.
  • Production of loudspeaker rings with the help of rubber vulcanisation takes place in 33 injection moulding machines at a temperature of up to 200 degrees centigrade.
  • 100% visual check, together with complex measurement and testing in a two-shift operation, guarantees top quality.