20mm Theysohn Twin Screw Extruder, Model TSK-TT 020/28D. Item: 18999A. View Details. Add To Quote. 34mm Leistritz Model LSM 30/34, 30:1 L/D Ratio, Twin Screw Extruder, 15hp. Item: 16658J Watch. View Details. Add To Quote. 40mm Coperion Model ZSK 40MC Twin Screw Extruder, 80 HP AC, New In 2004.