Profile: Spark Engineering is engaged in manufacturing plastic extrusion machinery. Our pipe prifile plant contains screw and barrel both are made from alloy steel duly nitrided and hardchrome plated for long life. Screw is fitted on a suitable heavy thrust housing with thrust and roller bearing to withstand thrust pressure during extrusion. Screw is driven by AC motor and coupled through a suitable standard make gear box. Barrel is divided into three zones for heating load distribution. Cooling blowers are provided on the barrel for two zones. Water circulating jacket is provided in feeding zone.