Panchal machinery manufactures twin shaft extruder gearboxes which are standardised gear unit series for double-screw extruders offering extrusion technology, a design proven successfully in practice. These gearboxes come with salient features of compact design with high ratings owing to the use of high-strength, case-hardened steels, smooth running with low noise due to ground single helical gearing, vibration-damping housing of grey or nodular cast iron, helical gear unit not subjected to any screw back pressure forces, maximum operating reliability.