Hindustan Motor Mfg. Co. Supplies Heli-Worm Geared Motors, S Series. Hindustan Motor Mfg. Co. Is an ISO 9001 certified company. The Heli-Worm Geared Motors feature 0.25 to 22.0 kW Rating, 10/1 to 250/1 Ratio and 20 to 70 mm Shaft diameter. These motors are provided with Solid and Hollow Shafts. Heli-Worm Geared Motors are used in material handling equipment, textile machinery, cement plant, pharmaceutical machinery, packaging machinery, construction equipment, etc.