Demag Cranes & Components [India] Private Limited manufactures Dedrive Pro Frequency Inverters. Demag Cranes & Components [India] Private Limited is an ISO 9001 certified company. The Dedrive Pro frequency inverters are high-performance components ranging from 1.5 to 560 kW for 380 to 690 V systems. The Dedrive Pro Frequency Inverters are the solution for a variety of requirements and firmly established their position in the industry. The applications of Dedrive Pro Frequency Inverters are infinitely variable motions for travel, lifting, turning and slewing applications.