The Indian hydraulics engineering industry has been the key player in the country’s rapid economic development, in both the arenas of infrastructure and production. In particular, the segment of earthmoving and construction equipment (ECE) such as hydraulic excavators, wheel loaders, backhoe loaders, motor graders, vibratory compactors, cranes, dumpers, tippers, forklifts trucks, dozers, pavers, batching plants, etc. is based on applications of hydraulics technology. Over the past two decades, the ECE has made enormous progress and grown both in size and diversity.
The driving force in a hydraulic system is the electromechanical actuator, a tiny component that is capable of performing Titanic feats. It is similar to mechanical actuators except that the control knob or handle is replaced with an electric motor. Rotary motion of the motor is converted to linear displacement.
As for electromechanical actuators manufacturers India has several reputed companies like the Delhi NCR based Dantal Hydraulics that also has another unit in Bangalore. In this type of actuator, the lead screw does not rotate. Although it prone to wear and tear due to numerous parts, it is cheap and has several advantages such as –
- Automated Operation
- Self-contained techniques
- Identical function in extending or retracting
- Provision in design for position feedback
- Energised by DC motors
Reportedly, there are many designs of modern linear actuators and company like Dantal also happens to be one among leading D.C. power unit manufacturers in the country.
All said and done, hydraulics engineering industry will be the decisive factor in the nation’s growth. The Planning Commission has confirmed that India’s infrastructure spending is in the range of one trillion US dollars during the 12th Five-Year Plan (2012-17). On this scorer, the government has extended sops, including a large number of special economic zones (SEZs), to the capital goods industry of which construction equipment is a part.
Meanwhile, preparations are in full swing to host the eighth edition of Excon 2015 (an expo on ECE) at Bangalore in November. This has been organised by Confederation of India Industry (CII).