MAK Grades for Earth Moving equipment application click here
Earth moving equipment's are used in construction and mining operations for
excavation purposes. The common ones are bulldozers, dumpers, loaders ,scrapers, shovels, graders, draglines and trucks.
Diesel engine power is used almost exclusively, having single engines developing as high as 400hp. Twin-engine designs of tractors and loaders are available with higher hp. Superchargers have been used to boost the hp even further.
Torque convertors are in wide use to transmit power from engine to the drive system.
|| TOP ||
Hydraulic systems for actuating the various movable parts such as blades, buckets and scraper bowls are used widely giving better control and smoother operation.
Trucks vary from standard heavy-duty highway equipment to giant off-highway units. Both rear dump and tractor trailer types are used. Common capacities are 22 to 34 tons. But higher capacity trucks of 50 tons or more are also used. Horse powers have also increased tremendously and upto 600hp rear dumpers are seen. Turbo superchargers are being used and torque convertors, power brakes, power steering are standard equipment.
The type of lubricants required varies with each manufacturer's
recommendation. But the major lubricants used are as follows:
- Diesel engine oil
- Hydraulic transmission oil
- Automatic transmission fluid
- Gear box oil
- Brake fluid