Mining Machinery Manufacturers have responded by launching new generations of quarry machinery fitted with emissions-compliant and often more fuel efficient engines. JCB's new Interim Tier 4/Stage IIIB-compliant 457 wheeled loader, for instance, has a new eco mode that is said to produce fuel savings of up to 6%.

It is very important to ensure the concentricity of all parts when the workers install . During the operational prcess of ball mill, the factors that are relatively fixed and that do not need frequent adjustment include the hardness of ores and rocks, the crushing granularity, screening hole of the , ball mill model, quality of steel ball, additive amount of ball, size and proportion of steel ball, rotary speed of the grader, gap of the grader impellors, lifting height of the main shaft of the , friction of classifier blade, height of classifier downflow weir, height of bottom open mouth of classifier, size of bottom open mouth of classifier, height of upper open mouth of classifier, size of upper open mouth of classifier. The 3.5 m3 bucket capacity machine also boasts a +16% increase in power and +18% more torque. Other technology on-board includes automatic differential locking and an intelligent clutch cut-off system that allows maximum hydraulic power at low travel speeds.

Similarly, Liebherr's new Interim Tier 4/Stage IIIB wheeled loaders - the 2.6 m³ to 14 m³ bucket capacity L 550, L 576 and L 580 - also feature a host of new technology in combination with their new, low emissions engines.

These parts are stipulated in the ealier stage of the design and technology. Of course, many ore dressing plants have problems in machine design, machine installation and equipment quality. Next we will explain this part.

1. Selection of ball mill model: Different ball mill model can satisfy different technological requirements, for this reason, when designing models, the workers should choose the proper model.

2. The installation of ball mill is not coaxial and there is discrepancy between big and small gearing mesh.

 3. There is sand hole in the driving part of ball mill and the reduction gear. After the machine is installed, the wheel gear will abrade before it is operated for a long time.

The Liebherr-Power-Efficiency system (LPE) enhances the loader's engine management in proportion with the hydraulics during operation and is said to provide up to 8% additional fuel savings, while Liebherr's data transfer and locating system LiDAT comes as standard.