Medium-sized loaders are a type of construction machinery widely used in fields such as construction, mining, and logistics, with functions including loading, transporting, and unloading. The following is a detailed introduction to medium-sized loaders:
Definition and Parameter Range
Medium-sized loaders generally refer to loaders with a rated load capacity ranging from 3 to 5 tons. Their overall weight is usually around 9 to 17 tons, and the rated power is between 96 and 260kW. The specific parameters may vary among different manufacturers and models.
Performance Characteristics
- Strong Power: They are generally equipped with high-performance engines, such as Yuchai engines, featuring air-to-air intercooling and electronically controlled high-pressure common rail. These engines meet China's Stage IV emission standards, delivering strong power while being environmentally friendly and energy-efficient.
- Reliable Transmission System: A common transmission method is the connection between a fixed-shaft power-shift gearbox and a hydraulic torque converter. The gearbox has 4 forward gears and 2 reverse gears, which can meet the speed requirements of different working conditions, with high transmission efficiency and convenient maintenance.
- Efficient Hydraulic System: Most adopt single-pump flow division and load-sensing full-hydraulic steering technology. The hydraulic system uses an integral distribution valve and manual operation, resulting in high system efficiency, energy and fuel savings. Moreover, the pipelines are optimized to reduce pressure loss and system heat generation.
- Safe Braking System: They are usually equipped with service brakes and parking brakes. The service brakes mostly use air-over-oil caliper disc-type four-wheel brakes. This braking system has the advantages of stable braking, safety and reliability, simple structure, and convenient maintenance.
- Good Operational Comfort: Modern medium-sized loaders focus on the design of the cab, adopting an integrated cab with good sealing performance. The noise can be controlled at 80 decibels, the performance of shock absorbers is enhanced, and they are equipped with shock-absorbing seats and digital instruments, featuring strong human-computer interaction and comfortable operation.
Applicable Working Conditions
Medium-sized loaders are suitable for various working conditions, such as material loading, unloading, and handling operations in places like steel mills, power plants, coking plants, coal chemical plants, and coal yards. In construction, they can be used for earthwork, infrastructure construction, etc.; in mines, they can be used for loading and transporting ores, etc.
