How are loaders distinguished?

Loaders can usually be divided into several categories, mainly based on engine power, transmission form, traveling structure and loading and unloading methods to distinguish. The specific 

classification is as follows:

1. according to the engine power points:

   - Small loader: power less than 74kw.

   - Medium-sized loader: power between 74 ~ 147kw.

   - Large loader: power between 147 ~ 515kw.

   - Extra-large loader: power greater than 515kw. 2.

2. According to the transmission form:

   - Hydraulic-mechanical transmission: small shock vibration, long life of transmission parts, easy to maneuver, speed and external load can be automatically adjusted.

   - Hydraulic transmission: stepless speed regulation, easy to maneuver.

   - Electric drive: stepless speed regulation, reliable work, simple maintenance. 3.

3. According to the traveling structure:

   - Tire type: light in quality, fast in speed, flexible in maneuverability and high in efficiency.

   - Crawler type: small ground pressure, good passability, low center of gravity, good stability. 4.

4. According to the loading and unloading mode:

   - Front unloading type: simple structure, reliable work, good vision.

   - Rotary type: the working device is mounted on the rotary table which can rotate 360°, and there is no need to turn around for side unloading.

   - Rear unloading type: front-end loading, rear-end unloading.

Front-end loader is a common type of loader, its working device is located in the front of the machine, mainly used for shoveling, handling and unloading loose materials, such as soil, gravel, coal 

and so on. Front-end loaders are usually characterized by the following features:

- The working device consists of bucket, movable arm, linkage, rocker arm and hydraulic cylinder.

- The bucket can be lifted and tipped to facilitate loading and unloading of materials.

- Usually adopts tire type traveling chassis, which has good mobility and flexibility.

- It is suitable for various engineering and mining operations, including but not limited to construction sites, road construction, mining, etc. .

The operation mode of front-end loader usually includes driving to the material pile, lowering the movable arm, rotating the bucket to insert the material, lifting the movable arm to load the 

material, turning to the transportation machine, unloading the material and other steps.

Translated with DeepL.com (free version)