Advantages of Small Excavators

 The emergence of mini crawler excavators has brought great convenience to the majority of construction workers, and it can help builders complete construction work more easily and efficiently. Small excavators are welcomed by customers for their small size and wide range of applications. The operation of the small excavator is very simple and can effectively replace manual work, greatly saving manpower and reducing the cost of manpower investment.

 

 

What types of mini excavators are there?

 

There are five classification methods for the classification of common small excavators, namely, according to the form of the traveling device, according to the transmission mode, according to the form of the working device, according to the driving mode and according to the purpose.

 

① It has a small caterpillar excavator and wheel type. The crawler excavator has a larger chassis and is suitable for complex road conditions. Therefore, its application is very extensive. The tire-type small excavator has fast walking speed and good maneuverability.

 

② Classification by transmission mode: There are two types: mechanical and hydraulic. Mechanical single-bucket small excavators rely on mechanical transmission and require various gearboxes, winches, wire ropes, hooks, pulleys and other parts. The structure is complex, and it has gradually been eliminated in small and medium-sized single-bucket small excavators. The hydraulic single-bucket small excavator eliminates many complicated mechanical intermediate transmission parts, simplifies the structure, improves the transmission performance, works smoothly, operates flexibly, and has high productivity.

 

③Classified by the form of working equipment: there are backhoe, front shovel, grab shovel, dragline and other forms. When backhoeing, the digging direction faces the fuselage, and it is used to dig the soil below the parking surface. It is flexible in work and widely used. It is the main working device form in hydraulic small excavators.

 

④ There are internal combustion engine-driven and electric-driven small excavators according to drive mode.

⑤According to the purpose, there are general excavators, mining excavators, marine excavators and other special excavators.

 

 

 

Application of mini excavator:

 

1. For orchards: digging fertilization ditches, planting trees, weeding, cultivating soil, opening up wasteland, etc.;

 

2. Trench digging: digging cable trenches, water or sewage pipelines, natural gas pipelines, etc.;

 

3. Landscaping: planting trees, digging ditches, etc.;

 

4. Mountain contracting: planting trees, repairing terraces, digging ditches, opening paths, weeding and opening up wasteland, etc.;

 

5. Indoor aspects: indoor demolition, basement backfill;

 

6. In terms of crushing: road and ground concrete crushing, mountain stone crushing, etc.;

 

7. Mine aspects: tunnel and cave construction, mines and shafts, etc.;

 

8. Vegetable greenhouses: for deep digging;

 

9. In terms of digging medicinal materials: for digging yams, etc.;

10. It can be matched with a variety of excavator attachments to achieve a variety of functions, for example, scrap metal shear for excavator, car dismantling shear, log grapple for excavator, ect.

 

In addition, agricultural and forestry planting, farmland reconstruction, small earthwork engineering, municipal engineering, road surface repair, farms, garden cultivation, and river and ditch dredging projects and other operating environments.

 

 

Features of the mini excavator:

In this era of mechanization, most users gradually use mechanized production to replace manpower. The small excavator has reliable quality and stable performance, and can adapt to harsh construction environments. The equipment is matched with a high-horsepower engine and has high construction efficiency. The structure of the equipment is simple, the operation is simple and convenient, and the maintenance cost is low. It can be matched with different excavator attachments to realize various functions such as rotary excavation, crushing, hook cleaning, bulldozing, etc., realizing one machine with multiple functions. The small excavator is suitable for various soil properties, has good use effect, simple operation, small and flexible, convenient transportation, and can work in small places.

 

 

What are the types of concrete pumps?

 The concrete delivery pump includes a pump body and a delivery pipe. It is a machine that uses pressure to continuously transport concrete along the pipeline. It is mainly used in house construction, bridge, and tunnel construction. With the rapid advancement of urbanization and the rapid development of urban buildings, the demand for concrete pumps is gradually increasing. YG concrete pump manufacturer offers many types of concrete pumps. We will introduce you to the machine details.

Concrete delivery pump composition

The concrete delivery pump adopts the electric motor or diesel engine to drive the pumping system, and the delivery volume of the concrete delivery pump can be automatically adjusted through the constant power control of the hydraulic system, and the concrete delivery volume can be selected by manual control. The pumping system is mainly composed of a hopper, a mixing mechanism, a concrete distribution valve, a concrete delivery cylinder, a washing room, and a main oil cylinder.

Working principle of concrete pump

When the pressure oil of the hydraulic system enters the main oil cylinder, the piston rod extends, and at the same time, the pressure oil passing through the connecting pipe of the sealing circuit makes the other piston rod retract. When the concrete conveying piston connected to the piston rod of the main oil cylinder retracts, it produces self-priming in the conveying cylinder, and the concrete in the hopper is sucked into the conveying cylinder through the suction port of the slide valve under the action of atmospheric pressure and the boost of the mixing blade. At the same time, under the action of oil pressure, the other main oil cylinder pushes the piston rod of the main oil cylinder out and at the same time pushes the concrete piston to press out the concrete in the delivery cylinder, and enters the concrete delivery pipe through the Y-shaped pipe of the delivery port of the slide valve. After the action is completed, the system automatically reverses the direction so that the pressure oil enters the other main oil cylinder to complete another suction and delivery stroke of different delivery cylinders. Repeatedly, the concrete in the hopper is continuously sucked and pressed out of the delivery cylinder and reaches the operation point through the Y-shaped pipe and the pipeline connected to the outlet to complete the pumping operation.

Types of Concrete Pumps

There are many types of concrete delivery pumps, which can be divided into the following categories according to different methods.

1. According to the way of movement: according to whether it can be moved, concrete delivery pumps can be divided into fixed concrete delivery pumps and vehicle-mounted concrete delivery pumps.

The stationary concrete delivery pump has no chassis and needs to be towed to move, while the vehicle-mounted mobile concrete pump has its own independent chassis, so it can be moved directly.

2. According to valves: According to the different valves of concrete pumps, concrete delivery pumps can be divided into tubular valve concrete delivery pumps and rotary valve concrete delivery pumps. Different design forms have different advantages and disadvantages.

3. According to the size of the pump: according to the size of the concrete pump, the concrete pump can be divided into mini concrete pump, small concrete pump, medium concrete delivery pump, and large concrete delivery pump. Usually, depending on the size of the project, concrete pumps of different sizes and models can be purchased for construction.

4. Classified according to the driving method of concrete pumps: there are piston types and extrusion types, and most of them are piston types at present. In addition, there are hydraulic diaphragm and air tank pumps.

In addition, there is a concrete mixer with pump.