Today, the scale of construction is increasing at an incredible rate. This indicates not only the emergence of new buildings and structures, but also the need for a large amount of building materials and equipment. Among the equipment used in this industry, the most popular wheeled excavator. With it, you can perform earthmoving work, as well as operations for unloading, loading and moving soil. Of course, a wheeled excavator is somewhat inferior to a caterpillar counterpart, but it will be indispensable for working in urban conditions. Because it is great for small earthmoving jobs, and the wheels make it easy to move around the construction site.
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This earth-moving equipment is made in the form of a frame, which has a pneumatic wheel undercarriage. There is also a turntable. The platform usually has the ability to make a full turn. Thanks to this feature of the turntable, the device will stand still, and the bucket can rotate in any direction. For greater stability during loading, special outriggers are provided, which are called outriggers. Also, due to the presence of outriggers, the excavator will not slip while loading its bucket.
The weight of such excavators does not exceed 25 tons. Thanks to this, it can easily move within the city limits, while not harming the road surface. Also, unlike caterpillar models, this version of construction equipment can reach speeds of up to 30 km / h.
It is worth noting that this technique can be supplemented with various hanging equipment. Then, if necessary, you can change its functionality, which will help to significantly save money. But even with additional elements, it retains its original purpose and at the same time can be used in parallel as earthmoving equipment.
First of all, this technique should be distinguished by its purpose and operating conditions. During construction, universal models are usually used. They are medium in size, quite productive, and easily moved from one object to another. For operation in mines, models of small size are used, this makes it possible to easily move in a limited space.There are also models for quarry applications, and they usually have a large bucket to increase the amount of excavated and submerged soil or rock.
The next parameter in which these earth-moving devices differ is the principle of operation. The most common option is a technique with a cyclical principle of operation. Here the device has one bucket. The cycle consists of the following actions: loading, delivery to the place of unloading and subsequent unloading. After that, the cycle repeats. There are also models with several buckets, here the principle of operation is continuous. The excavator has a rotary mechanism, with its help, several buckets are rotated, which increases work productivity.
Also, cyclic excavators, in turn, are divided into several groups depending on the additional equipment. To work with soil that is above the state of the art, models with a straight shovel are used. Such a shovel easily copes with any type of rock and copes well with the task of loading and unloading. If it is necessary to carry out work where the soil is below the state of the art, backhoe models are used. Such models dig the soil towards the excavator, they are mainly used for digging trenches or pits. Working at great depths requires a model with great maneuverability. This is an excavator with a dragline, which is a device with a bucket placed on a rope that is suspended from the boom. Grab excavators are used for digging pits, operating under water and performing loading. If the object is on an inclined surface, then models with telescopic equipment are used here.With their help, you can easily level the area.
Also, this version of earth-moving equipment may differ in the type of engine used. There are two options here: diesel and electric excavators. Diesel engines have rather high fuel consumption, but it pays off with their agility, mobility and performance. Electric options are used in cases where the equipment does not need to move from object to object.
This equipment is controlled from the cab by an operator with special rights. The cab has a seat where the operator is located and a control panel. Since there is a lot of noise in the process, the cabin is soundproofed. On the control panel there are devices with the help of which there is a control over the process of work and safety. The design of wheeled excavators uses a hydraulic system, thanks to which the control does not require much effort.
So, the operator using the panel can perform the following operations:
It should also be taken into account that this type of equipment can work both with the ground and with hard rocks. Equipment can be on the same level with the working platform, as well as above or below the platform.
First of all, before buying, you should decide on the purpose for which a wheeled excavator will be needed. If the purchase is made by an organization, then in this case, most likely, a wider range of requirements for the work will be presented. When purchased by a private person for work for hire, the range of work performed will be significantly narrowed.
Having decided on the goals that will be fulfilled using this technique, you can move on to the size and power of the machine. The higher the weight of this device, the more power it will have, but, consequently, the cost will also be higher. Keep in mind that it will be inconvenient for a too bulky option to do work in the city. And it doesn't matter whether it's a construction site or work on the road. Usually, such options are used in quarries. But even too small a model may not be able to cope with the tasks. It is also important how far an extended arrow can reach. If the work site is significantly different from the level of the equipment, then there is a risk that the bucket may not reach the required place. Usually this parameter is indicated in the device passport.
Also, do not forget to ask about the engine power. Of course, the larger the machine, the higher the power will be. But still, among the equipment of the same size, choose the option with a more powerful engine. Thanks to this parameter, the speed and productivity of the services performed will be increased, and it will be possible to take up work in difficult conditions.
Since most models run on diesel fuel, they therefore pollute the environment with exhaust gases. Please make sure that the option you select complies with the regulations in your country or region.
Having decided on the technical characteristics, one should not forget about the ease of use of the equipment. Since the work performed can take more than one hour, the operator must have a comfortable chair. The control levers should be comfortable so that each operation does not have to exert a lot of force.The work performed can be quite noisy, for this the cabin must have sufficient sound insulation.
This model belongs to compact excavators, it will be indispensable in places with limited space. Although the device has small dimensions, but it will amaze anyone with its performance and optimal characteristics. "Volvo EW60C" has a powerful engine, thanks to which it moves with ease even on an inclined surface.
There is a rotary switch to select the operating mode. There is also a switch to control the engine speed and select the optimal conditions for the work performed.
The operator's cab has all the conditions for creating comfort during operation. The cabin is also designed in such a way that the operator has a view in all directions. All switches are ergonomically positioned so that the operator can easily reach them without making unnecessary movements.
The operating weight is 5.7 tons, while its power is 40 kW. The volume of the bucket is 0.07-0.19 cubic meters.
This model wheeled excavator will perfectly cope with earthmoving works both on roads and off-road. "Volvo EW205D" has an ECO mode, which will save fuel consumption without compromising performance. It should be noted that the manufacturer has provided several options for operating modes, depending on the tasks. The operator can select one of the modes: idle, crane, basic or heavy work, or maximum power.It is possible to automatically turn off the engine when the equipment is not in use. To do this, you only need to set a certain time.
"Volvo EW205D" has an excellent hydraulic system and a system for dividing the flow. This simplifies operation, improves fuel economy and reduces cycle times. It is also worth noting that this model has a rigid superstructure and a strong undercarriage, thanks to which work on such equipment can be done in any conditions. There are both outriggers and a bulldozer blade, with their help, you can carry out loading or any other types of work without fear.
The manufacturer has not forgotten about the comfort of the operator. A color LCD monitor is installed to control the operation of the equipment and the amount of fuel. The seat has a large number of adjustments, heating, as well as air suspension. There are 14 ventilation openings to quickly heat or cool the cab.
The mass of "Volvo EW205D" is about 20 tons. At the same time, the maximum carrying capacity is 6.5 tons, and the maximum speed is 36 km / h.
This powerful earthmoving device can be used for digging pits, leveling areas, and can easily cope with rocky or frozen soils.
Hyundai D140W-9S has a Cummins diesel engine from an American manufacturer, whose power is 87 kW. There is a warm-up function, as well as protection against restart.Work in the city will not cause inconvenience to others, since the motor has a low noise level. Stick, boom and implement control is smooth and precise thanks to the improved hydraulic system. When the hydraulic system is not in use, the fluid supply is automatically reduced, which saves fuel consumption. To increase productivity, the function of automatic rotation of the boom and cart is provided. It is worth noting the presence of a power optimization system. With its help, you can not only effectively solve the tasks, but also control the process of equipment operation and monitor all indicators.
The operating weight of the Hyundai D140W-9S is 13.7 tons. The volume of the bucket is 0.58 cubic meters.
If you want to have productive, powerful and at the same time economical equipment, then the Liebherr A920 Litronic will be the best purchase. Performance parameters allow you to use this device in any field.
The Liebherr A920 Litronic has fast work cycles, which will increase the speed of work. At the same time, the working units will have a smooth ride and combine high accuracy, thanks to an improved hydraulic system. There are also special keys with which the operator sets the operating mode suitable for certain conditions.
"Liebherr A920 Litronic" has a four-cylinder engine.The engine has an air-cooled turbocharger for high performance while saving fuel.
To increase the possibilities, a large selection of interchangeable equipment is available. And to reduce the time for their replacement, quick-change systems are provided. Don't forget the dual tires, which create stability, even without the presence of additional supports. To improve the operator's view, there is a rear-view camera, and a spotlight for working at night.
Operating weight is 20 tons. Bucket volume is 0.55-1.2 cubic meters
This model of earthmoving equipment is suitable for performing any services related to excavation of soil and lifting of cargo. This model is distinguished by high load capacity and optimal performance. The JCB JS160W has heavy duty axles and blades and stabilizers designed to work in difficult conditions. The turntable adopts a box structure, which is resistant to impact damage and reduces the load.
"JCB JS160W" has a quick-release carriage for attachments. The cab has a hydraulic lifting system, which allows you to raise the post higher than other models. This quality will provide a good overview and greater safety.
"JCB JS160W" has several power levels, depending on the goal. The engine also has a new cooling system that optimizes the operation of the fans, which reduces noise levels and reduces fuel consumption.
It should be noted that this excavator model does not create much noise during operation, the noise level does not exceed 100 dB, so you can work at any time of the day. And in the cab there are special pillows that also reduce noise and vibration. Lever operation is smooth and easy. There is a button for increasing the power, with the help of which the hydraulic force is increased in the shortest possible time. To control the operation of the machine there is a color display.
The operating weight is 17 tons, while its power is 92 kW. Bucket capacity is 0.9 cubic meters.
The cost of new earthmoving equipment in Russia should be clarified on the websites of official dealers. When buying equipment, it is through official sites that you will have a big guarantee for the maintenance of equipment. You can also buy "by hand". In this case, the average cost will be about 5,000,000 rubles.