Excavator Hitachi (Hitachi): specifications. Japanese special equipment

Construction work is always closely connected with the development of soil, which is impossible without excavators - earth-moving machines of cyclic action. They are designed to move loose materials, dig trenches, trenches, excavation of rocks, clearing roads, erecting embankments and a number of other operations. Therefore, when choosing this special equipment, it is necessary to give preference to proven and reliable specimens. First of all, pay attention to the Japanese machines of Hitachi, a recognized world manufacturer of special machinery. Excavator "Hitachi" is a reliable, hardy and unpretentious toiler who will cope with any correctly assigned task in a short time. A huge model range of earth-moving vehicles of the concern will allow selecting a specimen for work in different conditions.

Types of excavators

The financial-industrial group Hitachi exists since 1910. For all time of its existence, it has accumulated vast experience in the production of construction equipment. The company's machines embody innovative developments and proven technologies. Therefore, the popularity of Japanese special equipment is growing every year.

In the model range of the machine-building concern, the specimens are divided according to their dimensions. So, the small, medium and large excavator "Hitachi" stand out. The first type is designed to work in tight urban conditions. Their dimensions may not exceed the overall dimensions of the car. Such representatives are used for laying communications, digging shallow trenches. Medium-sized machinery has a wider scope of application. It can be used on large construction sites, in small quarries, at reception stations and in other areas. Large-size excavators, as a rule, are used for extraction of minerals by the open method. Their weight reaches 800 tons, and the duration of continuous operation can be more than a day.

ZX Series Excavators

The Hitachi wheel excavator is, as a rule, medium and small-sized machinery. All models are presented in two series - ZX and ZAXIS-3. Special equipment of the ZX line is characterized by the following indicators:

• Operating weight - from 13.4 to 20.3 tons;
• Working capacity of the bucket - from 0,5 to 0,8 cubic meters;
• The maximum depth of digging is from 5.05 to 6.42 meters;
• Power plant - 4 or 6-cylinder turbocharged diesel engine with water cooling.

The hydraulic system is responsible for the development of the soil, which is equipped with suction and full flow filters. The power and speed are controlled by a stepper motor. The Hitachi ZX wheel excavator operates in two modes - digging mode or in the use of attachments. All representatives of the series are equipped with a shock-proof valve, a rapid warm-up system, two axial-piston pumps with differentiated productivity and a rotary platform.

ZAXIS-3 series of excavators

Wheel excavators ZAXIS-3 are designed for operation on large construction sites. They are characterized by the following indicators:

• Operating weight - from 16.5 to 21.1 tons;
• The bucket capacity is 0.19-1.2 cubic meters;
• Length of the boom - from 2.52 to 2.71 meters;
• Power - from 90 to 122 kilowatts.

Each such excavator "Hitachi", the price for which is within reasonable limits, is equipped with hydraulic system HiosII, which has proved to be reliable and high-performance. The power plant is represented by the Isuzu diesel engine with a direct fuel injection system and water cooling. In addition, models are distinguished by the presence of automatic bridge locking and braking systems, as well as a two-speed gearbox and axial-piston pumps with variable flow.

Crawler excavators

The company's crawler excavation technology is presented in two series - ZX-3 and EX-6. As a rule, the track excavator ZX-3 has a mass in the range from 1 to 85 tons. They are used both in construction work and in the extraction of minerals. Representatives of the EX-6 model range are characterized by high operational weight (from 114 to 811 tons) and are used in quarries and during overburden operations. Models on caterpillar tracks are characterized by better cross-country ability and resistance to weather and climatic conditions. The operating temperature range is from -50 to +45 ° C. There are specimens intended for working with rock and heavy rocks, dismantling of structures and operation in hard-to-reach places. Each crawler excavator can be equipped with a shortened boom and an enlarged bucket, if necessary, to remove a large volume of soil in a short period of time.

Marking of crawler excavators

The working characteristics of the Hitachi excavator on crawler tracks depend on the installed equipment. You can find out the features of the machine by marking:

• LC models with an extended-length propulsor are used on weak soils.
• LD - excavators "direct shovel", designed to develop soil above the fulcrum.
• H - specimens for working with heavy and rocky rocks.
• K - modifications for dismantling works, equipped with attachments.
• MT - models with high traffic capacity for work on the "cluttered" territory.
• USR, US and U - representatives with a shortened, small and "zero" radius of the turntable.

Such a wide range of equipment allows each customer to choose exactly the model that he will need to perform a specific task.

The famous representative - Hitachi ZX 330

The most popular representative of the caterpillar models of the company is the Hitachi 330 excavator, which is distinguished by its power. Despite the fact that the specimen belongs to the middle class of technology, it successfully competes with heavy excavators. This is helped by the enhanced design of the boom and steps, due to which both safety and productivity have grown. You are aware of the magnificence of technology, having studied the technical characteristics. Integrated automated functions and work operations have increased the functionality of the machine - it is suitable for the development of any kind of soil and for operation in difficult conditions.

One of the few disadvantages that the Hitachi 330 excavator possesses is the speed of movement. It is only 5.5 km / h. Therefore, a special tractor is required for transportation to the site of development of the soil. The cost of such equipment is within 7 million rubles.

Maintenance of special equipment

For reliable and trouble-free operation, Hitachi excavators need quality and timely maintenance. Periodically, the diagnosis of electrical systems of equipment, inspection of hydraulic cylinders, defects in the main components and assemblies should be carried out.

If faults are detected, it is necessary to replace the failed component immediately. The blessing on the Japanese technics in a free access there are spare parts. "Hitachi" - excavators, which will serve you faithfully for several decades, if you take care of them.