For questions regarding the purchase of this equipment (Hitachi EX40U mini crawler excavator), terms of credit and leasing, service and warranty, please contact the factory dealers or official representative offices. Hitachi EX40U mini crawler excavator can be supplied either directly from the manufacturer or from sites in Moscow and other regions of the Russian Federation.
Modification with short counterweight.
Designed for work in urban environments. When turning, the rear part of the platform does not extend beyond the overall dimensions of the excavator track.
Hitachi EX40U Specifications:
| Main characteristics | ||
| Weights and ground pressure without cab | 400mm rubber track | 3980 kg (0.23 kgf/cm2) |
| 400 mm steel track | 4210 kg (0.24 kgf/cm2) | |
| Weights and ground pressure with cab | 400mm rubber track | 4150 kg (0.24 kgf/cm2) |
| 400 mm steel track | 4290 kg (0.25 kgf/cm2) | |
| Engine | ||
| Model | ISUZU 4LE1 | |
| Type | Diesel, 4-stroke, water cooling, 4-cylinder | |
| Rated power (DIN 6271) | 24.5 kW (33.3 hp) at 1900 rpm | |
| Maximum torque | 137 Nm 1500 rpm | |
| Working volume | 2.179 l | |
| Piston diameter and stroke | 85 x 96 mm | |
| Fuel tank capacity | 50 l | |
| Operating Parameters | ||
| Speed | 0-2.4 / 4.3 km/h | |
| Angular speed of turntable | 8.3 rpm | |
| Maximum climbability | 30 degrees / 58% | |
| Handle pull force | 23.1 kN | |
| Digging force | 32.3 kN | |
| Boom rotation angle | Left 60 degrees / Right 80 degrees | |
| Hydraulic system | ||
| Pumps | 2 pumps with adjustable capacity | |
| 1 gear pump | ||
| 1 control pump | ||
| Maximum oil supply | 2 x 41.0 l/min | |
| 1 x 31.9 l/min | ||
| 1 x 9.3 l/min | ||
| Operating oil pressure | 240 kgf/cm2 | |
| Tank capacity | 62 l | |
| Chassis | ||
| Machine track | 1550 mm | |
| Length of track support surface | 1955 mm | |
| Shoe width | 300 mm | |
| Bulldozer blade, width X height | 1950 x 375 mm | |
| Bulldozer blade lifting height | 400 mm | |
| Dozer blade lowering depth | 365 mm | |
| Number of rollers (per side) | Supporters | 1 |
| Supporting | 4 | |
| Geometric digging parameters | ||
| Handle length | 1340 mm | |
| Maximum digging depth | 3400 mm | |
| Maximum reach of working equipment | 5550 mm | |
| Maximum unloading height | 3290 mm | |
| Maximum digging height | 4490 mm | |
| Minimum platform turning radius | Standard | 2485 mm |
| When the boom is rotated 80 degrees to the right | 2125 mm | |
| Ladle | ||
| Bucket capacity | 0.14 m3 | |
Specifications
The Hitachi 400 excavator has relatively small overall dimensions:
- length – 3670 mm;
- width – 3450 mm;
- height – 1820 mm;
- ground clearance - 560 mm;
- track base – 4050 mm;
- caterpillar width – 600 mm.
The mass of the model is 39,000 kg. At the same time, the tracked base provides the equipment with increased stability on any type of soil and on rough terrain (the specific pressure on the ground is 0.74 kg/sq.cm). A large bucket volume (0.9-1.6 cubic meters), which is made of wear-resistant materials, and a significant digging depth (7310 mm) guarantee high productivity.
Operating parameters of Hitachi ZX 400:
- bucket force – 236 kN;
- maximum traction force – 322 kN;
- digging radius – 11100 mm;
- maximum digging height – 10440 mm;
- unloading height – 7330 mm;
- platform rotation speed – 10.7 rpm.
The excavator is able to overcome a slope of 35 degrees. The average speed of the equipment is 2.9-4 km/h, the maximum is 5-6 km/h. A fairly significant speed allows you to reduce positioning time, which has a positive effect on machine performance.
Fuel consumption
The average fuel consumption of the Hitachi 400 model is 18-20 l/hour. A large fuel tank with a capacity of 630 liters allows the excavator to operate for a long time without refueling.
Features of Hitachi EX40U:
The 2-speed travel motor, depending on the work being performed, allows you to use the high-speed mode for quick-change operations and the powerful mode when working with a bulldozer blade.
Accelerator pedal
Step
Box for tools and accessories
Bucket hydraulic cylinder hose mounted inside the arm
Hood design provides easy access to the engine
Water separator to prevent water from entering the fuel line
High-strength, low-maintenance bushings are located at all attachment and dozer blade connections. Bushings soften shocks and jerks during excavator operation. The dozer blade connection requires lubrication. Lubrication of connections in attachments is carried out no more than once a year or every 500 m/h.
The optimal hydraulic system uses three pumps for straight travel and also maintains a constant speed when turning during combined operations.
Device
It is no coincidence that the Hitachi ZX 400 is designed for harsh operating conditions. Enhanced protection and an improved tracked undercarriage made it possible to increase wear resistance and traction force by 15% compared to its predecessors. The excavator surpasses most models in its class in these parameters.
The special equipment is equipped with a short-throw gear lever, which is very convenient to use. This made the operator's work more comfortable. At the same time, the boom pulling speed increased by 20%, which increased productivity.
The chassis of the vehicle has been significantly modernized. It acquired improved protection, which made the special equipment more resistant to external influences and wear.
The Hitachi 400 model has an increased level of security. This parameter has been improved through the use of reinforced front glass, which can withstand severe impacts, and a specialized operator cabin with a FOPS protection system. Due to the new synchronization system, the noise level has decreased and efficiency has increased.
Hitachi Construction Machinery paid special attention to operator comfort. In addition to excellent vibration and noise insulation, the operator’s cabin of the model has been enlarged. Thus, legroom has expanded by 55%. Thanks to improved ergonomics, operating the excavator has become extremely simple. The dashboard with a convenient arrangement of buttons and levers will not cause any trouble even for an inexperienced operator. The chair in the cabin is located in such a way that it will be comfortable for a person of any size to work on it. These improvements help reduce fatigue, which has a positive effect on labor productivity, again allowing work to be done more efficiently.
Hitachi ZX 400 has a long service life and significant maintainability. Replacement intervals for many excavator components have been extended. So, the oil change on this machine should be done after 5000 hours of operation.
These design characteristics have a positive effect on the popularity of the Hitachi 400, making the model extremely popular.
Technical characteristics of Hitachi 450 excavators
Another popular member of the Hitachi family of heavy excavators is the ZX 450 model. This special equipment is designed to perform various large-scale mining and construction work and, along with the previous model (ZX 400), is the embodiment of power, efficiency and comfort for the operator. This new generation of excavators, including the Hitachi 450 and 450 LC (long wheelbase) excavators, was developed taking into account the wishes of users and features a number of technological features.
All machines from the Zaxis 3 series have chassis and attachments that are characterized by increased strength compared to earlier series. Hitachi excavators, photos of which can be seen below, are equipped with modern hydraulic equipment made using the latest technologies and have an excellent power-speed ratio.
The operating weight of the equipment is 42.5 tons, overall dimensions are 11.85 x 3.67 x 3.45 m. The Isuzu engine with water cooling and direct fuel injection has a working volume of 15.68 liters. and power 363 hp.
The equipment cabin is quite spacious and has reinforced glass windows for better visibility. The attachment is a backhoe bucket, and users can use one of several booms and sticks offered by the manufacturer if necessary. Bucket capacity varies from 1.15 to 2.65 cubic meters.
No matter how high-quality and reliable the equipment you purchase is, sooner or later it may fail. Repair of Hitachi excavators, in case of their breakdown, must be carried out by qualified specialists. If there is a need to find spare parts for a Hitachi excavator, then again it is better to contact official dealers and purchase original parts. If they are difficult to find in your hometown, then try placing an order online - many modern companies practice a similar method of delivering goods.
Hitachi 400 crawler excavators - overview and features of construction equipment
The popularity and demand of this special equipment is due, among other things, to its optimal operating parameters. Hitachi excavators, the technical characteristics of which allow them to cope with any given task, are suitable for performing large volumes of work. The weight of this machine is 39 tons, and the overall dimensions are 1.82 x 3.67 x 3.45 m.
The Hitachi 400 excavator is equipped with a four-stroke six-cylinder Isuzu turbocharged diesel engine, the volume of which is almost 8 liters and the power is 271 hp. The fuel tank of this excavator is designed for 630 liters. and allows you to work without refueling for quite a long time. The average speed of movement is 3.5 – 4 km/h, and the maximum speed is 5 km/h. The ZX 400 excavator is quite capable of negotiating a slope of up to 35 degrees.
As a working tool, the manufacturer offers a wear-resistant backhoe bucket with large teeth with a capacity of 1.6 cubic meters. The maximum digging height reaches 10.44 m, and the radius is a little over 11 meters. Digging depth – 7.31 m, unloading height – 7.33 m. The platform rotates at a speed of 10.7 rpm. The rear of the platform has a turning radius of 3.3 m.
The modernized chassis has improved protection, which makes the special equipment more resistant to wear. To change gears, there is a short-throw lever, which is very convenient to operate. The impact-resistant cab is protected by reinforced glass for greater safety for the excavator operator. In addition, the cabin has excellent sound insulation for more comfortable work.
