Single-bucket, full-rotary, universal, crawler-mounted, multi-bearing type, on rigidly mounted support rollers. The main difference between the EO-4112A excavator and the previously produced EO-4111G model is the use of a tractor-type caterpillar drive with a lantern gear. The EO-4112A-1 model retains the old type caterpillar drive, with ridge (cam) engagement. The excavator crawler carriage is a rigid welded structure made of a bent profile and a cast running frame. The caterpillar tracks are assembled from profile tracks (links) mounted on a caterpillar chain. The drive chains and caterpillar tracks are tensioned using hydraulic cylinders. The mechanisms of the turntable are maximally unified with the mechanisms of the turntable of the E-652B, EO-4111V and EO-4111G excavators. The thermally insulated cabin is installed on rubber shock absorbers, it is equipped with a comfortable anti-vibration seat for the operator, equipped with a fan, a windshield wiper, and a heating unit to maintain normal temperature in cold weather. The control of the executive bodies of the excavator is electro-pneumatic. A light display is installed in the cabin, on which the most important engine parameters are displayed to monitor serviceability. An audible signal notifies you of problems at controlled points. Good visibility and convenient location of controls create good working conditions for the driver. Easy access to components and mechanisms is provided. Electro-pneumatic control ensures smooth execution of all work operations. The excavator operates at temperatures from -40° to +40° C. The main advantages of the excavator: reliability in the operation of components and mechanisms, high productivity, high maneuverability and good stability, low pressure on the ground, ease of operation and maintenance, control of the vital parameters of the excavator electronic system, the ability to use various types of replaceable equipment.
Technical characteristics of the EO-4112A excavator
Diesel, brand
| D-160B-6 | |
| Diesel power, kW/hp | 66 / 90 |
| Replaceable work equipment | straight and reverse shovel, dragline, grab, crane |
| Mechanism control | pneumatic |
| Travel speed in first/second gear, km/h | 2,4 / 4,3 |
| Turntable rotation speed in 1st/2nd gear, rpm | 3,33 / 5,89 |
| Overcome slope of the track, degrees | 22 |
| Working pressure of the pneumatic control system, MPa | 0,7 |
| Average ground pressure, kPa | 65 |
| Traction force on tracks, kN | 98 |
| Overall dimensions, mm | 5300x3100x3400 |
| Excavator weight (without working equipment), t | 20,37 |
Parameters when working with various replaceable equipment
| Backhoe | straight shovel | Dragline | Grab | |||||
| Boom length, m | Boom length, m | |||||||
| Curved Arrow | Station wagon | 10 | 13,7 | 15 | 10 | 13,7 | ||
| Bucket capacity, m3 | 0,8 | 0,65 | 0,75 | 0,65; 0,8; 1,0 | 0,65; 0,8 | 0,6 | 0,65 | 0,65 |
| Max. digging depth (height), m | 6,8 | 5,8 | 7,9 | 7,3 | 10 | 11 | 6 | 8 |
| Maximum unloading height, m | 6,1 | 3,5 | 5,6 | 3,5 | 5,3 | 8 | 7,6 | 9 |
| Maximum digging radius, m | 10,1 | 9,2 | 7,9 | 8 | 10 | |||
| Operating weight, t | 23,7 | 23,55 | 24 | 22,3 | 24,2 | 24,5 | 23,4 | 25,3 |
Dimensions in meters
| A | Distance from the boom axis to the excavator rotation axis | 1 |
| R | Radius described by the rear part of the excavator turntable | 3,405 |
| B | Excavator overall width | 3,100 |
| B1 | Track width | 0,600 |
| B2 | Track width | 2,960 |
| D | Height at the bottom edge of the turntable | 1,043 |
| D1 | Clearance | 0,354 |
| L | Track length | 3,820 |
| H | Height to arrow heel axis | 1,640 |
| H1 | Height of the two-legged stand block | 3,400 |
| H2 | Track height | 0,974 |
| H3 | Height to top of cabin | 3,054 |
Technical characteristics of the excavator when working with a dragline
| Bucket capacity, m3 | 0,65 | 0,8 | 1,0 | |
| Traction rope force, tf | 5,64 | |||
| Lifting rope force, tf | 5,14 | |||
| Hoisting rope speed, m/s | 1,08 | |||
| Traction rope speed, m/s | 0,98 | |||
| Cycle duration when working in a dump with a rotation of 135° in Cat III soils, at an average digging depth, s | 19,1 | |||
| Average specific ground pressure, kgf/cm2 | 0,64 | |||
| Excavator structural weight, t | ||||
| with a 10 m boom | 21,9 | |||
| with a boom length of 13.7 m | 24,6 | |||
| Boom length, m | 10 | 13,7 | ||
| Boom angle, a | 30° | 45° | 30° | 45° |
| Maximum unloading height, m | 3,5 | 5,5 | 5,3 | 8 |
| Digging depth during side passage, m | 4,4 | 3,8 | 6,6 | 5,8 |
| Digging depth at end pass, m | 7,3 | 5,5 | 10 | 7,6 |
| Maximum digging radius, m | 11,1 | 10,2 | 14,3 | 13,2 |
| Maximum unloading radius, m | 10 | 8,3 | 12,5 | 10,4 |
Technical characteristics of the excavator when working with a grab
| Bucket capacity, m3 | 0,65 |
| Bucket lifting speed, m/s | 0,75 |
| Average specific ground pressure, kgf/cm2 | 0,65 |
| Cycle duration when turning 90° at an average digging depth, s | 23,5 |
| Excavator structural weight, t | 22,4 |
| Boom length, m | 10 |
| Overall width of open grab, m | 2,4 |
| Overall height of open grab, m | 2,9 |
| Minimum boom angle, degrees | 45 |
| Maximum digging depth, m | 6 |
| Maximum unloading height, m | 7,6 |
| Maximum digging radius, m | 8 |
Technical characteristics of the excavator when working with a straight shovel
| Bucket capacity, m3 | 0,75 |
| Maximum force on bucket teeth, tf | 11,3 |
| Maximum force on the “Pressure-return” handle, tf | 11,5 / 8,2 |
| Cycle duration when working in transport with a 90° turn on category IV soils at the design face height, sec | 15 |
| Average specific ground pressure, kgf/cm2 | 0,64 |
| Structural weight, t | 23,4 |
| A capacitive bucket can be used. 0.8 m3 when developing soils of categories I - III | |
| Boom length, m | 5,5 |
| Handle length, m | 4,5 |
| Digging depth below parking level, m | 1,5 |
| Minimum digging radius at ground level, m | 2,8 |
| Maximum digging radius, m | 7,9 |
| Maximum unloading radius, m | 7,2 |
| Unloading radius at the highest unloading height, m | 5,4 |
| Maximum digging height, m | 7,9 |
| Maximum unloading height, m | 5,6 |
| Unloading height at the smallest unloading radius, m | 2,7 |
Technical characteristics of the excavator when working with a backhoe
| Bucket capacity, m3 | 0,65 | 0,8 |
| Bucket width, m | 1,16 | |
| Traction rope speed, m/s | 0,98 | |
| Hoisting rope speed, m/s | 1,08 | |
| Boom length, m | 5,9 | |
| Handle length, m | 3,02 | |
| Maximum digging depth, m: | ||
| trenches | 6,8 | |
| pit | 4,64 | |
| Initial unloading height, m | 2,35 | |
| Final unloading height, m | 5,3 | |
| Maximum digging radius, m | 10,00 | |
| Initial unloading radius, m | 5 | |
| Final unloading radius, m | 8,1 | |
| Cycle duration, s | 18,1 | |
| Structural weight, t | 23,85 |
Crawler excavator CASE: price less features
Our catalog presents a wide range of CASE full-rotary excavators on a tracked chassis weighing from 12.8 to 82.3 tons, with engine power from 71 kW / 95 hp. With. up to 397 kW / 532 l. With. Digging depth can vary from 6.05 to 10.5 m, bucket volume ranges from 0.8 m³ to 5.0 m³. According to operating weight indicators, the machines are divided into categories: light (12.8 - 17.4 tons), medium (20.9 - 37.9 tons) and heavy (47.0 - 82.3 tons). In addition to these indicators, a crawler excavator can be purchased in different modifications. Thus, there are machines equipped with rock buckets for quarrying, leveling buckets, large excavators, and special vehicles with a large working area.
DOOSAN excavators, advantages of crawler excavators
| Crawler excavators | Excavators with pneumatic wheels |
Take, for example, crawler excavators
brand DOOSAN, they have a diesel engine with direct injection, liquid cooling system, intercooler and turbocharging. All this results in the highest power indicators of this equipment in its class. Add to this an improved control system and, as a result, reduced fuel consumption, and we get the ideal solution for practical buyers.
The main difference between crawler excavators
What differs from other models is the tracked running mechanism itself.
Thanks to it, excavators
have high maneuverability on any ground surface, as well as high performance regardless of the time of year and weather conditions.
The line of modern crawler excavators is represented by a huge range of models with different characteristics and functionality. The main thing you should always pay attention to is the power and performance of this equipment. However, other criteria are also important, such as technical reliability, the ability to use additional equipment, ease of operation and constant maintenance of equipment.
Note that today excavators
DOOSAN brands of the latest models (we are talking about the DOOSAN DX series) have a great advantage compared to the previous generation (DOOSAN SOLAR). It consists of twice the working resource and half the probability of failures. In terms of environmental standards, the engine of DOOSAN crawler excavators meets the most stringent emission standards.
The secret to today's popularity of DOOSAN crawler excavators lies in the exceptional power of these excavators, which is combined with ease of use and high controllability, which ultimately leads to maximum work productivity.
The design developers tried to create a comfortable place to work on the DOOSAN excavator: a spacious cabin with good visibility allows you to increase the working capacity and speed up the work process of the excavator operator. The cabin maintains an optimal microclimate thanks to a unique built-in split system. The DOOSAN crawler excavator's operational capabilities are enhanced by an improved control panel.
The ease of operation and maintenance of a DOOSAN excavator, its technical reliability and availability of all working systems leads to an increase in its productivity and reduces the time and frequency of equipment maintenance. All this as a whole allows you to avoid equipment downtime and increases its operating time, which will have the best impact on the delivery time of your project.
Sale of crawler excavators of the new C series
It also opened the sale of C-series crawler excavators, where technical and operational indicators have been improved and 5 automatic fuel-saving functions have been integrated. This line uses anti-friction washers made of polymer, which reduce noise levels, tolerances in the joints have become smaller, the boom and handle have become more durable due to forged steel inserts. Thanks to the introduction of innovative engineering and design solutions, the machines have a long service interval and operate more efficiently in difficult conditions. In addition, a synthetic hydraulic filter is used here, which, due to better cleaning, increases the operational life of the machine and reduces maintenance costs. The updated 7-inch monitor allows you to monitor key indicators, while the one-piece side glass and increased glass area provide excellent visibility.
Use of a crawler excavator
Before you buy a crawler excavator, familiarize yourself with the design and technical characteristics of each model. The wide range of CASE excavators was created, first of all, so that the user has the opportunity to choose the modification that will best perform the assigned tasks. After all, this equipment is used, as a rule, in many areas: earthmoving, public utilities, road construction and repair, loading and unloading of bulk materials, demolition and construction of objects for various purposes, extraction of building materials, land reclamation and quarry work.
It is recommended to buy a crawler excavator if you have to carry out work in difficult-to-pass areas and marshy soils. The variety of attachments makes this special equipment more versatile. The working tools used are a grab, a hydraulic drill, pile driver masts, a dragline, a hydraulic hammer, hydraulic shears, hooks, and jaw grips.
Experts will provide you with complete advice on purchasing a CASE excavator.
