Terex excavators are multifunctional, high-performance machines designed for digging and loading work in the transport, bulldozer, construction and municipal sectors. The equipment was developed by the diversified global manufacturer Terex Corporation together with the Russian corporation Russian Machines (RM).
Thanks to such fruitful cooperation, a number of new products were created on the road construction equipment market:
- TLB backhoe loaders;
- mini excavators;
- wheeled excavator;
- Terex crawler excavator;
- motor grader;
- all-terrain vehicle;
- front and fork loaders;
- reloaders.
A brief review will present a line of excavators with a wide range of capabilities and maximum productivity, including models such as Terex 820, TLB 860, Terex 970 Elite, the upgraded Terex TLB 825 loader, and the Terex mini-excavator. Below is a description of these machines and their technical characteristics.
Description of the technique
The Terex backhoe loader works great on any construction site. The machine operates safely on heavy soils and is ready to perform highly complex work, such as:
- land planning;
- arrangement and movement of soil;
- digging pits and ditches;
- removal of construction waste;
- snow clearing;
- and much more.
For faster replacement of working equipment, the backhoe loader is equipped with hydraulic piping. In general, the company produces classic all-wheel drive backhoe loaders with the ability to disable the front axle when driving on public roads.
Terex produces several models of tractors
terms of Use
The entire Terex range can be used in harsh conditions from polar zones to hot deserts. The equipment can operate in any weather, regardless of high or low temperatures, precipitation and other negative factors. This means that the Terex 860 backhoe loader can be used in any region and in any climate. Machines of this brand are used in construction and road work, in small quarries, in the dismantling of buildings, etc. A detailed operating manual is included with each model.
New models - new perspectives
The end of last year was especially fruitful for new excavator equipment.
, part of the RM-Terex structure, at the end of 2022, offered consumers three new models of full-rotary crawler excavators, corresponding to the best world analogues. Two of them – TX270 and TX300 – are completely new heavy-duty machines, previously not represented in the Tver plant’s lineup. The third – TX220 – is a further development of the previous model TX210, which belongs to the most popular class of 20-ton excavators.
The production of excavators weighing from 20 to 30 tons allowed us to expand the model range, complementing the line of wheeled vehicles with tracked models, as well as enter the most capacious and promising segment of earthmoving machines and increase our market share. Crawler excavators weighing 20–30 tons, the most popular on the market, are widely used in various fields: in industrial and civil construction, road construction, oil and gas production, mining of non-metallic materials, construction industry enterprises, demolition of buildings, land reclamation facilities, etc. etc. Crawler excavators of these standard sizes, due to their versatility, are successfully operated at both small and large sites, combining high productivity and cross-country ability.
The launch of mass production of the TX300, TX270 and TX220 excavators was preceded by long-term large-scale tests under real operating conditions at construction sites and in quarries. The new machines have successfully proven themselves in excavation work with soils of categories I–IV, including rocky and frozen soils.
It is important to note that the release of a new series of excavator equipment was not preceded by a comprehensive modernization of the production line. In particular, the method of shot blasting metal was introduced in the welding production, new semi-automatic equipment for welding was introduced, the component dispatch area was reorganized, and the transition to robotic welding of working equipment was made.
We’ll tell you more about two representatives of the new series of TX crawler excavators, the smallest and the largest.
The lineup
Tractor models:
- Terex TLB825;
- Terex 860SX;
- Terex 970 Elite;
- Terex 860;
- Terex 820;
- Terex TLB 890;
- Terex TLB840;
- Terex 880SX.
Among the most common models, a special place is occupied by the Terex 860 excavator loader . This is an all-wheel drive car with a switchable front axle and larger wheels. This is a classic wheeled tractor of a frame design with comfortable hydrostatic steering and self-adjusting disc brakes on all wheels. It is one of the leaders in sales in Russia, so the technical characteristics will be considered using its example.
Another popular model is the TLB Terex 825 backhoe loader. Since 2012, it has been produced in Russia, at the Tver Excavator Plant. It is a modernized version of model 815. Designed for excavation and loading and unloading work, it works successfully with a variety of attachments.
The tractor operates in various weather conditions
Specifications
Technical characteristics will be considered using the example of the Terex 860 model. It has two modifications: the basic SX and Elite, which has a different bucket position, but does not differ in other parameters.
Among the characteristics of the loader, special mention should be made of the relatively high transport speed of 41 km/h. This significantly reduces the time required for transportation. For this reason, all models are equipped with a flashing light as standard. Equipment moves from the parking lot to the construction site and back under its own power during the work shift. The advanced Terex fuel system further reduces operating and transportation costs.
Dimensions:
- length - 7.338 m;
- width – 2.311 m;
- height – 2.77 m (at the top of the cabin) / 3.76 m with the working equipment boom folded.
Machine weight - 8125 kg. The useful volume of the bucket is 1.1 cubic meters.
Engine
The vehicles are equipped with an American Perkins diesel engine. This is a powerful 101-horsepower motor that is installed on many Terex models. It provides fairly low fuel consumption - 59.8 hp. / hour Given the large volume of the fuel tank (130 l), the equipment can operate without refueling, which minimizes the likelihood of downtime. The engine allows the vehicle to reach a speed of up to 41 km/h, which allows the vehicle to be driven to the site under its own power, saving on special equipment for transportation.
Engine - Perkins 1044С-44Т:
- volume - 4.4 l;
- power - 101 hp / 74.5 kW;
- type of cooling - liquid;
- fuel type - diesel;
- fuel consumption - 59.8 g. hp. / hour
Fuel tank volume - 130 l. Maximum speed is 41 km/h.
Chassis
The design is based on a welded frame, which ensures rigidity and safety of the body. The main components and assemblies are installed on the frame. Planetary final drives are used.
The brake system is an independent multi-disc maintenance-free brake of the “wet” type, that is, located in oil baths. The transmission on this model is semi-automatic or fully automatic.
Steering
The Terex 860 SX is equipped with hydrostatic steering. The steering column is adjustable, increasing operator comfort throughout the entire shift. On the column there is a lever for connecting and disconnecting the front axle, which makes it easy to change from four-wheel drive to rear-wheel drive and vice versa. An emergency manual mode is also provided.
The tractor can be equipped with various types of attachments
Hydraulic system
The hydraulic system is a closed type, equipped with dual gear pumps. The adjustment depends on the load and comes with a division of flows. The pumps pump through themselves up to 160 l/min and provide a pressure of up to 225 bar in the system. Damping valves protect against sudden pressure changes.
An important feature of the system is the use of hydraulic fluid for both the hydraulic and brake systems. This simplifies monitoring and replenishment of the fluid level: it is enough to check only the hydraulic tank.
Operator's cabin
The new comfortable cabin has become a kind of calling card of the latest Terex models. The developers have taken a number of measures to make the driver’s work as easy as possible.
Main advantages of the cabin:
- low noise level (below 76 dB);
- excellent visibility due to panoramic glazing;
- the ability to fix the rear window in the raised position for natural ventilation;
- adjustable sprung seat.
- safety belt.
The battery is located under the entry step into the cabin. The steps are self-cleaning, which is especially convenient when working in the off-season and snowfalls. The three-speed heater ensures a comfortable temperature in the cabin. If desired, you can install air conditioning.
The designers took a number of safety measures: they installed an audible and visual parking brake alarm, and also provided for alarms to be triggered when critical oil and coolant temperatures, engine oil pressure and the condition of the hydraulic system and air intake system filters are reached. On the outside, there are dual rear-view mirrors and the taillights are adjustable. In conclusion, it is worth noting the convenient touch buttons on the control panel.
Backhoe Loaders
TLB loaders created on a tractor base include the following models:
- Terex 820;
- Terex 860;
- Terex 880;
- Terex 970.
A special feature of excavators is the presence of a multifunctional (7 in 1) bucket and backhoe, which allows you to work with soil types I-IV. Thanks to this equipment, the technique is used for the following work:
- digging, scooping up soil;
- trench digging;
- backfilling with earth;
- moving cargo with a fork over short distances;
- cutting soil with a scraper;
- profiling;
- lifting the load using a lifting eye;
- loading with a grab onto vehicles and into the dump.
They have the following characteristics:
- high versatility;
- reliability;
- accuracy;
- operator comfort without reducing productivity;
- ease of maintenance;
- long service life.
With the help of a widespread dealer network, equipment owners do not have problems purchasing spare parts for units.
Main differences between the models
The equipment is equipped with a powerful English-made 4-cylinder diesel engine Perkins 1104D-44T, which is characterized by high quality workmanship, reliability and durability thanks to the Sigma 6 control system. This mechanism meets gas emission requirements: EU Stage 3A and US EPA Tier 3.
The Terex 820 backhoe loader is equipped with a motor with a net power of 70 kW or 93.8 hp.
The weight of the machine is 7710 kg with the following overall dimensions:
- length - 7300 mm;
- height - 2800 mm;
- width - 2300 mm;
- working height - 3800 mm;
- wheel platform - 2130 mm.
The Terex 860 backhoe loader has an engine with a power of 74.5 kW (100 hp), has a weight of 7370 kg and overall dimensions:
- length - 7338 mm;
- width - 2311 mm;
- height - 2770 mm;
- transport height - 3762 mm.
The Terex 970 backhoe loader has a 74.5 kW or 100 hp engine.
The machine parameters are as follows:
- weight - 7537 kg;
- length with working equipment - 7325 mm;
- width with bucket - 2387 mm;
- width along support legs - 2115 mm;
- height with folded bucket - 3802 mm;
- cabin height - 2810 mm;
The engine delivers power at the right time and, together with a 4-speed synchronized gearbox with servo shift drive or power shift drive, ensures quick filling of the bucket.
The maximum digging depth of the handle has the following values:
- for the Terex 820 model - 4.5 m;
- for the Terex 860 backhoe loader - 4.44 m;
- for 970 Elite - 4.43 m.
According to this indicator, the equipment is similar to hydraulic excavators.
Key performance indicators and features
Loaders have a high transport speed, which allows for quick and easy movement between operations.
The double transport lock of the backhoe and the ability to activate the brake drive on 2 or 4 wheels ensures the safety of the operator during work.
Excavators are equipped with a comfortable panoramic cabin with various functions provided by the manufacturer for synchronous operation of the operator and the unit.
The cabin has the following advantages:
- wide front and rear visibility;
- low noise level;
- adjustable steering;
- convenient location of controls and instrumentation;
- ergonomic handles;
- operator's seat with spring or air suspension;
- easy access;
- equipped with a certified system of protection against overturning and falling objects;
- the presence of a highly efficient heater;
- availability of air conditioning.
A 500-hour service interval, large fuel tank, and easily accessible battery reduce downtime and reduce lifetime operating costs.
Excavator Maintenance
The instruction manual and the official Terex website contain detailed information about the maintenance intervals for each model. General recommendations are standard for any special equipment: before changing, make sure there is a sufficient level of engine oil and fuel and sufficient air pressure in the tires, inspect the main components and mechanisms for oil leaks.
Let us recall the volumes of filling tanks on the Terex 860:
- fuel tank - 130 l;
- cooling system radiator - 16 l;
- engine crankcase - 8.5 l;
- transmission - 23 l;
- rear axle - 17.5 l;
- front axle - 12.5 l;
- hydraulic system - 143 l.
Cost of Terex equipment
The price of a Terex excavator depends on the model and year of manufacture. A used Terex 825 can be purchased for up to 3.9–4.5 million rubles. 860s can be found cheaper - from 1.5 million rubles. Considering that the backhoe loader is professional special equipment, the price is very reasonable. New copies of this model will cost 7 million rubles.
The last twelve years have seen a growing demand for equipment rentals. Leasing or renting allows you to reduce costs and use the car as much as you need. In addition, renting allows you to recoup part of the purchase costs in a short time.
TX300: first time in the heavy class
TX300 is the flagship model in the RM-Terex line. Due to its high technical and operational characteristics, this machine is intended for work in quarries, for large-scale construction, and for use in the oil and gas industry. The excavator operates confidently on rocky and frozen soils of category IV, at temperatures from –40 to +50 °C. Like the “junior” model TX220, the heavy excavator is equipped with an intelligent control system with seven operating modes, “smart boom”, “increased digging force”, “autogas” functions and a hydraulic circuit for connecting active working parts. The arsenal includes all types of replaceable working equipment used on excavators of this class.
The 190 kW YaMZ-536 engine installed on the TX300 provides one of the best power indicators in its class. The excavator is characterized by high operating parameters: bucket volume up to 1.6 m3, digging depth – 7.64 m, digging radius – 11.29 m, unloading height – 7.4 m, digging force – 200 and 180 kN on the bucket and on the handle respectively.
Assuming that the model will be subjected to increased loads and operated far from technical bases, the manufacturer has taken measures to increase reliability and simplify equipment maintenance. The standard equipment of the TX300 includes an automatic centralized lubrication system for all joints of the working equipment and the slewing bearing. Using the program, you can set the frequency of lubrication depending on the intensity of use. Thus, the system is aimed at increasing the working life of the machine.
