Reliable Liebherr truck cranes: advantages of different models

Areas of use of a truck crane

The power of the lift is given not only by its dimensions and appearance, but also by the eight-section boom with telescopic blocks. The Liebherr LTM 1100 truck crane is used in many areas; it is used to carry out:

Liebherr LTM 1100 truck crane in operation

• repair and restoration work;
• construction;
• cargo transportation;
• loading and unloading large cargo;
• housing and communal works;
• ensuring emergency and fire safety;
• clearing away rubble.

Large organizations whose activities are related to production or industry use a truck crane of this model in logistics systems, where wide opportunities open up for unlocking its potential. Liebherr is often used by special units of the Ministry of Emergency Situations of the Russian Federation to rescue citizens and clear landslides and heavy piles.

Liebherr 70 tons

The LTM-1070 tower crane features 14.5t ballast, Liccon-2 safety and performance testing, active steering, hydraulic safety and shut-off valves and air brakes.

Installation of the extension cord is carried out in 4 modes:

• folding 2-section with a base length of up to 16 m at an angle to the boom from 0 to 60°;
• hydraulically adjustable folding with a length of 9-16 m and an angle change of 0-60°;
• mechanical mounting 3.2 m with working angles 0°, 20°, 40° and 60°;
• hydraulically adjustable mounting 3.2 m with angles 0-60°.

The telescopic boom of the crane can be extended from 11 to 50 m.

The machine is equipped with a Liebherr water-cooled turbodiesel with a capacity of 408 hp. With.

Overall dimensions - 3900x6300x12409 mm.

The weight of the machine is 48 tons.

Features of the device and operation

1. Highest possible lifting capacity in its class compared to other four-axle mobile cranes. Powerful telescopic boom, extended with lattice sections and a two-section folding extension. Safe and economical driving is ensured by rear axles with active steering and pneumatic disc brakes. A wide range of accessories included in the basic package. The equipment uses the most advanced technologies to increase functionality
2. The chassis is a six-cylinder unit with a turbine. Engine power is 476 horsepower, and torque reaches 2230 N/m. Power is transmitted through a German-made ZF AS-Tronic automatic transmission. Due to the large number of gears (12 forward speeds and two gears for reverse), it was possible to achieve class-leading fuel efficiency. In addition, we note another important element of the chassis - a two-stage transfer case with a deceleration speed of 0.46 km/h. The kit also includes drive axles 2, 3 and 4. Axle 1 is optional. Among the auxiliary electronic systems, we note ABV technology, which automatically prevents the brakes from locking
3. Maneuverability and smoothness worthy of the heavy class are due to the compact chassis 10.6 meters long. The turning radius is at least 8.3 meters. The truck crane is equipped with tires with parameters 16.00 R 25. The counterweight has a turning radius of 4.1 meters
4. Niveaumatik hydropneumatic suspension – requires maintenance only when necessary. It has a high safety margin even with a load of up to 40 tons per axle. Stable chassis when cornering and a wide range of operating ranges
5. Steering, programmed for five operating modes. The instrument panel has an ergonomic arrangement of levers, switches, indicators and service elements
6. Built-in security system with two independent processors that read readings from instruments and sensors and display information on a central display located in the operator's cab. Thus, the driver is always aware of the status of all instruments and moving parts. If any of the readings deviate from the norm (for example, if the permissible load is exceeded, the pressure drops or the temperature is high), the driver will be able to correct the problem in advance, and thereby prevent the occurrence of larger problems
7. Multifunctional cabin with high quality finishing materials. It has an anti-corrosion sheet steel structure, full protective glazing with tinting, heated and electrically adjustable mirrors. The cabin is also equipped with a seat with pneumatic height adjustment. The driver's cab and operator's cab have similar design and materials.
8. Possibility of installing the crane on supports using electronic control. Supports allow you to achieve the maximum permissible load capacity
9. Six-section telescopic boom – extends to several specific positions depending on the complexity and type of operation. The maximum length is 60 meters. The boom comes with a 19 meter extension. With a boom length of 60 meters, the crane’s lifting capacity reaches 10.2 tons. Load capacity can be optimized with multiple telescoping options
10. Built-in data bus, which is an analogue of a “black box” - an on-board recorder, with the help of which the operation of the truck crane is recorded in real time, and throughout the entire service life of the product.

Dimensions

The pictures show diagrams of the lifting capacity of the boom and jib, as well as a diagram of the dimensions of the truck crane.

Watch a video review of the Liebherr LTR 1100 crawler crane.

Advantages of the model:

• Maneuverability Thanks to the tracked equipment, maneuvers and movement under full load remain well controlled.
• Increased cross-country ability Exceptional cross-country ability in off-road conditions due to the tracked undercarriage.
• High level of safety The operator clearly controls the movement of the crane even under full load.

Crane Features:

• Ready for use quickly
• Universal and long 100-ton boom system. The maximum lifting height is 83 meters!

— The six-section boom extends according to the principle of a telescope, the maximum possible length is 52 meters, while when assembled it is only 11.5 meters

— Telescopic boom extension 2 x 7 m

— Two-section folding extension 10.8 - 19 m

— Mounting extension 2.9 m

• Hydraulic change of extension angle from 0° - 40° under full load (optional)
• High lifting capacity when telescoping
• Installation of finished units in operating mode with two hooks with a second winch and mounting extension
• The guaranteed reliability of the frame is explained by the material of its manufacture – high-grade carbon steel.
• The braking system responds instantly to commands.
• The artificial climate system maintains optimal temperatures in both winter and summer.
• If there is a sudden and unauthorized approach to a source of electricity, a special sensor will notify the operator.
• The truck crane can perform its tasks even in the dark - flashing lights are included in the package.
• The high speed of the truck crane is provided by a 4-cylinder engine.

Where is the Liebherr LTR 1100 used?

• When loading and unloading large cargo
• When installing and dismantling metal structures at height
• During the construction of buildings, including in densely built conditions, such as in Moscow
• During rigging and cargo transportation
• When installing and repairing chillers on the roofs of buildings
• When constructing bridges
• When installing billboards and roof advertising structures

You will find a more detailed description, characteristics and diagrams in this file.

Before sending the Liebherr LTR 1100 truck crane to the customer’s construction site, we test all its components and systems, check the serviceability of the boom extension mechanisms and the integrity of the cables. The price list indicates the basic cost of hiring 50,000 rubles. per shift of 8 hours – the exact price is calculated individually, taking into account all discounts.

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Review and application in practice

The manufacturer offers a large selection of Liebherr mobile pneumatic wheeled and crawler cranes, among which are the following:

• mobile units of the LTM series: 1030-11200;
• small-sized devices of the LTC series: 1050;
• construction vehicle mechanisms with a telescopic boom of the LTF series: 1045 and 1060;
• Liebherr pneumatic wheeled cranes with lattice boom LG series: 1750;
• all-terrain short-wheelbase vehicles of the LRT series: 1090 and 1100;
• tower cranes Liebherr 132 EC-H8 with fixed tower and beam jib.

Crawler crane models include the LR and LTR series with a telescopic boom. The maximum lifting capacity of the equipment is 3000 tons.

The most common model among users is the Liebherr LTM truck crane with a large ballast radius and an all-terrain all-terrain chassis, which affects its mobility and guarantees movement even on unpaved roads. Thanks to VarioBallast technology, the device can be used in tight and confined areas at night.

Liebherr self-propelled cranes are equipped with powerful Liebherr turbodiesel engines with minimal emissions of harmful substances.

ZF gearboxes are automated and economical. The following factors influence this:

• a large number of switching speeds and a dry clutch lead to lower fuel consumption;
• the presence of a 2-speed gearbox on LTM cranes with 3-5 axles allows you to reduce the slow motion speed and increase maneuverability;
• ZF-TC Tronic gearbox with installed torque converter on LTM models;
• ZF 6WG gearbox under load in folded state and installed converter on LTM and LTC with 2 axles;
• a large number of driving axles.

The braking system is characterized by instant response, smooth braking and reduced performance.

The axles are equipped with Niveaumatik hydropneumatic adjustable suspension, which increases the axle load and improves lateral stability when turning.

For large mobile cranes with 5 or more axles, the crane drive is installed from the chassis engine.

The cranes have a Liccon control system with a variable support base, as well as VarioBase technology for accurate load capacity calculations.

The cabin is spacious, comfortable and ergonomic. The driver's soft seat is vertically adjustable and contains a headrest and air support for the lumbar region. Large windows and tinted glass increase visibility. The exterior mirrors are electrically adjusted. The steering wheel is adjustable in all planes. The panel contains multifunctional control devices and indicators.

For comfort during work, ventilation and heating systems have been developed.

The reliability of lifting machines has been proven in practice.

French manufacturer SE Levage presented the operation of the LTM-1300 crane at 12 o'clock at night when lifting a racing yacht to a height of 60 m to the Eiffel Tower gallery in Paris. The advertising medium was installed in pre-assembled mounts.

Wasel GmbH from Bergheim demonstrated the dismantling of large suspended scaffolds at Cologne Cathedral at a height of 100 m using a Liebherr LTM-1750 crane with a maximum hook lift of 154 m.

In the Swiss canton of Valais, with tight bends and steep, gravel-strewn inclines, the LTR-1060 crawler crane proved its off-road capability and maneuverability. He reached the construction site at an altitude of 2022 m along a difficult 920 m high mountain section for the expansion of the Gornergrat rack railway tunnel.

Reliable Liebherr crawler cranes with high lifting capacities

The Swiss company Liebherr is one of the leading companies in the manufacture of specialized construction equipment. The history of the corporation begins back in 1949. It was then that an ordinary engineer, Hans Liebherr, created a family business. Today, Liebherr factories are located in all countries of the world, and the Liebherr family is also at the head of the entire structure.

Unique qualities of Liebherr crawler cranes

One of the main specializations of the engineering company is the production of crawler cranes. This lifting equipment is used in the construction of almost all high-rise buildings. The specificity and purpose of cranes requires ensuring maximum operational safety and efficiency of the mechanisms. It is these qualities that have allowed Liebherr to become one of the leading manufacturers of construction equipment.

Crawler cranes of the LR and LTR series have become widespread among users all over the world.

Liebherr crawler crane The main positive features of Liebherr cranes include:

• Versatility. The equipment can be used not only to lift loads to high-rise objects, but also to install a bucket for quarrying and loading soil;
• Ease of transportation. This is due to the fact that any LR or LTR series crane has a fairly low operating weight and small dimensions;
• The unique self-assembly system of the entire structure eliminates the need to install an additional crane;
• Economical operation and repair. High-tech power equipment is adjusted in such a way as to reduce fuel consumption. If any part fails, replacing it will not cost much money. This is also facilitated by the accessibility of all components of Liebherr crawler cranes;
• Efficiency of use lies in the availability of a modern control system and multifunctional working equipment. A careful approach to each structural component of the crane allowed us to achieve maximum performance and convenience;
• The safety of all work is ensured by full control of the equipment using numerous electronic systems and sensors;
• An improved control system for the lifting mechanism allows you to control the movement of all elements with high accuracy. This not only simplifies the work process, but also protects the entire structure from damage. There are also load limiters here.

Series LR

This includes a wide range of lattice boom crawler crane models that are capable of delivering construction materials to heights of up to 223 metres. The maximum load weight depends on the exact crane model and modification.

The main features include the low weight of all parts, the possibility of self-unloading and assembly, and optimization of load capacity and maximum working height. This ensures the safety of surrounding objects, the construction crew and the safety of the structure itself.

Photo of the crawler crane LIEBHERR-LR-11301 When developing the Liebherr LR series cranes, engineers used the most modern methods and technologies, which made it possible to achieve optimal operational safety and high maneuverability of the crane even when working with dangerous and very heavy loads. This range includes the LR 1280, 1100, 1300 and 1130 cranes.

We consider the technical characteristics of Liebherr LR series crawler cranes in the table:

Each LR series crane model meets not only safety requirements and building regulations, but also satisfies the desires and needs of each customer. Everything here is done as conveniently and comfortably as possible.

LTR Series

A distinctive feature of this series of Liebherr cranes is their high maneuverability and maneuverability.

Liebherr LTR series crawler crane Positive qualities include:

• High stability of the equipment, which is ensured by the presence of tracked running equipment. It does not fail on soft soils. The small distance between the chassis makes it possible to carry out lifting work in cramped conditions;
• Quick and easy installation. Liebherr telescopic cranes are equipped with the function of automatic self-unloading and assembly, so you can do without a special team;
• Ease of use and comfort of control. Every part of the attachment and powertrain is easy to access, making repairs or part replacement a breeze. The driver's seat is equipped with sound insulation, vibration protection, air conditioning and a convenient control panel;
• The telescopic boom allows for numerous modifications to make it easier to work in certain conditions. There is also the possibility of extending the boom using lattice sections.

The main models of this series include LTR 1030, 1060, 1100 and 1220 cranes. Their technical characteristics are presented in the table.

The video shows the capabilities of Liebherr crawler cranes:

Mobile cranes LTM series: All-terrain cranes that set standards.

LTM mobile cranes with off-road chassis are ideal for driving on public roads and rough terrain. They are safe, economical and comfortable.

The powerful and long telescopic booms reach high working heights quickly and easily. Flexibility is a top priority when equipping a crane: The appropriate crane for any application can be quickly assembled from functional lattice sections, extensions, fixed and folding lattice extensions.

With approximately 25 LTM cranes at our disposal, from small 2-axle to large 9-axle, we offer the right crane for every application. We are constantly improving our cranes: VarioBase, VarioBallast, LICCON crane control or telematics are just a few of the innovations from Ehingen, home to the most modern crane production in the world.

In the process of technological progress, we always strive for modernization and offer the latest technologies for existing cranes.

Model range of Liebherr truck cranes

The company covers the entire range of types of self-propelled cranes; the following series exist:

LTM - telescopic cranes on off-road chassis. In addition to the fact that the machines can pass on any ground (this is not uncommon on our construction sites), they also have high speed when driving on the highway. The most powerful telescopic crane in the world is the Liebherr truck crane Liebherr LTM 11200-9.1 (Liebherr truck crane 1200 tons).

LTF - construction taxi cranes, differ in that they can move loads without extending and fixing additional outrigger supports. A crane that arrives at the site is immediately ready to begin work, which gives them a tangible advantage in the case where the crane’s operating mode does not require constant presence in one place, but requires constant movement to perform short-term work.

Description of the Liebherr LG 1750 truck crane

LG - high-capacity cranes with a lattice boom. New 750 ton self-propelled lattice boom crane. Liebherr has expanded its range of heavy self-propelled cranes with the LG 1750 lattice boom crane.

It combines the flexibility of a 750 tonne crawler crane with the mobility of a fast moving truck crane in the same lifting capacity category.

For the LG 1750, Liebherr used the slewing crane and jib system of the LR 1750 crawler crane, as well as a completely newly developed six-axle compact chassis with a modern design. Four very strong and large folding beams form a star-shaped support with a support base of 16 x 16 m. They dominate the appearance of this special crane chassis. Table 1 - Technical characteristics of the Liebherr LG 1750 truck crane

LTC - compact telescopic cranes. Thanks to the special design of the chassis and lifting mechanism, they are able to work in cramped conditions, which is not uncommon on modern construction sites with dense urban areas. This ability of the machines also allows them to be used effectively when performing emergency repair work on various communications.

MK - self-propelled tower cranes. Unlike traditional cranes of this design, which move on rails, they can reduce the time required to set up a construction site and, consequently, the construction time of the facility.

LTR Series

A distinctive feature of this series of Liebherr cranes is their high maneuverability and maneuverability.

Liebherr LTR series crawler crane

Positive qualities include:

• High stability of the equipment, which is ensured by the presence of tracked running equipment. It does not fail on soft soils. The small distance between the chassis makes it possible to carry out lifting work in cramped conditions;
• Quick and easy installation. Liebherr telescopic cranes are equipped with the function of automatic self-unloading and assembly, so you can do without a special team;
• Ease of use and comfort of control. Every part of the attachment and powertrain is easy to access, making repairs or part replacement a breeze. The driver's seat is equipped with sound insulation, vibration protection, air conditioning and a convenient control panel;
• The telescopic boom allows for numerous modifications to make it easier to work in certain conditions. There is also the possibility of extending the boom using lattice sections.

The main models of this series include LTR 1030, 1060, 1100 and 1220 cranes. Their technical characteristics are presented in the table.

The video shows the capabilities of Liebherr crawler cranes:

Technical characteristics of Liebherr truck cranes

This type of equipment is produced on the basis of chassis manufactured by Liebherr. Such truck cranes belong to the category of self-propelled equipment and can move under their own power along public roads without the need to use additional equipment for transportation.

The wheelbase itself is equipped with a multi-axle suspension, where each axle has its own independent control, thereby increasing maneuverability and cross-country ability. When moving along roads outside construction sites, such truck cranes can move at speeds of up to 80 km/h. All this allows you to save time and resources for moving the crane.

The features of the crane control system make it possible to control the movement of the truck crane boom with the highest precision, while the error in the movements of the moving elements of the boom is only a few centimeters.

Separately, the designers were faced with the task of providing the operator of the equipment with maximum comfort during the work process. Hence, convenient controls, air conditioning and heating in the cabin, as well as safety features and a cabin with a large glass area that increases viewing angles.

Advantages of renting a crane 400

Businesses often need special equipment from time to time, so in order to avoid downtime of expensive equipment, it makes sense to rent a Liebherr LR 1400 as needed. This approach eliminates the cost of purchasing, maintaining and maintaining special equipment. Cooperation with our company guarantees our clients mutually beneficial terms of cooperation. In particular, our company undertakes the delivery of a crane with a lifting capacity of 400 to the construction site - the design of the machine allows it to be quickly assembled and dismantled for convenient logistics. The customer company is provided with a working model, which can immediately begin performing the planned work. The machine is controlled by a highly qualified operator. So, renting a 400 ton crane is a profitable alternative to expanding your own fleet.

Load capacity and other properties of the Liebherr crane

German manufacturers produce several models of Liebherr cranes with a tonnage of 40, 50, 70, 100 tons. The Liebherr LTM 1100 truck crane has the maximum lifting capacity. In general, lifting capacity indicators depend on the height of the boom and have the following ratio:

Load capacity of Liebherr LTM 1100

• 11.5 m – 100 t;
• 15.2 m – 65 t;
• 26.4 m – 51.3 t;
• 33.9 m – 32.8 t.

The Liebherr mobile crane's lifting capacity is increased by many telescoping options. High load capacity allows you to transport large-sized equipment and fragile items in a vertical and horizontal plane. Electronic control allows you to install special supports on the truck crane, due to which the maximum possible lifting capacity increases.

The special vehicle has a built-in data frame, like an on-board black box, which records the operation of the crane in real time. The mobile crane's maneuverability and compactness are ensured by its turning radius, which is 11.01 on all-wheel drive. The counterweight has a turning radius of 4.1 m.

Liebherr truck cranes: photos, characteristics, price

Liebherr is a group of companies known throughout the world. It was founded in 1949 by Hans Liebherr. The headquarters is located in Biberach an der Ries, Baden-Württemberg, Germany. The group includes a total of more than 130 companies around the world. They employ about 44 thousand people. The profile of activity is the production, sale and service of refrigeration equipment, port, mining, construction, and other equipment. Liebherr cranes work on a wide variety of sites, including in extremely difficult conditions (high or low temperatures, dust, excessive vibrations).

The range of products is truly huge. For example, a Liebherr port crane can be either stationary or mobile. And the Liebherr LPS series portal crane, thanks to its rotating design, is perfect for handling various cargoes. The configuration is selected individually.

Liebherr 40 tons

The Liebherr LTM-1040 model is designed for a load capacity of 40 tons. The frame is made of high-strength fine-grained steel and has a rigid spatial structure.

The car is equipped with a 6-cylinder Mercedes-Benz turbodiesel with a power of 286 hp. liquid cooling.

The length of the 4-section telescopic boom varies between 10-35 m. The mechanism extends steplessly using a hydromechanical telescoping system.

Machine performance:

• crane travel speed - 80 km/h;
• maximum lifting height - 39 m;
• overall dimensions in structural design - 3600x6000x10490 mm;
• weight - 24 tons.

Technical data - LR Liebherr

Note. All listed data is checked by experts from the LECTURA Specs team. However, incomplete data and errors may occur. Contact our team with any change suggestion.

incl. hook holder/we

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Liebherr crane design

The technical characteristics of the Liebherr 100 ton make it stand out from other mobile cranes. The basis of the model is an all-terrain four-wheel chassis, the drive of which has 8x8x8 dimensions. The pride of this piece of special equipment is a 60-meter telescopic boom with 7 sections. The boom is designed to lift loads with a tonnage of up to 100 tons, while the boom reach can reach three meters relative to the axis of rotation.

Liebherr LTM 1100 truck crane

The Liebherr LTM crane design includes:

• turbodiesel engines with the least amount of toxic emissions;
• chassis with a six-cylinder diesel engine and automatic transmission, with three main and one additional drive axle;
• separate cabins for the operator and driver, which, in turn, simplifies the control process;
• pneumatic disc brakes;
• a safety system based on a number of safety valves, brakes and limiters.

Crawler crane Liebherr LR 1400 – 400t

The Liebherr LR 1400 crawler crane has a high lifting capacity.
This highly professional special equipment is a universal choice for solving a wide variety of problems. Since the highest quality materials, modern technologies and software are used in the production of products from the German brand, the 400 ton crane can adapt to any operating conditions. Reliable tracks and high-quality suspension allow the machine to move smoothly on any terrain, while guaranteeing high performance and safety. The Liebherr 400 crane is equipped with a simple control panel and is distinguished by the accuracy of moving loads. This model is deservedly in demand in a variety of areas from construction to warehouses and industrial enterprises - with the help of a 400 ton Liebherr crane, building materials, large equipment, metal structural elements and other heavy loads are transported.

Review of Liebherr truck crane models

The line of self-propelled cranes of the German company is more than wide. It contains models for a variety of client needs. Some are relatively compact. Others, on the contrary, are real giants:

1. LTC Series. Compact three-axle machine with a minimum turning radius. This quality is achieved thanks to the rotating first and third axes. Liebherr positions these truck cranes as ideal for working in tight spaces, for example, on a factory floor. The chassis is its own, the cabin is single. The lifting capacity of the only modification 1050-3.1 is 50 tons.
2. LTM Series. Truck cranes with axles from two to nine. Load capacities range from 35 to an incredible 1,200 tons. The largest of them - Liebherr LTM 11200-9.1 - at the time of its display to the public (2007) had the largest power and boom length in its class (100 m without jib).
3. LTF series. Based on standard automobile chassis of European manufacturers, at the customer's choice (for example, Scania), which can significantly reduce operating costs. The carrying capacity of a four-axle vehicle is 45 or 60 tons.
4. LRT series. Includes two modifications for 90 and 100 tons. The main feature is its high cross-country ability. This quality is facilitated, among other things, by tires with developed lugs. In addition, both axles can be rotated, so the crane can have excellent maneuverability.
5. LG series. The lattice boom structure, provided by the LR 750 crawler crane, is mounted on a wheeled chassis with eight axles. This is how the LG 1750 wheeled crane turned out, which can carry up to 750 tons with a boom reach of 7 meters.

Photos of mobile cranes

Even those who are far from the construction industry and are simply interested in technology can spend hours admiring photographs and videos of these beautiful German machines. Of particular interest, of course, are the larger self-propelled cranes, primarily the huge LTM 11200-9.1.

Characteristics

The main parameters for mobile cranes are maximum lifting capacity and maximum boom radius. They cannot be achieved simultaneously, since the crane can lift and carry a lot of cargo only with a short reach (usually up to several meters).

In addition, engine characteristics are important - displacement, maximum power and torque. And if “modest” self-propelled cranes have one motor, then larger vehicles are equipped with a separate diesel engine specifically to drive the crane equipment. For example, the main engine on a 750-tonne crane is an eight-cylinder with an output of 505 kW (686 hp). And the crane unit is powered by a more modest six-cylinder diesel engine with a power of only 300 kW (408 hp). Both are of their own production, although Liebherr also cooperates in this area with Mercedes-Benz.

Such equipment, as a rule, is not sold at dealer sites - the order is placed and carried out individually, depending on the requirements of a particular customer. But you can focus on the price of used equipment. For example, a compact 55-ton Liebherr LTC-1055 - 3.1 from 2009 will cost 20.5 million rubles. A four-axle 100-ton Liebherr LTM 1100-4.2, 2006, costs about 66 million rubles with all taxes. And for the giant Liebherr LTM 11200 - 9.1 of the same 2016 release they are already asking 335 million rubles with delivery by sea to Russia, but excluding customs duties.

Liebherr on wheels

Mobile cranes are equipped with a telescopic boom, including the super-strong 9-axle LTM 11200-9.1, nicknamed Mammoth. Wheeled cranes are labeled LTM. The chassis are equipped with Daimler-Benz power units or Liebherr's own engines. Telescopic working bodies allow you to work in cramped conditions, increase maneuverability when lifting and simplify control. Let's consider the main technical indicators of wheeled vehicles:

• The range of 40-ton machines is presented in three types: LTM 1030-2.1, 1040-2.1 and 1045-3.1. The differences between them lie in the load capacity and length of the working body: with a reach of 3 m, the load capacity is 35, 40 and 45 m, the lifting height is 30, 35 and 48 m, respectively. Models are equipped with jibs and extensions that allow the boom to be extended up to 16 m.
• LTM 1050-3.1 and 1055-3.1 are representatives of 50-ton models. The first model is capable of lifting a load weighing 50 tons when extending a boom 3 m long to a height of 38 m, the second - 55 tons when extending the boom 2.5 m and a height of 40 m. Jib - 16 m.
• LTM 1070-4.1 on an all-terrain chassis develops a load capacity of 70 tons with an outreach of 2.5 m. The length of the boom is 50 m, the jib is up to 16 m.
• 100-ton machines are the most numerous LTM family. The Liebherr 100 ton truck crane is available in the following modifications: 1090-4.1 (lifts 90 tons when extended by 2.5 m, lifting height 50 m), 1095-5.1 (lifts 95 tons when extended by 2.5 m, lifting height 58 m) , 1100-4.1 (lifts 100 t when extended by 2.5 m, lifting height 52 m), 1100-5.2 (lifts 100 t when extended by 2.7 m, lifting height 52 m), 1130-5.1 (lifts 130 t when extended by 3 m, lifting height 60 m), 1160-5.1 (lifts 160 t when extended by 3 m, lifting height 62 m). The number 4 in the model index means a 4-axle chassis, 5 means a 5-axle. Depending on the specific model, the machines are equipped with sliding jib arms, increasing the length of the working body to 26, 33 and 43 m. The Liebherr LTM 1100-4.1 truck crane is equipped with a forced control mechanism for the rear axle of the chassis.

• LTM machines with a lifting capacity of 200 tons are available in three varieties: 1200-5.1 (lifts 200 tons with a reach of 3 m and a lifting height of 72 m), 1220-5.2 (lifts 220 tons with a reach of 3 m and a lift height of 60 m), 1250-6.1 (lifts 250 t with a boom length of 3 m and a lifting height of 72 m). Jib arms – up to 43 m, for the latest model – up to 70 m. LTM 1300-6.1 lifts 300 t with a reach of 3 m, the working body extends up to 60 m. The extension adds up to 70 m.
• LTM 1400-7.1 handles loads of up to 400 tons with an extension of 3 m. The length of the boom is 60 m, the length of the extension is up to 84 m.
• The LTM 1500-8.1 is equipped with a boom with a lift of up to 84 m, a maximum lifting capacity of 500 t with an extension of 3 m, and a jib length of up to 91 m.

About the manufacturer

In 1949, Swiss engineer Hans Liebherr headed his parents' construction company in Germany.

In the post-war years, the country was sorely short of equipment for housing construction, then Hans and a group of designers created their first quickly erected slewing tower crane.

At the same time, Liebherr founded a machine-building plant in the German city of Kirchdorf an der Iller for serial production of these machines.

This is how the Liebherr family business was born. Gradually mastering different areas of industry, the company built more and more factories and representative offices around the world, today there are already more than 130 of them.

In 2011, a plant was launched in Russia in the Nizhny Novgorod region.

The group of companies produces different types of equipment. The holding produces mining, mine, port equipment, marine cranes, concrete transport, concrete mixing, refrigeration/freezing equipment, aircraft parts and aerospace equipment.

The group of companies has paid the greatest attention to construction equipment since its founding.

Review of Liebherr tower crane models

Liebherr is the world's largest supplier of tower cranes. The largest construction projects in the world trust this company. In particular, 55 such cranes were used at once for the construction of Istanbul Airport. The line includes dozens of different models. For example, the Liebherr single tower crane, due to its low height, is more suitable for working under high-voltage lines and in intersecting work areas. Another advantage is the fastest and simplest installation. Thus, it can be brought into working order in a short period of time and, in addition, with a minimum number of employees. All this is saving resources.

The modular design allows each unit to be custom-made to be as efficient as possible under specific conditions.

If you look at photographs from construction sites around the world, you will almost certainly see Liebherr cranes.

Specifications

Depending on the specific modification, a liebherr tower crane can carry from one and a half to 50 tons. The maximum boom reach varies from 50 to 81.5 meters. In addition, there are many more parameters that influence the choice of one design or another.

Liebherr track loaders. More than just an alternative

Yu. Petrov

Tracked loaders are practically little known in Russia, although approximately 2,000 of these machines are sold annually throughout the world. The main markets for track loaders are the USA, central and southern Europe. They are widely used in construction, and in Russia their use is limited to the forestry, oil and gas and mining industries.

Track loaders were one of the defining machines on construction sites until the mid-1970s and were used to solve a wide variety of tasks. This was primarily due to the fact that consumers were more interested in the versatility of using equipment in various conditions: bulldozing, leveling, loading work, excavation, uprooting, soil filling. Tracked loaders meet these requirements, since they have high cross-country ability, they are distinguished by great maneuverability, develop a large pressure force and can be used as a tractor for vibratory rollers, compactors, and on the boom they can be installed with a grade master, a crusher and other equipment, load forks, jaw grip for assortment, etc.

Previously, most track loaders were built on industrial track-type tractor chassis, with a front-mounted engine and a rear-mounted operator's cab. Liebherr was among the first to reconsider the traditional approach to forklift design.

Liebherr designers were among the first to draw attention to the fact that the ideology of designing an industrial tractor or bulldozer is completely unsuitable for industrial tracked loaders. Firstly, it is important for the operator to see the front end and last but not least the rear, as the loader rarely operates with ripper equipment. Secondly, the use of power is necessary to drive the working parts, and not the chassis. Although loading into the bucket is carried out under the pressure of the chassis, the main power is needed to create the maximum force for tearing off the edge of the bucket, simultaneous lifting and unloading of the bucket. This speeds up loading and reduces cycle times. Thirdly, the greatest impact in loaders is achieved through the use of a Z-shaped lever system (instead of a parallelogram), which allows for high material tearing force by the bucket, reduces the number of lubrication points and ensures quick tipping of the bucket when unloading. These basic principles form the basis for the concept of all modern Liebherr tracked loaders.

The designers' conclusions made it possible to design track-type loaders with the engine located at the rear of the machine. This solution made it possible to increase visibility from the operator’s seat and reduce the operating weight of the machine (the engine is used as a counterweight). A good weight-to-power ratio while maintaining load-carrying characteristics made it possible to use less powerful, fuel-efficient engines.

Among the other advantages of this layout, we note the radiator, located in the least dusty area, and loading equipment with Z-shaped kinematics, which is difficult to use with a front-engine layout. However, that's not all.

To improve performance, loaders use a hydrostatic transmission. A track loader is characterized by frequent maneuvering and changing direction, which means that the transmission, steering friction clutches, brakes and track are subject to high loads. The main advantage of hydrostatic transmission has made it possible to reduce operating costs, increase power availability and reduce downtime due to equipment breakdowns, since there are no wear parts such as friction clutches and brakes, and changing the direction and braking of one “side” is carried out by changing the flow of hydraulic fluid in the drive of one of the caterpillars In addition, to perform some types of work (for example, at landfills for solid waste, excavation and development of sticky soils and soils with reduced bearing capacity) a smooth increase in power is required, which mechanical gearboxes cannot provide.

New technical solutions have created a generation of track loaders with excellent visibility, easy operation, reduced operating weight, high traction, cutting force and high tipping loads.

Currently in the Liebherr production program there are two basic models - LR 622 B and LR 632 B. They are produced in various equipment and configuration options: swamp, for work in sanitary landfills, in the forestry and mining industries, in construction and industrial versions. In addition to standard buckets with a capacity of 1.75...2.1 m3, all loaders are equipped with universal double-jaw buckets, which consist of a bucket and a blade segment that can be opened and closed. Referred to as a four-in-one, these buckets can be used as a bucket, dozer, scraper or double-jaw clamshell bucket. The main technical parameters are given in the table, although it should be said right away that the weight and size indicators and dimensions of the tracks may vary.

The Liebherr LR 622 B and LR 632 B models are optionally equipped with three-post picks, providing a depth of 352 and 385 mm, respectively. The distance between the ripper teeth is 850 and 900 mm. The loader cabin is ROPS/FOPS compliant as standard, although an open cabin with ROPS protection (for mining and forestry) is available as an option.

Liebherr equips its loaders with diesel engines of its own production: LR 622 B – 132-horsepower (at 2000 rpm) 6.7-liter in-line four D 924 TE; heavier models LR 632 B and LR 632 BM - six-cylinder 10-liter diesel engines D 926 TI-E with a power of 180 hp. at 1800 min-1. Both engines are specially designed for harsh machine operating conditions; They are distinguished by increased engine life, equipped with turbocharging and intercooler. The hydraulic drive allows you to smoothly change the rotation speed of the radiator fan depending on the engine load. The dual-range hydrostatic transmission allows you to continuously increase speed from 0 to 6.5 km/h in 1st gear and from 0 to 11 km/h in 2nd gear. Automatic speed control eliminates control errors due to overload. Control is carried out using a joystick, which reduces the load on the operator and allows him to concentrate on work. Control of all the most important functions of the machine and protection of units from overloads is carried out by the proprietary Litronic control system.

Liebherr LR 632 B track loaders are widely used in tunnel construction and underground mining. These modifications are equipped with an exhaust gas afterburning system and a special protected cabin. To operate in low ambient temperatures, Liebherr track loaders can be equipped with an Arctic package, which includes a thermal insulation kit, thermostatic fan control, engine auxiliary heater, pre-heater and cold-resistant rubber products. In addition, there are modifications for work in landfills (with a bucket of increased capacity), swamps (wide tracks), construction, forestry and metallurgical industries.

Notes on Capacity Tables

1. Load capacity tables are calculated according to EN 13000.
2. When calculating load capacity tables, a minimum wind speed of 9 m/s (33 km/h) and windage (wind area) of the load of 1 sq. were accepted. m per ton of lifted cargo and the coefficient of air resistance of the cargo is 1.2. When lifting loads with a larger windage and/or a high air resistance coefficient, it is necessary to reduce the maximum wind speed indicated in the lifting capacity tables.
3. Load capacities are given in tons.
4. The weight of the load hook and/or hook hanger is part of the load and must therefore be deducted from the load capacity.
5. Reach is measured from the center of rotation.
6. The lifting capacity for the telescopic boom is valid when the folding extension is removed.
7. It is possible to change the load capacity values.
8. Lifting capacities above 82.6 t/97.7 t are only possible with an additional hook holder/rope block.
9. This article is intended for general information. Without exception, all data is provided without obligation to comply with it. Instructions for properly commissioning the crane can be found in the operator's manual and capacity charts.

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