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Brick after brick – this is fast becoming a thing of the past on today’s construction site. Prefabricated components, such as filigree concrete covers, have long been part of everyday routine. Both cost and time pressure along with increasing safety requirements mean loads have to be handled with particular care. The Micromove function allows the crane operator to perform positioning with sensitive precision.
To make work with critical components easier, Micromove fine positioning mode comes with two advantages: Firstly, the workpieces can be placed down with the utmost care and precision at micro-speed and full control lever distance. Secondly, components can be kept suspended without the brake taking effect. This guarantees a smooth and gentle restart.
So as not to disturb concentration and avoid interruptions, the Micromove function can be activated directly at the control lever. No matter whether via radio-control or in the cabin – Micromove is always just the touch of a button away.
Above all in inner cities, sites are often small in terms of space and adjoin buildings that you need to avoid when slewing with loads on the hook. In particular traffic routes such as rail tracks and motorways as well as public facilities such as nurseries have to be kept out of the working range. As every metre counts for you, the Litronic operating-range limiting system now offers even more teaching points. This means you can define your working range with special precision.
The electronic monitoring system (EMS) allows erection engineers to precisely delimit the defined working area. An acoustic signal and display indicate to the crane operator when he is approaching such an area, allowing the crane to stop automatically before overslewing.
As a special feature, predefined areas can be overslewed with the hook fully raised. This means low buildings can be protected, yet do not have to be fully bypassed.
20 polygon points for 10 polygon chains:Trace existing obstructions exactly.
A definable square:Program the four corners of a building.
Three circle segments:For rapid programming – define two points and the system will map out the angles and radius in-between.
A tower crane works at the limit of its lifting capacity for the shortest time. The Litronic also enables additional power for certain individual hoisting operations involving heavy loads. The hoisting load can be increased by up to 20% – at the press of a button.
A smaller tower crane is often adequate with Litronic, as it is capable of hoisting heavy parts infrequently.
The speed of the crane movements has a major effect on the maximum load capacity. To be able to increase this, the activated Load-Plus function reduces the speed of the crane drives.
To ensure fast application. As a result, the Load-Plus function can be activated directly at the radio-control or control stand.
Climbing is one of the greatest challenges in crane operation. The stability of the construction is reduced and the wind-exposed surface area increased. Climbing also involves many individual steps that need to function smoothly. The Tower Crane Litronic allows you to control the climbing for each of these individual steps.
The monitored system increases safety during the climbing process. The clear release for the next step prevents unnecessary interruptions.
Activating climbing mode automatically limits crane operation, converting it to a special climbing load curve. This enables the climbing to be carried out safely, while reducing hazards due to improper actions.
Besides operating the climbing equipment, the climbing control panel lets you monitor the entire procedure. Visual signals provide information on the proper implementation and enable the next climbing step.
Precise movement of loads is indispensable for efficiency and safety on the construction site. Filigree prefabricated building elements, the use of glass or light alloy components, concreting work under time pressure and the ever smaller construction sites are challenges that need to be mastered by crane operators.
The level luffing function makes the crane operator’s work easier, as he does not have to readjust the height of the load manually. This allows him to concentrate on positioning the load. That makes work on the construction site more efficient and enhances safety for everyone involved.
If the assistant is activated when moving the jib, the control system automatically readjusts the hoist gear. The exact calculation means the load can be moved along a horizontal line. Such precise work is possible with concreting work in particular.
The level luffing can be used flexibly. Depending on the type of hoisting, the crane operator can decide whether to use the assistant or not. The level luffing can also be activated or deactivated during hoisting.
The Litronic control system means the full control lever distance is always available, irrespective of the potential speed.
The control sensor registers the movements of the jib using high resolution sensors and counteracts the movements caused by the wind.
The integral oscillations-damping system compensates for fast slewing and braking manoeuvres.
A short familiarisation time as every crane operator can decide on one of three slewing gear modes and tailor it to suit his preferences.
Crane operators need to stay informed about the crane’s operating parameters for their work. Here the EMS helps them to keep an overview of everything – even in difficult conditions. The personalised mask also provides precise information that is important in special situations.
That makes the display an important tool for every crane operator.
The right view
Avoid distractions and show just what you need. Depending on requirements, the situation on the site and personal preferences, various operating parameters can be displayed or you can program a customised screen with the information you want. This can then be saved in a crane operator profile and opened at every shift change.
The EMS display is a useful aid when positioning loads. Besides indicating the trolley position, reference points can also be set. This means that the crane can return to a specific handling point again and again.
The display also helps to prevent downtimes. It shows warnings and error messages in plain text. This allows you to respond right away and avoid potential interruptions in advance.
The control stand in the Liebherr cabin sets new ergonomic standards.
The control levers provide access to all the essential functions of the crane, including the special Micromove and Load Plus functions.
Besides controlling the crane from the cabin, we also provide radio controls for all crane models.
You can keep the load in view at all times on the screen in the cabin using autofocus and zoom.
The training centre at Liebherr-Werk Biberach GmbH provides a range of training courses covering all aspects of controlling and working with cranes.
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