Page 61 - Hub-4 Magazine Issue 67

Bulk Handling
The modified z-bar kinematics on the L 550 and L 556 wheel loaders offers strength in the lower lifting range and higher breakout forces than before. The maximum force is produced when, for example, the bucket or attachment is working close to the ground and breaks material out of a pile. This is an important feature when picking up and loading rocks, gravel or construction debris.
Liebherr has also overhauled the industrial kinematics of both wheel loaders. The industrial kinematics is tailored to industrial operations that frequently require operators to work with heavy working tools such as light material buckets, high dump buckets and log grapplers. In addition, the industrial kinematics offers parallel guidance, which is ideal for operating forklifts.
The high lift version (one for both z-bar and industrial kinematics) has extended lift arms for increased reach and more productive loading at a great height.
Versatility thanks to increased tip load and range of equipment options
The overhaul of the lift arms has increased the tip load, which means that operators of the new L 550 XPower® and L 556 XPower® can work with larger buckets than before, and move more material in each loading process. Liebherr has taken this as an opportunity to reconfigure the design of the buckets on both models. Consequently, customers can now more accurately tailor the individual modules and wear parts of the buckets to their needs at the time of ordering.
The fully automatic LIKUFIX quick coupler system, historically a feature of Liebherr hydraulic excavators, is being made available for the L 550 XPower® and L 556 XPower® wheel loaders for the first time which will revolutionise operations involving multiple attachments or tools. The LIKUFIX quick coupler system allows operators to safely and conveniently switch mechanical and hydraulic attachments and tools from inside the cab at the press of a button.
The L 556 XPower® wheel loader with z-bar kinematics and earth bucket engaged in conventional mining operations.
Additional equipment allows both XPower® wheel loaders to be prepared for customer-specific requirements. In addition, a hydraulic quick coupler with optimised visibility is also available when requested by the customer, as well as a range of assistance systems. The latter includes active personnel detection at the rear with a new braking assistant, designed to increase safety in day-to-day operations.
Performance data of standard version wheel loaders
An L 550 XPower® with industrial kinematics and high dump bucket loading a container.
Tip load:
Bucket capacity: Operating mass: Engine power:
L 550 XPower®
12,500 kg
3.4 m3
18,550 kg
163 kW / 222 HP
L 556 XPower®
13,750 kg
3.7 m3
19,600 kg
183 kW / 249 HP
www.hub-4.com Mar-Apr 21 - Issue 67
| p61 |