Sennebogen has expanded its range of HD duty cycle cranes with the new 6220 E, featuring a load capacity of 220 t and a maximum boom length of 74.7 m in lifting mode. This model closes the gap between the 140-t 6140 E and the 300-t 6300 E.
The new 6220 E is designed for a wide range of applications in the heavy-duty sector. Customers can choose between a 563 kW or the larger 708 kW engine with Stage V emission compliance. Various attachments and ballast variations are available, depending on whether the machine is to be deployed as a crane or excavator.
The 6220 E can operate under tough conditions and even at inclinations of up to 4 degrees with the higher engine power and more ballast. The machine can also be equipped with extra hydraulics for various attachments and there are several winch options, ranging from 30 t or 35 t free-fall winches, an equipment with 2 x 20 t double winches, through to other winches for a variety of applications.
In addition, the duty cycle crane can be equipped with a 6-t tagline winch with 60 kN tractive force for the necessary precision during grab work. With a fairlead and dragline bucket, the machine is ideal for extraction work. In civil engineering, the robust boom design and the high load capacities make it easy to operate a hydraulic breaker, leader, vibrator or even a diaphragm wall grab.
The use of aramid guy ropes instead of steel ropes on the main boom has resulted in considerable weight savings. The 6220 E also has two slewing gears, which guarantee a high slewing torque of 585 kN.
Operator safety and comfort
The Maxcab large-capacity cab provides all-round comfort and can be tilted by 20 degrees, so that the operator always has an optimum view of the working area. A 2-m hydraulically elevating cab is available as an option.
The crane’s boom is fitted with a height safety device to enhance safety. For safe access to all areas of the machine, the optional railings and walkways on the uppercarriage as well as the access steps themselves have also been revised. Furthermore, the assembly of the undercarriages and changing the reeving can be carried out conveniently and safely by remote control.
The new SLC (Sencon load control) machine control system is another highlight in terms of user-friendliness. It is a separate control system developed based on automotive standards, which significantly simplifies the operation of the machine thanks to its intuitive and clear structure. This new system complements the existing Sencon (Sennebogen control system) and shows all important data on the lifting process via a touch display in addition to the load moment limitation. There is also a ground pressure display calculated in real time. Diagnostic data on the machine and engine can still be found in the Sencon as usual.
The Starlifter undercarriage has a track width of 6,400 mm and a running gear length of 9,280 mm and is equipped with 1,000 mm flat track shoes, giving it stability. For even greater stability, the undercarriage can be fitted with an additional undercarriage ballast. The 6220 E features a transport weight of approximately 65 t, and its crawler tracks can be dismantled for transportation. They can be easily reassembled using the self-assembly system once the crane arrives at the jobsite.
