Salzburg, Austria-based Palfinger continues to make design enhancements to its articulating boom cranes, which are available in North America through Palfinger Inc., Niagara Falls, Ontario. The latest development—High Performance Stability Control (HPSC)—has most recently been added to the PK 78002 SH and PK 65002 SH models, which are the two largest models in the SH product line. The PK 78002 SH has a lifting moment of 74.7 tonne-meters. Equipped with up to eight hydraulic extensions, it achieves a hydraulic outreach of 20.4 meters.
The PK 65002 SH has a lifting moment of 62 tonne-meters. Equipped with up to eight hydraulic extensions, it achieves a hydraulic outreach of 20.4 meters.
The HPSC system calculates and defines the permissible working range from 0° to 360° for any outrigger setting. Variable outrigger positions can be set on either of these crane models. The position of the outrigger is recorded by means of cable extension transducers or magnetostrictive position sensors in the stabilizer support. The entire sensor system is mounted inside the unit, protecting it against damage, dirt, and the elements.
Meanwhile, HPSC is based on an intelligent algorithm developed by Palfinger, which enables accurate approximation to the vehicle’s actual stability based on the crane and vehicle’s real data. The accuracy is achieved by also including data such as the vehicle’s torsion in the calculation and determining an inherent value for stability every 1.4°. This maximum approximation to the vehicle’s physical tipping limit makes it possible to exploit the crane’s safe working range to its fullest extent.
The system adjusts the crane’s lifting power depending on the current stability support situation and the position of the crane boom to ensure the vehicle’s stability over the entire working range. The operator can read the current status on the operator’s console or on the display of the radio remote control.
The remote control with LCD display is also a new feature. The display screen shows the operator a variety of operating conditions such as capacity usage, active systems, servicing intervals, movements currently accessible or the position of the stabilizers.