The crane adopts polygon-section boom（Patent No.: ZL 2004 2
0035755.7）whichmakes the stress distributed more evenly, the load
bearing condition improved, the deadweight reduced, and the load
carrying capacity of boom improved.
The boom adopts two-section independent telescoping mechanism
(Patent No.: ZL 2004 2 0035753.8) which greatly improves the
lifting performance of themiddle-long boom.
The crane adopts double slewing mechanism and closed control
circuit（Patent No.：ZL 2004 2 0035751.9）which make gear drive
continuously and smoothly. In addition, it has the advantages of
good cushioning performance, high accuracy of motions, high
utilization ratio of energy and low heat of systemwhile the crane
starts or brakes.
The crane adopts load sensor and electro-hydraulic proportional
control system (Patent No.: ZL 03 2 27135.2) which can improve the
jogging performance of motions.
The electric system has the faulty self-diagnosis function, which
can monitor the working state of electronic control system in the
course of running crane. If the abnormal phenomena happen, it can
find out faults by a certain way to calculate, start the
corresponding fault running modules and then display the
corresponding information on interface. In this way, the service
man can find out the faults and do maintenance at once.
The crane adopts CAN-bus control technology which ensures the high
reliability of data transfer.
The crane adopts limit load control technology which can ensure the
engine power to be full used and prevent it from shutdown due to
The crane is equipped with a load moment limiter with multifunction
which can ensure high safety, reliability and accuracy.
The crane adopts an operator's cab which can tilt 20°to broaden
The derricking mechanism adopts four modes, e.g. high speed, middle
speed, low speed and jogging, to meet the requirements under
different working conditions.
The driver’s cab adopts an advanced reversing rear display system
which displays rear working area directly to make reversing much