

Add to Cart
Product Description
XCMG crane parts lifting torque limiter HC3901
803543102 fits the following models:
QY25K5
Function:
Crane lifting moment limiter is an important safety device, its
main role and function are as follows:
1. Prevent overloading and overturning
The lifting moment limiter calculates the current moment value and
compares it with the preset safety threshold by real-time
monitoring the lifting weight, boom angle, working amplitude and
other parameters of the crane. Once the actual moment exceeds the
safety threshold, the moment limiter will immediately activate the
protection mechanism, cut off the power supply of the lifting
mechanism or issue an alarm, thus avoiding the equipment
overturning caused by overload or excessive moment.
2.Real-time monitoring and warning
The moment limiter can display the actual load, working radius,
boom angle and other information of the crane in real time. When
the load is close to the rated value (e.g. 90%), it will send out a
warning signal; when it reaches 100% of the rated load, it will
send out an alarm signal; when it exceeds 104% of the rated load,
it will automatically stop the operation of lifting and increasing
the working radius.
3.Intelligent management and data analysis
Modern torque limiters have intelligent functions, which can record
and analyse the crane's operating data and generate reports to
provide a basis for equipment maintenance and optimisation. Some of
the equipment also supports remote monitoring and data
transmission, which is convenient for managers to understand the
real-time operating status of the equipment.
4. Improve operational safety and efficiency
The torque limiter reduces the risk of accidents caused by human
error or misuse through automatic monitoring and protection
mechanisms, and helps operators control crane operations more
accurately and improve work efficiency.
5. Compliance with safety standards
Many national and regional regulations require lifting equipment to
be fitted with a torque limiter to ensure the safe operation of the
equipment. The use of torque limiter not only ensures the safety of
the operator and the surrounding personnel, but also meets the
relevant regulatory requirements.
6. Protecting the equipment and prolonging its service life
By limiting the torque, it avoids damage to the equipment due to
overload or over-torque operation, reduces mechanical wear and
fatigue, thus prolonging the service life of the equipment and
reducing the maintenance cost.
Working Principle
The working principle of the torque limiter is based on sensor
technology and intelligent control algorithm. The sensor collects
the crane's lifting capacity, boom angle and other parameters in
real time and transmits the data to the controller. The controller
calculates the current moment value and compares it with the preset
safety threshold, and immediately triggers the protection mechanism
once it exceeds the safety range.
In conclusion, the crane lifting moment limiter is an important
device to ensure the safety of crane operation, through real-time
monitoring, early warning and protection mechanism, effectively
prevent accidents from occurring, and at the same time, improve
operational efficiency and equipment life.