A fixed-base crane refers to a jib-type crane that is fixed on a foundation or supported on a base and can only operate in a fixed position at a port. Compared with a portal crane in appearance, it has lifting, luffing, and slewing functions, but no traveling mechanism, and its metal structure has no portal frame. Its characteristic is that it can only work in a fixed position, but its structure is relatively simple and its cost is relatively low.
Product Advantages
1. Slewing bearing design with the same service life as the entire machine
We have manufacturing experience and processing techniques accumulated and refined over decades, and we are also a member of the Jib Crane Standardization Committee. Our slewing bearing processing technique, together with a relatively ample safety service factor, can ensure that the most important mechanical component of a portal crane—the slewing bearing—has the same service life as the entire machine.
2. Low center of gravity design
The design concept of a high jib and low slewing platform lowers the center of gravity of the portal crane and improves the stability of the entire machine.
3. Low wire rope wear design
The parallel lay method is adopted to reduce wire rope wear, increase service life by more than 20%, and reduce replacement costs.
4. Quick spreader switching
The quick-change interface ensures smooth switching among the grab, hook, and container spreader within 3-5 minutes.
5. Spreader follow-up
When the slewing platform rotates, the container spreader rotates in the opposite direction to compensate for the rotation angle, so the spreader always remains aligned with the working angle and improves work efficiency.
6. Pure electric drive
Environmentally friendly and energy-saving, with a power supply range of 380V to 20kV for the entire machine.
7. Multiple safety guarantees
Inherent safety of the crane has always been our goal. Through redundant design of multiple safety protections and real-time online cloud monitoring system, the safe use of the crane is effectively ensured.
8. High loading and unloading efficiency
Maximum bulk cargo loading and unloading efficiency: 1200 t/hour.
Maximum container loading and unloading efficiency: 30 natural containers/hour
9. Grab anti-sway system
The portal slewing system is modeled, the grab sway angle is calculated, and the slewing and luffing speeds are intelligently controlled to eliminate the sway angle and achieve an anti-sway effect.
10. Automatic operation system
The portal crane memorizes the grabbing position, unloading position, and operation path, and combines grab anti-sway, positioning, and anti-collision algorithms to realize automatic operation of the portal grab.
11. Jib anti-collision system
By detecting the radius, angle, and operating position of the portal crane and sharing data with adjacent equipment, a portal crane group model is built, and intelligent algorithms are used to achieve jib anti-collision protection.
12. Energy feedback system
The electric energy generated when the load descends or the motor decelerates is fed back to the power grid to realize energy recovery and utilization, achieving the purpose of energy saving and emission reduction.
13. Energy recovery system
The electric energy generated when the load descends or the motor decelerates is stored in a battery or supercapacitor and released during the next operation to realize energy recovery and utilization, while also reducing the input power of the entire machine.
14. High power factor and low harmonic content
An intelligent compensation and harmonic elimination system is adopted to improve power factor, reduce line loss, and optimize power quality.
Application Conditions and Fields
1. Port terminals: Used for loading and unloading ships and vehicles, including general cargo, bulk cargo, and containers, etc.
2. Railway freight yards: Train loading and unloading, including general cargo, bulk cargo, and containers, etc.
Optional Configurations
1. Lifting attachments: Optional hook, grab, container spreader, electromagnetic spreader, hook beam, C-type steel coil spreader, etc.;
2. Intelligent systems: Optional cloud monitoring, video monitoring, remote control, condition monitoring, intelligent lightning protection system, automatic fire extinguishing, automatic spreader follow-up system;
3. Energy-saving systems: Energy feedback system, energy recovery system;
4. Bulk cargo receiving systems: Mobile hopper, fixed hopper, traction hopper.
