As a key component of port cranes, the performance of the container spreader frame directly determines the efficiency and safety of the lifting operation. From high-strength steel to the formed spreader frame, laser pipe cutting machines, laser plate cutting machines, pipe bending machines and laser welding machines work together to create reliable core components of port heavy-duty equipment with exquisite craftsmanship.
I. Pipe cutting - heavy-duty cutting of laser pipe cutting machines
The main load-bearing structure of the container spreader frame mostly uses high-strength low-alloy structural steel (such as Q690D) pipe force. The laser pipe cutting machine uses a high-energy-density laser beam to achieve high-precision cutting of thick-walled pipes, laying the foundation for the structural stability of the spreader frame.
Equipment advantages
High-precision cutting of thick-walled pipes to ensure load bearing: For Q690D pipes with a diameter of 100mm and a wall thickness of 10mm commonly used in spreader frames, the cutting accuracy of the laser pipe cutting machine can reach ±0.1mm, and the verticality of the cut is ≤0.5°.
Efficient cutting for large parts processing: The laser pipe cutting machine has a fast cutting speed. For Q690D pipes with a diameter of 100mm and a wall thickness of 10mm, the cutting speed can reach 80mm/min, which is 2-3 times that of traditional mechanical cutting methods. It can quickly complete the cutting task of large quantities of pipes and meet the large-scale production needs of the hoist frame.
Multifunctional design for special-shaped cutting: The laser pipe cutting machine can accurately control the cutting path through the CNC system, and easily complete complex processing such as bevel cutting and waist-shaped hole cutting of pipes.
Ⅱ Plate processing - heavy-duty engraving of laser plate cutting machine
The laser plate cutting machine uses a high-energy laser beam to accurately cut the steel plate to give these parts precise shapes and sizes.
Equipment features
High-quality cuts improve connection strength: The edges of the steel plates cut by the laser plate cutting machine are smooth and burr-free, and the cuts are highly vertical, so they can be directly used for welding without secondary grinding.
Large-format cutting adapts to large-scale component processing: The working table of the laser plate cutting machine can meet the processing needs of such large plates, and can complete the cutting of the entire plate at one time, reducing the splicing process, improving production efficiency and the integrity of the frame.
Complex graphics cutting realizes functional integration: Cutting precise mounting holes, locking mechanism grooves and reinforcing rib contours on the steel plate is the advantage of the laser plate cutting machine.
III. Pipe bending - heavy-duty shaping of pipe bending machine
In order to make the container spreader frame have a reasonable structural layout and better stress performance, some pipes need to be bent into specific angles and shapes. The pipe bending machine plays an important role in this link.
Equipment function
Precise angle control to ensure structural symmetry: The CNC system of the pipe bending machine can accurately control the bending angle with an error of ≤±0.5°.
Anti-wrinkle bending to ensure pipe strength: The pipe bending machine driven by CNC servo, with anti-wrinkle die and pressure die, can apply uniform pressure to the inner and outer walls of the pipe during the bending process of the pipe bending machine.
Multi-stage bending and one-time forming improves efficiency: For complex pipes that require multi-stage bending, the pipe bending machine can be controlled by program to achieve multi-angle and multi-radius bending in one clamping.
IV. Component assembly and welding - Heavy-duty connection of laser welding machine
Laser welding machine uses high-energy-density laser beam to achieve precision welding between components, ensuring the overall strength and stability of the frame.
Equipment advantages
Deep-melting welding ensures connection strength: Laser welding machine can form deep and narrow welds with a melting depth of 8-10mm. For the welding of thick-walled pipes and plates by laser welding machine, high-strength connections can be achieved, and the strength of the welded joints is close to or even exceeds that of the parent material.
Low heat input reduces welding deformation: The heat-affected zone of laser welding machine is small, and the effect on the thermal deformation of the welded parts is minimal, which can ensure the dimensional accuracy of the sling frame.
Automated welding improves consistency: The laser welding machine system equipped with a robot can realize the automated welding of complex welds, ensure the consistency of each weld, reduce human operation errors, and improve the stability of the welding quality of the sling frame.
From high-precision cutting to firm welding, the four major equipments-laser pipe cutting machine，laser plate cutting machine，pipe bending machine and laser welding machine work together to create a high-quality structure with strength, precision and durability for the container spreader frame.