Portal Slewing Crane
Portal Slewing Crane are widely used in cargo loading and unloading at ports and docks, construction and installation of shipyards, and construction projects of large hydropower stations. The crane's rotating mechanism is installed on the base of the gantry crane, and the gantry base is actually the load-bearing part of the crane. There is a running mechanism under the gantry base, which can walk on the track set on the ground. The arm and luffing mechanism of the lifting mechanism are also installed above the rotating mechanism. The four mechanisms work together to complete the installation of equipment or hull sections, or to load and unload cargo.
Trains can pass under the gantry base. According to the requirements, it should be determined during construction that one, two or three trains can pass. When passing one, two or three trains, the track gauges of the gantry crane are 6m, 10.5m and 15m respectively. Gantry cranes are usually powered by an external power grid via a flexible cable, and large mechanisms are generally driven by three-phase induction motors.
1).Automatic follow-up function for full rotation of the hoist;
2).The active inverter technology can convert the kinetic energy and potential energy stored in the machine into electrical energy and efficiently feed it back to the power grid;
3).Suppress the pollution of the power grid by high-order harmonics and improve the power factor of the whole machine;
4).Record all parameters of the action within one or more working cycles, and realize the automatic cycle execution of the grab bucket by reasonably optimizing the calculation of the wiring harness and the acceleration and deceleration time;
5).Calculate the running acceleration of the lifting point for different actions, set segmented protection, detect the stall trend in advance, and combine the hardware overspeed switch to achieve double protection to effectively prevent the occurrence of stall accidents:
6)When the hoist is lifted to the specified height, the control relay makes the buzzer on the control box alarm, and the lifting action stops at the same time, and only the lowering operation can be performed, thereby preventing the over-winding of the lifting hook.
1). Weight overload protection device.
2). Lifting limit switch and traveling limit switch.
3). Emergency stop system.
4). Zero voltage protection.
5). Phases protection device and so on
6). Top quality long time bearing polyurethane materials buffer.
Hook lifting capacity:45t |
Grab bucket weight:25t |
Base distance:10.5m |
gauge:10.5m |
Radius of gyration:≤8m |
Lifting height on rail (hook/grab):24/20m |
Lifting height below rail (hook/grab):15m |
Wheel pressure:350KN |
Lifting speed (hook/grab): 25/40m/min |
Walking speed:26m/min |
Rotation speed:1.2m/min |
Luffing speed:50m/min |
1. What industries is this product suitable for?
Aerospace, water conservancy and power, metallurgy, transport and logistics, construction machinery and other industries.
2. Can this type work in hazardous environments?
Yes, of course! We can customise it for you, acid or explosion proof is no problem.
3. Can you provide the serious lifting tools?
Sure, we can provide any lift tools such as lift sling belt, lift clamp, grab, magnet or other specials as your requirement!
4. How can we install the crane?
Our senior engineer can be your side to do the installation guide service and training. Moreover, our best sales can visit your country.
5. Safety device
Overload limiter, Limit Switch (lifting and traveling), Interlock protection device.
Henan Province Mine Crane Co.,Ltd.(hereinafter referred to as "Henan mine") was established in 2002, covering an area of 1.62 million square meters, with more than 4700 employees. Since its establishment 20 years ago, the company has been advocating the development concept of reform and innovation, pursuing excellence, intelligent manufacturing, green and efficient, adhering to the continuous reform of technology, process, equipment, products and services, promoting the upgrading and transformation of the industry to automation, intelligence and informatization, and providing customers with all- round services. At present, the company's products have achieved remarkable results in more than 50 professional fields, such as aerospace, military science and technology, automobiles and ships, food and chemical industry, metal processing, steel smelting, machinery manufacturing and waste incineration treatment. The products cover more than 80 countries and regions and serve more than 7000 medium and high-end customers worldwide.