Winch hoist for dam gate is employed to hoist dam floodgate and trash rack, it is mobile or can be fixed on the dam top. This hoist also can be used to lift other metal devices for dam equipment installation and inspection.
Subway laying machine is mainly employed to lay subway tracks and for tracks examination/maintenance. This machine is controlled by hydraulic control, the height and span can be adjustable. Users can 1 set this machine to handle concrete and other devices, or use 2 sets this machine to complete laying of 25m rail row synchronously.
RMG crane is rail mounted gantry crane traveling along the rails on the ground, which mainly composed of steel structure, long traveling mechanism, cross traveling mechanism, sling, anti-sway system, container spreaders, and electrical equipment. RMG cranes can be widely used for outdoor stuff handling and projects such as container handling, steel plate/pipe handling, subway construction slag lifting, machinery lifting, bulk material handling and other heavy stuff handling.
The RMG crane is equipped with frequency conversion, PLC control system and CMMS fault detection system. Standards: China GB standard, ISO standard of International Standardization Organization, European FEM, Japan JIS standard, etc.
Features of RMG Crane:
1. This RMG crane can be applied in inland terminals, container yard, railway freight station, coastal freight yard and frontier wharf, etc.
2. Dedicated container spreaders to lift 20 feet, 40 feet and 45 feet containers.
3. Electrical drive system is full digital AC frequency conversion. It has the functions of PLC control speeding, CMS intelligent monitoring and management system, running state real-time monitoring equipment.
4. The upper trolley can rotate 270° for flexible load and unload.
5. Three-in-one reducer is adopted for long travel and cross travel mechanism with easy maintenance.
7. Crane driven wheel has brake and the crane traveling mechanism is equipped with Electrical interlocking, which stop the crane in case of hurricane or big wind.
8. The spreader can rotate ±5°. Anti-sway system to ensure highly precision of loading, unloading and positioning.
9. Special rotating trolley can be equipped according to the requirement of customers to make the spreader rotate 200°.
10. Remote monitoring and trouble diagnosing system are available according to the requirement.
11. Safe, reliable, green and easy maintenance.
12. Adequate safety protection device, communication and lightening system.
The most common application for straddle carriers is for container handling in port terminals and container yards. Container straddle carriers are used for stacking and moving containers. These straddle carriers have the ability to stack containers up to 4 layers. The running speed can be up to 30 km/h with full load. The workers can sit at the top so that they can see situations of front and back.
The normal capacity of Weihua straddle carriers is 35t, and the Max. design capacity is 60 t (59 long tons; 66 short tons) same as 2 full containers.
RTG crane is rubber tire gantry crane mainly used to handle containers or other stuff such as steel pipe at port terminal, container yard or other outdoor yard. Instead of traveling on rails, RTG crane has tire group as traveling mechanism. The tires allow the crane to travel at any directions.
This RTG crane adopts multi-lifting point, and tires is able to rotate 20°, 45°, 90° with hydraulic transmission. It adopts Stepless speed change for crane traveling and lifting mechanism. This crane is equipped with safe instructor, and overload protector for ensuring safety of operator and machine. All moves of mechanisms are controlled by CAN-BUS.
Features of RTG Crane:
1. Modular design with good versatility, all parts is detachable, convenient for transport and shorten lead time;
2. Shot blasting pretreatment of steel plate with surface quality reaching level Sa2.5;
3. Web plate is cut by CNC cutting machine with smooth and precise chamber degree;
4. Main seam is welded by Submerged arc welding;
5. Welding seam is tested by X-ray and Ultrasonic;
6. Advance Painting equipment for anti-erosion of sea salty water and air;
Weihua RTG Crane Ship Loading
7. Overload limiter, showing loading number to operator, preventing from overload;
8. Self-checking before start;
9. High quality motor and reducer from Germany, electrics adopts Schneider, Siemens and ABB etc. electric box protection degree not less than IP54;
10. Good steel from China well-known brands such as Wuhan Steel, Anshan Steel, etc.
11. Low energy consumption and high efficiency;
12. Intelligence control, Security Monitoring, Automatic detection of faults, etc.
13. Anti-sway technology;
14. Full set machine shipping;
15. There-in-one reducer, convenient for maintenance;
16. Equipped with crane steering jacking device;
17. Diesel generator unit and AC drive;
18. GPS positioning with precise positioning;
19. Tire pressure detection device;
20. PCL control, AC frequency speed control;
21. Adequate safety protection device, communication and lightning system.
RTG Crane for Thailand
35T RTG Crane Handling Containers at a Terminal in China
This is a latest special railway container gantry crane made by Weihua Group for the railway container logistics transport. It has U-type frame, double cantilever with rod, strong structure and light weight. The gantry span and width space are large enough for container loading and unloading. The spreader is a 360° rotating spreader with excellent adaptability and efficiency.
Electrical Control System:
1. All digital frequency conversion and PCL control technology;
2. High Precision Sensor Data Acquisition Technology;
3. Industrial computer data analysis and processing system.
1. The container lifting operation instructions are sent from the central control room to the working crane.
2. The driver room receives the job instructions from the central control room.
3. The crane driver operates the linkage table touch screen and starts the loading and unloading operation.
4. Linkage table touch screen real-time displays the spreader, crane and trolley position.
5. Temporarily receive plug-in jobs, while giving priority to the ongoing job. Perform the plug-in job after the current job is completed.
6. Accurate container positioning technology for container accurate positioning.
Machine vision technology will help to accurately identify the location of container keyhole and container number, then intelligent control system control the crane operation, adjust the spreader position and deflection angle, to achieve accuracy spreader locking and precision container stacking.
7. Linkage table touch screen real-time displays the spreader, crane and trolley position.
8. Equipped with PDS system, if the crane running position does not correspond to the indication position of the PDS system, the driver need to drop the rocker and the crane does not execute the command, and sends out the alarm information. The crane continues to execute the handling command until the driver moves the crane to the system indication position.
9. Programmed path planning and obstacle avoidance technology for optimizing path and obstacle avoidance.
10. The use of infrared space scanning technology real-time scanning yard container storage situation, and updating yard stacking 3d database. Spreader is controlled by intelligent program to run along the optimal path for intelligent obstacle avoidance to ensure safe operation.
11. The central control room receives the completion information feedback of the crane and enters the database.
A portal crane is a crane with rotary boom and runs along the ground track. Portal crane allow ground vehicle or rail vehicle to run through its portal/gantry, which make enough working space for on-ground vehicles transport.
1. Port Portal Crane: This crane is equipped with a replaceable hook, grab and other spreader, as well as bucket, funnel or belt conveyor for material handling.
2. Ship Construction Portal Crane: For the lifting work at shipyard with a large lifting capacity and lifting height. Usually 2 or more lifting hooks are fitted on this crane. The lifting weight of the main hook vary with the range of work. The working speed is generally slower than that of port portal crane.
3. Container Portal Crane: Used for container handling and stacking at container freight yard.
Features of Weihua Portal Crane:
1. Spreader: grab or hook, good applicability;
2. 4-bar linkage boom, precise luffing. The 4 bar linkage mechanism is optimized by dynamics software. When luffing, the horizontal move of load is ensured, the transmission angle is increased and the pressure angle reduced, by which, the service lift of 4 bar linkage mechanism is increased.
3. 360° slewing, wide working area;
4. PCL control, AC frequency speed control, stable and reliable operation;
5. Remote control is available if necessary;
6. Enough protection devices, communication and lighting system;
7. Adopt electronic balance system to prevent overload of opening and closing mechanism and lifting mechanism;
8. The luffing mobile counterweight is adopted so that when operating, the upsetting moment caused by load is minimized and the service lift of revolving support is increased.
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