Quayside Container Crane (QC)
• Applicable Scenarios: It is used at the forefront of the port terminal and is a key equipment for loading and unloading containers from ships. It can span the ship's deck and the dock front, hoisting containers from the ship to the dock or vice versa.
• Features: It has a relatively high lifting height, generally reaching about 30 - 50 meters to adapt to the container handling of different ship types. Its lifting capacity is large, capable of lifting a single fully - loaded 40 - foot container or multiple 20 - foot containers. For example, the rated lifting capacity of a large - scale QC can reach about 65 - 100 tons, and the working radius (the horizontal distance from the center of the crane track to the center of the spreader) is usually between 30 - 60 meters, covering most of the ship's operating area.
• Spreader Matching: It is usually equipped with a special container spreader, such as a telescopic spreader. This spreader can automatically expand and contract according to the size of the container (20 - foot, 40 - foot, 45 - foot, etc.). The expansion and contraction of the spreader is controlled by a hydraulic system, enabling quick and accurate grasping and hoisting of containers.
Rubber - tired Gantry Crane (RTG)
• Applicable Scenarios: It is mainly used in the container terminal yard. It is responsible for the stacking and retrieval of containers that have been unloaded from the ship. It is used for horizontal transportation and stacking of containers in the yard behind the terminal.
• Features: It can move flexibly within the yard, traveling on the ground relying on tires. The lifting height is generally about 15 - 18 meters, and it can stack containers in a certain number of layers (usually 4 - 6 layers). The lifting capacity is generally about 30 - 40 tons, meeting the requirements of container hoisting and stacking in the yard.
• Spreader Matching: It also uses a special container spreader, mostly a telescopic spreader. When the spreader grabs the container, it cooperates with the lifting and translation movements of the crane through the electrical control system, accurately hoisting the container from the ground to the designated stacking position or from the stacking position to the transport vehicle.
Rail - mounted Gantry Crane (RMG)
• Applicable Scenarios: It is also used in the container terminal yard. It runs along fixed tracks, and its operating range is relatively fixed but with high efficiency. It is especially suitable for large and busy container yards.
• Features: Its lifting height and lifting capacity are similar to those of the rubber - tired gantry crane. The lifting height can reach about 18 - 20 meters, and the lifting capacity is between 30 - 50 tons. Its operation is stable. Because it runs along the track, the positioning accuracy is relatively high, effectively improving the operation efficiency of the yard.
• Spreader Matching: It is usually equipped with a telescopic container spreader. With the cooperation of the crane's long - travel (along the track direction) and cross - travel (perpendicular to the track direction) operating mechanisms, the spreader is used to accurately grasp and hoist containers, realizing efficient operation in the yard.
Front - end Container Handler (Front - loader)
• Applicable Scenarios: It is mainly used for short - distance transportation and stacking of containers. It is used in places such as container terminals, logistics warehouses, and railway freight yards, especially for container operations that require flexible transfer and loading/unloading.
• Features: It has good mobility, and the vehicle can drive by itself with a relatively small turning radius. The lifting height is generally about 10 - 12 meters, and the lifting capacity is usually about 40 - 50 tons. It can lift a single 20 - foot or 40 - foot container and can also perform container stacking operations at a certain angle.
• Spreader Matching: It generally uses a rotary container spreader. This spreader can rotate within a certain angle range, facilitating the front - end container handler to grab and place containers at different angles and positions. For example, in a narrow passage or an irregular stacking site, the container can be accurately placed in the designated position by rotating the spreader.
