LD type single girder overhead travelling crane is a type of lifting equipment used in industrial settings for lifting and transporting heavy objects. It consists of a single girder mounted on two end trucks that move along a runway beam. The hoist and trolley are mounted on the girder, and they move along the girder to lift and transport loads.

The LD type single girder overhead travelling crane is typically used in applications where the load capacity is less than 20 tons and the span is less than 31.5 meters. It is commonly used in workshops, warehouses, and other industrial settings where materials need to be lifted and transported.

The LD type single girder overhead travelling crane is known for its compact design, high efficiency, and easy operation. It is also relatively easy to install and maintain, making it a popular choice for many industrial applications.

Details about LD type single girder overhead travelling cranes:

1. Load capacity: LD type single girder overhead travelling cranes typically have load capacities ranging from 1 ton to 20 tons. However, larger capacities can be achieved by using multiple cranes in tandem.

2. Span: The span of an LD type single girder overhead travelling crane is typically less than 31.5 meters. However, longer spans can be achieved by using additional runway beams and support structures.

3. Hoist and trolley: The hoist and trolley are mounted on the girder and are used for lifting and transporting loads. The hoist can be electrically or manually operated, and the trolley can move along the girder to position the load.

4. End trucks: The end trucks are mounted on either end of the runway beam and support the girder as it moves along the beam.

5. Control system: LD type single girder overhead travelling cranes are typically controlled by a pendant or a radio remote control. The control system enables the operator to move the crane, position the load, and control the speed of the hoist and trolley.

6. Safety features: LD type single girder overhead travelling cranes are equipped with various safety features, such as overload protection, emergency stop buttons, and limit switches, to ensure safe and efficient operation.