YZS casting bridge crane, adopting main crab and auxiliary crab, and four-girder and four-rail structure, is composed of bridge, main crab, auxiliary crab, connecting traverse, trolley traveling mechanism and electric part. The main crab runs at the rails outside the bridge, and the auxiliary crab runs at the rails inside the bridge.The main crab employs the connecting transverse as the load handling device to hoist steel ladle, and the auxiliary crab, employing the hook as the load handling device, runs across under the main crab to accomplish pouring of molten steel and steel slag,and other auxiliary hoisting in coordination with the main hook.

The trolley travelling mechanism and main electric equipment are installed in the girder. The girder' s electric panel room employs rock wool for heat insulation, and has an air cooler inside. To reduce heat radiation of molten steel to metal structural members, a thermal baffle is set along the span direction at the bottom of the girder.

The trolley travelling mechanism adopts four-corner drive. 

The crane is equipped with a special electronic scale, and there are display devices in the cab and on the bridge. The main hoisting mechanism is furnished with an overspeed switch.

YZS Four Girder Ladle crane is composed of boxed bridge frame, hook, crane travelling mechanism and electric system. The main hook employs a load tool as the lifting device to hoist steel ladle, the auxiliary hook cooperate with the main hook to accomplish pouring of molten steel and steel slag, and other auxiliary hoisting. Also we can choose the suitable speed under the customer requirement.The main structure of four beam foundry crane is designed with 4 girders and 6 rails. The highlights of this crane are integral processing technology and secondary assembly technology. For the first time assembly, the welding components sizes are fixed and adopt flat position welding to ensure the quality of welding seams; and the secondary assembly is to release welding stress before the integral processing of the bridge to ensure the stability and accuracy of product process precision. The two-times assembly technologies could maximally ensure the precision of gauge, diagonal and span, as well as users' site installation.During manufacture and installation, we have obtained valuable experiences to lay the foundation for manufacturing crane with more technology and complex structure.

Working condition:

1.Working tempreture:-10~+60°C,

2.Work class:A7,

3.Power Source:3ph,380V,50HZ or other under customer requirement.

Safety feature:

1. Overload protection in the event of overload, the hoist unit switches off and only the lowering motion is possible

2.Long and cross travel limited by means of preliminary and final limit switches or Wireless anti-collision device

3.Anti-falling protection for the Three-in-One electric motor of trolley and crane prevents from accidental falling

4.Safety hook latch used for avoiding the lifted material out off from the hook

5.Voltage lower protection system

Features

1.Very stable because of two lifting point on hanging beam of ladle hook through wirerope pulley.

2.Very very safty to lift because every one hanging beam pulley have two pcs of wirerope to avoid the risk happened once one pc

of wirerope damaged.

3.Anti high temperature.

4.Capacity is 125/32tons and up.

5.Two sets of brake for each lifting point and 4sets of brake for the main lift.

6, Emergency stop system

7, Over current Protection

8, Short-circuit Protection

9, Phase sequence protection.

10, High protection level IP54 IP55.

11, Zero position protection.

12, Voltage loss protection.

13, Current overload protection.

14, Two carts for two lift, main lift cart is up, aux lift cart is below, to finish the heavy duty working, and could aux hook

could be on left and right of main hook.

Casting bridge cranes are the main handling equipment for smelting workshop of steel works. They are used for conveying, pouring and hot metal charging of liquid metal in smelting process.

Applications of Four Girder Ladle Crane in Steel Works

The Four Girder Ladle Crane is a crucial component in the smelting workshops of steel production facilities. This specialized type of bridge crane is engineered to handle the unique demands 

of transporting and managing liquid metal during the various stages of the steel-making process. 

1. Material Transportation:

At the heart of the smelting process, the Four Girder Ladle Crane facilitates the efficient movement of molten steel. It is designed to transport ladles filled with liquid metal from one location 

to another within the workshop, ensuring that materials are moved swiftly and safely. The sturdiness of the four-girder system provides enhanced stability, allowing the crane to manage heavy

 loads with precision.

2. Pouring Operations:

During the pouring phase, the ladle crane plays a pivotal role in delivering the molten metal into molds or casting machines. The crane’s precise control mechanisms allow for accurate 

positioning and pouring, which is essential for maintaining the integrity and quality of the final steel products. Operators can control the speed and angle of the pour, minimizing spillage 

and ensuring efficient operation.

3. Hot Metal Charging:

In addition to transporting and pouring liquid metal, the Four Girder Ladle Crane is integral to hot metal charging. This involves transferring molten metal from the ladle directly into furnaces

 or converters for further processing. The crane's robust design enables it to perform this task safely, even in high-temperature environments, significantly contributing to the overall efficiency 

of the steel production process.

4. Enhanced Safety Features:

Steel smelting operations pose numerous safety challenges due to the extreme temperatures and heavy materials involved. The Four Girder Ladle Crane is equipped with advanced safety 

features, such as overload protection and emergency stop systems, to minimize risks associated with crane operation. Additionally, operators can utilize remote control systems to maintain 

a safe distance from the molten metal, further enhancing workplace safety.

5. Integration with Automation:

Many modern steelworks are moving towards more automated solutions for increased productivity. The Four Girder Ladle Crane can be integrated with automated systems that streamline 

the handling of molten metal, from transportation to pouring. This integration supports smart manufacturing practices, allowing for real-time monitoring and adjustments, ultimately 

improving operational efficiency.

In summary, the Four Girder Ladle Crane is indispensable in the steel smelting process, facilitating the handling of molten metal with efficiency and safety. Its ability to transport, pour, and 

charge hot metal makes it a pivotal piece of equipment in modern steel production facilities.