Ladle Crane,Steel Mill Ladle Crane, Casting Ladle Crane - QDY Series

Ladle crane with double girder overhead crane design for ladle, liquid metal hoist in steel mill, casting foundry, smelting furnace. Ladle Crane for sale. Ladle crane with double girder overhead crane design for ladle, liquid metal hoist in steel mills, casting foundries, and smelting furnaces. The main hoist of hot metal ladle crane is operated at a high speed to accommodate high heat handling and heat transport productivity. The auxiliary hook works in tandem with the main hook to perform pouring of molten steel and steel slag, as well as other auxiliary hoisting. For main mechanisms such as hoisting, trolley traversing, and crane travel, use a variable speed system with a speed ratio of 1:10. We can also select the appropriate speed based on the customer's specifications.

Types of ladle cranes

Ladle overhead cranes are categorized as Double Girder Double Rail Ladle Cranes, Four Girder Four Rail Ladle Cranes, and Four Girder Six Rails Ladle Cranes based on their crane structure. The first two are used to hoist middle and big scale ladles, while the rest two types of ladle craneis used to lift extremely large scale ladles. Yuantai Crane can provide a customized ladle overhead crane with no restrictions on lifting capability.

Double girder ladle crane 

Four girder ladle crane

Ladle overhead crane are divided into four types

• Double-girder two-rail design ladle cranes is with smaller lifting capacity.
• Double girder four-rail design ladle cranes is with smaller lifting capacity.
• Four-girder four-rail design ladle cranes is used for large capacity hot ladle handling with larger lifting capacity.
• Four-girder six-rail design the lade cranes is adopted when the lifting capacity is extra large.

The steel mill ladle crane designed with safety and reliability, advanced technique, rigid structure, good economy and durability, and easy maintenance. The ladle overhead crane is built with safety and dependability in mind, as well as innovative technology, a rigid structure, good economy and durability, and ease of maintenance.

QDY type 5 ton -74 ton ladle crane working class A7 for metallurgy

Production features of ladle overhead crane

Ladle cranes are designed with special safety features to ensure the efficiency and safety of the crane system due to the high risk level. Ladle cranes have the following characteristics：

• The lifting mechanism is equipped with two sets of independent action brakes.
• When the crane hoisting height exceeds 20 meters, heavy hammer and rotary lifting position limiters are installed, and a down position limiter is installed.
• The overspeed protection equipment has stopped working.
• 4.Fault protection devices, such as positive and negative contactors, are installed to prevent danger in the event of a power outage.
• An insulating layer is installed at the bottom of the main girders to prevent molten steel thermal radiation and ensure the main girders' long service life.
• A special designed metallurgy motor with insulation class H and motor protection grade IP54 is used.
• A cast steel pulley is used to ensure the safety and long life of the machine.
• A steel core wire rope with a safety factor of 7.1 is used, which is suitable for high temperature environments.
• The trolley's power supply is powered by a high temperature resistant cable.
• The cabin has a thermal insulation layer and air conditioning.

Main parts & components of hot metal overhead crane

QDY Type 5 Ton 74 Ton Ladle Crane Working Class A7 For Metallurgyis composed of boxed bridge frame, hook, crane travelling mechanism and electric system.

Main girder -  Main parts of ladle overhead crane 

Open winch trolley-  Main parts of ladle overhead crane 

Crane driver's cabin  -  Main parts of ladle overhead crane 

Reducer -  Main parts of ladle overhead crane 

Ladle hook -  Main parts of ladle overhead crane 

Ladle bucket-  Main parts of ladle overhead crane 

Optional:

The following choices are available with ladle overhead cranes.

• 1. Each mechanism of hot metal ladle crane has a variable speed control.
• 2. A rotary lifting device 
• 3Warming display and overload limit
• 5. Weighing and displaying the load;
• 6. Location and display of three-dimensional lifted points
• 7. System for PLC control and fault detection, as well as display, recording, and printing
• 8. Impact protection for cranes in the same bay;
• Simply provide us with your ladle overhead crane specific requirements, and customized overhead crane will be custom-made for your needs.

Working condition:

• The ladle overhead crane's power is three-phase AC, with a rated frequency of 50 Hz and a rated voltage of 380 volts.
• The working environment is at a temperature of -10°C+60°C.
• When the temperature is above 40°C, the relative humidity is less than 50%;
• If the needs are greater than those listed above, it must carry out the criteria in the purchase contract as requested by the user.

Double brake for hot metal ladle overhead crane to ensure safety 

Safety feature:

• a. Protection against overload , the hoisting upsystem will beshut eddown and only lowering motion is possible.
• b. Long and cross travel are restricted by preliminary and final limit switches or a wireless anti-collision device.
• c. The anti-falling protection is used on the ladle cranetrolley andThree-in-One electric motor topreventsaccidental falling.
• d. By activating the emergency-off switch at the control station via a main contact, all movements can be turned off immediately.
• e. High-quality, long-lasting polyurethane materials buffer fixed at the end of trolley and crane travel to prevent overtravel
• e. High-quality, long-lasting polyurethane materials buffer fixed at the end of trolley and crane travel to prevent overtravel
• f. The hook safetylatch is used to keep the lifted material from falling off the hook.
• g. An audible and visual alarm device to warn people not to approach the moving ladle crane.
• h. Rain cover for outdoor crane lifting mechanisms, electric cabinet, and driving mechanism
• i. A protective earth conductor is standard.
• j. Voltage reduction protection system
• k. Current overload protection system