Double Girder Overhead Casting Crane

QDY Double Girder Overhead Casting Crane

Double Girder Overhead Casting Crane
Double Girder Overhead Casting Crane

Product Type: QDY Double Girder Overhead Casting Crane
Lifting Capacity: 5~320t
Span: 10.5m~31.5m
Lifting Height: 6~18m
Working Class: A7
Ambient Temperature: -10~60℃

QDY type double girder casting crane is the main overhead lifting equipment used for steelmaking and continuous casting process. The casting bridge crane offers great protection and high-level efficiency in areas where the high temperature and dust present. It can lift and transport liquid steel ladle in a greater speed and efficiency than its single girder counterpart, making it ideal for heavy duty or severe lifting requirements.

The casting overhead crane is capable of lifting a substantial amount of weight, usually is a range of 5 tons to 320 tons, and the work duty is A7. Thus the double girder casting crane can adapt to a much worse working environment.

Metallurgy Overhead Crane
Metallurgy Overhead Crane

Steel Mill Casting Bridge Crane
Steel Mill Casting Bridge Crane

Common  Uses of Casting Bridge Crane

This particular double girder overhead crane is extensively used in many industrial fields, such as steel mills, petrochemical plants, foundries, power plants and other general industries. The environmental conditions where the crane is employed are severe, such as high heat and dust. And also the ladle crane undertakes frequent and heavy duty lifting tasks in such environments.

Basically the temperature of the crane working environment is -10~ + 60℃, and when the temperature reaches +40℃, the relatively humidity should be no more than 50%.

Optimal Design of Steel Mill Casting Crane

Main beam – insulation layer will be added to the bottom of the main beam so as to provide excellent resistance to heat and protect the crane bridge girder.

Hoist trolley – this unit uses forged hook and steel core wire rope. The hoisting mechanism adopts double brakes to ensure a safe lifting operation. Other options for casting crane hook include rotary spreader, load weighing and display.

Crane travelling mechanism – forged or rolled wheels are adopted.

Electrical device – the overhead crane adopts H-class insulation motor and heat resistant cables.

Cabin – add insulation layer to the driver’s cabin.

200T Casting Overhead Crane from Dafang
200T Casting Overhead Crane from Dafang

Top Features of Casting Overhead Crane

  1. Advanced design and novel structure.
  2. High safety and reliability.
  3. Easy operation and accurate positioning.
  4. Long working life and easy maintenance.
  5. Good cost effectiveness.
  6. Good quality and competitive price.

Safety System of Double Girder Hook Casting Crane

  1. Overload limiter. In the event of overload, the hoisting mechanism will switch off and only move downward.
  2. Travelling limit switch. It is used to limit the crane travelling.
  3. Anti-collision device. It can be equipped when two or more bridge cranes are mounted to the same runway.
  4. Emergency stop button. In case of emergency, all movements can be stopped.
  5. Safety hook latch. It can be used to avoid loads falling off from the hook.
  6. Anti-falling protection device for crane and trolley three-in-one motor.
  7. Current overload protection system.

Strength of Dafang Crane

Dafang group is recognized as a leading overhead crane manufacturer and supplier in China. With more than 10 years of efforts and practices in the crane industry, we have become a trusted and competitive manufacturer enterprise. We can guarantee quality products, fast delivery and reliable service. To learn more about double girder casting crane, contact us freely.

Technical Parameter:

Capacity t 5 10 20 32 50
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~18 6~18 6~18 6~18 6~18
Lifting speed m/min 12.5 13 9.9 9.7 7.6
Work duty A7 A7 A7 A7 A7
Track type P43 P43 P43 QU70 QU80
Capacity t 75 100 160 200 320
Span S(m) 10.5~31.5 13~31 13~31 13~31 13~31
Lifting height m 6~18 6~18 6~18 6~18 6~18
Lifting speed m/min 6.4 7.5 0.6~6 0.8~8 0.9~9
Work duty A7 A7 A7 A7 A7
Track type QU100 QU120 QU120 QU120 QU120

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