Product Introduction
LDY Metallurgical Single-Girder Bridge Crane is a special lifting device designed for the metallurgical industry, used for lifting molten metal in high-temperature environments. It adopts a single-girder structure and is equipped with a dedicated metallurgical electric hoist featuring dual braking and thermal insulation protection, with a rated lifting capacity generally not exceeding 10 tons. The equipment is characterized by high safety and high-temperature resistance, ensuring reliable operation during the lifting of molten metal.
Product Parameter
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Span |
m |
7.5 |
10.5 |
13.5 |
16.5 |
19.5 |
22.5 |
25.5 |
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Capacity |
t |
1~10T |
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Total weight |
kg |
1920~15570 |
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Trolley weight |
kg |
439~1396 |
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Max. Wheel load |
kn |
16.1~92.2 |
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Travel rail |
P24~P43 |
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Lifting speed |
m/min |
0.8/5 |
0.8/5 |
0.8/5 |
0.8/5 |
0.8/5 |
0.8/5 |
0.8/5 |
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Lifting height |
m |
≥ 6 |
≥ 6 |
≥ 6 |
≥ 6 |
≥ 6 |
≥ 6 |
≥ 6 |
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Total motor power |
kw |
4.31 |
4.31 |
4.31 |
4.31 |
4.67 |
4.67 |
4.67 |
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Crane speed |
m/min |
3-30 |
3-30 |
3-30 |
3-30 |
3-30 |
3-30 |
3-30 |
|
Trolley speed |
m/min |
2-20 |
2-20 |
2-20 |
2-20 |
2-20 |
2-20 |
2-20 |
|
Working duty |
M3/M3~M5/A5 |
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Product Feature And Application
Features of the LDY Metallurgical Single-Girder Bridge Crane：
High-temperature resistance: A thermal insulation layer is provided at the bottom of the main girder to resist high-temperature radiation; the entire crane is suitable for ambient temperatures ranging from -10°C to +60°C.
High safety: The hoisting mechanism is equipped with a dual braking system (main brake + independent safety brake), and features an overload limiter, dual upper limit switches (gravity hammer + conventional), and an emergency power-off function.
Compact structure: Adopts a combination of a single main girder and a metallurgical electric hoist, resulting in light deadweight and small footprint, suitable for applications with limited clearance in workshops.
High duty classification: The entire crane has a duty classification of A6 (heavy duty), suitable for the frequent lifting and intermittent operation required in metallurgical working conditions.
Flexible operation: Standardly equipped with ground pendant or wireless remote control, allowing operators to stay away from high-temperature molten metal areas.
Applications of the LDY Metallurgical Single-Girder Bridge Crane:
It is used in metallurgical, smelting, and foundry applications within indoor workshops characterized by high temperatures, high dust levels, and thermal radiation, for the lifting and transport of molten metal containers such as small ladles for iron, steel, and pouring.
Production details
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Main Girder
Adopts a box or U-shaped structure welded from steel plates, used to bear loads and ensure the rigidity of the entire machine. A thermal insulation layer is provided at the bottom to resist high-temperature radiation. |
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End Girder
Adopts a box structure welded from U-shaped channel steel, connected to the main girder via bolts or flanges. Wheel assemblies are installed at both ends. |
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Electric Hoist
A dedicated metallurgical electric hoist equipped with a dual braking system (main brake + independent safety brake), featuring an overload limiter and thermal insulation protection. |
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Wheel
Made of cast steel, with surface heat treatment and thickened rims, suitable for high-temperature environments. |
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Electrical Box
Adopts a sealed protective enclosure, with internal components selected for high temperature resistance and vibration resistance. Features overload protection, emergency power-off, and other functions. |
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Controller Typically operated via a ground pendant or wireless remote control. The pendant is heat-resistant and vibration-resistant, while the remote control features an emergency stop button and multi-speed adjustment functions, allowing operators to stay away from high-temperature areas. |
Certification
Company Profile
Packaging&Shipping
FAQ
Q: What is the biggest difference between the LDY metallurgical single-girder bridge crane and an ordinary single-girder bridge crane?
A: The core difference lies in safety. It is designed strictly according to metallurgical crane standards, with the hoisting mechanism equipped with dual braking (including a safety brake), effectively preventing falling caused by high temperatures or power outages. A thermal insulation layer is provided under the main girder, and electrical components are made of high-temperature resistant materials, specifically for lifting molten metal.
Q: How long can it operate continuously in a high-temperature environment?
A: It is designed for an ambient temperature range of -10°C to +60°C, and the bottom of the main girder can withstand radiant heat up to 300°C. The metallurgical electric hoist uses Class H insulation, allowing intermittent frequent operation in high-temperature, high-dust environments, but continuous full-load operation is not recommended.
Q: What is the maximum lifting capacity? Can it lift steel ladles?
A: The lifting capacity typically ranges from 1 ton to 10 tons, generally not exceeding 10 tons. It is suitable for lifting small iron ladles, steel ladles, or pouring ladles. For lifting large-tonnage steel ladles, a larger-capacity double-girder metallurgical crane is required.
Q: What if the main hoist brake fails?
A: The LDY metallurgical single-girder bridge crane is equipped with a dual braking system. When the main brake fails, the safety brake instantly locks the drum, forcibly stopping the descent and preventing the molten metal from spilling.
Q: What are the operation methods? Is a cab required?
A: The primary operation methods are ground-based (pendant or wireless remote control), allowing operators to stay away from high-temperature areas. A cab is generally not provided. If visibility is obstructed or precise positioning is required, a heat-resistant operator's cab that moves with the trolley can be added.
Q: What are the key safety precautions during operation?
A: Overloading is strictly prohibited. Before lifting molten metal, it is essential to verify that the dual braking system is functioning properly. Prolonged suspension in high-temperature areas is strictly prohibited. During operation, observe the track and wheels for any abnormalities. In the event of a power outage, immediately press the emergency stop button.
Q: What are the key points of daily maintenance?
A: Focus on three aspects:
Braking system: Daily inspection of brake clearance and wear.
Thermal insulation device: Check that the thermal insulation plate under the main girder is intact; repair immediately if detached.
Wire rope: Regular lubrication and inspection for broken wires or crushing. Under metallurgical working conditions, the replacement cycle is generally shorter than that for ordinary cranes.