A Deep Dive into Double Girder Overhead Crane Types and Innovations
Understanding Common Challenges in Selecting Double Girder Overhead Cranes
When it comes to heavy lifting in industrial applications, double girder overhead cranes stand out as a robust solution. However, potential buyers often encounter several challenges when selecting the right crane for their specific operational needs. Common questions may revolve around lifting capacity, span length, lifting height, and the specific features needed for unique applications. This article will address these concerns and provide comprehensive insights into the types, specifications, and innovations surrounding double girder overhead cranes, enabling you to make informed decisions.
What is a Double Girder Overhead Crane?
A double girder overhead crane, also known as a double girder bridge crane or double girder EOT (Electric Overhead Traveling) crane, features two parallel beams that provide superior lifting capabilities compared to single girder models. Because they are designed for heavy-duty applications, double girder cranes are comprised of more complex components, which can make them a more significant investment.
Core Components of a Double Girder Overhead Crane
- Bridge Girders: The primary support structure that carries the weight of the load.
- End Trucks: The parts that allow the crane to move along the runway.
- Hoist Assembly: The mechanism responsible for lifting and lowering the load.
Double Girder Overhead Crane Types
LH Type Double Girder Overhead Crane With Hoist Trolley
- Capacity: 5-32/5 tons
- Span Length: 10.5-31.5 m
- Lifting Height: 3-20 m
- Work Duty: A3, A4
- Rated Voltage: 220V – 690V, 50-60Hz, 3-phase AC
- Operating Conditions: Temperature range of -25℃ to +50℃, relative humidity ≤85%
Specifications Table for LH type Double Girder Overhead Cranes
| Capacity (t) | Span (m) | Lifting Height (m) | Lifting Speed (m/min) | Working Duty | Total Power (kW) | Price ($) |
|---|---|---|---|---|---|---|
| 5 | 10.5-31.5 | 16 | 12.5/15.5 | A5, A6 | 22.8-27.8 | 15,600−15,600 – 29,500 |
| 10 | 10.5-31.5 | 16 | 8.5/3.2 | A5, A6 | 26.8-34.8 | 17,200−17,200 – 32,500 |
| 20 | 10.5-31.5 | 12/14 | 7.2/9.7 | A5, A6 | 55.6-69.0 | 25,500−25,500 – 45,900 |
| 32 | 10.5-31.5 | 14/16 | 6.0/7.4 | A5, A6 | 71.3-86.3 | 36,200−36,200 – 59,800 |
QD Type Double Girder Overhead Crane With Winch Trolley
- Capacity: 5-800/150 tons
- Span Length: 10.5-31.5 m
- Lifting Height: 3-50 m
- Work Duty: A5, A6
- Rated Voltage: 220V – 690V, 50-60Hz, 3-phase AC
- Operating Conditions: Temperature range of -25℃ to +50℃, relative humidity ≤85%
Specifications Table for QD-type Double Girder Overhead Cranes
| Capacity (t) | Span (m) | Lifting Height (m) | Lifting Speed (m/min) | Working Duty | Total Power (kW) | Price ($) |
|---|---|---|---|---|---|---|
| 5 | 10.5-31.5 | 16 | 12.5/15.5 | A5, A6 | 22.8-27.8 | 15,600−15,600 – 29,500 |
| 10 | 10.5-31.5 | 16 | 8.5/3.2 | A5, A6 | 26.8-34.8 | 17,200−17,200 – 32,500 |
| 50 | 10.5-31.5 | 12/16 | 5.0/6.1 | A5, A6 | 93.5-110.5 | 49,500−49,500 – 72,000 |
| 100 | 13-31 | 18/20 | 3.1/3.9 | A5, A6 | 136-174 | 115,000−115,000 – 166,700 |
For more detailed specifications, refer to SLKJCrane’s catalog of LH-type and QD-type double girder overhead cranes.
Innovative Solutions and Applications
Double girder overhead cranes not only serve general lifting needs but also adapt to various industrial scenarios thanks to their customizable configurations. Here are a few notable innovations and applications:
QE Double Trolley Metallurgical Crane
- Application: Primarily for transporting scrap steel ladles in steel plants.
- Specifications:
- Lifting Capacity: 320 tons + 80 tons
- Span: 21.5 m
- Lifting Height: 22 m
- Operating Duty: A7
Safety Features
This crane includes safety protocols like short circuit protection, overload protection, and an advanced control system to maintain unlifting stability.
QD Fully Automatic Unmanned Overhead Crane
- Application: Designed for vanadium product factories, efficiently lifts and positions materials with minimal human intervention.
- Specifications:
- Lifting Capacity: 4 tons
- Span: 13.5 m
- Lifting Height: 9 m
- Operating Mode: Fully automatic
Technical Innovations
Equipped with anti-sway control systems and real-time monitoring, this system ensures precise operations, enhancing overall efficiency and safety.
QC Upper Rotating Electromagnetic Crane
- Application: Ideal for handling standard-length steel.
- Specifications:
- Capacity: 12.5 tons + 12.5 tons
- Span: 31.5 m
- Lifting Height: 10 m
- Work Duty: A7
Special Features
Utilizes an electromagnetic beam for lifting while enabling horizontal rotation, making it especially useful in steel distribution centers.
Selecting the Right Double Girder Overhead Crane
When choosing between different types of double girder overhead cranes, consider:
- Capacity Needs: Match the lifting capacity with your operational demands.
- Span and Height Requirements: Ensure the crane can fit and operate within the required space.
- Duty Cycle: Choose a crane that aligns with the work environment and frequency of operation.
- Special Features: Evaluate any additional features that may enhance safety or operational efficiency based on your industry specifics.
Comparing Double Girder to Single Girder Overhead Cranes
| Parameter | Single Girder Overhead Cranes | Double Girder Overhead Cranes |
|---|---|---|
| Lifting Capacity | 1-32 tons | 5-800 tons |
| Work Duty | A1-A5 | A3-A8 |
| Span Length | 7.5-31.5 m | 10.5-40.5 m |
| Lifting Height | 6-20 m | 12-28 m |
| Lifting Speed | 0.32-8 m/min | 0.63-63 m/min |
| Trolley Travelling Speed | 3.2-40 m/min | 10-63 m/min |
Why Choose SLKJ Crane for Your Double Girder Overhead Crane Solutions?
At SLKJ Crane (www.slkjcrane.com), we pride ourselves on offering tailored solutions for all types of overhead cranes. Our team of specialists is equipped to help you navigate the complexities of crane selection, ensuring that you get the most reliable and efficient lifting solutions for your business needs. Our commitment to quality and safety means that we comply with all industry standards, ensuring that you receive a product that meets your operational requirements.
FAQ
If you are in the market for a double girder overhead crane or need expert advice tailored to your specific lifting requirements, don’t hesitate to reach out to us. Our dedicated team is here to assist you in selecting the ideal crane and ensuring its seamless integration into your operations.
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