Overview of the QD A5-A7 Double-Girder Overhead Crane

The QD A5-A7 Double-Girder Overhead Crane is engineered for robust, heavy-duty lifting in demanding industrial environments. This crane features a sturdy box-shaped main beam, a hoisting trolley, and a reliable crane operating system, complemented by safety platforms for easy maintenance. Its dual-girder design ensures exceptional stability, precise load handling, and long-lasting durability, making it a top choice for industries requiring efficient and safe material handling solutions.

For detailed insights into FEM standards and EU CE certification, explore the relevant guidelines.

Applications of the QD A5-A7 Double-Girder Overhead Crane

This overhead crane excels across various industrial sectors due to its versatile and durable design. Key applications include:

• Heavy-duty performance: Supports continuous operation with A5–A8 work grades for demanding tasks.

• Adaptability to extreme conditions: Performs reliably in high or low temperatures and explosion-proof settings.

• Modular and standardized construction: Offers strong rigidity for consistent performance.

• User-friendly installation and upkeep: Simplifies setup and maintenance processes.

• Flexible control options: Choose between wireless remote control or cabin-based operation for operational ease.

• Advanced safety features: Equipped with overload limiters, limit switches, anti-collision systems, and sound/light alarms for enhanced safety.

Main Beam Design

The crane’s box-type girder is crafted using advanced submerged arc welding technology, ensuring durability and precision. Key features include:

• Compliance with FEM and CE standards through rigorous non-destructive testing.

• Constructed from premium carbon steel (Q235B, Q355B, or Q355E) for superior strength.

• Engineered for long-term reliability in heavy-duty lifting operations.

Driving Mechanism

The driving system of the QD A5-A7 crane ensures smooth and stable operation, featuring:

• Motor: High-performance YZR series for consistent power delivery.

• Reducer: ZQ series for efficient torque transmission.

• Brake: YW series with asbestos-free brake pads and discs for safe and reliable stopping.

Wheel and Bearing System

The crane’s wheel and bearing system is built for durability and high performance:

• Wheels crafted from 50SiMn or 65Mn alloy steel, tempered for enhanced wear resistance.

• High load-bearing capacity for heavy-duty applications.

• Spherical self-aligning bearings for smooth operation.

• Modular design to meet diverse operational requirements.

Electrical System

The electrical system is designed for precision and reliability:

• Smooth hoisting with optional frequency converters for precise control.

• High-speed, low-inertia traveling performance for efficient operations.

• Compact, easy-to-maintain control box with IP54 protection level for durability.

Safety and Protection Features

Safety is paramount in the QD A5-A7 Double-Girder Overhead Crane, with features including:

• Protective covers and guardrails to prevent hook collisions.

• Circuit self-checking and overload protection for operational safety.

• Rainproof motors and control boxes for outdoor models.

• Comprehensive safety systems, including anti-collision devices, sound/light alarms, limiters, overspeed protection, and zero-pressure safeguards.

Optional Components and Brands

Customize your crane with high-quality components from trusted brands:

• Motors: Wuxi Xindali, Ningbo Xindatong, Wuxi Hongda, or imported options.

• Reducers: Taixing, Tailong, Dongtai, or imported brands.

• Electrical Components: Chint or imported brands for reliable performance.

• Inverters: CATET, Huichuan, or imported brands for precise control.

• Remote Controls: Taiwan Yuding, Apollo, or imported brands for flexible operation.

For more details or to request a quote, contact our team today.