Double Girder Bridge Crane Key Features & Advantages

• 1. Unparalleled Load Capacity & دهانه:

  • Designed to handle extreme loads (ranging from 20 tons to 500+ tons and beyond) با سهولت.
  • Capable of traversing longer spans efficiently and safely due to its inherently rigid twin-girder design.
  • Ideal for large bays, wide manufacturing halls, and outdoor gantry applications.

• 2. Superior Structural Rigidity & Stability:

  • Two parallel main girders provide immense resistance to bending and twisting under heavy loads.
  • Significantly reduced deflection compared to single girder cranes, ensuring precise load positioning and enhanced safety.
  • Stable platform minimizes load sway, improving operator control and safety.

• 3. Optimized Hook Height:

  • The trolley and hoist run on top of the girders, maximizing the available hook height beneath the crane.
  • Crucial for facilities with limited headroom or requiring deep lifting into pits or furnaces.
  • Allows for greater vertical utilization of your building space.

• 4. Enhanced Durability & Long Service Life:

  • Robust construction using high-grade steel (typically ASTM A36 or equivalent) withstands harsh conditions, high temperatures, corrosive environments, and intensive usage (FEM 1 بامداد, 2متر, 3m classes).
  • Designed for demanding duty cycles and continuous operation.

• 5. Greater Flexibility & Versatility:

  • Ample space between girders allows for easy integration of auxiliary equipment like walkways, service cranes, lighting, cable trays, magnet panels, or specialized lifting attachments (grabs, spreaders, etc.).
  • Accommodates multiple trolleys or specialized hoists for complex handling tasks.

• 6. Precision Control & Maneuverability:

  • Available with smooth and precise variable frequency drive (VFD) control for both bridge travel and trolley motion, enabling soft starts/stops and accurate positioning.
  • Choice of pendant control (wired) or advanced radio remote control for optimal operator safety and visibility.

• 7. Advanced Safety Features (استاندارد & اختیاری):

  • Overload Limit Switches: Prevent lifting beyond rated capacity.
  • Emergency Stop Buttons: Instantly halt crane operation.
  • Bumpers/End Stops: Absorb impact at runway ends.
  • Anti-Collision Systems: For multi-crane installations.
  • Crane Travel Limit Switches: Prevent over-travel.
  • Fail-Safe Brakes: On hoist, واگن برقی, and bridge drives.
  • Walkways & Ladders: For safe inspection and maintenance (often standard).

• 8. Reliable Drive Systems:

  • High-torque motors and heavy-duty crane gearbox designed for industrial environments.
  • Precision-machined end trucks with double-flanged wheels ensure smooth, true travel along the runway beams with minimal drift.

Double Girder Bridge Crane – Technical Parameter Table

Key Notes on Parameters:

• 1. All Values are Indicative: Exact specifications are engineered to order based on:
  • Specific load diagrams & usage patterns.
  • Building/runway structure details.
  • Environmental conditions (گرد و غبار, heat, chemicals).
  • Required duty class (FEM/CMAA).
  • Local safety regulations.
• 2. VFD Control: Strongly recommended for all motions (Hoist, Trolley, Bridge) for smooth acceleration/deceleration, precise positioning, reduced mechanical stress, and energy savings.
• 3. Duty Class is Paramount: Selecting the correct FEM or CMAA class ensures the crane is robust enough for its intended number of lifts, load spectrum, and operating hours, directly impacting longevity and safety.
• 4. Hook Height is Critical: Double girder design maximizes crane hook height. Accurate measurement from the runway rail top to the floor (and any obstructions) is essential.
• 5. Runway Quality: Crane performance and longevity heavily depend on a perfectly level, straight, and aligned runway system built to appropriate structural standards.
• 6. Certification: Cranes typically require third-party inspection and load testing (به عنوان مثال, 125% of SWL) before commissioning and periodically during service life.

Double Girder Bridge Crane Applications

• 1. Steel Mills & ریخته گری (Slab, coil, ladle handling)

• 2. Power Generation Plants (Turbine, boiler maintenance)

• 3. Heavy Machinery Manufacturing

• 4. Large-Scale Warehousing & مراکز توزیع

• 5. Shipbuilding & Dry Docks

• 6. Mining & Mineral Processing

• 7. Aerospace Manufacturing

• 8. Large Fabrication Shops

• 9. Pulp & کارخانه های کاغذ سازی

• 10. Scrap Yards & Recycling Facilities

Why Choose a Double Girder Bridge Crane?

• 1. Maximum Lifting Capacity & دهانه: Handle the heaviest loads over the widest areas.
• 2. Superior Rigidity & Precision: Minimize deflection and sway for accurate placement.
• 3. Optimal Hook Height: Utilize vertical space efficiently.
• 4. Unmatched Durability: Built for the toughest environments and continuous use.
• 5. ایمنی پیشرفته: Engineered with robust safety systems.
• 6. Future-Proof Flexibility: Adaptable for auxiliary equipment and evolving needs.
• 7. Long-Term ROI: Reduced downtime, lower maintenance costs, extended service life.

Custom Engineered Solutions

Every Double Girder Bridge Crane is engineered to order based on your specific requirements: capacity, span, lifting height, duty cycle, operating environment, control preferences, and safety regulations. We provide detailed CAD layouts and project management.

Contact us today for a detailed consultation and quote. Let our engineering team design the optimal Double Girder Bridge Crane solution to enhance your productivity, ایمنی, and bottom line.