These two products represent different design philosophies and application requirements:

• LD Type - Cost-Effective Solution:  Designed according to GB standards. It is known for its robust structure, high versatility of spare parts, and exceptionally low initial procurement cost. It is ideal for general machining, simple warehousing, and low-frequency lifting.

• FEM/DIN Type - High-Performance Solution: Manufactured according to European Federation of Materials Handling standards.

  -Compact Clearance: Features a Low Headroom design, where the critical "C-dimension" is reduced by 20%-30% compared to the LD model, allowing for higher lifting heights in low-ceiling factories.

  -Drive System: Equipped with Variable Frequency Drives (VFD) as standard, ensuring exceptionally smooth operation, minimal load swing, and extended motor/gearbox life.

  -Maintenance-Free: Uses long-life lubricated gearboxes with a protection rating of IP55.

An Underslung /Underhung crane has its tracks fixed directly to the lower flange of the factory’s roof beams (I-beams) rather than being supported by ground columns.

• Space Maximization: It is the only solution that consumes zero floor space, making it ideal for facilities without pre-installed support columns.

• Full Coverage: The trolley can travel extremely close to the walls, ensuring minimal "dead zones" for lifting.

• Inter-bay Transfer: With our specialized Interlock system, the underslung crane can connect with cranes in adjacent bays, allowing the hoist to travel across spans for seamless material flow throughout the workshop.

This is a customized "space-shifting" solution for facilities with extremely low overhead clearance.

• Technical Logic: While traditional hoists hang below the girder, the Off-Trolley design mounts the lifting mechanism on the side or a specific offset position of the main beam.

• Breaking Limits: In environments with very low ceilings (e.g., less than 4 meters from the beam bottom to the floor), conventional cranes cannot provide sufficient lifting travel.

• Core Benefit: The offset structure allows the hook to rise almost flush with the main girder, gaining an additional 500mm-800mm of lifting stroke without modifying the factory structure.

The cost of a single girder overhead crane is not fixed by capacity alone. Several technical variables determine the final investment:

1. Lifting Capacity & Span

 -Capacity: Higher tonnages require reinforced steel, larger motors, and high-capacity hoists.

 -Span: Longer spans (the distance between runways) require a more rigid Box Girder structure to control deflection, increasing the amount of steel used.

2. Duty Class (Working Intensity)

 -A3/M3 (Light Duty): Ideal for maintenance or low-frequency assembly. Lower initial cost.

 -A5/M5 (Heavy Duty/European): Designed for 24/7 production lines. These cranes use high-end components to reduce long-term maintenance costs and downtime.

3. Product Configuration (LD vs. FEM)

 -Traditional LD Series: High versatility and the most economical upfront price.

 -FEM/DIN European Series: Features a Low Headroom design and Variable Frequency Drives (VFD). While the initial cost is 20-40% higher, it offers smoother operation and saves significant building height.

4. Customization & Environment

 -Special Designs: Features like Explosion-proof, Metallurgical (Foundry), or Outdoor Protection require specialized certifications and materials, which increase the price.

 -Smart Controls: Upgrading from a standard pendant to a Wireless Remote Control or a cabin increases both safety and cost.

5. Logistics & Installation

 Large cranes (spans over 11.8m) may require Split-Girder designs to fit into shipping containers, affecting both manufacturing and on-site assembly costs.

To receive a precise price within 24 hours, please provide:

  1. Lifting Capacity (Tons)

  2. Span (Meters)

  3. Lifting Height (Meters)

  4. Power Supply (e.g., 380V/50Hz/3P)

  5. Application Environment (e.g., Steel mill, Warehouse, etc.)

                             Top running Single Girder Cranes                                                                               Under-Running (Underhung) Single Girder Cranes

Top-Running Single Girder Cranes:Designed for heavy-duty applications and longer spans, the top-running configuration features end trucks that travel along the top of the runway rails. This setup provides maximum lifting height and greater load capacity, making it the ideal choice for facilities where heavy materials must be moved through high-clearance areas.

Under-Running (Underhung) Single Girder Cranes:Underhung cranes are engineered for flexibility and space optimization. By suspending the end trucks from the bottom flange of the roof-mounted runway beams, these cranes eliminate the need for floor columns, thus maximizing usable floor space. They are particularly effective in facilities requiring precise side-approach or where multiple crane bays need to be interconnected for seamless material transfer.