What is a single jib portal crane?
The Single Jib Portal Crane stands as a pinnacle of efficiency and strength in material handling. Engineered for ports, shipyards, construction sites, and logistics hubs, its unique design allows multiple cranes to operate simultaneously on the same vessel, dramatically boosting productivity while saving valuable space. Utilizing advanced slewing mechanisms—such as rotating column or rolling bearing types—it minimizes the tail swing radius and maximizes pier coverage, making it an indispensable asset for busy operations.
What are the advantages of a single jib portal crane?
Space-Saving Design: The optimized slewing mechanism reduces the tail swing diameter, and the gantry structure occupies minimal ground space. This enables more cranes to work collaboratively in confined areas.
Superior Strength & Stability: The single boom design provides a higher lifting capacity compared to multi-link booms. A balanced luffing system, employing rack-and-pinion or change-wheel sets, ensures stable and reliable operations even under heavy loads.
Comprehensive Safety & Control: Equipped with load limiters, rail clamps, emergency brakes, and anti-collision sensors, the crane prioritizes safety. AC frequency control enables smooth and precise movements for hoisting, luffing, and 360° slewing.
Customization for Diverse Needs: A range of attachments is available, including grab buckets for bulk materials, belt conveyors, and telescopic funnels. Options for remote monitoring and automation pave the way for smarter, more efficient port operations.
Main Performance Parameters:
Lifting Capacity: Ranges from standard 5-100 tons up to 900 tons for heavy-duty applications.
Lifting Height: 10-30m above rail for ports, and up to 50m for shipyards; lowering depth of 15-20m below rail.
Working Radius: Maximum reach up to 50m, with a minimum radius of about 1/4 to 1/3 of the max.
Typical Work Speeds:
Hoisting: 15–90 m/min
Luffing: 20–60 m/min
Slewing: 0.5–3 rpm
Traveling: 15–35 m/min
Rail Span (L): Commonly 6.5m, 10.5m, or 16m.
Base Distance (B): Typically 9–14m.
Main Mechanisms:
Travel System: Features driven wheels for reliable movement, with configurations for slopes and curved tracks.
Slewing System: Employs a vertical motor and planetary gear reducer for high efficiency, protected by friction-type torque limiters.
Hoisting System: Includes motor, brake, reducer, drum, and wire rope, safeguarded by overload and height limiters.
Luffing System: Uses boom movement to change radius, with balanced compensation systems for efficient operation.
Innovative & Safe Maintenance Feature
A standout innovation in modern single jib portal cranes is the ground-level maintenance capability. Unlike traditional designs that require risky high-altitude work on platforms, this new type uses a truss boom and rack-and-pinion luffing, allowing the entire boom to be safely lowered to the ground for inspection and repair.
Benefits:
Enhanced Safety: Eliminates the dangers of working at height.
Reduced Downtime: Faster and easier maintenance significantly shortens repair times.
Cost Efficiency: No need for complex high platforms or auxiliary cranes for part replacement.
Improved Performance: Results in a lighter boom structure and reduced luffing power requirements.
Why Choose Our Single Jib Portal Crane?
Proven Quality: Our cranes are manufactured to meet international standards (DIN, FEM, IEC, AWS, GB), backed by over 14 years of global expertise.
Worldwide Support: We have supplied cranes to over 100 countries, providing professional installation, testing, and comprehensive after-sales service.
Competitive Edge: We offer energy-saving operation, low maintenance costs, and custom-engineered solutions tailored to your specific industry needs.
HI! Partner
Henan Yuntian, as a contemporary manufacturing leader, has consistently focused on cutting-edge technology and development in the lifting equipment industry. We invite you to get in touch for professional services including customized crane selection, accurate pricing, and technical design drawings tailored to your needs.
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sales@sgycranes.com
Phone:
+86-373-3055523
+86-17337353108
