10T-30M Portal Crane Port Cranes for Container Unloader
DOUBLE LEVER JIB CRANE
This type of crane is portal supported with round cylinder (four leg) , which is moving with full rotary, arm frame of double lever jib, the release lever which moves the symmetrical weight is balanced, working with hook, grab and container spreader.
(1) With Beautiful appearance
(2) Safety and reliable work
(3) Advanced performance
(4) Convenient maintenance
(5) With durable advantage
(6) Available：The crane permits level-luffing and slewing with a load. The hoisting, slewing, and luffing mechanisms can be operated individually or in combination.
(7) Control：AC variable frequency speed/ PLC control, and can be installed intelligent "state monitoring control system"
(8) Standard：designed and manufactured according to "GB3811-83 crane Design Standard" and "GB6067-85 crane Safety regulation
Core Performance Parameter Table
Feature |
Men-Zuo 10T/30M Four-Link Crane |
Traditional Jib Crane (Baseline) |
Rated Capacity |
10 Tons |
10 Tons |
Max. Working Radius |
30 Meters |
30 Meters |
Core Mechanism |
Four-Link Combination Jib, Near-horizontal movement of the spreader during luffing |
Simple straight or articulated jib, Significant arc movement of the load during luffing |
Positioning Precision |
Extremely High, enables millimeter-level micro-movements, minimal load swing |
Relatively Low, combined luffing/hoisting causes sway, requiring time for positioning |
Drive Energy Consumption |
Low (10-15% lower than traditional models), minimal energy for horizontal travel |
High, continuous energy required to overcome potential energy changes |
Structural Rigidity |
Exceptional, rigid frame minimizes deflection; jib-end deformation < 50mm |
Weaker, cantilever structure leads to significant deformation under full load |
Operational Efficiency |
High, single-cycle time can be reduced by over 20% |
Lower, longer cycle times due to difficult positioning and complex operation |
Wind Resistance |
Reliable operation in Beaufort 7, safe shutdown in Beaufort 10 |
Stability often decreases at Beaufort 6, operation typically stops at Beaufort 8 |
Foundation Requirements |
Lower, optimized weight reduces wheel load and civil engineering costs |
Higher, stronger foundation often needed to ensure stability |
Long-term Maintenance |
Lower Cost, smooth transmission reduces wear, design life ≥25 years |
Higher Cost, shock and vibration accelerate structural fatigue and part wear |
Applications
Perfect for scenarios requiring frequent and precise lifting, such as: Assembly lines in large workshops, Steel structure prefabrication plants, Logistics centers and material warehouses, Berths in small and medium-sized ports.
Why Choose 10T/30M Portal Crane?
The advantages are clear from the comparison table above:
(1) For Efficiency: Faster cycle times and pinpoint accuracy directly increase your productivity.
(2) For Safety: Superior rigidity and stability provide the highest level of protection for your personnel, equipment, and cargo.
(3) For Economy: Reduced energy consumption, lower foundation costs, and extended service life mean a superior return on your investment.
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