Place of Origin:
Henan, China
Brand Name:
ZEHUA
Zehua’s MQ port pedestal crane is a heavy-duty, rail-mounted crane harbour solution engineered for ocean ports, docks, and industrial freight terminals. Fabricated in compliance with international FEM, DIN, and IEC standards, this high-performance portal crane integrates alongside dock crane units, rail mounted gantry crane lines, and floor mounted jib crane installations. Available in single-jib and four-bar linkage architectures, our crane harbour machinery delivers smooth, high-capacity cargo and container handling.
An MQ port pedestal crane is a rail-mounted traveling portal crane built upon an elevated pedestal base structure, specifically engineered for intensive loading, unloading, and cargo transfer in crane harbour environments.
Working Principle: Moving along quay rail runways, the crane combines a continuous 360-degree slewing system with motor-driven luffing and hoisting mechanisms to transfer cargo across lifting heights up to 45 meters and working radii tailored to port operations.
Jib Structural Configurations:
Single-Jib Crane Harbour Type: Features a simplified lattice or box boom structure with light deadweight and high strength, offering an economical solution for general breakbulk and cargo transfer.
Four-Bar Linkage Crane Harbour Type: Utilizes an articulated lever arm mechanism that maintains a horizontal load trajectory during luffing. This minimizes elevation changes, eliminates load sway, and reduces motor power consumption during continuous heavy duty.
Core Assemblies: Constructed with a high-strength portal gantry frame weighing 30,000 kg, slewing platform, structural jib boom, operator cabin, and machinery room housing Schneider electrical drives, PLC, pressure vessels, gearboxes, motors, and hydraulic pumps.
Robust Structure: Heavy-duty steel portal frame rated for A4 work duty and maximum wheel loads of 180–300 kN, built for high-duty cycle crane harbour work.
High Safety Performance: Integrated overload limit switches, storm rail clamps, emergency stop systems, pressure vessel protection valves, and anti-collision controls.
Precise Load Control: Driven by Schneider electrical systems and PLC automation for micro-speed positioning of heavy loads.
Easy Maintenance: Ergonomic machinery room layout with accessible gearboxes, pumps, motors, and centralized lubrication points.
Long Service Life: Applied with marine-grade protective coatings and durable gear trains built to operate reliably in temperatures from 20°C to 40°C.
Energy Efficiency: Four-bar linkage luffing reduces vertical load displacement, lowering motor power consumption during high-frequency cycles.
![]()
|
Single-boom Portal Crane
|
||
|
Load Capacity
|
40t
|
45t
|
|
Working Range
|
11~30m, 12~35m
|
12~35m, 13~28m
|
|
Wheel Dis.
|
10.5m, 16m
|
10.5m, 16m
|
|
Lifting Speed
|
25m/min
|
25m/min
|
|
Luffing speed
|
25m/min
|
25m/min
|
|
Rotating Speed
|
0.8~1.0r/min
|
0.8~1.0r/min
|
|
Traveling Speed
|
26m/min
|
26m/min
|
![]()
|
Four-link Portal Crane
|
|||
|
Load Capacity
|
16t
|
25t
|
40t
|
|
Working Range
|
30m, 33m, 35m, 37m
|
28m, 30m, 35m, 36m
|
30m, 35m, 39m, 40m, 43m
|
|
Wheel Dis.
|
10.5m, 12m, 16m
|
10.5m, 12m, 16m
|
10.5m, 12m, 16m
|
|
Lifting Speed
|
60m/min
|
55m/min
|
50m/min
|
|
Luffing speed
|
50m/min
|
50m/min
|
45m/min
|
|
Rotating Speed
|
1.0~1.5r/min
|
1.0~1.3r/min
|
1.0~1.2r/min
|
|
Traveling Speed
|
26m/min
|
26m/min
|
26m/min
|
Harbors & Sea Ports: Handles container transfers, breakbulk offloading, and heavy cargo distribution along commercial crane harbour quays.
Steel Mills & Metallurgy Fields: Moves heavy steel slabs, coils, billets, and raw scrap metal under demanding outdoor conditions.
Shipyards: Assists in hull block positioning, heavy steel plate handling, and vessel repair operations along crane harbour drydocks.
Manufacturing Plants: Transports heavy machinery, large industrial castings, and pre-fabricated structural modules.
Warehouses & Freight Hubs: Connects rail sidings with open storage yards to accelerate intermodal freight distribution.
Power Plants & Mining Industry: Offloads massive turbines, industrial boilers, generators, and bulk minerals at waterfront receiving yards.
Professional Crane Manufacturing Experience: Based in Henan, China, Zehua is an original crane manufacturer with extensive engineering facilities dedicated to producing overhead, gantry, jib, and portal cranes.
Customized Design Capability: We provide full OEM custom engineering, tailoring lifting capacity (10t–100t), boom reach, lifting height, and wheel load limits for your specific crane harbour project.
International Quality Standards: Equipment is designed, fabricated, and inspected in strict compliance with FEM, DIN, IEC, and AWS standards.
Strict Quality Inspection: Every crane harbour assembly undergoes complete structural evaluation, weld inspection, certified Machinery Test Reports, and video outgoing-inspections prior to shipment.
After-Sales Support: Backed by a 1-year warranty and a dedicated technical team with engineers available to service machinery overseas for installation and commissioning.
Installation Requirements: Terminal tracks must be level and pre-aligned to support 180–300 kN maximum wheel loads, supported by a 3-phase 380V 50Hz power hookup and auxiliary mobile cranes during erection.
Daily Inspection Points: Inspect wire ropes, brake pads, slewing gear lubrication, Schneider electrical controls, safety limit switches, and pressure vessels before operating the crane harbour unit.
Maintenance Recommendations: Conduct periodic checks on gearbox oil levels, hydraulic pumps, motor brushes, and structural welds. Maintain protective anti-corrosion paint coatings.
Spare Parts Availability: Zehua maintains direct factory inventory for core replacement parts—including bearings, motors, gear sets, pump seals, and electrical modules—for rapid global shipment.
A: Zehua MQ pedestal crane harbour systems offer rated loading capacities ranging from 10 tons to 100 tons (including standard 25t, 35t, and 40t models) tailored for port, dock, and metallurgical field applications.
A: Single-jib crane harbour models offer a simpler structure, lighter deadweight, and high cost-efficiency. Four-bar linkage crane harbour models maintain a horizontal load trajectory during luffing, minimizing height fluctuations and energy usage during heavy continuous duty.
A: Yes. As an original equipment manufacturer, Zehua provides comprehensive technical support. Our qualified engineers are available to service machinery overseas, assisting with assembly guidance, commissioning, and operator training.
A: Yes, we provide full OEM customization. We can adjust the wheel load (180–300 kN), rail gauge, boom reach, lifting height (up to 45m), and electrical setup to integrate smoothly into your terminal layout.
Send your inquiry directly to us