Single Jib Portal Crane

Authentication mark:

This crane is mainly used in offshore oil and gas platforms, container ports, and shipbuilding yards.

Capacity:

30 t – 100 t (single lift) 50 t – 120 t (tandem lift, twin 20ft containers)

Lifting Height:

Rail 40m+Under Rail 36m

Span:

16 m – 35 m (distance between quay rails)

Voltage/Hertz:

10kV / 50Hz / 3-phase

Working Class:

A7, A8

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Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

What is this?

The single jib portal crane is a portal-type slewing crane widely used in port terminals, stockyards, shipyards, and cargo transfer stations. It adopts a single jib structure, and through the lifting and lowering of the hook or grab, the luffing motion of the jib, the traveling of the crane along rails, and the 360-degree full slewing function, it achieves efficient loading and unloading of bulk cargo, general cargo, containers, and heavy-lift items. If you are operating a bulk cargo terminal, general cargo terminal, shipyard, or railway freight yard, and need a portal slewing crane with simple structure, strong load capacity, and flexible operation, then this product is designed for you.

Why choose a single jib portal crane over a twin jib portal crane?

Compared to twin jib portal cranes, the single jib portal crane offers five core advantages:

First, simpler structure – with fewer components, manufacturing and maintenance costs are lower, and the failure rate is significantly reduced compared to twin jib designs.

Second, stronger load capacity – the high rigidity of the single jib makes it ideal for heavy-duty operations, with lifting capacity from 50 tons to 300 tons, especially suitable for heavy-lift handling and shipyard lifting.

Third, lower luffing power consumption – the luffing mechanism requires less power, reducing energy consumption by approximately 15%-20% compared to twin jib designs, making long-term operation more economical.

Fourth, better operator visibility – without complex tie rods and a topping platform, the operator enjoys an unobstructed view, enhancing operational safety.

Fifth, easier maintenance – the simple design means fewer lubrication points, making daily inspections and repairs faster and more convenient.

Enhance your bulk cargo and heavy-lift handling capacity with more professional single jib portal cranes.

What can we do for you?

We understand that every terminal has different cargo types, different operational intensities, and different site conditions. Therefore, we offer flexible customization options: lifting capacity from 30 tons to 300 tons; working radius from 18 meters to 45 meters; lifting height from 10 meters above rail to 20 meters below rail; slewing angle of 360 degrees full slewing; attachment options including hook, grab, container spreader, or lifting magnet; control options of cabin operation or remote radio control. Whether you operate a bulk cargo terminal, general cargo terminal, shipyard, or railway freight yard, we can match the most suitable lifting capacity and working radius for you.

Unsure? Don't know?

Not sure what working radius is needed to cover your operation area? Not sure what lifting height is needed to meet your ship unloading or truck loading requirements? No problem. Just tell us: your dock front or stockyard dimensions, the maximum cargo weight and type you need to handle, your dock water depth or railway line position, and your target operational efficiency. Our engineers will provide you with an accurate quote and CAD drawings within 24 hours. Click the button below or contact us via WhatsApp/email to get your customized solution.

💡 Tip: We offer free selection consulting. Even if you are unsure about specific parameters, feel free to describe your operation scenario and cargo type, and we will calculate for you.

APPLICATION SCENARIO

[1] Offshore Platforms – Lifting drilling equipment, pipes, and supplies to/from supply vessels.

[2] Container Quays – Loading/unloading containers from ships to shore with high‑speed operation.

[3] Bulk Cargo Terminals – Handling coal, ore, grain, and cement using grabs or hooks.

[4] Shipyards – Assembling ship sections, moving heavy blocks, and launching vessels.

[5] Offshore Wind Farms – Installing turbine components and servicing foundations.

ADVANTAGES

[1] Marine Environment Certified – Corrosion‑resistant coatings, stainless steel fasteners, and sealed electrical enclosures.

[2] High Lifting Capacity – Up to 200t for heavy offshore and quayside lifts.

[3] Full Slewing Capability – 360° rotation for flexible load positioning.

[4] Smooth Luffing and Hoisting – Hydraulic or frequency‑controlled drives for precise control in rough seas.

[5] Low Maintenance – Modular design and offshore‑proven components reduce downtime.

STRUCTURAL DIAGRAM AND PARAMETER TABLE

Parameter	Specification
Working Class	A7, A8
Lifting Capacity	30 t – 100 t (single lift) 50 t – 120 t (tandem lift, twin 20ft containers)
Outreach (Waterside)	35 m – 70 m (from quay rail to ship centerline, for vessel sizes up to 24,000 TEU)
Back Reach (Landside)	15 m – 25 m (from quay rail to truck lane)
Rail Gauge	16 m – 35 m (distance between quay rails)
Lifting Height (Above Rail)	30 m – 60 m (stacking height: 8 – 20 containers high above rail)
Lifting Depth	15 m – 25 m
Lifting Speed	Fully loaded: 35 – 90 m/min Empty: 70 – 180 m/min
Trolley Travelling Speed	120 – 240 m/min (high-speed for efficient ship-to-shore operation)
Crane Travelling Speed	20 – 45 m/min (along quay rail for repositioning)
Boom Hoisting/Lowering Time	2 – 7 minutes (one-way, for ship clearance or storm condition)
Control Method	Cabin control (ergonomic design, dual-joystick) / Remote radio control (optional) / Fully automatic (optional)
Power Supply	10kV / 50Hz / 3-phase
Temperature	-25°C to +45°C (marine environment)

Six core advantages

Full Scenario Coverage

Nucleon covers over 20 product categories including ladle cranes, multi-purpose cranes, intelligent cranes, overhead/portal cranes, RTG, RMG, deck cranes, portal cranes, girder launchers, yacht cranes, KBK, and jib cranes. From steel smelting to port handling, bridge construction to ship equipment, Nucleon provides one-stop lifting solutions. Whether standard models or extreme-condition customizations, Nucleon possesses mature technical expertise and proven track records, saving customers from dealing with multiple suppliers.

Military-Grade Quality Standards

We use high-strength steel from Baosteel/Ansteel for key structural components, with 100% NDT inspection and one-clamp CNC gantry machining. Every machine undergoes 120% dynamic load and 125% static load tests before delivery, with continuous operation verification under extreme conditions. Even in 24/7 continuous casting plants, -40°C arctic ports, or high-temperature humid ship cabins, our cranes maintain millimeter-level precision and zero-drift stability—quality that stands the test of time.

Extended Longevity & Low Maintenance Cost

Our main girders are FEA-optimized and double-submerged arc welded, with a design life of ≥30 years. Key bearings are lifetime lubrication-free, and hardened travel wheels extend wear cycles by 3 times. Core components feature modular quick-change interfaces with spare parts commonality exceeding 80%. Annual maintenance costs are reduced by 40%~60%, saving millions in lifecycle operating expenses — truly "invest once, benefit long-term."

Energy Efficiency Leader

Our entire series comes standard with IE5 permanent magnet synchronous motors + energy feedback VFD drives, achieving 25%~35% comprehensive energy savings. Single-motor operation under light loads and adaptive speed control reduce electrical waste by over 30%. High-strength steel lightweight design cuts deadweight by 15%~20%, lowering workshop load requirements. A single ladle crane station saves over RMB 150,000 in electricity costs annually, helping customers achieve green and low-carbon production.

Ultimate Safety Redundancy Design

Our hoisting mechanism comes standard with dual brakes + mechanical overspeed switch + triple limit switches, featuring multiple redundant interlocks to prevent load dropping and over-traveling. Large products use box girder torsion-resistant structures, remaining stable even in level 8 gusty winds. Optional intelligent safety monitoring systems detect anomalies in load, skew, wind speed, etc., with automatic alarms and shutdowns. Overall safety redundancy coefficient > 2.0, maintaining zero crane safety incidents for many consecutive years.

Deep Customization & Full Lifecycle Service

We provide complete front-end support from site survey and mechanical simulation to civil review, delivering custom drawings within 2 weeks, with non-standard lead times only 5~7 days longer than standard products. We establish lifelong digital dossiers for customers, warning of end-of-life components 3 months in advance. Our full lifecycle services cover installation training, regular inspections, and remote O&M. With customer repeat purchase rates exceeding 85% for five consecutive years, we are a trustworthy long-term partner.