Double Beam Gantry Crane

Authentication mark:

This crane is mainly used in steel stockyards, port terminals, and precast concrete factories.

Capacity:

20t, 30t, 40t, 50t, 100t, Customizable

Lifting Height:

25 meters

Span:

12-30m

Voltage/Hertz:

3 Phase 380V 50hz

Working Class:

A5-A7

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Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

The double beam gantry crane consists of two main girders, two sturdy legs, end carriages, and a hoist trolley that runs on rails on top of the girders. This robust design provides high rigidity, excellent stability, and large lifting capacity, typically from 10t to 100t+ (up to 500t for special designs). Spans can reach 40 meters or more, with duty class A5‑A8. The crane runs on ground rails and is widely used for outdoor heavy material handling in ports, steel yards, precast concrete plants, and heavy equipment assembly areas where an overhead runway is not available.

APPLICATION SCENARIO

[1] Steel Stockyards – Handling steel coils, plates, pipes, and structural sections.

[2] Port and Container Terminals – Lifting containers, heavy machinery, and bulk cargo.

[3] Precast Concrete Factories – Moving concrete beams, panels, and heavy molds.

[4] Heavy Equipment Assembly Yards – Relocating large components such as transformers, turbines, and mining equipment.

[5] Railway Freight Stations – Loading/unloading heavy goods like rail tracks, wheelsets, and transformers.

ADVANTAGES

[1] High Load Capacity – Double girder design supports loads from 10t up to 500t.

[2] Long Span – Rigid structure easily achieves spans over 40m.

[3] High Duty Cycle – Designed for continuous operation with duty class up to A8.

[4] Smooth and Precise – Dual‑rail trolley and frequency control provide stable travel and accurate positioning.

[5] Durable for Outdoor Use – Corrosion‑resistant coatings and weather‑protected components.

STRUCTURAL DIAGRAM AND PARAMETER TABLE

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.