Single girder heavy-duty gantry crane

Authentication mark:

This crane is mainly used in steel service centers, heavy equipment assembly yards, and precast concrete factories.

Capacity:

32/5ton, 50/10ton

Lifting Height:

12m

Span:

18~35m

Voltage/Hertz:

3Ph 380V 50hz

Working Class:

Get A Free Quote

Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

The single girder heavy-duty gantry crane features a single main beam, two sturdy legs, end carriages, and a powerful hoist mechanism capable of handling loads typically from 10t to 50t. Despite the single girder design, reinforced box-section beams and heavy-duty components allow it to withstand high stress and frequent operation. The crane runs on ground rails and is ideal for outdoor yards or workshops where a double girder is not necessary but heavy lifting is required. Spans can reach up to 30m with duty class A5‑A7.

APPLICATION SCENARIO

[1] Steel Service Centers – Lifting steel coils, plates, and bars for storage and shipment. [2] Heavy Equipment Assembly Yards – Moving large components such as transformer bodies, mining equipment parts, or wind turbine sections. [3] Precast Concrete Factories – Hoisting concrete beams, pipes, and heavy molds. [4] Railway Maintenance Depots – Lifting locomotive bodies, wheelsets, and heavy spare parts. [5] Port Auxiliary Areas – Handling heavy cargo containers or machinery on secondary wharves.

ADVANTAGES

[1] High Load Capacity in Single Girder – Reinforced design allows heavy lifting (10‑50t) with lower cost than double girder. [2] Cost-Effective for Medium Spans – Ideal for spans up to 30m where double girder would be over‑specified. [3] Durable and Reliable – Heavy‑duty wheels, sealed bearings, and robust structure for tough environments. [4] Easier Maintenance – Single beam provides good access to hoist and trolley components. [5] Flexible Power Options – Available with pendant, radio remote, or cabin control.

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.