Magnet Double Girder Overehad Crane

Authentication mark:

This crane is mainly used in power generation, port and bulk cargo terminals, and mining and metallurgy.

Capacity:

40 ton

Lifting Height:

16 m

Span:

22.5~34.5 m

Voltage/Hertz:

380V/50HZ, three-phase (As you local condition)

Working Class:

A6-A7

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Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

The single girder bridge grab crane consists of a single main girder, end carriages, a hoist mechanism equipped with an automatic grab, and an electrical control system. The grab opens and closes automatically, allowing efficient grabbing, unloading, and stacking of bulk materials such as coal, ore, grain, cement clinker, and waste. With a compact structure, low headroom design, and typical lifting capacity from 1 to 20 tons, this crane is an economical and efficient solution for light to medium bulk material handling.

APPLICATION SCENARIO

[1] Power Plants – Grabbing and feeding coal to boilers; handling bottom ash and biomass fuel.

[2] Ports and Freight Terminals – Loading and unloading bulk cargo such as coal, grain, ore, and fertilizers from ships or trucks.

[3] Mines and Steel Mills – Handling ore, mineral powder, coke, scrap steel, and slag in harsh environments.

[4] Cement and Building Materials Plants – Moving limestone, clay, clinker, and aggregates for production lines.

[5] Grain Depots and Food Processing – Grain intake, silo turnover, and raw material stacking in flour mills and feed plants.

ADVANTAGES

[1] High Efficiency for Bulk Materials – Automatic grab operation eliminates manual shoveling, greatly improving handling speed.

[2] Compact and Low Headroom – Single girder design reduces crane height, suitable for workshops with limited space.

[3] Light Self-weight & Energy Saving – Lower dead weight reduces building load and power consumption.

[4] Flexible Grab Options – Shell grab for fine materials, motor grab for large lumps, and custom grabs for special applications.

[5] Easy Maintenance – Simple structure and modular components allow quick inspection and low failure rate.

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.