20 Ton Single Girder Gantry Crane for Use in Cambodia

Sommario Spettacolo

Panoramica del progetto

This case study presents the customized 20-ton single girder gantry crane successfully delivered and commissioned for an outdoor industrial project in Cambodia. The client is a local comprehensive industrial enterprise focusing on steel structure processing, mechanical equipment stacking, and outdoor cargo transshipment. Faced with the local tropical monsoon climate, frequent high temperature, seasonal rainstorms, and strong outdoor wind conditions, the client urgently needed a stable, durevole, and all-weather heavy-duty lifting equipment to replace the original outdated handling machinery, so as to improve the efficiency of outdoor material loading, scarico, and turnover operations. After strict comparison of multiple crane solutions, our customized outdoor-type 20 ton single girder gantry crane was finally selected to meet the long-term high-frequency outdoor operation needs of the project.

20 Ton Single Girder Gantry Crane for Use in Cambodia

On-Site Challenges & Customized Requirements

The project site is an open-air outdoor yard in Cambodia with no overhead shelter, bringing multiple harsh operating challenges to the lifting equipment. Primo, the local tropical climate features long-term high temperature, elevata umidità, and seasonal heavy rainfall, which easily causes rust, corrosione, and electrical circuit failure of conventional cranes, seriously affecting service life and operational safety. Secondo, the open outdoor environment is accompanied by frequent strong winds, requiring the crane to have reliable wind resistance and anti-slip performance to avoid equipment shaking or displacement during operation and parking. Third, the client’s daily operation involves frequent lifting of steel raw materials, mechanical components, and finished structural parts, with unstable load positions and continuous working hours, putting forward high requirements on the stability, load-bearing capacity, and continuous working performance of the crane. Inoltre, the outdoor yard has a limited foundation construction range, so the crane needs to adopt a lightweight and reasonable structural design to reduce foundation load while ensuring heavy-load performance.

Main Technical Parameter List

The following is the complete and standardized technical parameter list of the 20-ton single girder outdoor gantry crane customized for the Cambodia project, covering core performance, structural dimensions and environmental adaptation parameters:

◆ Capacità di sollevamento nominale: 20 Tonnellata
◆ Working Class: A5 (ISO M5), suitable for frequent cyclic outdoor operation
◆ Standard Span: 12M
◆ Maximum Lifting Height: 9M
◆ Velocità di sollevamento: 0.3–8m/min (regolabile, balancing efficiency and stability)
◆ Crane Traveling Speed: 20m/mio
◆ Main Material: High-strength Q235B carbon steel, integral box welded structure
◆ Electrical Protection Grade: IP54, fully waterproof, dustproof and sunproof for outdoor use
◆ Operation Mode: Controllo remoto da terra
◆ Environmental Adaptation: Customized multi-layer weather-resistant anti-corrosion coating, equipped with anti-wind rail clamps and automatic braking system, adapting to high temperature, elevata umidità, rainstorm and strong wind outdoor conditions in tropical areas

Core Equipment & Outdoor Adaptive Design

Targeting the harsh outdoor working conditions in Cambodia, this 20-ton single girder gantry crane has been fully optimized and customized in structure, anticorrosione, wind resistance, and electrical sealing, with core parameters and outdoor adaptive designs as follows:

◆ Basic Performance Parameters: Rated lifting capacity of 20 tonnellate, standard span of 12m, maximum lifting height of 9m, working class A5 (ISO M5), suitable for medium and high-frequency outdoor cyclic operations. The lifting speed is 0.3–8m/min, and the traveling speed of the crane is 20m/min, which balances operational efficiency and running stability to meet the client’s daily batch material handling needs.
◆ Outdoor Anti-Corrosion Structure: The main beam, end beams, and support legs are made of high-strength Q235B carbon steel with integral box welded structure, featuring high rigidity and strong deformation resistance. The whole machine adopts multi-layer outdoor special anti-rust and anti-corrosion coating technology, including primer, intermediate paint, and weather-resistant topcoat. The coating can resist ultraviolet radiation, elevata umidità, and rainwater erosion, effectively avoiding metal rust and structural aging in tropical outdoor environments and extending the equipment service life by more than 30% compared with ordinary models.
◆ Professional Wind Resistance & Safety Design: Equipped with customized anti-wind rail clamps and automatic braking devices. When encountering strong winds or in a parked state, the braking system can lock the crane body stably to prevent sliding and shaking. The optimized leg structure enhances overall wind resistance, ensuring safe operation and static placement in open outdoor windy environments. All exposed bolt parts are equipped with anti-rust protective covers to adapt to long-term outdoor exposure.
◆ All-Weather Sealed Electrical System: All electrical components, control boxes, and motor parts adopt fully sealed waterproof and dustproof designs with IP54 protection grade. The independent rainproof and sunshade structure is installed for the electrical control system, which can effectively prevent rainwater infiltration, dust accumulation, and high-temperature sun exposure damage, ensuring stable operation in rainy seasons and high-temperature weather in Cambodia. The equipment supports ground remote control and cab dual operation modes, adapting to different outdoor operation scenarios.
◆ Simple Installation & Low Foundation Requirement: Compared with double girder gantry cranes, the single girder lightweight structure reduces the overall self-weight, lowers the requirements for on-site foundation bearing capacity, and simplifies on-site installation and commissioning procedures. It is perfectly adapted to the open outdoor yard layout of the Cambodian project, saving the client’s infrastructure investment and construction cycle.

Project Implementation & On-Site Operation Effect

Our team completed personalized design, factory pre-installation debugging, standardized packaging and transportation according to the local outdoor working conditions of the Cambodian project. After the equipment arrived at the site, professional engineering technicians were arranged to guide on-site installation, track calibration, load test, and safety debugging, ensuring that all performance indicators fully meet outdoor industrial operation standards. The whole project was completed and put into operation within the scheduled cycle, passing the local safety acceptance smoothly.

After being put into outdoor operation, the crane has shown excellent environmental adaptability and stable working performance. It operates continuously and stably in high-temperature, rainy, and windy outdoor environments without corrosion failure or operational faults. The efficient lifting and horizontal traveling functions greatly improve the turnover efficiency of outdoor steel materials and mechanical equipment. Compared with the previous handling mode, the client’s outdoor material handling efficiency has increased by 40%, and the manual auxiliary operation cost is significantly reduced. Nel frattempo, the perfect safety protection design eliminates potential safety hazards in outdoor heavy-load operation, realizing zero safety accidents since operation.

Riepilogo del progetto & Customer Feedback

This customized 20-ton single girder outdoor gantry crane perfectly solves the pain points of difficult adaptation of conventional lifting equipment to Cambodia’s tropical outdoor harsh environment, fragile anti-corrosion performance, and poor wind resistance stability. With its reliable all-weather working capacity, reasonable structural design, and cost-effective operation, it provides a stable and efficient heavy-duty lifting solution for the client’s outdoor industrial yard.

The client highly recognizes the equipment performance and our professional service. They stated that the crane fully adapts to the local outdoor complex climate, runs stably for a long time, and greatly optimizes the on-site production and operation rhythm. This project also verifies the excellent applicability of our outdoor single girder gantry crane in Southeast Asian tropical high-temperature and high-humidity outdoor working conditions, accumulating rich practical experience for subsequent overseas similar outdoor lifting projects.

Attualmente, the equipment has been in stable outdoor operation for a long time, continuously creating stable economic benefits for the client, and has become a typical successful case of outdoor gantry crane application in Cambodia’s industrial field.