Crane tasks with unique requirements demand custom solutions throughout the design and implementation processes. The engineers at GD Gép és Daru Kft. have frequently encountered challenges that extend beyond the capabilities of standard crane systems. Our experience and engineering expertise gained from such projects have contributed to the creation of custom-designed, high-technical-standard lifting equipment.

Crane System Installed in a Cleanroom Environment

For the crane requirements of an injection molding plant manufacturing healthcare products, the goal was to install lifting equipment that complies with the specifications for a Class 8 cleanroom environment according to EN ISO 14644-1 standard.

During the construction phase, special attention had to be paid to contamination prevention. The crane structures were protected with foil covering until the completion of installation. During the design of the cranes and crane runways, a fundamental requirement was that the equipment:

does not shed particles,
does not leak lubricant,
does not create gaps or openings where dust or contamination could accumulate.

Easy cleanability was an important consideration in determining the design. During structural design, we aimed for smooth, continuous surfaces, and the coating system used is resistant to various chemical cleaning agents. The surfaces of the equipment received a white paint finish, which harmonizes with the visual and hygienic requirements of the cleanroom environment – the crane becomes almost invisible in the background, with only the colored fittings highlighting it.

Specially Designed Overhead Cranes and Telescopic Rack-Serving Crane

In an industrial facility in Eastern Hungary, a crane system had to be designed that flexibly adapts to the building's characteristics while ensuring high lifting height and safe material handling in a confined space.

During installation, two 3.2-ton overhead cranes were placed on a shared crane runway, and a custom-designed telescopic rack-serving crane with fork suspension was also integrated.

The structural design of the overhead cranes was adapted to the on-site conditions: their main girders were raised with short spacers to maximize the available lifting height.

However, the unique feature of the system is the rack-serving crane, specifically designed for handling 4–6 meter long bar materials. The equipment can retrieve or store material bundles from a multi-row, comb-type racking system. Four reversible forks mounted on the lifting beam allow access to any shelf of the racking. The movement of the forks is guided by a four-section telescopic mast suspended from the hoist trolley, which ensures rigid control and a large vertical range of motion. Thanks to this, the crane can even travel above the rack rows.

The crane control features advanced sensors that:

recognize the aisles between the rack rows,
monitor the position and direction of movement of the forks,
detect the levels of the racking system.

The system automatically prohibits operations that could cause collision between the fork and the shelf. Movements requiring precise positioning can only be performed at fine speeds, ensuring accident-free operation. The crane's design allows for efficient storage and retrieval of materials even within a smaller footprint racking system.

Summary

GD Gép és Daru Kft.'s custom-engineered crane systems provide solutions for industrial environments where standard cranes are not suitable. Whether it's cleanroom requirements, challenges posed by limited space, or material handling demanding high precision, our company provides tailored lifting technology solutions with an engineering mindset and practical experience.

Custom-Engineered Cranes from GD Gép és Daru Kft.