case history hydraulic gantries
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Gefran Inc. 8 Low ell Ave Winchester, MA 1-888-888-4474 w w w .gefran.com North America 01890 [email protected]
GEFRAN SOLUTIONS FOR HYDRAULIC GANTRIES APPLICATIONS
When traditional cranes and permanent overhead structures can’t be used, hydraulic gantries are a very efficient way to lift and position heavy loads. They can be used in combination with rail systems: in this case, they also allow to move and place heavy loads safely. Hydraulic gantry systems can have a capacity of over 1,200 tons and lift loads at heights over 40 feet. Designed to offer high performance in term of stability and safety, usually they are totally independent systems, with their own hydraulic circuit and self-propelled rail system. When the hydraulic gantry is composed by multiple units, synchronization systems between the units can be requested in order to monitor the lift position and the load and then automatically correct the movement of each unit.
Sometimes, a more flexible solution can be requested, especially when the system needs to meet different requirements, depending on the project. Self-erecting tower lift systems allow to build a free standing gantry with high lifting capability from ground level, by using standard modular components. The header beam system is usually installed at ground level using two rough terrain cranes. Then, it is erected to height by a push up system. As the system pushes simultaneously on two sides, the synchronization is again very important in the whole process.
Gefran Inc. 8 Low ell Ave Winchester, MA 1-888-888-4474 w w w .gefran.com North America 01890 [email protected]
Big heavy lift systems obtained by the combination of self-erecting towers with standard hydraulic gantries can easily provide over 2,400 ton by 80 meter lift solutions to applications that require a flexibility level that can’t be obtained by using permanent structures. Rod-style magnetostrictive linear sensors, permanently mounted inside the hydraulic cylinders, allow to read the cylinder’s position, providing an accurate feedback for a safe synchronization between the different units. Gefran produces an entire range of linear magnetostrictive transducers with different option to fit every application.
The IK4 series is available with a threaded head for the partial installation inside the cylinder in order to make the installation and the maintenance easier and faster. High-end performance in terms of accuracy and robustness is completed by a wide selection of different options, including the cable output that guarantees the best protection against any external agent.