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About:Level luffing crane

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A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing. Level-luffing is most important when careful movement of a load near ground level is required, such as in construction or shipbuilding. This partially explains the popularity of fixed horizontal jibs in these fields.

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  • A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing. Level-luffing is most important when careful movement of a load near ground level is required, such as in construction or shipbuilding. This partially explains the popularity of fixed horizontal jibs in these fields. (en)
  • Una grúa de brazo nivelado se caracteriza porque es capaz de desplazar longitudinalmente la carga suspendida (es decir, hacia atrás o hacia adelante) mientras el gancho de suspensión se mantiene a una altura fija de forma automática.​ Normalmente esta denominación sólo se aplica a aquellas grúas que disponen de un mecanismo adicional específico para mantener el nivel del gancho cuando el brazo de la grúa bascula, acortando o alargando su longitud de trabajo efectiva. Mantener la carga suspendida a un nivel fijo es especialmente importante cuando es necesario desplazar con precisión cargas próximas al suelo o a plataformas horizontales (como en edificación o en construcción naval). Esto explica parcialmente la gran difusión de las grúas de brazo horizontal fijo (grúa torre) para estos usos. (es)
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  • A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing. Level-luffing is most important when careful movement of a load near ground level is required, such as in construction or shipbuilding. This partially explains the popularity of fixed horizontal jibs in these fields. (en)
  • Una grúa de brazo nivelado se caracteriza porque es capaz de desplazar longitudinalmente la carga suspendida (es decir, hacia atrás o hacia adelante) mientras el gancho de suspensión se mantiene a una altura fija de forma automática.​ Normalmente esta denominación sólo se aplica a aquellas grúas que disponen de un mecanismo adicional específico para mantener el nivel del gancho cuando el brazo de la grúa bascula, acortando o alargando su longitud de trabajo efectiva. (es)
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  • Grúa de brazo nivelado (es)
  • Level luffing crane (en)
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