meaning of luffing

... have a fixed jib, luffing tower cranes have an adjustable jib that can be raised or lowered. The key feature of a luffing tower crane is its ability to luff, which means to change the angle of the jib. This allows the crane to work in tight spaces or in

...year warranty. If there is quality problem of any parts (excluding easy worn spare parts) on our side during this period, we will supply a new one by free for replacement Q2: What is the mean of QTD for tower crane model? And please illustrate. A2: QTD is

...Luffing Jib Tower Crane 6tonsTower Crane Lifting Capacity FAQ for QTD2520 Construction Luffing Jib Tower Crane 6tonsTower Crane Lifting Capacity Q1: What is the Warranty for tower cranes? A1: For the tower cranes, we can supply 1 year warranty. If there is quality problem of any parts (excluding easy worn spare parts) on our side during this period, we will supply a new one by free for replacement Q2: What is the mean...

Customizing Fixed Qtz Tower Cranes Qtd Luffing Tower Crane for Construction Tower crane is a fully slewing jib crane with a tower-like structure. It is a common means of transportation in large civil engineering construction sites. It can move construction...

...Luffing angle ° 30-80 Fixed jib length m 9-18 Winch max. single line speed( no load,at 5th layer) m/min 120 Boom luffing gear max. single line speed( at 1th layer) m/min 57 Max. swing speed r/min 2.4 Max. travel speed km/h 1.2 Max. grade-ability % 30 Mean ground pressure MPa 0.087 Engine output power kW ...

.... load moment kN-m -- Main boom length m 13～52 Main boom Luffing angle ° -3～80 Fixed jib length m 7～16 Max. swing speed r/min 2.45/2.2 Max. travel speed km/h 1.37/1.22 Max. grade-ability % 30 Mean ground pressure MPa 0.06 Engine output power kW 128