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QTZ8050-32 derrick is a large-scale up-rotation jack-up Derrick developed and manufactured by our company. The new design of the machine, the tower body for the structure of Tenon Rod, easy assembly and disassembly, convenient transportation. The hoisting and amplitude changing adopts the frequency conversion speed regulation, the operation is stable, the impact is small; the rotation adopts the unique HVV voltage regulation speed regulation slewing mechanism of Zhonglian, adopts the normally closed brake, the closed loop control, may hit the reverse car, the position is quick and accurate; the Intelligent Eddy current control, the starting and braking are stable, second to none at home or abroad. 1, the lifting mechanism, luffing mechanism using advanced frequency conversion stepless speed regulation scheme, the work is more stable and reliable; using HVV rotary mechanism, the rotation can hit the reverse car, the position is more accurate; 2, the use of bar-type Standard Section, external lifting, 3, tower crane independent height of 73 meters, attached above the hanging height of high, excellent lifting performance; 4, Rigid Double Pull Rod suspension large lifting arm, lifting arm stiffness, light weight, small section, small wind resistance, beautiful appearance, there are several changes in length to meet the needs of different construction; 5, the driver’s cab is independently outside, with a good view and large internal space, creating a good working environment for the operator; 6, the use of advanced linkage platform to operate the various institutions, easy to operate and simple to maintain; All kinds of safety devices, mechanical or mechatronics engineering products, suitable for harsh construction environment, to ensure the tower crane reliable work.