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          Tower Crane

          Home » Products » Tower Crane » QTZ40 Tower Crane
          Tower Crane

          QTZ40 tower crane adopts travel trolley, top-slewing, 2-point jib, and hydraulic jacking system for adding sections.

          As the tower crane is equipped with mechanical moment limiter, lifting load limiter, multi-function position limiter and other protection devices which are precise, reliable and agile, customers can feel secure in using it.

          Because our tower crane is aesthetically pleasing, easy to operate, convenient to install and dismantle, it becomes the ideal vertical and horizontal transportation equipment for large, medium and small construction companies. Typically, it is used in hilly areas, medium and small cities for the construction of tall buildings. It is also widely used at the construction sites of large cities for the movement of materials.

          (A)Lifting Performance
          Four Multiplying Power

          Range m 3-10.96 11 12 13 14 15 16
          Lifting weight t 4 3.986 3.638 3.343 3.09 2.87 2.68
          Range m 17 18 19 20 21 22 23
          Lifting weight t 2.51 20.36 2.23 2.106 1.996 1.897 1.806
          Range m 24 25 26 27 28 29 30
          Lifting weight t 1.723 1.646 1.576 1.510 1.449 1.393 1.34
          Range m 31 32 33 34 35 36 37
          Lifting weight t 1.29 1.24 1.200 1.159 1.121 1.084 1.050
          Range m 38 39 40 41 42 43 44
          Lifting weight t 1.017 0.986 0.957 0.929 0.902 0.877 0.852
          Range m 45 46 46.8
          Lifting weight t 0.829 0.807 0.790
          Range m 3-20.97 21 22 23 24 25 26
          Lifting weight t 2 1.996 1.897 1.806 1.723 1.646 1.576
          Range m 27 28 29 30 31 32 33
          Lifting weight t 1.510 1.449 1.393 1.34 1.29 1.24 1.200
          Range m 34 35 36 37 38 39 40
          Lifting weight t 1.159 1.121 1.084 1.050 1.017 0.986 0.957
          Range m 41 42 43 44 45 46 46.8
          Lifting weight t 0.929 0.902 0.877 0.852 0.829 0.807 0.790

          (B)Lifting Performance Curve Diagram

          QTZ40 Tower Crane Torque Curve (2 Multiplying Power)

          QTZ40 Tower Crane Torque Curve(4 Multiplying Power)

          QTZ40 Tower Crane Technical Parameters

          Item Unit Multiplying power
          α=2 α=4
          Rated lifting torque KN.m 400
          Max lifting weight t 2 4
          Working range M 3 – 46.8(40.8)
          Lifting weight at max range t 0.79
          Range of max lifting weight m 20.97 10.96
          Lifting height Stationary m 30.1
          Attached 120 60
          Whole machine shape size Underbed M 6.0×6.0
          Whole machine's height Stationary 38.98
          Attached 128.92
          End of lifting arm to slewing center 48(42)
          Tail of balance arm to slewing center 12.816
          Whole machine dead weight Stationary T 19.195
          Attached t 40.461
          Balance weight t 7(6.5)
          Else Motor total power kW 21.7
          Max installation height working wind scale scale ≤4
          Permitted working temperature 0C -20~40

          Fittings List

          Mechanism loadability Lifting mechanism JC 40%
          Slewing mechanism JC 40%
          Luffing mechanism JC 40%
          Lifting mechanism Electric motor Model YZP180M-4
          Rotating speed r/min 1460(50HZ)
          Power kW 22
          Speed reducer Center distance mm 460
          Transmission ratio i 32.82
          Rope layers layer 4
          Rope capacity m 280
          Brake Model YWZ3-200/25
          Steel rope Traction force N 10000
          Specification 35W×7-12
          Frequency HZ 15HZ 30HZ 45HZ 60HZ
          Lifting weight(4times) 4T 4T 4T 1.6T
          Lifting speed m/min 4.25 8.5 15.9 32.6
          Total weight t 1.2
          Slewing mechanism Electric motor Model YZR132M2-6
          Rotating speed r/min 900
          Power kW 3.7
          Speed reducer Model XLE-100·147
          Transmission ratio i 147
          Output torque N·m 10000
          Slewing bearing Model, tooth number HSW.30.1220 Z=38
          Small gear Modulus m 10
          Tooth number z 13
          Modification coefficient x +0.5
          Hydraulic coupler Model YOX250A
          Slewing speed r/min 0-0.62
          Installed quantity Unit 1
          Luffing mechanism Electric motor Model YD100L2-4/6
          Rotating speed r/min 1440 960
          Power kW 2.8 2.2
          Speed reducer Model WCJ120
          Transmission ratio 39
          Steel rope Specification 6×19-7.7-1550
          Line speed m/min 38.6/25.2
          Luffing speed m/min 38.6/25.2
          Hydraulic jacking system Hydraulic pump station Working pressure MPa 20
          Power kW 4
          Oil pump model GB306
          Jacking oil cylinder Rated pressure MPa 20
          Cylinder diameter mm Φ125
          Pole diameter mm Φ90
          Stroke mm 1300
          Installation distance mm 1700
          Telescoping speed m/min 0.4
          Max jacking force t 24.6

          Shangdong Yongli Group is an experienced tower crane manufacturer in China. Our company is primarily engaged in the production and sales of trailer concrete pump, inner climbing tower crane, concrete mixer, wheel loader, and other related products.

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