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※ Derricking gear of tower crane: TXB-300A type
 
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Derricking gear of tower crane: TXB-300A type
Introduction：
I performance
Derricking gear is drive device to finish level function of loading dolly of tower crane, it is divided into gear worm speed reducer and planet-gear drive speed reducer. Gear worm speed reducer has simple and close structure, can be installed at the end of gib arm of tower crane with reasonable price, economical and practical performance. Planet-gear drive speed reducer adopts planet drive principle with close structure, small volume, light weight, low noise, stable running and long service life.

II Principle Specs and Technical Parameter
Performance parameter/Model
TXB-300A
Motor
Model
YDEJ100L2-4/6
Rotate Speed (r/min)
1440
940
Power
2.2
1.5
Brake Moment (N.m)
30
Speed Reducer
Model
TXB-300A
Speed Radio
43
Drum
Diameter (mm)
310
Diameter of rim (mm)
340
Length of Rope Roll (mm)
340
380
Cope Capacity (m)
46
52
Rope pitch (mm)
7
Overall Dimension
Length (mm)
430
470
Width (mm)
310
Height (mm)
480
Height of center (mm)
265
Space between brackets (mm)
412
452

III Structure of Machinery and Installed Dimension
Cope Capacity (m)
L1
L2
L3
46
340
412
430
52
380
452
470
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