QTZ125 (60158) tower crane is a mediumsized flattop tower crane, which is widely used in construction scenarios such as highrise buildings, bridges, and power construction. The following is a detailed introduction to its key parameters and features:

Main technical parameters

1. Lifting performance
Maximum lifting weight: 8 tons (usually at the arm root section)
Boom end load: 1.5 tons (60m arm end)
Lifting torque: 1250 kN·m
Luffing speed: 2060 m/min (frequency conversion)

2. Working range
Boom length combination: 60 meters (can be shortened to 50/40/30 meters according to demand)
Independent height: about 40.5 meters (when not attached)
Attached height: up to 200 meters or more (by adding standard sections and attachment)

3. Mechanism configuration
Lifting mechanism: multispeed motor or frequency conversion control, rope capacity of about 400 meters.
Slewing mechanism: planetary gear reducer, slewing speed 00.6 r/min.
Luffing mechanism: trolleytype luffing, variable frequency stepless speed regulation.

4. Electrical system
PLC control is adopted, with safety protection functions such as overload, limit, wind speed alarm, etc.

Structural features

1. Standard section of tower body
Three sizes of crosssection size: 1.6m*1.6m*2.8m, 1.8m×1.8m*2.8m, and 1.6m*1.6m*3m

2. Flat head design
No tower top structure, easy to disassemble and assemble, suitable for group tower operations and narrow sites.

3. Attachment device
An attachment needs to be set every 2530 meters to enhance stability.

Application scenarios

Highrise buildings: 60meter arm length covers a large construction area.
Bridge engineering: hoisting prefabricated beams, formwork, etc.
Industrial construction: installation of heavy components in power plants and petrochemical projects.

Safety configuration

Torque limiter, weight limiter, amplitude limiter, anemometer, anticollision system (optional).

Advantages

Efficient and flexible: flat head design reduces component interference and is suitable for intensive construction.
Energysaving and stable: frequency conversion control reduces impact and extends the life of the structure.

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