QTZ125 (60178T) tower crane is a mediumtolarge tower crane widely used in highrise building construction. It has the characteristics of strong lifting performance, wide coverage and high stability. The following is a brief introduction to its core parameters and features:

Main technical parameters

1. Model analysis
QTZ125: Indicates the tower crane model (Qcrane, Ttower, Zselfelevating, 125maximum arm tip load torque 1250kN·m).
6017: 60 meters maximum arm length, maximum load of 1.7 tons at the arm end (60 meters).
8 tons: maximum rated lifting capacity (usually within the range of 2~20 meters).

2. Lifting performance
Maximum lifting capacity: 8 tons (within the short arm range).
Boom end load: 1.7 tons (at the 60meter arm end).
Working range: 2~60 meters (the arm length combination can be adjusted according to needs).

3. Height parameters
Independent height: about 40/51 meters (no attachment required).
Attached height: up to 200 meters or more (by adding standard sections and attachment devices).

4. Speed ​​parameters
Hoisting speed: 0~100m/min (variable frequency speed regulation, changes with load).
Rotation speed: 0~0.6r/min (smooth stepless speed change).
Luffing speed: 20~40m/min (trolley traction).

5. Motor power
Hoisting motor: 55kW (large rope capacity, suitable for highrise hoisting).
Rotation motor: 5.5kW×2 (dual motor drive, good wind resistance).
Luffing motor: 5.5kW (trolley runs smoothly).

Structural features

1. Tower structure
Adopting 1.8m×1.8*2m or 1.6m×1.6*3m square tube/angle steel standard section, modular design is easy to disassemble and assemble.

2. Lifting arm
Triangular crosssection truss arm, segmented pin connection, can be combined into a variety of arm lengths (such as 35m/40m/45m/50m/55m/60m).

3. Balance arm
Adjustable counterweight (usually about 15 tons), balance torque optimization.

Application scenarios

Highrise buildings: residential, commercial complexes, bridges and other construction.
Working condition adaptation: suitable for dense construction sites, large coverage, flexible lifting.
Safety configuration: standard torque limiter, weight limiter, amplitude limiter, etc., in line with GB/T5031 standard.

Advantages

Efficient operation: frequency conversion control, stable lifting/rotation, precise lifting.
Economical efficiency: 1.8 tons of lifting load can be maintained at a 60meter arm length, reducing the frequency of machine relocation.
Reliability: Key components (such as reducers and wire ropes) use branded accessories with low failure rate.

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