Tower crane
model

QTZ31.5

QTZ40

QTZ63

QTZ80

QTZ125

QTZ31.5
(4207)

QTZ40A
(4708)

QTZ40B
(4807)

QTZ40C
(5008)

QTZ63
(5013)

QTZ63P
(5510)

QTZ80A
(5511)

QTZ80P
(5015)

QTZ125
(6015)

Nominal lifting moment

315

400

630

800

1250

jobs

Amplitude

41.8

47

48

50

55

55

50

60

Lifting capacity

0.64-3

0.8-4

0.7-4

1.3-6

1-6

1.1-8

1.5-8

1.5-8

Lifting height

Detached

27

30

30

39

39

39

39

50

Attached

90

120

120

140

140

140

140

163

Lifting speed

Double rate

54/36/7

70/35/7.5

70/35/7.5

70/35/7.5

75/38/7

75/38/7

60/30/6.5

60/30/6.5

100/50

Quadruple rate

27/18/3.5

35/17.5/3.75

35/17.5/3.75

35/17.5/3.75

37.5/18.5/3.5

37.5/18.5/3.5

30/15/3.2

30/15/3.2

50/25

Swing speed

0-0.72

0-0.7

0-0.7

0-0.7

0-0.64

0-0.64

0-0.6

0-0.6

0-0.6

Luffing speed

30/15

38/19

38/19

38/19

38/19

38/19

38/19

38/19

60/30/5.5

Tower section

1300×1300

1500×1500

1500×1500

1500×1500

1600×1600

1600×1600

1600×1600

1600×1600

2000×2000

1500×1500

Main body
material

∠140×140
×10

∠140×140
×10

∠140×140
×12

∠160×160
×12

∠160×160
×14

∠160×160
×14

∠160×160
×16

∠160×160
×16

135×135
×12

∠140×140
×12

Boom

Upper chord

Seamless steel pipe

Seamless steel pipe

Square tube

Seamless steel pipe

Seamless steel pipe

Square tube

Seamless steel pipe

Square tube

Round bar

Lower chord

Channel steel

Square tube

Square tube

Square tube

Square tube

Square tube

Square tube

Square tube

Square tube