QTZ250(7030)---Reliable Quality Self Rising12t QTZ250(7030) Effective Tower Crane
1. New condition 12t tower crane---12t max load, 70m working radius with tip load 3.0t.
2. 12t big Capacity tower crane/hydraulic lifting tower crane/hammed head topkit construction tower crane
3. China-made high quality tower crane new, China good tower crane manufacturers with best price
4. high efficiency, CE, ISO, GOST certificates, oversea service available
Capacity introduction of QTZ250(TC7030)Tower Crane
1. The main stressed steel parts of QTZ160 tower crane use Q345B Mn steel, the tower body mast section 2m*2m*3m, using on-chip-type, the same as POTAIN mast section.
2. Light weight, air resistence is small, convenient transportation. Rotation adopts double rotary organization. Lifting nechanism is driven by frequency converted motor, running steady.
Main Technical Parameters of QTZ250(TC7030) Tower Crane
|
Basic height
|
50m
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Maximum height
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180m
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Jib length
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70m
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Maximum lifting weight
|
12t
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Main chord
|
angle steel 200*200*24(mm)
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Festival standard specifications
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2*2*3(m)
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Main supply
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380V/50Hz (or can be adjusted to your local voltage)
|
Necessary electric power(total power)
|
180Kw
|
Mechanism Specification of QTZ250(TC7030) new condition 12t Tower Crane
| Hoisting
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Fall
|
a=2
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a=4
|
| Speed
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m/min
|
0-30
|
0-60
|
0-15
|
0-30
|
| t
|
6
|
3
|
12
|
6
|
| slewing
|
Slewing speed
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m/min
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0-0.7
|
| Derricking
|
Derricking speed
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m/min
|
0-65
|
| Power total
|
|
Kw
|
180
|
The process features
1): automatic submerged arcwelding is adopted in the main section limbs and chord boom. It has highthermal efficiency, high penetration, high production efficiency, whilereducing the pores and crack defects, increases the weld strength and thebeautiful appearance.
2): we adopt carbon dioxide gaswelding; it has heat concentrated, a small welding line, high strength andresistance to rust and crack. it can reduce tress and deformation, it has highstrength and resistance to rust and crack.
3): shot blasting is used formasts to strength the hardness of steel surface; enhance the paint adhesion andprolonging its life
4): we have robot-weldingproduction lines, so the welding quality has reached international advancedlevel.
The advantages of the tower crane
1): high quality, highefficiency and high safety
2): high rigidness, resistantto corrosion and rust.
3): 20 years manufacturing andexporting experience
4): exports to 30 countries andregions
5): large lifting moment, largeloading capacity, long jib length
6): small energy consumption
Service (optional)
the seller send 2 technicians (one electrician and one mechanic) to the buyer for technical assistanceincluding supervising installation, commissioning, testing and training workersof the buyer, maintenance and dismantlement of seller’s products.
