Add：No.199 Bdiguan West Rd,Wuwei City ,Gansu,PRC
Tel：+86-935-2253077 2253075
Fax：+86-935-2227079
Postal Code：733040
E-mail：zzx@ww212.com
Http：//www.ww212.com
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Model QTZ31.5B tower crane |
Key feature
1. Model QTZ315B tower crane was awarded the Grade Ⅲ Prize for Advance of Science and Technology for Latest Scientific Payoffs by the Ministry of Construction.
2. 40 meters long arm support, single sustained center, variable cross section as well as changing modulus characterize this design which to be originated with our Plant.
3. The new concept of enclosed steps and slip jacking crossbeam is introduced in this design, this radically resolve the safety problem aroused by erecting and dismantling the tower crane.
4. The motion limiter can act accurately, so does the force moment’s and hoisting capacity’s which having high repetition precision.
5. Crane truck was equipped with particular safety device against failures of its shaft and wire rope.
6. Most of its service performances run ahead of the relevant national standard. The overall performance ranks first among the same kind nationwide.
7. As for all structural parts, the employed carbon dioxide welding can ensure them to be well-set and reliable in the quality.
8. The bottom’s framework girder employs monolithic foundation, but for rood beam’s choice, both monolithic foundation and weighting mold are available. |
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Performance parameter
Nominal lifting moment（KN.m） |
315 |
Boom point’s hoisting capacity （kg） |
700 |
Maximum hoisting capacity（kg） |
3000 |
Maximum working range（m） |
40 |
Independent service height（m） |
30.5 |
Supported service height（m） |
80 |
Lifting speed（m/min） |
7/21/43 |
Gyration speed（r/min） |
0.51/0.56 |
Speed in amplitude’s variation（m/min） |
24/37.5 |
Jacking speed（m/min） |
0.5 |
Tower section（m×m） |
1.408×1.408 |
Balancing weight（kg） |
6000 |
Total power（kw） |
24 |
Rear’s gyration radius (m) |
10.09 |
Supporting spacing（bottom-top）(m) |
22/15/15/15 |
Performance list
Range(m) |
0-13.58 |
16 |
19 |
22 |
25 |
28 |
31 |
Nominal hoisting capacity (kg) |
6000 |
4991 |
4112 |
3481 |
3007 |
2637 |
2340 |
Range(m) |
34 |
37 |
40 |
43 |
46 |
50 |
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Nominal hoisting capacity (kg) |
2097 |
1894 |
1722 |
1574 |
1446 |
1300 |
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