Tower Cranes
1. Freestanding height: 90.8m; Travelling height: 86.66m
2. Jib length: 70m/60m/50m/40m
3. Max. load: 50t
4. Tip load: 9.1t
5. Radius:5.7-70m
6. Mast section: 4.0*4.0*5.78m
7. Anchorage height:125.48m/165.94m/206.4m/246.86m
8. Type: Stationary, travelling, other types you need
| QTZ900B topkit tower crane Technical Parameter | |||||||
| Jib length | 70m | ||||||
| Mast Section | 4.0*4.0*5.78m | ||||||
| Max. Hoisting Weight(t) | 50 t | ||||||
| Mechanisms | 2 falls | 4 falls | Drum capacity | Motor | |||
| Hoisting | m/min | 23 | 46 | 11.5 | 23 | 600m | 110KW |
| t | 25 | 12.5 | 50 | 25 | |||
| Trolleying | m/min | 0-50 | 24KW | ||||
| Slewing | r/min | 0-0.55 | 2*18.4KW | ||||
| r/min | 0-0.55 | 4*155Nm | |||||
| Travelling | m/min | 0-17 | 8*1.7/3.4KW | ||||
| Power Supply | 380v 50Hz/440v 60Hz 200KVA | ||||||
Load diagram
| Jib(m) | Fall | R(Cmax)m | C(max)t | 30 | 40 | 50 | 65 | 70 |
| 70 | IV | 19.9 | 50.0 | 30.2 | 21.7 | 15.8 | 11.9 | 9.1 |
| II | 35.9 | 25.0 | 25.0 | 21.7 | 15.8 | 11.9 | 9.1 | |
| 60 | IV | 21.1 | 50.0 | 32.6 | 23.5 | 17.3 | 13.1 | |
| II | 38.1 | 25.0 | 25.0 | 23.5 | 17.3 | 13.1 | ||
| 50 | IV | 21.1 | 50.0 | 32.6 | 23.5 | 17.3 | ||
| II | 38.1 | 25.0 | 25.0 | 23.5 | 17.3 | |||
| 40 | IV | 21.1 | 50.0 | 32.6 | 23.5 | |||
| II | 38.1 | 25.0 | 25.0 | 23.5 |
Counter-jib ballast
| Boom length | Loading weight | Anchorages(m) | Mast section and collar ties |
| 70m | 11t | 90.8m(Free standing height) | 14 sets |
| 60m | 15t | 125.48m | 6 sets of mast section,1 unit collar tie |
| 50m | 18.3t | 165.94m | 13 sets of mast section, 3 uints collar ties |
| 40m | 24t | 206.4m | 20 sets of mast sections, 4 units of collar ties |
| 246.86m | 27 sets of mast sections, 6 sets of collar ties |
We offer kinds of topkit tower cranes:
1.2T: QTG20(TC3065,3558),QTZ20(TC3065,3558)
2.3T: QTZ31.5(TC3808,4207,4208)
3.4T: QTZ40(TC4208,4708,4808)
4.5T: QTZ50(TC5010),QTZ80-M(TC5013)
5.6T: QTZ63(TC5211,5510),QTZ80G6(TC5013,5513)
6.8T: QTZ80G8(TC5513,5015,5512,5017,6010),QTZ125(TC6018,6313)
7.10T: QTZ125(TC6015),QTZ160(TC6516),QTZ140H10(H25/14,TC6014),QTZ145F10(F0/23B)
8.12T: QTZ250H12(H3/36B),K30/30(TC7030)
9.14T: QTZ250K14(K35/32,TC7032)
10.16T: QTZ260BK16(TC7026,K40/26)
11.20T: S450K20(TC7050,K50/50)
12.25T: QTZ400L25(TC7540)
13.32T: QTZ900A
14.50T: QTZ900B
Pre-sales Services
1.We offer customers free catalogs of our products and other relevant files.
2. We also provide free shuttle as well as board and lodging (four-star hotel) for customers who come to visit our company.
After-sales Services
1.The construction equipment we offer enjoys one-year guarantee period..
2. We supply free quick-wear parts.
3. Double hot lines for 24-hour after-sales services.
4. Online after-sales service is available as well.
5. The technical documents will be attached with the equipment while leaving the factory.
6. If needed, we will send one technician to the site to provide guidance on installation and debugging as well as the training of operators.
7.We can provide on-site service in some countries and areas where we have overseas office or agents.
In addition, OEM service is available.
Please contact us if you want to know more about us.
