Topless Tower Crane QTZ125

Topless tower crane QTZ125 Topless tower crane QTZ125  falls within upper-swing hydraulic climbing tower crane,which is operated by computer from related the steel structure a element to mechanisms and conventional design operations. And the max radius is 3-60m,freestanding height is 50m,attaching height is 200m,the rated load moment is 1250KN.m,tip capacity is 1.5t. Our standard section is 2.0m*2.0m*3.0m, main material: 200*200*20 maganese steel, hoisting mechanism adpots three-speed motor,having three kinds of working speed meets different demands! Topless tower crane QTZ125  parameter table                              Tower crane technical parameters Grade U5 Wind grade at the max. installation height when assembly, disassembly, hoisting or declining ≤4 Load state  Q2 Wind grade with working state ≤6 Working grade  A5 Wind grade without working state ≤11 Height (m) Freestanding type:60  Attaching type: 200 Max. load capacity(t) Quadruple rate 10  Double rate        5   Radius(m) Max. radius                    60 Min. radius                    2.8 Rated load capacity at max. radius(t)                          1.5 Hoisting mechanism     Speed (m/min)       a=2   0-100/0-50       a=4   0-50/0-25 Motor type and power       70RCS25     51.5KW Slewing mechanism Slewing speed Motor type           Power 0.62r/min       YLEW112M3-6-B5           95N.m Derricking mechanism                120JXL              120N.m              Single wire rope speed: 0-63m/min Climbing mechanism Speed Rated working pressure    Power 0.5m/min        25MPa    7.5KW Counter weight Jib length(m)  60  55    50    45   40 Weight(t)  16.6  15.3    14.0   12.7   11.4 Total power 53KW(not include illumination, heating) Power supply ~380V(±10%) Frequency 50Hz Working temperture -20℃~40℃    Load Diagram:    Jib (m) Fall R(Cmax) m C(max) t 20 25 30 35 40 45 50 55 60 60 IV 14.6 10.0 6.99 5.35 4.25 3.46 2.87 2.42 2.05 1.75 1.50 II 26.37 5.0 5.0 5.00 4.25 3.46 2.87 2.42 2.05 1.75 1.50 55 IV 15.3 10.0 7.41 5.70 4.52 3.70 3.08 2.60 2.21 1.90   II 27.70 5.0 5.0 5.00 4.52 3.70 3.08 2.60 2.21 1.90   50 IV 15.7 10.0 7.62 5.85 4.66 3.82 3.19 2.69 2.30     II 28.38 5.0 5.0 5.00 4.66 3.82 3.19 2.69 2.30     45 IV 16.5 10.0 8.08 6.23 4.97 4.09 3.42 2.90       II 29.87 5.0 5.0 5.00 4.97 4.09 3.42 2.90       40 IV 17.2 10.0 8.45 6.52 5.22 4.30 3.60         II 31.03 5.0 5.0 5.00 5.0 4.30 3.60           Advantage:  1. AC contactor,thermprl protector adopt Schneider which is high quality product,stable and reliable in performance 2. The mechanisms adopt the product the products of professional manufacturer,stable and reliable in operation. 3. The first domestic robot welding production line has achieved the main welding quality and reached the international advanced level. 4. Steel structure parts all achieve impeller blasting,improve the surface hardness of steel,enhance the coating adhension,extend equipment useful life. 5.  Mast sections adopt split structure, convenient for transportation and storage, save the long distance freight 6. The main chord of mast section adopts Q345B material, fine adaptability to environment 7. The mechanism adopt foreign advanced technical products, reliable in performance 8. High working speed and efficiency, great speed-adjustment performance, and stable running