China Heavy Crane Qtz7030 Made in China by Hsjj

heavy crane Qtz7030 Made in China by Hsjj
Technical performance parameters for the whole machine
Technical parameters of the tower crane (70m-jib lenght)
Working radius (m) 3~20 22.328 30 35 38 40 Hoisting weight (t) 2 -fall 6.00 4-fall 12.00 12 9.218.497.05 6.38 5.99 Working radius (m) 45 50 53 55 60 63 65 70 Hoisting weight (t) 2-fall 5.33 4.674.344.143.703.46 3.32 3.00 4-fall 5.16 4.504.173.973.533.29 3.15 2.83
Technical performance parameters for the whole machine
Rated hoisting moment (kNm)2500 Working Radius (m)3~70Max hoisting height (m)Outrigger Stationary 54 Anchored174 Max hoisting capacity (t)12 Hoisting Model QP12100 (with draft fan) Fall α=2 α=4 Weight/Speed t/(m/min) 3/100 6/50 6/50 12/25 Power (kW)60 Trolley mechanimsSpeed (m/min) 0~75 Power (kW) 5.5 Slewing mechanismSpeed (r/min) 0~0.6 Power (kW) 2x7.5 climbing (Erecting) mechanism Speed (m/min) 0.46 Power (kW) 7.5 Working Pressure (MPa)31.5 Total power (kW) 80.5 (Except the Erecting Mechanism) Counterweight Max Working Radius (m)45 50 55 60 65 70 Counter-weight(t)19 21 18 19 20 21 Operation Temperature (deg c)-20~+40
Technical parameters of the mechanisms






Hoisting mechanimsmodelunitQP12100Max. Tration of the ropeN35000Wire ropspecification 37*7-18-1870Max. Linear speedM/min200drumDrum speedR/min47.27Rope capacitym400(winding layer-5 layer)motormodel YZBPF280M-8powerkw60speedR/min735 (50hz)Ratio of reduction geras 15.55brakemodel YWZ3-315/90-16Braking moment N.M1800










Trolleying mechanismmodelunitBp55Max. Traction of the ropeN12089Wire ropespecification 6*19-9-3-1770(right-twist)Max. Linear speedM/min75lenght45m jibmWire rope I90Wire rope II5850m jibm1006355m jibm1106860m jibm1207365m jibm1307870m jibm14083Drum speedR/min0~36motormodel YEJ132S-4B5powerkw55speedR/min1440Ratio of reduction gears43Braking moment75





Slewing mechansimmotormodelYTW132M-4B5powerKW7.5sppedR/min1440Reduction gearsmodel Xx5-120.195CAGer ratio 195Output rotation momentN.M10000Gear parameter at output endModulus m 14Number of teeth z 12Profile shift coefficient x +0.5Overall gear ratio195*145/12Slewing speed0~0.6Model of mechanismHPW75.120


Jacking mechanismmotorpowerkw7.5speedR/min1440flowL/min14.5Working pressureMpa31.5Jacking cylinderClyinder/rod diametermm200/140Max. Jacking forcet98.9Jacking speedM/min0.4



Description of QTZ series tower Crane

1) the tower crane is one of the most popular type and hot-selling self-erecting tower crane, which is researched and designed by Institute of Building Mechanization of China Academy of Building Research. It absorbs many advanced technology both from China mainland and abroad.
2) We adopt to use Dual drawbars structure on lifting boom, which enables the lifting boom to be unfer no stress at lifting surface other than uniaxial stress, and moreover, it gets rid of the stress peak. It greatly improves the fatigue safety performance of lifting boom.
3) Adopts VVVF stepless speed variation device for lifting, radius changing and slewing mechanisms, to make sure it works steadily and effectively, it also lowers the maintenance cost.
4)We can offer crane standard sections such as the FO/23B standard sections for customers to choose from.

3. Service
1.) Providing timely delivery, standby engineers are ready to solve any problems
2.) Providing 12 (twelve only)months product warranty period,with ample spare parts
3.) Providing work site installation guidance and training of operation and maintenances