China Crane Business Made in China by Hstowercrane

Crane business made in China by hstowercrane
This is QTZ 4708 tower crane which is made in China.
There are the specific pictures for the whole machine and some detailed pictures for its spare parts.

Mechanism Operation LevelLifting MechanismM5Slewing MechanismM4Trolley Traveling MechanismM4Rated torque (Kn.m)800Working range(m)Maximum Working Range56Minimum Working Range3Lifting height(m)Free-standWith wall-tie-ins40150Max lifting load (t)6Lifting MechanismMultiplying factorα=2α=4Lifting capacity/velocity
t/(m/min)1.2/803/403/102.4/406/206/5Steady decline lowest speed (m/min)≤7Power(kw)24/24/5.4Trolley Traveling MechanismVelocity (m/min)44/22Power (kw)3.3/2.2Slewing MechanismVelocity (r/min)0.64Power (kw)3.7x2Climbing MechanismVelocity(m/min)0.4Power (kw)5.5Working pressure (Mpa)25CounterweightMax working range(m)56Weight (t)15.2Total power (kw)34.7(exclude climbing mechanism)Working temperature(ºC)-20~+40
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 draw bars structure on lifting boom, which enables the lifting boom to be under no stress at lifting surface other than uni axial stress, and moreover, it gets rid of the stress peak. It greatly improves the fatigue safety performance of lifting boom.
3) Adopts VVVF step-less speed variation device for lifting, radius changing and slewing mechanisms, to make sure it works steadily and effectively, it also lowers the maintenance cost.


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 maintenance