Descriptions of Tower Crane
The 4T QTZ40 tower crane features a robust lifting torque of 40 tm, its max lifting capacity is 4 tons. The max lifting capacity at its max radius of 45 meters is 0.8 ton. All assemblies of Jushen products are processed with a hot galvanizing technique, to ensure useful lifetime of 10 to 15 years.
Technical Data of Tower Crane | Lifting height (m) | Multiplying ratio | Fixed type | Attached type |
| α=2 | 32 | 120 |
| α=4 | 32 | 70 |
| Range (m) | Max. range | 30/35/40/45 |
| Minimum range | 1.7 |
| Maximum lifting capacity (t) | 4 |
| Working temperature (℃) | -20~40 |
| Total power (KW) | 21.1 (excluding the hoisting mechanism motor power) |
Size table
| Jib length (m) | Weight (t) |
| 45 | 9.4 |
| 40 | 8.1 |
| 35 | 7.3 |
| 30 | 6 |
Configuration information:
(1) Hoisting mechanism:
| Ratio | α=2 | α=4 |
| Speed (m/min) | 7 | 35 | 70 | 3.5 | 17.5 | 35 |
| Lifting capacity (t) | 2 | 2 | 1 | 4 | 4 | 2 |
| Motor type | YZTD225M2-4/8/32 |
| Working class | M5 |
| Motor power (KW) | 15/15/3.5 |
(2) Slewing mechanism: | Slewing speed (r/min) | 0.62 |
| Motor type | YZR132M2-6 |
| Working class | M4 |
| Motor power (KW) | 3.7 |
| Motor velocity (r/min) | 908 |
(3) Luffing mechanism: | Tractive speed (m/min) | 20/40 |
| Motor type | YDEJ100L-4/8 |
| Working class | M4 |
| Motor power (KW) | 2.4/1.5 |
| Motor velocity (r/min) | 1273/638 |
(4) Jacking mechanism: | Jacking speed (m/min) | 0.6 |
| Motor type | Y132M-4 |
| Motor power (KW) | 5.5 |
| Motor velocity(r/min) | 1440 |
| Operating pressure (MPa) | 20 |
Jushen is a reputable construction crane manufacturer since 1974, an experienced 4T QTZ40 tower crane supplier, our company design and manufacture building construction machinery and heavy engineering equipment as well as providing vertical lifting solutions for customers. With decades of experience and a wide range of metal machining and testing equipment, we can provide quality building construction crane and custom tower cranes in specific needs.
