| Road Construction Gantry Crane |
| In general |
Simple structure, installation, use, and maintenance are all convenient. |
| Parts standardization, the generalization and seriation |
| Good in usability and produce conveniently |
| Self weight is low, high wind resistance. |
| Mechanical Part |
Main girder is used of U template and range of welding surface into the composite beams; |
| USES the high quality carbon steel of Q235B or Q345B; |
| The main girder and end beams are contected with the high strength bolt of 10.9 grade; |
| Electric System |
Module control speed, micro-speed and double speed. |
| Traveling and lifting smoothly. |
| The power for trolley moving adopts flat cable, sliding smoothly. |
| Protection Devices |
Preventing hook clashing the top. |
| Circuit self-test protection device. |
| Protecting the current lacking of any phase. |
| The single girder rain gantry crane is equipped with hoisting mechanism, electrical control box and rainproof devices. |
| Anti-collision, sound and light alarm devices. |
| Equipped with rail clamp. |
| Control Ways |
Generally, ground controlling |
| Cab controlling is also available according to customer's requirement |
| Operating cab: open style and close style, left or right installation |
|
Direction of entrance: side, end and top.
Technical Parameter
| Product specification |
|
250t×60m |
300t×108m |
600t×60m |
| Working class |
|
A5 |
| Capacity |
Common lifting |
t |
250 |
200 |
600 |
| Turning over |
t |
200 |
200 |
400 |
| Span |
m |
60 |
108 |
60 |
| Hoisting height |
m |
48 |
70 |
Above rail 40 Below rail 5 |
| Upper trolley |
Capacity |
t |
100×2 |
100×2 |
200×2 |
| Hoisting speed |
m/min |
0.5-5-10 |
0.5-5-10 |
0.4-4-8 |
| Traveling speed |
1~28.5 |
3~30 |
1~25 |
| Lower trolley |
Capacity |
Main hook |
t |
100 |
150 |
300 |
| Sub hook |
20 |
20 |
32 |
| Hoisting speed |
Main hook |
m/min |
0.5-5-10 |
0.5-5-10 |
0.4-4-8 |
| Sub hook |
10 |
10 |
10 |
| Traveling speed |
1~26.5 |
3~30 |
1~25 |
| Maintenance hoist |
Capacity |
t |
5 |
5 |
5 |
| Hoisting speed |
m/min |
8 |
8 |
8 |
| Trolley speed |
20 |
20 |
20 |
| Rotating speed |
r/min |
0.9 |
0.9 |
0.9 |
| Gantry speed |
m/min |
1~26.5 |
3~30 |
1~25 |
| Max. wheel load |
kN |
200 |
450 |
430 |
| Power source |
|
380V / 10kV; 50Hz; 3 Phase |
|
