A gantry crane has a hoist in a fixed machinery house or on a trolley that runs horizontally along rails, usually fitted on a single beam (mono-girder) or two beams (twin-girder). The crane frame is supported on a gantry system with equalized beams and wheels that run on the gantry rail, usually perpendicular to the trolley travel direction. These cranes come in all sizes, and some can move very heavy loads, particularly the extremely large examples used in shipyards or industrial installations. A special version is the container crane (or Portainer crane, named by the first manufacturer), designed for loading and unloading ship-borne containers at a port.
圖片編號:
14612301
拍攝者:
Aurell
點數下載
授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
---|---|---|---|---|---|
標準授權 | XS | 480 x 319 | JPG | 13 | |
標準授權 | S | 800 x 531 | JPG | 15 | |
標準授權 | M | 2125 x 1411 | JPG | 18 | |
標準授權 | L | 2743 x 1822 | JPG | 20 | |
標準授權 | XL | 3470 x 2305 | JPG | 22 | |
標準授權 | MAX | 4288 x 2848 | JPG | 23 | |
標準授權 | TIFF | 6064 x 4028 | TIF | 39 | |
進階授權 | WEL | 4288 x 2848 | JPG | 88 | |
進階授權 | PEL | 4288 x 2848 | JPG | 88 | |
進階授權 | UEL | 4288 x 2848 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
WEL
PEL
UEL
標準授權 | 480 x 319 px | JPG | 13 點 |
標準授權 | 800 x 531 px | JPG | 15 點 |
標準授權 | 2125 x 1411 px | JPG | 18 點 |
標準授權 | 2743 x 1822 px | JPG | 20 點 |
標準授權 | 3470 x 2305 px | JPG | 22 點 |
標準授權 | 4288 x 2848 px | JPG | 23 點 |
標準授權 | 6064 x 4028 px | TIF | 39 點 |
進階授權 | 4288 x 2848 px | JPG | 88 點 |
進階授權 | 4288 x 2848 px | JPG | 88 點 |
進階授權 | 4288 x 2848 px | JPG | 88 點 |