Double Girder Crane consists of two girders mounted on two or four end carriages depending upon the duty of the overhead crane. The end carriages are fitted with wheels that travel on the rail by LT motors.The hoist is mounted on the trolley that travel on the upper sides of bridges on a square bar or rail.The power supply is single phase or 3 phases depending on the duty and capacity of the crane used. The electrical system consists of PVC Bus bar and Festoon system attached to the bridge.We have double girder overhead crane ranges from 5000 kg to 50000 kg with lifting height from 4 m to 18m with different overhead crane duties.
Sketch
| Lifting weight | t | 5 | 10 | 16/3.2 | 20/5 | 32/5 | 50/10 | |||
| Span | m | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | 10.5~31.5 | |||
| Max.lifting height | Main hook | 16 | 16 | 16 | 12 | 16 | 12 | |||
| Auxiliary hook | 18 | 14 | 18 | 16 | ||||||
| Speed | Hoisting | Main | A5 | m /min | 11.3 | 8.5 | 7.9 | 7.2 | 7.5 | 5.9 |
| A6 | 15.6 | 13.3 | 13 | 12.3 | 9.5 | 7.8 | ||||
| Auxiliary | 16.7 | 19.5 | 19.5 | 13.2 | ||||||
| Handcart travel | 37.2 | 43.8 | 44.6 | 44.6 | 42.4 | 38.5 | ||||
| Cart travel | A5 | 90.7~91.9 | 90.7~84.7 | 84.7~87.6 | 84.7~87.6 | 87.6~74.6 | 74.6 | |||
| A6 | 92.7~93.7 | 92.7~112.5 | 76~89 | 76~89 | 89~75.3 | 75~76.6 | ||||
| Motor | Hoisting | Main | A5 | Type kw | YZR180L-8/13 | YZR180L-6/17 | YZR225M-8/26 | YZR225M-8/26 | YZR280S-10/42 | YZR280M-10/55 |
| A6 | YZR180L-6/15 | YZR200L-6/22 | YZR250M1-6/37 | YZR250M2-6/45 | YZR280M-8/55 | YZR315S-8/75 | ||||
| Auxiliary | YZR180L-8/13 | YZR180L-6/17 | YZR180L-6/17 | YZR200L-6/26 | ||||||
| Handcart travel | YZR112M-6/1.8 | YZR132M1-6/2.5 | YZR132M2-6/4 | YZR132M2-6/4 | YZR160M-6/6.3 | YZR160M2-6/8.5 | ||||
| Cart travel | A5 | YZR132M2- 6/2×4 | YZR132M2- 6/2×4 | YZR160M1- 6/2×6.3 | YZR160M1- 6/2×6.3 | YZR160M2- 6/2×8.5 | YZR180L- 8/2×13 | |||
| A6 | YZR160M1 6/2×5.5 | YZR160M1 6/2×5.5 | YZR160M2- 6/2×7.5 | YZR160M2- 6/2×7.5 | YZR160L- 6/2×11 | YZR180L- 8/2×11 | ||||
| Weight | Handcart | A5 | kg | 2126 | 3424 | 6227 | 6856 | 10877 | 15425 | |
| A6 | 2224 | 3562 | 6427 | 7180 | 11625 | 16400 | ||||
| Total weight | A5 | 12715~ 31405 | 14270~ 34405 | 19128~ 39428 | 19947~ 41497 | 26901~ 52748 | 35317~ 64880 | |||
| A6 | 12991~ 31596 | 14719~ 34699 | 20045~ 41315 | 20984~ 44225 | 28061~ 55272 | 36075~ 67242 | ||||
| Max.wheel pressure | A5 | kg | 7400~ 12500 | 10200~ 16000 | 14100~ 20500 | 12107~ 16842 | 23700~ 32700 | 33300~ 45000 | ||
| A6 | 7500~ 12600 | 10400~ 16200 | 14500~ 21100 | 12737~ 17950 | 24200~ 33500 | 33600~ 45700 | ||||
| Steel track recommended | 43kg/m | QU70 or 43kg/m | QU80 or Square steel 100 | QU70 or Square steel 90 | QU80 or Square steel 100 | |||||
| Power source | Three-phrase A.C.50Hz 380V | |||||||||
Safety Features
Weight overload protection devices
Emergency stop system
Hooks with latch
High quality rubber buffers
Protective earthing
Crane switch and travel end switch
Current overload protection function
LINKS : Dongqi Crane