Overhead Lifting Bridge Crane with Grab Bucket

Overhead Lifting Bridge Crane with Grab Bucket
Overhead Lifting Bridge Crane with Grab Bucket
Overhead Lifting Bridge Crane with Grab Bucket
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Application:
The overhead lifting bridge crane with grab bucket is commonly used for loading and unloading bulk materials in power plants, freight yards, workshops, and docks.

Parameters:
lifting Capacity t 16t 20t
Span m 16.5 19.5 22.5 25.5 28.5 31.5 16.5 19.5 22.5 25.5 28.5 31.5
Lifting Height m 28 26
Work Classification grade A6 A6
Speed Lifting m/min 41.8 45.7
Trolley Working Speed 43.2 43.2
Cart Working Speed 98 87.3 87.3
Size Limit S1 mm 2305 2635
S2 2060 2485
Main Size B mm 7593 7733 7833 7958 8058
W 4800 5000 4800 5000
K 2500 2500
H 2385 2535 2739
H1 940 1090 1090
H2 394 544 544 694 794 894 246 390 546 696 796 896
H3 2814 2964 2964 3114 3214 3314 2666 2816 2966 3116 3216 3316
H4 4999 5149 5149 5299 5399 5499 5101 5345 5501 5651 5751 5851
H5 600 482
b 260 300 300
Max wheel-pressure KN 206 218 233 247 257 269 229 243 254 270 279 293
Recommended Steel Track QU70 or Billet 90×90 QU70or Billet 90×90
Power 3 AC 50Hz 380V 3 AC 50Hz 380V
Grab Bucket Model U 141 137 138 133 134 129 130 155 151 152 147 148 143 144
type Light Middle Heavy Super Heavy Light Middle Heavy Super Heavy
volume 8 4.8 3.2 2.5 10 6 4 3
Material density t/m³ ≤1 >1~1.7 >1.7~2.5 >2.5~3.3 ≤1 >1~1.7 >1.7~2.5 >2.5~3.3
dead-weight kg 7840 7993 8143 8008 8159 8155 8305 9812 10098 10287 9976 10123 9780 10206
Main Sizes D 4380 4050 4050 3750 3750 3430 3430 5000 4500 4500 4000 4000 3800 3800
Ba 3200 2820 2820 2600 2600 2350 2350 3500 3200 3200 2900 2900 2400 2400
Bb 2350 2078 2078 1792 1792 1628 1628 2478 2288 2288 1892 1892 1892 1892
Bh 4775 4605 4605 4455 4455 4285 4285 5215 4955 4955 4795 4795 4695 4695
Features:
  • The classification grade of overhead lifting bridge cranes with grab bucket is A6, and its rated load lifting capacity is usually 5~20t.
  • The banging device is the four-rope grab bucket of double winding drum, which features a simple structure and reliable operation. The grab bucket can be opened and closed at any height.
  • The grab bucket is only suitable for handling bulk material in a natural accumulation state.
    If it will be used to grab the material in water or special material, customers should let us know before purchase.
  • Overhead lifting bridge cranes with grab bucket mainly consist of four parts: box-shape bridge, grab bucket trolley, cart operating mechanism, drivers’ cab and electrical gas control system.
  • Overhead lifting bridge cranes with grab bucket feature open-close mechanism and lifting mechanism. The grab bucket is suspended on the open-close mechanism and the hoisting mechanism by four wire ropes respectively. The open-close mechanism drives the grab bucket to close, so the grab bucket can grab the material. Then after the grab bucket closes, the crane will immediately activate the lifting mechanism to make the four wire ropes start the lifting operation under average loading. When uploading the materials, only the open-close mechanism is operating, the grab bucket will open immediately, then the material starts to incline. There are two opening directions of the grab bucket: the direction paralleled with main girder and the direction vertical with main girder.
  • All mechanisms of the overhead lifting bridge cranes with grab bucket can be operated inside the operating cab, there are three directions that we can enter in the plate door of the cab: the fringe direction, the side direction and the top direction.
  • The rated lifting capacity of overhead lifting bridge cranes with grab bucket includes the dead load of the grab bucket.
  • In order to ensure safe operation, handrails and railings are installed. The height of the railings was 1050mm, and the distance between two railings was 350mm. Between the spacing are two horizontal rails, and a protective panel with a height of 70mm at the bottom. Lights were placed under the bridge, and there are also insulating rubber and door switches in the operation cab. The transmission components are all equipped with protective hoods. Every railing door is also equipped with a safety switch. At the end of the operation mechanism is a stop gear, and the slide line is set with a hook block frame.
  • Overhead lifting bridge cranes with grab bucket can be used indoors as well as outdoors, but additional rain protection devices will be needed when they are used outdoors.

Index
heavy duty crane, bulk handling crane, overhead crane

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