QZ 5~20ton Grab Overhead Crane
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1.QZ 5~20ton Grab Overhead Crane
▪ The grab overhead crane lift the cinder, coal, sand, ore, limestone, slag, and other granular material in the indoor or outdoor. It apply to metallurgy, cement, chemical and other enterprises warehouses and workshops.
▪ The machine is A6 work systems, and the lifting weight includes the load weight of grab.
▪ This grab crane includes five parts, box structure, traveling mechanism, trolley, grab and electric equipment.
▪ Grab only applies to natural granular materials piled state, when crawling underwater materials or special materials shall be specially made when ordering.
▪ The crane cab and closed two separate types, control room entrance direction of face, side and physiognomy, shared production choice.

2. QZ 5~20ton Grab Overhead Crane
▪ Lifting capacity: 5ton, 10ton, 16ton, 20ton
▪ Span:10.5m~31.5m
▪ Lifting height: 8m~22m
▪ Lifting speed:40m/min, 39.2m/min, 43.39m/min, 43.3m/min
▪ Grab type: Orange-peel grab, Clamshell grab, waste garb

3. Working principle of garb overhead crane:
Extract device is a four-rope grab double drum, with simple structure and reliable work. Grab can open and close at any height, when crawling material fragmentation is less than 100mm, it will result in good effect and high productivity. When the material block is over 200mm, it need use with a toothed grab. The open closed direction of grad are two kinds: parallel and vertical beams. The parallel ones is special types, usually specified in contract.

Grab overhead crane drawing

A6 system Single Girder Explosion Proof Overhead Cranes
Load capacity (t) 5 10
Span m 10.5 13.5 16.5 19.5 22.5 25.5 28.5 31.5 10.5 13.5 16.5 19.5 22.5 25.5 28.5 31.5
Lifting height 8-22 8-20
Speed Lifting m/min 40 39.2
Travelling Trolley 45.4 45.4
Crane 95 87.8 89  
Max wheel pressure (KN) 91 97 103 110 117 124 135 142 122 129 135 144 153 162 171 198
Weight Trolley t 5.02 6.8
Total 19.8 21.9 23.5 25.8 28.5 31.6 35.4 38.7 25.7 28.1 31.3 32.6 38.4 40.2 44.3 48.4
Motor Lifting Type/KW YZR225M-8/22×2 YZR280S-10/37×2
Travelling Trolley YZR132M2-6/3.7 YZR160m1-6/5.5kw
Crane YZR160M2-7/7.5×2 YZR160L-6/11×2 YZR160M2-6/7.5×2 YZR160L-6/11×2
Grab Type Light Medium Heavy Light Medium Heavy
Capacity (m3 2.5 1.5 1 5 3 2
loose density (t/m3 0.5-1 1.0-1.8 1.8-1.9 0.5-1 1-1.8 1.8-2.9
Weight (t) 2.285 2.235 2.065 4.616 4.4 3958
Width b3 mm 1500 1250 1150 1900 1550 1320
Close length b1 2350 2150 1850 2150 2650 2410
Open length b2 3227 2798 2544 2950 3308 3070
Close height h1 2985 2765 2635 3549 3301 3184
Main dimension K mm 2000 2000
Wc 2250 2900
w 4400 4100 4600
H2 126 176 246 326 476 676 776 926 40 140 290 440 590 740 840 990
B 7600 6900 7650 6750 7650 7000
b 250 280
H rain-proof 2463 rain2176 rain-proof 2523 rain 2293
H1 755 855
H3 2235 2235
S2 1550 1730
S1 1525 2050
Crane rail recommend 43kg/m 50kb/m QU70 43kg/m 50kb/m QU70


Load capacity (t) 16 20
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 16-26 16-26
Speed Lifting m/min 43.39 48.1
Travelling Trolley 43.3 43.3
Crane 101.4 103.6 103.6
Max wheel pressure (KN) 198 212 223 238 250 264 245 259 271 286 301 317
Weight Trolley t 13.66 18.14
Total 46.2 49.7 53.5 59 63.9 68 54.2 59.4 62.8 67 72.3 77.3
Motor Lifting Type/KW YZR315M-10/75(75) YZR355L1-10/110
Travelling Trolley YZR160M2-6-IM1002/7.5(7.5) YZR160M2-6-IM1002/7.5(7.5)
Crane YZR160L-6/2×11(11) YZR180L-6/2×15(15) YZR180L-6/2×15(15)
Grab Type Light Medium Heavy Light Medium Heavy
Capacity (m3 8 4.5 3 10 6 4
loose density (t/m3 ≤0.96 ≤1.7 ≤2.5 ≥1 ≤2.5 ≤3.3
Weight (t) 6.322 7.5 7.003 8.272   8.045
Width b3 mm   2070 1678 3070   1874
Close length b1   3000 2720 3400   2800
Open length b2   3280 3000 3680   3090
Close height h1   4130 3850 4640   4215
Main dimension K mm 2500 2500
Wc 3500 4100
w 3500 4100
H2 147 297 447 547 697 799 199 349 499 601 801 803
B 7978 5100 4800 5100
b 300 300
H 2352 2582 2637
H1 990 1040 1040
H3 2275 2275
S2 2010 2380
S1 2210 2480
Crane rail recommend 43kg/m 50kb/m QU70 QU80 QU7100 43kg/m 50kb/m QU70 QU80
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