LB(BQ)Single Girder Explosion-Proof Overhead Crane
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  • Description
  • Parameters

LB(BQ) Explosion-proof Overhead Crane

▪ LB explosion-proof overhead crane apply to the working environment in factory that has explosive gas, including inflammable gas (such as ethane, propane, butane heptane etc), steam(such as hydrogen gas, water gas, acetylene etc). The explosion-proof grade is less than grade B or grade C and ignition temperature is more than T4(135℃) . And the explosion proof electric hoist adapts
to the area where explosive gas mixture maybe appear under normal circumstance, not adapts the environment that the explosive gas mixture appear continuously.

1. LB(BQ) Explosion-proof Overhead Crane operation
▪ LB(BQ)Explosion-proof Overhead Crane has two operation forms: ground operation and indoor operation. If required, it also can be operated with remote control. So choosing the operation forms according to the conditions at that time.

2. Explosion-proof Overhead Crane Parameters:
▪ Lifting capacity: 1ton, 2ton, 3ton, 5ton, 10ton
▪ Span: 8m, 9m, 10m, 11m, 12m, 13m, 14m, 15m, 16m, 17m, 19.5m, 22.5m
▪ Lifting height: 6m, 9m, 12m, 18m, 24m, 30m
▪ Lifting speed: 3.5m/min
▪ Crane traveling speed: 20m/min
▪ Electric hoist type: BCD

3. Explosion-proof overhead crane Features:
To meet the explosion-proof overhead crane requirements, the motor is comapared with the general construction motor has the advantages:
▪ Explosion-proof overhead crane motor according to intermittent cyclical type of work, usually with load duration rate, connecting times and the lifting times stated duty cycle of the explosion-proof
overhead crane electrical equipment status, are all important basises of selection;
▪ Explosion-proof overhead crane motor has high starting torque and maximum torque;
▪ Single beam reuse motor is smaller moment of inertia of the rotor, the rotor's length to diameter is larger;
▪ Single beam, the maximum safe reuse of motor speed over the rated speed ratio is higher, generally 2.5 times of the synchronous speed;
▪ Explosion-proof hoist motor has more than 2 kinds of insulation class, used respectively in different ambient temperatures.


4.Explosion-proof overhead crane Test:
▪To ensure the safe when the machine working, Every explosion-proof electric hoist design must be tested before shipped to customers.
▪The users must do operation according to the operation manual.


5.Dangerous gas that the crane can be used in the as follows:
 

Explosion-proof mark
(sorts, grad)

Dangerous gas

ExdIIBT4

Ethane, propane, Butane, Heptane, Decane, ethylene,
Propylene, carbon monoxide,petrol, acetone, styrene, toluene,
benzene,carbino, ethanol, chloronethylene, acetaldehyde, diethylether

ExdIICT4

Hydrogen gas, water gas, acetylene and the gas except ExdIIBT4


Overhead crane drawing


 

LB(BQ)single girder explosion-proof overhead crane

About  LB Overhead crane parametes, please see the other page of parameters.


6. Related single girder overhead crane products:
 ▪    LB(BQ)single girder explosion-proof overhead crane
 ▪    LD Electric single girder overhead crane
 ▪    LP Electric single girder overhead crane
 ▪    LX Electric Single Girder Suspension Overhead Crane
 ▪    LXB 0.5T~5T Electric Single Girder Suspension Overhead Crane

 
Ex-mark dIIBT4 dIICT4
operation type Ground operation
Crane travelling mechanism Travelling speed 10
reduction ratio 117.56
Motor Type BADY
Power (1-5t-2×0.8) 2×1.5(10t)
rotate speed(r/min) 1380
Lifting mechanism (electric hoist)
&Electric hoist travelling mechanism
Electric hoist type BCD
Lifting speed 3.5
Lifting height 6;9;12;18;24;30
Travelling speed 20
Motor BZDY
Working system Medium
Power supply 3-phase 380v 50Hz
Wheel diameter 270mm
Rail surface width 37-70mm



Load capacity(t) span (m) Crane total weight Max wheel pressure Min wheel pressure Basic size
h1 B K I1 I2 H H1
                      1 8 1.78 1.18 0.28 550 2500 2000 796 1274 810  
9 1.87 1.2 0.3  
10 1.95 1.22 0.32 490
11 2.03 1.24 0.34  
12 2.28 1.28 0.39  
13 2.43 1.32 0.42  
14 2.52 1.36 0.47  
15 2.6 1.37 0.48  
16 2.68 1.39 1.49 3000 2500 510
17 2.76 1.41 0.51 585 850  
19.5 3.2 1.53 0.66 650     870 530
22.5 3.57 1.65 0.78 700 3500 3000 580
2 8 2.05 1.77 0.32 595 2500 2000 871.5 1292.5 1000 490
9 2.15 1.8 0.36
10 2.25 1.85 0.38
11 2.35 1.85 0.4
12 2.45 1.87 0.42
13 2.61 1.91 0.46
14 2.71 1.94 0.49
15 2.81 1.97 0.52
16 2.91 1.99 0.54 3000 2500
17 3.01 2.01 0.56 3500 3000
19.5 3.86 2.15 0.73 800 1080 660
22.5 5.28 2.28 1.16 900 1120 785
3 8 2.15 2.3 0.33   2500 2000 818.5 1291 1150 530
9 2.25 2.34 0.37  
10 2.35 2.36 0.39  
11 2.45 2.39 0.42 650
12 2.55 2.41 0.44  
13 2.7 2.44 0.48 700
14 2.97 2.51 0.54  
15 3.07 2.54 0.57   580
16 3.17 2.57 0.6   3000 2500
17 3.27 2.59 0.62 800 1170 660
19.5 3.84 3.74 0.79 900 3500 3000 1185 745
22.5 5.34 3.12 1.17 1000 1210 820
5 8 2.45 3.42 0.35 720 2500 2000     1380 580
9 2.55 3.45 0.38
10 2.65 3.49 0.42
11 2.88 3.54 0.47 800 3000 2500 814.5 1310 1400 660
12 3.02 3.58 0.51
13 3.23 3.62 0.55
14 3.4 3.65 0.58
15 3.46 3.68 0.61
16 3.58 3.72 0.65
17 3.7 4.06 0.67
19.5 5.08 4.38 1.03 900 1415 785
22.5 6.23 4.37 1.32 1000     1440 825
10 8 2.19 4.57 0.85 900 2500 2000 1150
(H=9m)
1245
(H=12m)
1430
(H=18m)
1610
(H=24m)
1790
(H=30m)
1810
(H=9m)
1900
(H=12m)
2080
(H=18m)
2260
(H=24m)
2440
(H=30m)
1470 745
9 2.36 4.78 0.9
10 2.53 4.96 0.94
11 2.7 5.12 0.98
12 3.079 5.31 1.07
13 2.278 5.44 1.12
14 3.432 5.55 1.16
15 3.815 5.7 1.26 1000 1500 820
16 3.905 5.78 1.28 3000 2500
17 4.966 6.09 1.55 1100 1550 875
19.5 5.513 6.32 1.68 1250 3500 3000 1570 1010
22.5 6.8 6.73 2.01 1400 1620 1110
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