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Explosion Proof Overhead Crane

Explosion Proof Overhead Crane

Double girder overhead hoist crane with explosion proof hoist are widely and high-efficiency applied in oil plant, in gas industries and related industries.All crane components are selected to ensure the high level of safety required for the hazardous atmospheres in chemical and petrochemical plants, oil refineries, gas power plants, wastewater treatment plants, paint shops and other industrial sites. 

Overview:

The crane is qualified inspected by inspection unit of blast-proof product which is appointed by the state. The crane has got Certification of conformity of An Instrument for Explosive Atmosphere. The signs of blast-proof are ExdΙΙBT4 and ExdΙΙCT4 respectively.The product is applicable to the place in the factory where the capability of transmitting-explosive is no higher than grade ΙΙB or ΙΙ C, and where has mixture of detonating gas which is composed of flammable gas or steam, whose ignition temperature team belongs to T1 ~ T4 team , and air. The applicable danger area is Area 1 or Area 2.

Gas Environment
Zone 1
A place in which an explosive atmosphere consisting of a mixture with air or flammable substances in the form of gas, vapour or mist is likely to occur in normal operation occasionally.
Zone 2
A place in which an explosive atmosphere consisting of a mixture with air of flammable substances in the form of gas, vapour or mist is not likely to occur in normal operation but, if it does occur, will persist for a short period only.
Dust Environment
Zone 21
A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur in normal operation occasionally.
Zone 22
A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

Features

 
Mechanical
 
Electrical
No.
Item
No.
Item
1
Overload Limiter
1
Main isolating switch
2
Limit Switch
2
Short-circuit protection
3
Interlock protection device
3
Under-voltage protection
4
Buffer
4
Zero protection
5
Rail tongs, Anchor device, 
5
Motor overload protection
6
Rail clear plate
6
Emergency stop system 
7
Protective cover
7
Current overload protection
8
Bus Bar preventer plate
8
Security chain protection 
9
Anti-collision device
9
Groud protection

Specification

 

Lifting Capacity   T
5
10
16/3.2
20/5.0
32/5.0
50/10.0
Span M
10.5-31.5
Lifting height M
Main Hook
16
16
16
12
16
12
Aux Hook
 
 
18
11
18
16
Speed M/min
hoist
Main hook
A5
12.5
8.5
7.9
7.2
7.8
5.9
A6
15.5
13.3
13
9.7
9.5
7.8
Aux hook
 
 
 
14.5
12.7
19.5
13.2
Trolley traveling
38.3
13.8
42
44.5
44.6
42.4
Bridge traveling
A5
90.7
90.7
91.9
91.9
87.6
74.6
A6
115.6
115.6
116.8
116.8
101.4
87.3
Rail recommended
Trolley
15kg/m
43kg/m
Bridge
43kg/m
QU70
QU80
Power Source
380V 50HZ 3Phase or according your requirments

 

SUBMIT

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