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These Wagons are also known as Rapid Discharge Coal Hopper Wagons. The type used by Railways is BOBRN type having 8 underside doors and the one used by Thermal Power Stations has 12 underside doors.
These Wagons can carry 60 tonnes graded coal and can ply in merry-go-round system. The loading is done from the top and unloading is done automatically from the bottom through Pneumatic Door Operating Mechanism activated by Rail Side Devices mounted on the track. The
electropneumatic system is actuated from 24 to 32 Volt DC operated Line Side Equipment at the desired place. The Door Operating Mechanism has been successfully developed by
BBUNL and are in wide use. The wagons have the same features as other 8 wheeler bogie type wagons used for carrying bulk load.
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Product
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Open Coal Hopper Wagon
(BOBR)
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Open Ballast Hopper Wagon (BOBS)
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Track
Gauge
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1676
mm
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1676 mm
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Total
Weight
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81.28
M.T.
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91.6
M.T.
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Tare
Weight
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27.45
M.T.
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30.4
M.T.
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Load
Capacity
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58.38
M.T.
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61.2
M.T.
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Volume
Capacity
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57.20
cu.m
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34 cu.m
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Overall
Length
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11600
mm
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11597 mm
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Width of
Carbody
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3500
mm
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3020 mm
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Height of
Carbody
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3735
mm
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3304 mm
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Coupler
Type
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A.A.R 'E" Type (High Tensile) with high capacity
Draft-gear
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A.A.R 'E" Type (High Tensile) with high capacity Draft-gear
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Bogie
Type
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Casnub 22 NLB Cast
Steel
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Casnub 22 NLB Cast Steel
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Brake
System
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Air & Hand
Brake
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Air & Hand Brake
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Max.Speed
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100
Km/h
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100 Km/h
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Hopper Wagon
Hopper Wagon
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