NATIONAL ALUMINIUM COMPANY LIMITED - Rites

6.5.1 Multiple pinions meshing with cast steel racks bolted to the end sectors shall impart drive
through hydraulic drive with each pinion drive through slow speed high torque hydr hydraulic
motors using gear boxes as applicable. Suitable oil coolers shall be provided for hydraulic
power pack. Suitable dust protective cover shall be provided.
6.6 Brake
6.6.1 An automatic electro hydraulic brake shall be furnished to hold the tippler in any position
with the load and against any movement except that provided by drive.
6.7 Limit Switches
6.7.1 Limit switches of suitable type which can be readily adjusted to give the desired tippling
angle shall be provided. An emergency over tip lim limit it switch operated by a striker on the
tippler trunnion shaft shall be furnished.
6.8 Ballast
6.8.1 Ballast necessary for counter weight and balancing the tippler shall be provided as per the
requirement.
6.9 Lubrication
6.9.1 All bearings shall be properly lubricated. Grease nipples and reservoirs shall be furnished
where necessary.
6.10 Guards
6.10.1 All gears inside machinery pits and other moving parts shall be securely guarded.
6.10.2 All necessary base plates, guide plates, chequered plate covering for drive pit and any other
pits, all required fixing materials, inserts and sleeves shall be furnished.
7.0 DATA SHEET
7.1 GENERAL
Wagon Type
: All types of wagons in coal transport used by Indian
Railways to move coal (as per latest test RDSO guidelines)
Moving Profile
: As per IR norms.
No. of tips (guaranteed) : 20 per hour.
Designed : 25 Tips per Hour
Rail Gauge
: 1676 mm.
Weigh bridge
: Load cell type
Duty
: Continuous 24 hrs.
7.2 DESIGN & CONSTRUCTION
Technical Specification:Sec-4,System System Parameters, Operation & Control Philosophy
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