Bogie Well Tank Wagon --- Primarily used for transportation of Battle tanks, Heavy artillery equipments and Military vehicles. These wagons are fitted with single pipe graduated release Airbrake system with L-type composition brake block as per Indian Railway standard. Hand wheel type parking brakes are provided on both bogies for parking the wagon on gradients. Fitted with transition type center buffer couplers along with side buffers. This enables the wagon to be coupled to other rolling stocks either with center buffer couplers or screw couplers. Loading flaps are provided over side buffer to facilitate loading of battle tanks. Lashing chains, Track guides & scotch blocks are provided for securing the battle tanks during transportation.
The Underframe is a heavy welded structure. The main girders are made out of high strength micro alloyed steel to IS: 8500, Gr. 540. The other members are made out of general purpose structural steel to IS: 2062. The middle portion of under frame has a well length of 6100 mm to depth of 245 mm. The body bolsters which support underframe on bogies are of fabricated box sections to withstand all types of service loads. The ends of underframe i.e., head stocks are also welded 'C' sections out of plates. These headstocks house center buffer coupler and side buffers and are strong enough to withstand all buffing and draw forces. Light weight CASNUB-22 NLB cast steel bogies fitted with spring plank, long travel helical springs and load proportionate friction damping arrangement as per RDSO specification. The bogie is fitted with 1000 mm tread diameter wheel set with catridge taper roller bearing having a wheel base of 2000 mm. Elastomeric pads are provided over the axle to cater for dynamic shocks. Axle load - 22.9 T. Capacity - 56.1 Tonnes. Type - BWTB.