The tank car is a jar-shaped railway transport vehicle used to transport various liquids, liquefied gases, and powdered goods, including gasoline, crude oil, viscous oils, vegetable oils, liquid ammonia, alcohol, water, and various acids and alkalis, cement, lead oxide powder, etc.
The tankcarplay an important role in railway transportation, accounting for about 18 % of the total number of freight wagons.

Tank cars can be divided into two categories: railway transport tank and road transport tank.
Among them, railway transport tanks can be divided into light oil tank, viscous oil tank, acid and alkali tank, liquefied gas tank, and powder cargo tank.
The body of tank car is a horizontal barrel structure, and its barrel part is welded from the upper plate, bottom plate and end plate.

>TankCarUnderframe
Because the tank bodyis a stiff structure, the weight of the liquid in the tank is mainly borne by the tank, and then passed through the bracket and pillow beam to the bogie. Therefore, the bottom of the tank mainly suffers from horizontal longitudinal traction impact. There is a side beam between the end beam and the pillow beam, which is mainly used to increase the stiffness of the end and to transfer part of the longitudinal force to the pillow beam. In addition, the bottom frame is also equipped with railings, walk through platforms, handrails, and pedals.

>Tank Car Without UnderFrame/Baseless Tank Wagon
Since the body of tank car is a complete cylindrical structure with greater strength and stiffness, the tank can not only withstand the weight of the liquid contained, but also bear the longitudinal force acting on the tank. So the tank wagon also could be designedwithout a base frame. There is no middle beam, side beam or beam between the two pillow beams. The tank is welded with the traction beam and the pillow beam. The connection device between the tank and the bottom frame is removed, and there is no need to clip it. This design could reduce the weight of the tank,and could use the tank body to bearing the load.
The tank body of tank wagon with underframe or not have difference end supporting part. The bottom tank wagon traction beam, bolster beam and tank body connected byweldingare used for transmitting longitudinal forces.



East Railway’sTank Wagon Description
Parameter table