The main railway vehicles used in railway logistics are railway tankers , which are the main special vehicles used for loading gas, liquid and powder on railways. If you live in the residential area next to the railroad track, you should see the railroad tanker, but there are many who have only heard of it, like Xiao Bian, but today they have come to understand the railway tanker. First, the chassis Railroad tankers have two structural forms: with or without an undercarriage. Tankers with underframes are all selected from the Ministry of Railways fixed type tanker frame such as G60 or G17. For tankers without undercarriage, the fixed Parts of the Ministry of Railways shall be used, and assembly shall be carried out according to the requirements of the Ministry of Railways TB-1532-84 "Technical conditions for tanker dumping." Second, bogie The bogie is also called the walking section. It is the key component to ensure the vehicle running quality by guiding the vehicle to run along the rails and bear various loads from the body and the line and ease the movement. Third, the brake device Braking devices are essential to ensure the safe operation of the train. Due to the large inertia of the entire train, not only must the braking device be provided on the locomotive, but also a braking device must be provided on each vehicle so that the running vehicle can be decelerated as required or parked within the prescribed distance. Fourth, coupler cushion device The vehicles are to be run in a row without the aid of a connection device. This kind of connecting device is mostly various types of couplers, and the rear tail frame of the coupler is equipped with a buffer device that can store and absorb mechanical energy to ease train impulses. Fifth, the tank The liquefied petroleum gas railway tanker tank is a cylindrical horizontal tank and is installed on the bottom frame. The tank body of the tanker is a steel welded structure. The head is a standard elliptical shape, and both the simplified and the head are rolled or stamped with a steel plate. The materials are generally 16MnR and 15MnVR. Its structural design, manufacture and acceptance shall be in accordance with the "Supervision Regulations for Pressure Vessel Safety Technology" and the "Regulations for the Safety Management of Liquefied Gas Railway Tankers" issued by the Ministry of Chemical Industry. After reading the above description, you should know the main structure of the rail tanker , which consists of the undercarriage, running gear , tanker, loading and unloading valve parts, safety valve, emergency shut-off valve, sunshade cover, console, and accessories. Waist Band Sewing Machine is suitable for lap seaming,attaching waistbands and line tapes,and inserting elastic.Major features of this model are wide range of applications on mid heavy and heavy weight fabric and special unique rear puller mechanism.These features enable it to produce durable and uniform stitches on fabric. Waist Band sewing machine Waist Band Sewing Machine,Industrial Waist Band Sewing Machine,Waist Band Attaching Sewing Machine,Chain Waist Band Sewing Machine DONGGUAN CHUANGHUI SEWING MACHINE CO.,LTD , http://www.ch-sewing.com