quality Railway Freight Wagon & Railway Hopper Wagons factory

Our new wagon plant, whose production capacity is up to 2,000 sets wagons, is coming to final stage. The new plant with more railways which could park 300 sets wagons at the same time. It is giong to start production since Feb, 2024. The new office building integrates work, meeting, dinner, and enjoyment functions.  The new workshop will have better modern fabrication equipment and stricter management.

On August 14, 2022, Tieke Company organized a summer outgoing . The location of this visit is Xiangshan Film and Television City located in Zhejiang Province. Arriving at the filming locations of many famous film and television dramas, we seem to have traveled through time and space.

The chassis of railway freight cars is a rectangular frame composed of various longitudinal and transverse steel beams, generally consisting of center beams, side beams, sleeper beams, crossbeams, end beams, and floor crossbeams. It supports the vehicle body and is the foundation of the vehicle body. The chassis of the vehicle bears the entire weight of the upper body and load, and transmits the weight to the running gear through the upper and lower center plates.   The underframe of railway freight cars is a relatively complex steel structure, with each beam components forming an overall framework. The beams are constrained by each other, and if one part bends, it will cause deformation in other parts. During the maintenance of railway freight cars, clear regulations are made for the bending deformation and adjustment of each beam of the chassis:   ◆When the sag between the middle and side beams is greater than 30mm, adjust and repair them to the horizontal line of 0~+12mm; The center beam does not exceed the limit, and while the side beam exceeds the limit, the side beam can be adjusted to the existing deflection of the center beam.   ◆Upward and downward deformation of traction beam and pillow beam's outer side beam not over 20mm, otherwise repair and adjust to +-5mm with horizontal level.   ◆Adjustment and repair of metal auxiliary beams with bending greater than 20mm   ◆When the side bends of center beam and side beams greater than 30mm, adjustment and repair.   ◆The traction beam left, right bend no more than 20mm. When exceeds the limit, repair and adjust to no more than 5mm.   ◆When the expansion of the traction beam exceeds 20mm on one side or the sum of both sides exceeds 30mm, it shall be adjusted and repaired.   ◆For open wagons, when side bend of upper side beam, side bend of upper end beam and vertical bend of upper side beam are over 50mm, repair and adjustment.   ◆For open wagons, side column connecting block bending over 20mm, repair and adjustment.   ◆The left and right height difference of same end beam is over 20mm, repair and adjustment.

Depot repair is an important part of railway wagon maintenance system. It plays an important role in ensuring the technical status of railway wagons, improving railway wagons operation quality and application efficiency, ensuring the safety of trains and smooth railway transportation. The main task of depot repair is to maintain the basic performance of railway wagons and deliver goods in safe and reliable.   The repaired railway wagons must be inspected to be qualified before assembly with bogies. The assembly of bogie center plate should meet the following technical requirements: When assembling the lower center plate, It must adopt FS type, BY-B type or BY-A type lock nut, install Φ4mm cotter pin, and matched with 10.9 grade bolts and nuts as specified in GB3098.1, and the BY-B type lock nut must be installed with spring washer. Before assembly the bogie center plate, the burrs on the surface of the bolster center plate, the bottom plane of the center plate and around the bolt holes must be removed, the protrusions must be ground flat, and there must be no gap after assembly. When adjusting the height of the center plate, the center plate backing plate must use steel backing plates, not more than 2 pieces, the total thickness and the thickness of each backing plate should meet the regulations, and the two backing plates must be fixed by spot welding by four sides. There must be no foreign matter in the lower center plate, and the special lubricating grease for the center plate must be evenly filled. (Grease should not be applied to those equipped with a center disc wear disc or a center disc liner).

NSW type hand brake machine installation   NSW type hand brake machine is partially improved on the basis of FSW type hand brake. It retains the advantages of FSW type hand brake, simplifies the structure, and has good anti-slip function. NSW type hand brake has become the main type of hand brake for railway freight cars in China.     There are four mounting holes with diameter of 18 mm on the base of NSW hand brake, which are arranged in a rectangular shape. The vertical distance of the hole centerline is 305 mm, and the horizontal distance is 286 mm. Considering that the chain is wound on the winding shaft during braking, the vertical centerline of the crank or pulley corresponding to the chain of the hand brake should be staggered by 40mm from the centerline of the winding shaft, and the pulley centerline should be 10mm in front of the installation of the hand brake.     It is recommended that the vertical distance between the center of the hand wheel and the brake pedal or the platform surface of the vehicle end should be 762mm, 635mm at least, and 1016mm at most. For flat cars, the size shall be determined according to the convenience of use.     When the hand brake is installed on the flat car, the top surface of the hand brake shall not interfere with the flat position of the end plate. In order to facilitate installation on the end beam of the flat car, the diameter of the hand wheel is reduced from 560mm to 400mm. Even so, it can fully meet the requirements of the manual brake in the ‘Railway Technical Management Regulations’ for the conversion of 40kN brake shoe pressure of each vehicle (according to the user's requirements, a hand wheel with a diameter of 560mm can also be assembled). In addition, in order to be interchangeable with FSW hand brake, the spacing of its mounting holes should be consistent with that of FSW hand brake.    

Railway has always been the first option of coal transportation in China.   The big demand of coals has seen Chinese economic development and also pushes the innovation of our railway equipment.The wagons capacity improves from 60 tons, 70 tons to 80 tons and the speed from 80km/h to 120km/h.   Traditionally, the coal wagons were discharged by sided hatches by manual, which was slow, danger and cost labor.Nowadays, we have wagons dumper machine. It could realize one time overturn all the goods in the wagons. By different group of the dumpers, it could overturn and discharge 8 or more carriages one time. One operation is completed within 20 seconds.   To adapt to the dumpers unloading, the railway wagons will be installed by rotatable couplers. This saves lots of operation, time and humman labor.   https://www.youtube.com/watch?v=32zW17hoJ6A

In November, 2022, leaded by CREC, Tieke Railway repair wagons team has come to Ethiopia and carried out the guide services of 2 months. Tieke Railway, as Chinese private railway wagons producer and wagons leaser, have accumulated rich experiences in railway wagons repair and refurbishment. Through the overseas repair services, we have more confidence in overseas railway market.