Side-frame & bolster
Side frame and bolster are the two main components of railway bogie. As the biggest castings of the bogie
,side-frame and bolster frame are the main stress parts. So the quality of the two components is very important and pivotal.
Side frame is one of the main structural elements of the bogie frame work which is manufactured by casting, with additional machining and riveting of wear-resistant plates. Side frame represents a major piece of a freight wagon bogie, which transmits the load on the axle through the axle box.
Bolster is a bridge between the two side frames in the construction of a freight wagon bogie. Bolster is so important that we must to ensure reliability and durability.
We have many kind of type side-frames and bolsters
,We also can design new type which is meet your Spec or requirements.
n One bogie need two side frames,one bolster and two wheel sets to constituted.
n Our side frame and bolster have high level quality and strength,we also can recording your spec design new type to matching your special bogie.
n This two castings could be manufactured by different materials,and we also can according many different Spec,for example UIC, AAR, ASTM, BS, TB, and so on.
n According different axle load and different gauge,we have the ability to design the new type side frame and bolster to matching the bogie.
1. Product introduction
Bolster serves as a bridge between the two side frames in the construction of a freight wagon bogie. To ensure reliability and durability the bolster is casted from steel 20GFL or 20GL. One of the main frame details of a bogies framework Model No. 18-100. Set lifetime of a bogie frame before a bolster discarding is 30 years. The designated lifetime up to the first depot repair is 2 years, before the first overhaul is 8 years. Established time to failure is at least 2 years.
Overall dimension:
Bolster: 2.61m*39.5cm*47cm weight: 525kg.
2. About us
In order to meet the rapid development of the economy and the need of the freight wagon market, the ministry of railways proposed that the railway freight transport should be high-speed and heavy-haul. Bolster and side frame are the key components of the freight wagon bogie. The product quality and reliability related to the safety of railway transportation directly.
With the increased of the running speed and the transport capacity, the process of production manufacturing and production quality of the bolster need higher requirements in order to ensure the reliability of the products. Therefore, it's important to prevent the casting defects during the casting process to ensure the bolster have sufficient strength and fatigue performance.
Tedrail has the capacity to manufacture the bolster, our team of engineers will design the bolster suited your needs.
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