Product Description

The Railway Freight Casting Steel Bogie is a robust three-piece cast steel bogie system specifically engineered for hopper wagon applications in heavy-duty freight rail service. Built around the proven cast steel three-piece bogie architecture—comprising two side frames, one bolster, and two wheelsets—this bogie delivers reliable performance for transporting bulk commodities including ore, coal, ballast, and other mineral aggregates .

Manufactured to meet international railway standards including AAR M-201 and ISO 26116 (applicable to cast steel three-piece bogies for railway freight cars), this bogie is designed for axle loads up to 25–32.5 tonnes and operating speeds up to 120 km/h . The bogie framework is constructed from cast alloy steels, with the side frame manufactured by casting with additional machining and riveting of wear-resistant plates, and the bolster serving as the structural bridge between the two side frames .

Product Function & Engineering Role

The bogie serves as the critical running gear component for hopper wagons, performing the following essential functions:

• Load Transmission: Transfers the wagon body load through the center plate to the side frames and axle boxes, and subsequently to the wheels and rails

• Structural Connection: Links the two side frames via the bolster, maintaining proper bogie geometry and lateral stability

• Suspension Support: Provides mounting points for spring sets, snubbing devices, and damping components

• Brake System Integration: Accommodates brake rigging and brake beam components for reliable stopping performance

• Curve Negotiation: Enables smooth negotiation of curves through articulated design

Bogie Frame Structure

Side Frame
The side frame is a primary structural element of the bogie framework, transmitting loads from the wagon body through the axle boxes to the wheelsets .

Bolster
The bolster serves as the structural bridge between the two side frames, transmitting the car body load through the center plate to the bogie while enabling rotational movement for curve negotiation .

Material Specifications

The bogie frame components are manufactured from cast steel conforming to international material standards. Available material grades include:

Alternative material equivalents include cast alloy steels 20GFL and 20GL, commonly used in international bogie applications .

Standard Compliance

The bogie is manufactured in accordance with the following standards:

Technical Specifications

Available Configurations

The bogie is available in various configurations to suit different hopper wagon designs and operational requirements:

• Standard Three-Piece Cast Steel Bogie: General freight service for hopper wagons

• K2 Bogie: Common configuration for 60-ton hopper wagons 

• K6 Bogie: Three-piece casting steel bogie for 70-ton hopper wagons 

• Motion Control® Bogie: AAR M-976 approved with variable damping 

• Custom Gauge Configurations: Available for 1000mm, 1067mm, 1435mm, 1520mm, and 1676mm gauges 

Applications

• Hopper Wagons: Ore, coal, ballast, and aggregate transport

• Unit Trains: High-capacity bulk commodity operations

• Mining Operations: Mineral and ore haulage

• Construction Material Transport: Ballast and aggregate delivery

• International Freight: North America, Africa, South America, Southeast Asia, CIS countries, and Europe 

matter you need the casting steel bogies for heavy axle load wagon or motor frame bogies for metro or LRT, or you have the requirements of low-cost or complicate, FETHRAIL can design and produce the most suitable bogies for your trains.

Our types of bogie:

● economical type of bogie: R80/B80/F80

● medium type of bogie: R100/B100/F100

● flapship bogie: B120/F120/G120/M120

R80/R100/B80/B100/B120 are casting steel bogies

F80/F100/F120 are welded frame bogies

G120 is non-motor welded frame bogie for general passenger car

M120 is motor or non-motor welded frame bogie for metro or LRT

you can choose your bogie type according to the running speed of your train.