Bandaged and integrated wheels are the two varieties of train wheels/ Locomotives that may be found in production and use today. Integrated wheels are regarded as one of the most important safety-related items developed by the railroad industry (monobloc).
Bandaged wheels for Locomotives wagons consist of the wheel core and the wheel bandage. During the wheel’s operation and running of the associated rail cars, this bandage is in contact with the rail lines and provides stability and correct guidance. The bandage is a steel rim with a special geometric shape and is assembled on the wheel core under special conditions. It provides locomotives and rail carriages. Wagon bandages must have very special and precise features to guarantee garlic safety.
Forging and rolling are two of the production methods that are utilized when making bandages. In addition, for the bandage to satisfy the technical criteria and the microstructural parameters defined, it is put through a unique heat treatment following the hot forming process and before the machining process.
After the final machining is done according to plan and a suitable profile shape is made on the working surface of the wheel, the finished product is put on the core, and a wheel is made. When the described steps are used to make a pair of bandaged wheels and put them on the axle, the “wheel and axle” set is ready to be put on the train bogie.
As was already said, the bandage is in direct contact with the rails and is subjected to very high dynamic and abrasion stresses during operation. This means it must have mechanical strength according to the standard to work well and meet expectations, but it should not be so hard or strong that it damages the railway lines. So, the mechanical properties of this product must fall within a certain range, and the profile of the wheel’s working surface must be just right to ensure the safest conditions on the road.
Isfahan Kafriz Company, which is Railway Tyres for Freight Wagons Passenger Cars producer, is proud that after about three years of engineering and research activities and many trial productions, relying on its power and experienced and dedicated experts, it has finally figured out how to make monobloc wheels and train wagon bandages, which is a very complicated process. According to the self-sufficiency act, he was the first to make internal monobloc wheels and train wagon bandages. Before we go any further, it is important to note that many companies worldwide only make this product. This is because it has made with advanced technology, has special metallurgical challenges, and has a very high safety factor. Because of embargo problems, there will be a lot of trouble and problems in the domestic transportation business.
Isfahan Kafriz Company is the only company in the country and the Middle East that makes this product. Making it locally has helped solve some problems in the transportation industry and made it less dependent on foreign companies.
| Product Name | Unit of measurement | HS code | Customers | Technical Specifications | ||||
| Bandage Group | Ring | 86071910 | railroad transportation firms (passenger-cargo) Manufacturing businesses for wagons – Manufacturers of locomotives – Urban railway operators | Row | Descriptions | |||
| 1 | Model | Bandage ۹۲۰ – B2N IK41 – A11 Bandage ۹۶۰ – B2N IK41 – A12 Bandage ۹۸۰ – B2N IK41 – A13 Bandage ۹۲۰ – B3N IK41 – A21 Bandage ۹۶۰ – B3N IK41 – A22 Bandage ۹۸۰ – B3N IK41 – A23 Bandage ۱۰۰۰ – B2N K41 – A14 | ||||||
| 2 | Size | .Outside Dia | (mm) 920 – 1000 | |||||
| .Inside Dia | (mm) 740 – 840 | |||||||
| Width | (mm) 132 – 138 | |||||||
| 3 | Weight | 275 – 310 (Kg) | ||||||
| 4 | Material base | Carbon Steel – Ck series | ||||||
Train wagon bandage product standards
| Product name | Approvals / Standards / Licenses | Receipt/estimated date | validity duration | issuer reference |
| Wagon bandage | Confirmation of product conformity to UIC 810-1 standard and capability to create train wheel bandages | 1394/7/12 | Continuous tracking | Islamic Republic of Iran Railways |
• utilizes rail transportation
• to transport goods using freight wagons
• Intercity trains need to move passengers, so
• to transport people in city trains (metro)
• Compared to driving, rail transit is much safer.
• considerable fuel resource savings when compared to other transportation systems
• preserving and enhancing the environment while reducing emissions from rail transportation
• Employing people and attracting talent to the fields of production and services
• Costs for goods and freight are dramatically reduced, and there is a chance to get an edge over competitors in several industries.
The ring-rolling operation is typically one of the more difficult steps in the production process. It is utilized in one of the steps of bandage production and enables the production of seamless steel rims in a range of diameters. This approach also produces other specialized goods in the oil and gas, power generation, and water industries. The localization of this technology in the nation has improved the infrastructure for specialized manufacturing processes in the nation’s major industries.
