Air Brake Parts Brake Slack Adjuster Brake Regulator for Railway Car

Brief introduction:
Slack adjuster is also known as automatic brake shoe clearance regulator. It is an important part of the truck braking rigging device. When the brake shoes are worn and the clearance between brake shoe and wheel thread increases, the slack adjuster will automatically shorten and adjust the clearance between brake shoe and wheel thread to the normal range; When the new brake shoe is replaced, the clearance becomes smaller, and the slack adjuster automatically extends to adjust the clearance to the normal range, so as to keep the piston stroke of the brake cylinder within the specified range.

At present, the commonly used slack adjuster for freight cars in China are ST1-600 and ST2-250 two-way slack adjusters, both of which are controlled by levers. The main difference is the extension length of screw: ST1-600 type’s extension length is 600 mm, while ST2-250’s is 250 mm. ST1-600 type slack adjuster is generally installed at the position of the upper pull rod of the original vehicle, and ST2-250 slack adjuster is generally installed at the position of the middle pull rod in the original vehicle. ST brake slack adjuster has two-way adjustment function, and adopts non self-locking threaded mechanical structure. It has features of reliable function, compact mechanism, rapid action and no interference to air braking.

Technical parameters:

Detail photos:

ST1-600 Slack adjuster and ST2-250 slack adjuster


Inside struture of ST type slack adjuster:


Application on railway frieght cars:


FAQ:
1. What is the L value of the screw length of the brake regulator after loading?
When all vehicles are equipped with new high wear synthetic brake shoes, the extension length of brake regulator rod is: st1-600 500-570mm; ST2-250 type: 200-240mm

2. What are the advantages of installing brake regulators on vehicles?

• No matter whether the clearance between the brake shoe and the wheel is larger or smaller than the normal clearance, the brake regulator can automatically adjust to the normal clearance. In this way, the braking stroke can be maintained within the specified range and the necessary braking force can be maintained. Therefore, it can stop within the specified braking distance to ensure the safety of the train;
• During driving, the braking force of each vehicle is uniform, which can reduce the impact of each vehicle in the train due to uneven braking force and make the train stop smoothly;
• Save labor, reduce the heavy physical labor of train inspectors and reduce the stop inspection time;
• Save the compressed air consumption of the train, save energy and reduce the inflation time of the train.

Tongling Tieke Railway Equipment Co., Ltd (Tieke Railway) is a high tech private company transformed from a factory under Chinese Ministry of Railways in 2016. It is specialized in manufacturing, repairing, renting various railway wagons and providing various wagon spare parts for customers in industrial, mining, metallurgy, chemical, oil, energy, logistic, and local railway transportation who own railway lines for self use.

Tieke Railway is located in Lion Mountain High Tech Industrial Development Zone, Tongling City, Anhui Province, with convenient distance to express way, high speed train, and Nanjing Lukou International Airport. It has 8.5 million USD register capital, 60000㎡covered area and 30000㎡plant area. There are 250 employees, 30 of which are senior and intermediate engineers and have rich working experiences in Chinese railway.

Tongling Tieke Railway Equipment Co.,Ltd has a complete produce line for railway wagons manufacture and repair. It is capable of providing comprehensive services like railway wagons R&D and manufacturing, railway wagons reconfiguration, railway wagons repairing, railway wagons renting, railway wagon spare parts and etc. It manufactures, maintains and repairs various railway wagons like open wagons, flat wagons, self-unloading wagons, hot metal wagons, hopper wagons and other special function wagons. Besides, Tieke Railway could manufacture and supply various kinds of wagon spare parts like wagon bogies, wheel and axles, braking system parts, coupling system parts and other wagon parts. Each year, Tieke Railway could manufacture over 1000 sets wagons, repair 3000 sets wagons, rent 650-1000 sets wagons and sell over 50,000 sets wagon spare parts.

Tieke railway rents over 600 sets flat wagons, ballast hopper wagons to national companies like China Railway Group(CRG), China Railway Construction Corporation(CRCC), CRRC and etc, which create a precedent for private enterprises to rent railway vehicles to state-owned enterprises and central enterprises. Since 2018, Tieke Railway has provided various railway wagons to customers in Laos, Vietnam, Myanmar, South Korea, Russia, Australia, Sierra Leone, Zambia, Germany, Italy and etc.

On the basis of consolidating the original business, Tieke Railway has increased scientific and technological investment and accelerated scientific and technological innovation and new product development. Since 2018, the company has applied for over 30 product patents and developed a variety of domestic advanced and practical technical products related to railway equipment. In 2019, the company obtained the high-tech enterprise certificate issued by the national science and technology department and the qualification to produce military product.

Consolidate the existing steel, coal, chemical industry, local railways, electric power and other railway self use wagons customers; Combined with the development trend of national urban rail transit, expand the new construction of metro vehicles; Provide on-site maintenance and transformation services for self owned vehicles for industrial and mining enterprises; Respond to the national policy of military civilian integration and gradually apply for military production qualification; Jointly develop new products with domestic scientific research institutions and colleges and universities; Cross shareholding with related enterprises to improve product market share; With ‘one belt and one road’ policy, explore and develop international railway wagons market and railway wagon spare parts market.

Tieke Railway has acquired ISO9001 quality management certification, ISO14001 Environmental management certification and ISO 18001 health and safety management system certificate. Adhering to the tenet of ‘ human oriented, pragmatic and efficient, sincere cooperation, mutual beneficial and win-win’ , Tieke Railway provides high quality railway products and satisfactory services to customers all over the world. Warmly welcome to visit our factory!