SA3 AUTHOMATIC COUPLERS FOR WAGONS
The SA3 type of coupler has been standardized for the railways in the Soviet Union after the second World warI. Further tests were carried out in the 1950s.
TheSA3 coupler , an easy and robust design. The function of the coupler is easy to understand and repair possible in each workshop. Failures in function are easy to fix and mostly manual to correct.
With higher impact speed, eespecially under the hard climate conditions and in curves when the disconnection with traction forces between the couplers is considered, SA3 authomatic couplers functyon excellent.
The benefit of SA3 coupler is about 5,000 tonnes heavy could be hauled. This was a good impulse because the transport capacities can be doubled.
Although the SA3 coupler is primarily used in the countries of the former Soviet Union, they are visible everyday at the transshipping stations, at the eastern borders of the European Union (Poland, Slovakia and Hungary).
Sweden began to use SA3 couplings in 1969 after problems with snapping chain couplers and a need for ever increasing capacity with higher train weights. Today, locomotives using couplings of the SA3 type haul a total weight of over 8000-ton in harsh weather conditions without any problem.
Today the SA3 -3 authomatic couplers are used by the following countries; Armenia, Azaerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Lithuania, Latvia, Moldova, Russia, Türkmenistan, Tajykistan, Ukraine, Uzbekistan, Finland, Irag, Turkey, Sweden, Norway, Australia, Slovakia. .
