Ban Phai Na Bun Junction railway station is a railway station located in Taling Chan Subdistrict, Mueang Saraburi district, Saraburi province. It is a class 3 railway station located 162.811 km (101.2 mi) from Bangkok railway station. It opened on February 3, 2020, as part of the double tracking of the Phra Phutthachai Freight Line. It acts as a junction for the newly-constructed chord line connecting the station and Nong Bua Junction. Before this, trains had to switch directions at Kaeng Khoi Junction if they were travelling in the direction of Ban Phachi Junction. As it is a freight-only station, no passenger trains operate at the station.