Semboku Rapid Railway

The Semboku Rapid Railway Line (泉北高速鉄道線) is a railway line in Osaka Prefecture, Japan, operated by the private railway operator Semboku Rapid Railway (泉北高速鉄道). The line connects Izumi-Chūō Station and Nakamozu Station, with through operations to and from the Nankai Kōya Line up to Namba Station in southern downtown Osaka.

Services
Along with services inside the line, through trains also operate to the Nankai Kōya Line beyond Nakamozu to Namba.


 * ■ Limited Express Semboku Liner (特急 泉北ライナー) (LE)
 * All seats are reserved. Operations started on 5 December 2015. Trains pass Sakaihigashi and Fukai non-stop for the first time.


 * ■ Sub-Express (区間急行) (SbE)
 * Operated all day, through to Namba.


 * ■ Semi-Express (準急) (SmE)
 * Trains are operated all day, through to Namba.


 * ■ Local (各駅停車) (L)
 * Operated all day. Mainly shuttles between Nakamozu and Izumi-Chūō (some trains for Komyoike). During the daytime and late at night, some services operate between Izumi-Chūō and Namba.

List of stations
All stations are located in Osaka Prefecture.
 * O: Trains stop.
 * | : Trains pass.
 * See Nankai Koya Line article for the stops of the through trains to Namba between Namba and Nakamozu.

Rolling stock
, the railway operated a fleet of 108 electric multiple unit (EMU) vehicles, all based at Nakamozu Depot.

Semboku Liner limited express services

 * Semboku 12000 series EMU
 * Nankai 11000 series EMU (sometimes substituted by Nankai 12000 series)
 * Nankai 50000 series EMUs (since November 2022)

From 27 January 2017, a new Semboku 12000 series EMU was introduced on Semboku Liner services.

Local services

 * Semboku 3000 series two- and four-car EMUs with stainless steel bodies
 * Semboku 5000 series eight-car EMUs with aluminium bodies
 * Semboku 7000 series two-, four-, and six-car EMUs with aluminium bodies
 * Semboku 7020 series two-, four-, and six-car EMUs with aluminium bodies

Former rolling stock

 * Semboku 100 series

Future rolling stock

 * Semboku 9300 series four-car EMUs with stainless steel bodies (to be introduced Q3 2023)

History
The section from Nakamozu to Izumigaoka opened on 1 April 1971, with double track and electrified at 600 V DC. The overhead line voltage was increased to 1,500 V DC from 7 October 1973, and the line was extended to Toga-Mikita on 7 December 1973.

The line was extended to Komyoike on 20 August 1977, and to Izumi-Chuo on 1 April 1995.

Future plans
Owing to ongoing financial constraints caused by the COVID-19 pandemic, Semboku Rapid Railway announced that it would be merged into Nankai Railway. The merger is planned to take place in early 2025.