Semboku Line

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

Services

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

■Limited Express Semboku Liner (特急泉北ライナー, Tokkyū Senboku Rainā) (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, Kukan Kyūkō) (SbE): Operated all day, through to Namba.

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

■Local (各駅停車, Kakueki Teisha) (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 the Koya Line article for the stops of the through trains to Namba between Namba and Nakamozu.

Rolling stock

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
Semboku 9300 series four-car EMUs with stainless steel bodies (since 8 August 2023)

Former rolling stock

Semboku 100 series

History

The section from Nakamozu to Izumigaoka opened on 1 April 1971 as the Semboku Rapid Railway Line (泉北高速鉄道線, Senboku Kōsoku Tetsudō-sen), with 1,067 mm (3 ft 6 in) double track and electrification 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.

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 took place on 1 April 2025. In addition, the line was renamed to the Semboku Line. Stations were renumbered to NK88 at Fukai through NK92 at Izumi-Chūō.