The is an electric multiple unit (EMU) train type operated by the private railway operator Seibu Railway on commuter services in the Tokyo area of Japan since March 1994.西武9000系
Design The 9000 series trains were built between 1993 and 1999 at Seibu's own Tokorozawa Factory by combining electrical equipment from former 101 series EMUs with new steel bodies based on the New 2000 series design. These were the last trains to be built at the Tokorozawa Factory before it closed in 2000.
Fleet , the fleet consists of eight 10-car sets, numbered 9101 to 9108, based at Musashigaoka depot for use on Seibu Ikebukuro Line workings.
Formations
10-car sets 10-car sets were formed as shown below with six motored ("M") cars and four non-powered trailer ("T") cars.
Car No. 1 2 3 4 5 6 7 8 9 10 Designation Tc1 M1 M2 T1 M3 M4 T2 M5 M6 Tc2 Numbering 9100 9200 9300 9400 9500 9600 9700 9800 9900 9000 Cars 2, 5, and 8 were each equipped with one single-arm pantograph.
4-car sets The train sets were shortened following the transfer to the Tamako Line. Car No. 1 2 9 10 Designation Tc1 M1 M2 Tc2 Numbering 9100 9200 9900 9000
Car 2 is equipped with one single-arm pantograph.
Fleet list As of 30 September 2026, the fleet was as follows: Set numberDate deliveredDate shortenedDate withdrawn910116 December 1993 -March 20189102October 1994August 2020 -9103June 1995December 2020 -9104March 1996February 2021 -9105December 1996June 2020 -9106March 1997 -October 20179107March 1998 -March 20189108August 1998April 2020 -
Interior Seating consists of longitudinal bench seating throughout. Wheelchair spaces are provided in cars 2 and 9. Priority seats are provided at the end of each car.
History The first train entered service in 1994, with eight 10-car sets built by 1999. The fleet was refurbished between 2004 and 2008, with new underframe equipment and VVVF inverter control. Refurbished sets are identified by stickers on the cab end doors.
Tamako Line transfer
Beginning in 2020, the 9000 series fleet was shortened to four-car formations and modified to accommodate driver-only operation for use on the Tamako Line. The first of these sets was set 9108, which entered service on the Tamako Line on 1 October 2020. the entire fleet has been modified for Tamako Line operation, excluding sets 9101, 9106, and 9107, which were scrapped beforehand.
Livery variations "Red Lucky Train"
From July 2014, set 9103 was repainted in a "Red Lucky Train" livery in collaboration with the private railway operator Keikyu. In return, Keikyu painted one of its own N1000 series sets into an all-over yellow livery similar to the Seibu livery in May 2014. Set 9103 was repainted in an all-over red livery after it was modified for Tamako Line operation.
"L-train"
From 17 January 2016, set 9108 operated in a special "L-train" livery consisting of the Saitama Seibu Lions baseball team colour of dark blue with Seibu Lions logos. The set's Seibu Lions logos were removed following its modification for use on the Tamako Line.
"Seibu KPP Train"
From 4 June 2016, set 9101 operated in a special "Seibu KPP Train" pink livery to mark the 100th anniversary of Seibu Railway in 2015 and the fifth anniversary of singer Kyary Pamyu Pamyu. The train operated in this livery until 29 September 2016, after which date the Kyary Pamyu Pamyu vinyls were removed, with the trainset operating in all-over pink livery. Set 9101 was withdrawn in March 2018.
References
External links
Seibu 9000 series train information