Keio 9000 series

Keio 9000 series
8-car set 9702, May 2006
In service	2001–
Manufacturer	Nippon Sharyo, Tokyu Car Corporation
Constructed	2000–2009
Number built	264 cars
Number in service	264 cars
Formation	8/10 cars per trainset
Capacity	141 (end cars), 152 (intermediate cars)
Operator(s)	Keio Corporation
Depot(s)	Takahatafudō and Wakabadai
Specifications
Car body construction	Stainless steel
Car length	20 m (65 ft 7 in)
Width	2,845 mm (9 ft 4 in)
Height	4,100 mm (13 ft 5 in)
Doors	4 pairs per side
Maximum speed	110 km/h (68 mph) on Keio Corporation lines, 75 km/h (47 mph) on Toei Shinjuku Line
Traction system	IGBT-VVVF
Power output	170 kW (228 hp) per traction motor
Acceleration	2.5 km/h/s (on Keio Corporation Line), 3.3 km/h/s (on Toei Shinjuku Line)
Deceleration	4.0 km/h/s (4.5 km/h/s for emergency brake)
Electric system(s)	1,500 V DC
Current collection method	Overhead
Braking system(s)	Electronically controlled pneumatic brakes with regenerative braking
Safety system(s)	ATS, Digital-ATC
Multiple working	Keio 7000 series
Track gauge	1,372 mm (4 ft 6 in)

The Keio 9000 series (京王9000系^?) is an electric multiple unit (EMU) train type in Japan, operated by the private railway operator Keio Corporation since 2001 on the Keio Line and its branches in Tokyo and Kanagawa Prefecture.

The 9000 series 8-car sets are used mainly on the Keio Line, the Takao Line, and the Sagamihara Line. ies sets are mainly used on Local services during daytime. They are also used on 10-car Special Express and Rapid trains. Sets are coupled to 2-car Keio 7000 series sets to form 10-car trains.

The 9030 series 10-car sets are used primarily on inter-running services to and from the Toei Shinjuku Line.

The front end design is based on the design of the Keio 5000 series. The body is stainless steel. Most of the sets were built at Nippon Sharyo but some sets were built at Tokyu Car Corporation. The front portion is made of steel painted ivory white.

The 9030 series sets differ from the earlier 8-car sets in having UV-cutting glass for the wide windows, eliminating the need for roller blinds, and having full-colour LED destination indicator panels.

Exterior destination panel

As of 1 April 2013, the fleet consists of eight 8-car 9000 series sets and twenty 10-car 9030 series sets.

The 8-car 9000 series sets (9701 to 9708) are formed as shown below, with four motored (M) cars and four non-powered trailer (T) cars, and with car 1 at the western end.

The 10-car 9030 series sets (9730 to 9749) are formed as shown below, with five motored (M) cars and five non-powered trailer (T) cars, and with car 1 at the western end.