Keio 6000 series

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Keio 6000 series
Set 6416 in November 2009
In service	1972–2011
Entered service	23 May 1972
Number built	304 vehicles
Number in service	None
Number preserved	1 vehicle, 2 cab ends
Number scrapped	301 vehicles
Formation	2/3/4/5/6/8 cars per trainset
Operators	Keio Corporation
Lines served	KO Keiō Line KO Keiō New Line KO Keiō Dōbutsuen Line KO Keiō Sagamihara Line KO Keiō Takao Line KO Keiō Keibajō Line S Toei Shinjuku Line
Specifications
Car body construction	Steel
Car length	20 m (65 ft 7 in)
Maximum speed	110 km/h (68 mph)
Traction system	Resistor control Field chopper control
Acceleration	2.5 km/(h⋅s) (1.6 mph/s) (3.3 km/(h⋅s) (2.1 mph/s) for 6030 series on Shinjuku Line)
Deceleration	4.0 km/(h⋅s) (2.5 mph/s) 4.5 km/(h⋅s) (2.8 mph/s) (emergency)
Electric system(s)	1,500 V DC
Current collector(s)	Overhead
Multiple working	9000 series, 7000 series
Track gauge	1,372 mm (4 ft 6 in)

The Keio 6000 series (京王6000系, Keiō 6000-kei) was an electric multiple unit (EMU) train type in Japan, operated by Keio Corporation on its suburban Tokyo commuter rail network between 1972 and 2011. It was the first rolling stock in Keio's history with 20 m (65 ft 7 in) long cars with four pairs of doors per car side. Sets were refurbished from 1986 to extend their service life.

A four-car formation was used on the Keio Dobutsuen Line as a wanman driver-only-operated shuttle service.