Keio 8000 series
Keio 8000 series
10-car set 8712 in November 2021
In service1992 – Present
ManufacturerNippon Sharyo, Tokyu Car Corporation
Replaced5000 series
Constructed1992 – 1999, 2009
Entered service11 May 1992
Refurbished
  • 2013 – 2019 (merging of 4-car and 6-car sets)
  • 2013 – Present (traction system replacement)
Number built245 cars (41 sets + 1 car)
Number in service244 cars (27 sets)
Number scrapped1 car (8728(I), accident damage)
Formation
  • 8/10 cars per trainset (present)
  • 4/6/8 cars per trainset (as built)
Fleet numbers
  • 8701 – 8714 (10-car sets)
  • 8721 – 8733 (8-car sets)
  • Previously:
  • 8701 – 8714 (6-car sets)
  • 8801 – 8814 (4-car sets)
Capacity143 (end cars)
154/155 (intermediate cars)
OperatorsKeio Corporation
DepotsWakabadai, Takahatafudō
Lines servedKO Keio Line
Specifications
Car body constructionIvory painted steel (cab ends)
Stainless steel (body)
Car length
  • 20,000 mm (65 ft 7 in) (full length)
  • 19,500 mm (64 ft 0 in) (body length)
Width
  • 2,845 mm (9 ft 4.0 in) (full width)
  • 2,770 mm (9 ft 1 in) (body width)
Height4,055 mm (13 ft 3.6 in) (car without pantograph)
4,100 mm (13 ft 5 in) (car with pantograph)
EntryLevel
Doors4 pairs of sliding doors per side
Wheel diameter860 mm (34 in)[1]
Wheelbase2,200 mm (87 in) (motored bogie)
2,100 mm (83 in) (trailer bogie)[1]
Maximum speed
  • 110 km/h (68 mph) (service)
  • 120 km/h (75 mph) (design)
Weight
  • 131 t (129 long tons; 144 short tons)(4-car sets)
  • 204 t (201 long tons; 225 short tons) (6-car sets)
  • 259 t (255 long tons; 285 short tons) (8-car sets)
Traction systemGTO-VVVF
Power output150 kW (200 hp) per motor
Acceleration3.3 km/(h⋅s) (2.1 mph/s) (after high acceleration modification)
2.5 km/(h⋅s) (1.6 mph/s) (as built)
Deceleration3.5 km/(h⋅s) (2.2 mph/s) (full-service braking)
4.0 km/(h⋅s) (2.5 mph/s) (emergency braking)
Electric system(s)1,500 V DC overhead catenary
Current collector(s)Pantograph
Bogies
  • TS-823A/TS-824[1]
  • TS-1017/TS-1018 (sets 8732 and 8733 only)[1]
Braking system(s)Electronically controlled pneumatic brakes with regenerative braking
Safety system(s)Keio ATC
Coupling systemShibata
Headlight typeSealed beam
Track gauge1,372 mm (4 ft 6 in)
SeatingLongitudinal

The Keio 8000 series (京王8000系) is an electric multiple unit (EMU) train type operated by the private railway operator Keio Corporation on commuter services in the Tokyo area of Japan since 1992.

Technical details

  • MT ratio
    • 0 subseries: 10-car set: 6M4T (six motor cars and four trailer cars; each motor car has four motors)
    • 20 subseries: eight-car set: 4M4T
  • Motor output: 150 kilowatts (200 hp)
  • Gear ratio: 6.07
  • Drive mechanism: Parallel cardan
  • Traction control system: GTO-VVVF
  • Headlights: Sealed beam
  • Destination indicators: roller-blind or 3-color LED
  • Passenger information displays: 3-color LED (4 per car)
  • Seating arrangement (intermediate cars): 4-7-7-7-4 on longitudinal bench seats

Body

The body is stainless steel. The front is steel.

Driver's cab

"T" shape one handle master-controller system. Analog (formerly digital) speedometer. TNS (Train Navigation System).

  • Acceleration: 4 notch
  • Deceleration: 7 notch + emergency

Formations

As of 1 April 2015, the fleet consists of 14 ten-car sets and 13 eight-car sets (244 vehicles in total), formed as follows.[2]

  • c=Driver's cab; T=trailer, M=motor

0-subseries ten-car sets

← Shinjuku
Keio-Hachiōji →
Designation Tc M M M M T   T M M Tc
Numbering 8701
 :
8713		8001
 :
8013		8051
 :
8063		8101
 :
8113		8151
 :
8163		8751
 :
8763		 +8801
 :
8813		8201
 :
8213		8251
 :
8263		8851
 :
8863
8714801480648114816485148564821482648864

20-subseries eight-car sets

← Shinjuku
Keio-Hachiōji →
Designation Tc M M T T M M Tc
Capacity (total) 143 155 154 143
Numbering 8721
:
8733		8021
:
8033		8071
:
8083		8521
:
8533		8571
:
8583		8121
:
8133		8171
:
8183		8771
:
8783

Interior

History

The first 8000 series trains were introduced in 1992.[3]

Six-car and four-cars sets (and occasionally a pair of four-car sets) used to be operated on splitting services which separated and re-joined at Takahatafudō Station until 2006. From 2013 to 2019, all six- and four-car 0-subseries sets underwent a refurbishment program. Among several technical upgrades, the cabs of the two inner ends were removed to form 10-car sets.[3]

The 8000 series trains are used exclusively on Keio Corporation lines. Thus, unlike some other Keio trains, they do not continue past Shinjuku on to the Toei Shinjuku Line.

Set 8705F was involved on the October 2021 Tokyo attack.

Special liveries

Set 8713 received a special all-over green livery in September 2009 evoking the livery carried by the former 2000 series trains.[4]

References

Wikimedia Commons has media related to Keio 8000 series.
  1. 1 2 3 4 "TS-823A TS-824 ／ 京王電鉄8000系｜台車近影｜鉄道ホビダス" [TS-823A TS-824 / Keio Electric Railway 8000 series]. rail.hobidas.com (in Japanese). Archived from the original on 17 April 2015. Retrieved 7 October 2021.
  2. ↑ 私鉄車両編成表 私鉄車両編成表 2015 [Private Railway Rolling Stock Formations - 2015] (in Japanese). Japan: Kotsu Shimbunsha. 23 July 2015. ISBN 978-4-330-58415-7.
  3. 1 2 私鉄車両年鑑 2013: 大手15社営業用車両完全網羅 私鉄車両年鑑2013 [Japan Private Railways Annual 2013] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. 20 March 2013. p. 153. ISBN 978-4-86320-693-9.
  4. ↑ 高尾山をイメージしたラッピング車両を運行 [Train to run with wrapping livery with Mt Takao theme] (PDF). News release (in Japanese). Japan: Keio Corporation. 24 September 2015. Archived (PDF) from the original on 6 October 2017. Retrieved 6 October 2017.
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