Keio 8000 series
Japanese electric multiple unit train type
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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.
| Keio 8000 series | |
|---|---|
 10-car set 8712 in November 2021 | |
| In service | 1992 – Present |
| Manufacturers | Nippon Sharyo, Tokyu Car Corporation |
| Replaced | 5000 series |
| Constructed | 1992 – 1999, 2009 |
| Entered service | 11 May 1992 |
| Refurbished |
|
| Number built | 245 cars (41 sets + 1 car) |
| Number in service | 244 cars (27 sets) |
| Number scrapped | 1 car (8728(I), accident damage) |
| Formation |
|
| Fleet numbers |
|
| Capacity | 143 (end cars) 154/155 (intermediate cars) |
| Operator | Keio Corporation |
| Depots | Wakabadai, Takahatafudō |
| Line served |  Keio Line |
| Specifications | |
| Car body construction | Ivory painted steel (cab ends) Stainless steel (body) |
| Car length |
|
| Width |
|
| Height | 4,055 mm (13 ft 3.6 in) (car without pantograph) 4,100 mm (13 ft 5 in) (car with pantograph) |
| Entry | Level |
| Doors | 4 pairs of sliding doors per side |
| Wheel diameter | 860 mm (34 in)[1] |
| Wheelbase | 2,200 mm (87 in) (motored bogie) 2,100 mm (83 in) (trailer bogie)[1] |
| Maximum speed |
|
| Weight |
|
| Traction system | GTO-VVVF |
| Power output | 150 kW (200 hp) per motor |
| Acceleration | 3.3 km/(h⋅s) (2.1 mph/s) (after high acceleration modification) 2.5 km/(h⋅s) (1.6 mph/s) (as built) |
| Deceleration | 3.5 km/(h⋅s) (2.2 mph/s) (full-service braking) 4.0 km/(h⋅s) (2.5 mph/s) (emergency braking) |
| Electric system | 1,500 V DC overhead catenary |
| Current collection | Pantograph |
| Bogies | |
| Braking system | Electronically controlled pneumatic brakes with regenerative braking |
| Safety system | Keio ATC |
| Coupling system | Shibata |
| Headlight type | Sealed beam |
| Seating | Longitudinal |
| Track gauge | 1,372 mm (4 ft 6 in) |
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[citation needed]) speedometer. TNS (Train Navigation System).
- Acceleration: 4 notch
- Deceleration: 7 notch + emergency
Formations
As of 1 April 2015[update], 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 |
| 8714 | 8014 | 8064 | 8114 | 8164 | 8514 | 8564 | 8214 | 8264 | 8864 | ||
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
Interior of car in original condition
Priority seats of car in original condition
Interior of a refurbished car
Priority seats of a refurbished car
Interior of a renewal car
Priority seats of a renewal car
Driver's cab
Driver's cab with analog speedometer
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]
Set 8713 in special all-over green livery in November 2021
