| Keio 8000 series | |
| Imagealt: | Keio 8000 series |
| Service: | 1992 – Present |
| Yearservice: | 11 May 1992 |
| Manufacturer: | Nippon Sharyo, Tokyu Car Corporation |
| Replaced: | 5000 series |
| Yearconstruction: | 1992 – 1999, 2009 |
| Refurbishment: |
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| Numberbuilt: | 245 cars (41 sets + 1 car) |
| Numberservice: | 244 cars (27 sets) |
| Numberscrapped: | 1 car (8728(I), accident damage) |
| Formation: |
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| Fleetnumbers: |
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| Capacity: | 143 (end cars) 154/155 (intermediate cars) |
| Operator: | Keio Corporation |
| Depots: | Wakabadai, Takahatafudō |
| Carbody: | Ivory painted steel (cab ends) Stainless steel (body) |
| Carlength: |
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| Width: |
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| Height: | 4055mm (car without pantograph) 4100mm (car with pantograph) |
| Entrylevelorstep: | Level |
| Doors: | 4 pairs of sliding doors per side |
| Wheeldiameter: | 860mm[1] |
| Wheelbase: | 2200mm (motored bogie) 2100mm (trailer bogie) |
| Maxspeed: |
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| Weight: |
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| Lines: | Keio Line |
| Traction: | GTO-VVVF |
| Poweroutput: | 150kW per motor |
| Acceleration: | 3.3km/h/s (after high acceleration modification) 2.5km/h/s (as built) |
| Deceleration: | 3.5km/h/s (full-service braking) 4km/h/s (emergency braking) |
| Electricsystem: | 1,500 V DC overhead catenary |
| Collectionmethod: | Pantograph |
| Brakes: | Electronically controlled pneumatic brakes with regenerative braking |
| Safety: | Keio ATC |
| Coupling: | Shibata |
| Light: | Sealed beam |
| Seating: | Longitudinal |
The 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.
The body is stainless steel. The front is steel.
"T" shape one handle master-controller system. Analog (formerly digital) speedometer. TNS (Train Navigation System).
, the fleet consists of 14 ten-car sets and 13 eight-car sets (244 vehicles in total), formed as follows.[2]
← Shinjuku Keio-Hachiōji → | |||||||||||||||||||||
| Designation | Tc< | -- 1 --> | M< | -- 1 --> | M< | -- 2 --> | M< | -- 1 --> | M< | -- 2 --> | T< | -- 1 --> | T< | -- 2 --> | M< | -- 1 --> | M< | -- 2 --> | Tc< | -- 2 --> | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ||||||||||||
← Shinjuku Keio-Hachiōji → | ||||||||||||||||
| Designation | Tc< | -- 1 --> | M< | -- 1 --> | M< | -- 2 --> | T< | -- 1 --> | T< | -- 2 --> | M< | -- 1 --> | M< | -- 2 --> | Tc< | -- 2 --> |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Capacity (total) | 143 | 155 | 154 | 143 | ||||||||||||
| Numbering | 8721 : 8733 | 8021 : 8033 | 8071 : 8083 | 8521 : 8533 | 8571 : 8583 | 8121 : 8133 | 8171 : 8183 | 8771 : 8783 | ||||||||
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.
Set 8713 received a special all-over green livery in September 2009 evoking the livery carried by the former 2000 series trains.[4]