Osaka Municipal Subway New 20 series

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Osaka Municipal Subway New 20 series
In service1990–present
ManufacturerAlna Kōki, Hitachi, Kawasaki Heavy Industries, Kinki Sharyo, Nippon Sharyo, Tokyu Car Corporation
Replaced
Constructed1990–1998
Refurbished2011–
Number built572 vehicles
Number in service572 vehicles
Formation10 cars per trainset (21 series)
6 cars per trainset (22/23/24/OTS series)
4 cars per trainset (25 series)
Operator(s)Osaka Municipal Subway (1990-2018)
Osaka Metro(2018-)
Depot(s)Nakamozu (21 series)
Dainichi (22 series)
Midorigi (23 series)
Morinomiya (24/25/OTS series)
Line(s) served
Specifications
Car body constructionStainless steel
Train length187,400 mm (614.8 ft) (21 series)
112,600 mm (369.4 ft) (22/23/24/OTS series)
75,200 mm (246.7 ft) (25 series)
Car length18,900 mm (62 ft 0 in) (end cars)
18,700 mm (61 ft 4 in) (intermediate cars)
Width2,890 mm (9 ft 6 in) (end cars)
2,880 mm (9 ft 5 in) (intermediate cars)
Height3,745 mm (12 ft 3 in)
Doors4 pairs of sliding doors per side
Maximum speed95 km/h (60 mph) (24 series; Kintetsu Keihanna Line)
70 km/h (45 mph) (other series)
Traction systemVariable-frequency
Traction motorsFour 140 kW (190 hp) traction motors per motor car
Power output560 kW (750 hp) per motor car
Acceleration3.0 km/h/s (21/24 series)
2.5 km/h/s (other series)
Deceleration3.5 km/h/s (4.5 km/h/s emergency)
Electric system(s)750 V DC
Current collection methodThird rail contact shoes
Braking system(s)Electric commanding brake with regenerative brake
Safety system(s)WS-ATC (21/22/23/24/OTS series)
WS-ATC, CS-ATC, ATO (25 series)
Track gauge1,435 mm (4 ft 8+1⁄2 in)

The Osaka Municipal Subway New 20 series (大阪市交通局新20系) is a rapid transit electric multiple unit (EMU) train type operated by Osaka Municipal Subway in Japan since 1990.

Variants[]

  •   21 series: 10-car sets used on the Midōsuji Line and the Kita-Osaka Kyuko Railway Namboku Line
  •   22 series: 6-car sets used on the Tanimachi Line
  •   23 series: 6-car sets used on the Yotsubashi Line
  •   24 series: 6-car sets used on the Chūō Line and the Kintetsu Keihanna Line
  •   25 series: 4-car sets used on the Sennichimae Line
  •   OTS series (OTS系): 6-car sets introduced in 1997 on the opening of the Cosmosquare to Osakakō segment of the Chūō Line and owned by Osaka Port Transport System (OTS), transferred to Tanimachi Line in 2006 and rechristened as 22-50 series

  • A 21 series set in February 2006

  • A 22 series set in April 2006

  • A refurbished 23 series set in August 2012

  • A 24 series set in May 2009

  • A 25 series set in July 2011

Formation[]

Trains are formed as follows.[1]

21 series[]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tec2 Ma2 Mb2 T T' Ma1' Tbp Mb1 Ma1 Tec1
Numbering 219xx 212xx 213xx 215xx 218xx 214xx 217xx 211xx 210xx 216xx

Car 6 is designated as a women-only car (Weekday only).

22/23/24/OTS series[]

Car No. 1 2 3 4 5 6
Designation Tec1 Mb1' T' Mb2 Ma2 Tec2
Numbering 2600 2100 2800 2300 2200 2900

22 series car 3 is designated as a women-only car (Rush hour only).

25 series[]

Car No. 1 2 3 4
Designation Tec1 Mb1' Mb2 Tec2
Numbering 256xx 251xx 253xx 259xx

References[]

  1. ^ 私鉄車両編成表 2016 [Private Railway Rolling Stock Formations - 2016] (in Japanese). Japan: Kotsu Shimbunsha. 25 July 2016. pp. 154–156. ISBN 978-4-330-70116-5.
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