Pre-series set S201 and S101 on a test run in July 2015
|Entered service||23 December 2017|
|Number built||48 vehicles (8 sets)|
|Formation||9+3 cars per trainset|
|Fleet numbers||S101–, S201–|
|Capacity||686 (656 standard + 30 Green)|
|Car body construction||Aluminium alloy|
|Car length||20,000 mm (65 ft 7 in) (intermediate cars)
21,000 mm (68 ft 11 in) (end cars)
|Width||2,920 mm (9 ft 7 in)|
|Height||3,540 mm (11 ft 7 in)|
|Floor height||1,130 mm (3 ft 8 in)|
|Doors||One per side|
|Maximum speed||130 km/h (80 mph)|
|Traction system||Variable frequency (IGBT)|
|Electric system(s)||1,500 V DC|
|Current collection method||PS39 single-arm pantographs|
|Bogies||DT81, DT82 (motored), TR265 (trailer)|
|Safety system(s)||ATS-P, ATS-PS|
|Track gauge||1,067 mm (3 ft 6 in)|
The E353 series (E353系) is a DC tilting electric multiple unit (EMU) train operated by East Japan Railway Company (JR East) in Japan on limited express services on the Chuo Main Line since December 2017.
A pre-series train, consisting of one nine-car set and one three-car set, was delivered in July 2015 for performance testing. The trains will ultimately replace the E351 series EMUs used on Super Azusa limited express services on the Chuo Main Line between Shinjuku in Tokyo and Matsumoto in Nagano Prefecture. Originally intended to enter revenue service in spring 2016, the first trains entered service on 23 December 2017.
The exterior styling was overseen by the industrial design firm Ken Okuyama Design. Like the E351 series trains which they are scheduled to replace, the new E353 series trains incorporate tilting technology to allow faster speeds around curves. The trains use a pneumatic tilt system (instead of the pendulum system used in the older trains) and an active suspension to reduce tilt times and help reduce motion sickness in passengers. The train features a database of curves along the line, allowing the train to begin tilting before reaching the curve. The pre-series train also had dampers installed between the cars to reduce vibrations, but this feature was discontinued on the subsequent production trainsets. Maximum operating speed will be 130 km/h (80 mph). To reduce any step up from station platforms, the train floor height is 1,130 mm (3 ft 8 in), 10 mm lower than on E259 series and E657 series trains.
The trains use bolsterless bogies developed from those used on earlier E259 series and E657 series trains. Motored bogies with capability for retrofitting anti-oscillation equipment (rear bogies on car 1 and 3) are designated DT81, motored bogies equipped anti-roll devices (cars 2, 5, 7, and 10) are designated DT82, and motor bogies not equipped with either (cars 6 and 11) are designated DT81A. Non-powered (trailer) bogies are designated TR265, and are equipped with a parking brake and capability for retrofitting anti-oscillation equipment, but those not equipped with a parking brake (rear bogies on cars 4 and 14, and both bogies on car 9) are designated TR265A, and those on car 8, which not equipped with either are designated TR265B.
|Numbering||KuMoHa E353||MoHa E353-1000||KuMoHa E352||KuHa E353||MoHa E353-500||MoHa E352-500||MoHa E353-2000||SaHa E353||SaRo E353||MoHa E353||MoHa E352||KuHa E352|
|Capacity||46[* 1]||46||58[* 2]||48||66[* 3]||64||66[* 3]||64||30||64[* 4]||64||58[* 2]|
- 48 on pre-series set
- 60 on pre-series set
- 68 on pre-series set
- 66 on pre-series set
Green car (first class) accommodation is in 2+2 abreast configuration with a seat pitch of 1,160 mm (46 in). The wine red seat covers are intended to create subdued atmosphere. Standard class is also arranged 2+2 with a seat pitch of 960 mm (38 in), compared to 970 mm (38 in) for Super Azusa E351 series trains. The pale blue seat covers are intended to evoke images of the Azusa River, after which the train service was named. AC power outlets are provided at each seat. The trains include universal access toilets and security cameras. LED lighting is used on these trains, for the first time on JR East limited express rolling stock.
While not initially included in the pre-series train, luggage racks are installed in cars 1, 3, 5, 7, 9, 10, and 12.
Inside, the floors feature rubber coverings to reduce the noise of footsteps. Individual seat numbers are written in braille and each seat has an individual air diffuser for passenger comfort. The cars also feature air purifiers using ozone to reduce unpleasant odors.
Cars 1, 2, 4, 6, 8, 9, and 11 have toilet facilities as follows.
|Car No.||Urinal||Western-style WC||Universal-access WC||Washroom|
Details of the new trains on order were first officially announced by JR East in February 2014.
The first trainset, consisting of one nine-car and one three-car set, was delivered from the Japan Transport Engineering Company (J-TREC) factory in Yokohama to Matsumoto Depot in July 2015. Mainline test running started on 29 July 2015. The pre-series train was formally shown off to the media on 2 August 2015.
In October 2017, JR East announced that the first trains would enter revenue service on Super Azusa services from 23 December 2017, by which date three pairs of (9+3-car) trainsets would be available.
By March 2018, all Super Azusa services will be operated by E353 series trains, and over the following two years, the E257 series trainsets used on Azusa and Kaiji services are also scheduled to be replaced by E353 series trains.
The manufacturer and delivery dates for the fleet are as shown below.
|Set No.||Manufacturer||Date delivered|
|S101||J-TREC||29 July 2015|
|S201||J-TREC||29 July 2015|
- "中央線新型特急電車（E353系）量産先行車新造について" [Details of new pre-series E353 series limited express trains for Chuo Line]. Tetsudo Hobidas (in Japanese). Japan: Neko Publishing. 4 February 2014. Retrieved 4 February 2014.
- Saito, Masatoshi (4 February 2014). 中央線特急:「スーパーあずさ」後継に「Ｅ３５３系」 [E353 series - the successor for Chuo Line "Super Azusa" limited express services]. Mainichi Shimbun (in Japanese). Japan: The Mainichi Newspapers. Archived from the original on 22 February 2014. Retrieved 14 September 2016.
- E353系が営業運転を開始 [E353 series enters revenue service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 23 December 2017. Archived from the original on 25 December 2017. Retrieved 25 December 2017.
- "中央線新型特急「E353系」量産先行車新造へ－2015年夏以降に完成" [Pre-series E353 series limited express to be built for Chuo Line]. Hachioji Keizai Shimbun (in Japanese). Japan: Factory ZIAS G.K. 4 February 2014. Retrieved 4 February 2014.
- E353系 営業開始 [E353 series to enter revenue service]. Japan Railfan Magazine (in Japanese). Vol. 58 no. 681. Japan: Koyusha Co., Ltd. January 2018. p. 50-51.
- Ishida, Toshiyuki (December 2015). E353系特急形直流電車 [E353 series limited express DC EMU]. Japan Railfan Magazine (in Japanese). Vol. 55 no. 656. Japan: Koyusha Co., Ltd. pp. 46–53.
- Watanabe, Ryutaro (February 2018). E353系量産車 [E353 series full-production sets]. Japan Railfan Magazine (in Japanese). Vol. 58 no. 682. Japan: Koyusha Co., Ltd. pp. 42–48.
- Kondo, Takashi (2 August 2015). スーパーあずさ：デザインもフェラーリ風？ 新型電車公開 [New Super Azusa unveiled - Design also Ferrari-style?]. Mainichi Shimbun (in Japanese). Japan: The Mainichi Newspapers. Archived from the original on 3 August 2015. Retrieved 14 September 2016.
- E353系量産先行車 [E353 series pre-series train]. Japan Railfan Magazine (in Japanese). Vol. 55 no. 654. Japan: Koyusha Co., Ltd. October 2015. pp. 10–17.
- Japan Railway Journal- New Generation Express: Journey to Speed and Comfortability. NHK. 2016. Event occurs at 6:30. Retrieved June 21, 2016.[dead link]
- 甲種鉄道車両輸送計画表 [Rolling stock delivery schedules]. Tetsudō Daiya Jōhō Magazine (in Japanese). Vol. 44 no. 376. Japan: Kotsu Shimbun. August 2015. p. 128.
- E353系の試運転が始まる [E353 series test running starts]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 30 July 2015. Archived from the original on 6 September 2017. Retrieved 22 November 2017.
- E353系の試運転が行なわれる [E353 series test-run]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 25 June 2017. Archived from the original on 26 June 2017. Retrieved 26 June 2017.
- 来年３月に現行車両「Ｅ３５１系」引退 スーパーあずさ、新型に [E351 series to be retired by next spring with new trains for "Super Azusa" services]. Sankei Photo (in Japanese). Japan: The Sankei Shimbun & Sankei Digital. 29 October 2017. Archived from the original on 22 November 2017. Retrieved 22 November 2017.
- JR電車編成表 2017夏 [JR EMU Formations - Summer 2017] (in Japanese). Japan: Kotsu Shimbunsha. 18 May 2017. p. 102. ISBN 978-4-330-78717-6.
- E353系S102編成+S202編成が登場 [E353 series sets S102 and S202 delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 13 October 2017. Archived from the original on 22 November 2017. Retrieved 22 November 2017.
- E353系S103編成+S203編成が登場 [E353 series sets S103 and S203 delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 8 November 2017. Archived from the original on 22 November 2017. Retrieved 22 November 2017.
|Wikimedia Commons has media related to JR East E353.|
- JR East press release announcing new trains (in Japanese)
- E353 series design details on Ken Okuyama Design website (in Japanese)