W7 Series Shinkansen

The W7 series (W7系, Daburu-nana-kei) is a Japanese Shinkansen high-speed train type operated by West Japan Railway Company (JR-West) on the Hokuriku Shinkansen since it was extended from Nagano to Kanazawa in March 2015.[1] Jointly developed alongside the similar JR East E7 series, a total of eleven 12-car W7 series sets (132 vehicles) have been built. The first W7 series train was delivered in April 2014.[2]

W7 series
Set W3 on a public preview run, February 2015
ManufacturerHitachi, Kawasaki Heavy Industries, Kinki Sharyo
Entered service14 March 2015
Number built132 vehicles (11 sets)
Number in service108 vehicles (9 sets)
Number scrapped24 vehicles (2 sets, flood damage)
Formation12 cars per set
Fleet numbersW1–W11
Line(s) servedHokuriku Shinkansen
Car body constructionAluminium alloy
Car length26,000 mm (85 ft 4 in) (end cars)
25,000 mm (82 ft 0 in) (intermediate cars)
Width3,380 mm (11 ft 1 in)
Doors2 sliding doors per side
Maximum speedDesign: 275 km/h (170 mph)
Service: 260 km/h (160 mph)
Weightapprox. 540 t
Power output12 MW
Acceleration1.6 km/h/s
Electric system(s)25 kV AC, 50/60 Hz
Current collection methodOverhead catenary
Safety system(s)DS-ATC, RS-ATC
Track gauge1,435 mm (4 ft 8 12 in) standard gauge


Based on the earlier E2 series trains, the W7 series trains were designed with a "Japanese" theme inside and out, combining futuristic styling with traditional design elements overseen by industrial designer Ken Okuyama together with Kawasaki Heavy Industries.[3] Externally, the roof is finished in a "sky blue" colour, and the bodysides are "ivory white" with "copper" and "sky blue" lining.[4] The bodyside logos consist of a number "7" in silver stylized as an arrowhead, and include the lettering "West Japan Railway Company".[5]

Manufacture of the W7 series sets was shared between Hitachi in Kudamatsu, Yamaguchi, Kawasaki Heavy Industries in Kobe, and Kinki Sharyo in Osaka.[6]

The trains have a maximum design speed of 275 km/h (170 mph),[7] but in service operate at a maximum speed of 260 km/h (160 mph) on the Hokuriku Shinkansen, limited to 240 km/h (150 mph) on the Joetsu Shinkansen tracks between Omiya and Takasaki, and to 110 km/h (70 mph) on the Tōhoku Shinkansen tracks between Tokyo and Omiya.[1] Increased power output enables the trains to maintain speeds of at least 210 km/h (130 mph) on the steep gradients of the Hokuriku Shinkansen.[8]

Car 12 (Gran Class) is equipped with full active suspension, and the other cars are equipped with semi-active suspension.[7]


  • Kagayaki (Tokyo - Kanazawa), since March 2015
  • Hakutaka (Tokyo - Kanazawa), since March 2015
  • Tsurugi (Toyama - Kanazawa), since March 2015
  • Asama (Tokyo - Nagano), since March 2015

Since 14 March 2015, W7 series trainsets are used on Asama, Hakutaka, Kagayaki, and Tsurugi services alongside JR East E7 series trains.[9]


The 12-car sets are numbered "W1" onward, and consist of 10 motored ("M") intermediate cars and two non-powered trailer ("T") end cars, as shown below.[10] Car 11 provides Green car (first class) accommodation, and car 12 provides Gran Class luxury accommodation.

Car No. 123456789101112
Designation TcM2M1M2M1M2M1M2M1M2M1sTsc
Numbering W723-100W726-100W725-100W726-200W725-200W726-300W725-300W726-400W725-400W726-500W715-500W714-500
Weight (t) 41.344.746.145.246.445.246.545.246.445.045.644.5
Capacity 5010085100859058100851006318
Facilities Toilets Toilets, phone Toilets Wheelchair space, universal access toilet, phone Toilets Wheelchair space, universal access toiletToilets

Cars 3 and 7 are each equipped with a single-arm pantograph.[10]


The 12-car trains have accommodation in three levels of service: Gran Class, Green, and ordinary-class cars, with a total seating capacity of 934.[1] Gran Class seating (car 12) is arranged 2+1 abreast with a seat pitch of 1,300 mm (51 in), Green car seating (car 11) is arranged 2+2 abreast with a seat pitch of 1,160 mm (46 in), and ordinary seating (cars 1 to 10) is arranged 3+2 abreast with a seat pitch of 1,040 mm (41 in).[7] AC power outlets are provided for each seat in all three classes.[7] The Gran class seats are supplied by Toyota Boshoku.[11] Car saloons and vestibule areas are equipped with security cameras.[4] Between October and December 2015, luggage racks are scheduled to be added at one end of each of the even-numbered ordinary class cars and also in Green car 11, by removing a pair of seats (1D and 1E). The luggage racks are to cater to the increased number of overseas tourists with suitcases and also passengers with ski and snowboard equipment in the winter season.[12]


In January 2012, the head of JR-West's Kanazawa Division revealed that new trains for the Hokuriku Shinkansen would be developed in conjunction with JR East, and that test running would need to be conducted during the winter season a year before the line opening to thoroughly test the ability of the trains to cope with snowy conditions.[13] Details of the new trains were formally announced jointly by JR East and JR-West on 4 September 2012.[4] The design of the logo to be applied to the sides of cars 1 and 12 was officially unveiled in February 2014.[5]

The first W7 series train was delivered from Kawasaki Heavy Industries in Kobe to Hakusan Depot in Hakusan, Ishikawa in April 2014.[2] Test-running on the Hokuriku Shinkansen began on 5 August 2014, initially at low speed, between Kanazawa and Jōetsumyōkō.[14]

In April 2015, JR West announced that it was ordering an additional W7 series set to be introduced from autumn 2015, replacing the remaining E2 series trainsets used on regularly scheduled Hokuriku Shinkansen Asama services.[15]

In May 2015, the W7 series and JR East E7 series were awarded the 2015 Blue Ribbon Award, presented annually by the Japan Railfan Club.[16] A presentation ceremony was held at JR-West's Hakusan Depot on 24 October 2015.[17]

The W7 series is the first JR-West train type to use the "W" prefix, following the method used by JR East (with an "E" prefix).

Sets W2 and W7 were withdrawn in 2019 following flood damage sustained from Typhoon Hagibis.

Fleet list

As of 1 October 2016, the fleet is as follows.[18]

Set No.ManufacturerDelivery date
W1Kawasaki Heavy Industries30 April 2014
W2Hitachi5 June 2014
W3Kawasaki Heavy Industries30 June 2014
W4Hitachi18 July 2014
W5Kawasaki Heavy Industries21 August 2014
W6Kawasaki Heavy Industries11 September 2014
W7Kinki Sharyo27 September 2014
W8Hitachi15 October 2014
W9Hitachi3 November 2014
W10Kinki Sharyo26 December 2014
W11Hitachi17 September 2015

See also


  1. "E7系・W7系新幹線電車" [E7/W7 series shinkansen EMU]. Japan Railfan Magazine. Vol. 52 no. 619. Japan: Koyusha Co., Ltd. November 2012. pp. 48–49.
  2. W7系、30日に石川初走行 白山車両所 [W7 runs for first time inside Hakusan Depot]. The Hokkoku Shimbun (in Japanese). Japan: The Hokkoku Shimbun. 24 April 2014. Archived from the original on 30 August 2014. Retrieved 27 May 2014.
  3. 北陸路走る 伝統と未来 新幹線デザイン決定 [Hokuriku Shinkansen design announced - tradition and future]. Chunichi Web (in Japanese). Japan: The Chunichi Shimbun. 5 September 2012. Archived from the original on 9 September 2012. Retrieved 18 September 2012.
  4. 北陸新幹線用の新型車両について [New trains for Hokuriku Shinkansen] (PDF). Press release (in Japanese). Japan: JR East & JR-West. 4 September 2012. Retrieved 4 September 2012.
  5. 北陸新幹線用新型車両シンボルマークデザイン決定 [Logo design finalized for new Hokuriku Shinkansen trains] (PDF). News release (in Japanese). Japan: East Japan Railway Company & West Japan Railway Company. 13 February 2014. Retrieved 13 February 2014.
  6. 総合車両製作所、北陸新幹線の車両生産工場増強-60両5編成受注 [J-TREC expands its rolling stock manufacturing facilities for Hokuriku Shinkansen trains, with order for 60 vehicles]. Nikkan Kogyo Shimbun Business Line (in Japanese). Japan: The Nikkan Kogyo Shimbun Ltd. 26 June 2013. Archived from the original on 30 June 2013. Retrieved 3 July 2013.
  7. "E7系新幹線電車" [E7 series shinkansen EMU]. Japan Railfan Magazine (in Japanese). Vol. 54 no. 634. Japan: Koyusha Co., Ltd. February 2014. pp. 9–13.
  8. Saito, Masatoshi (4 September 2012). JR東:北陸新幹線の新型車両「E7系」概要発表 [JR East announces details of new E7 series for Hokuriku Shinkansen]. Mainichi jp (in Japanese). Japan: The Mainichi Newspapers. Retrieved 4 September 2012.
  9. 北陸新幹線 長野~金沢間開業に伴う運行計画の概要について [Outline of service plans for opening of Hokuriku Shinkansen from Nagano to Kanazawa] (PDF). News release (in Japanese). Japan: JR East & JR-West. 27 August 2014. Retrieved 27 August 2014.
  10. "W7系新幹線電車" [W7 series shinkansen EMU]. Japan Railfan Magazine (in Japanese). Vol. 54 no. 638. Japan: Koyusha Co., Ltd. June 2014. p. 67.
  11. トヨタ紡織、鉄道車両用シートを初受注 ~ 北陸新幹線「グランクラス」に採用 ~ [Toyota Boshoku wins first order for train seats - to be used on Hokuriku Shinkansen "Gran Class"]. News Release (in Japanese). Japan: Toyota Boshuku Corporation. 16 April 2013. Retrieved 18 April 2013.
  12. 北陸新幹線E7系・W7系への荷物置場の設置について [Installation of luggage racks on Hokuriku Shinkansen E7/W7 series trains]. News release (in Japanese). Japan: West Japan Railway Company. 3 September 2015. Retrieved 3 September 2015.
  13. 「大幅変更なし」 七尾線など、新幹線開業後も ["No major changes" to Nanao Line and others even after shinkansen route opens]. Ishikawa News (in Japanese). Japan: The Hokkoku Shimbun. 28 January 2012. Archived from the original on 18 June 2013. Retrieved 4 September 2012.
  14. "北陸新幹線金沢~上越妙高間でW7系による走行試験が始まる" [Test-running using W7 series begins on Hokuriku Shinkansen between Kanazawa and Jōetsumyōkō]. Tetsudo Hobidas (in Japanese). Japan: Neko Publishing. 5 August 2014. Retrieved 5 August 2014.
  15. JR西 130億円増収効果 16年3月期予想 秋以降に車両追加 [JR-West forecasts profits of 13 billion yen for March 2016 - Additional train from autumn]. Chunichi Web (in Japanese). Japan: The Chunichi Shimbun. 1 May 2015. Archived from the original on 3 May 2015. Retrieved 8 May 2015.
  16. ブルーリボン賞・ローレル賞 選定車両一覧 [Blue Ribbon Award & Laurel Prize Winner List] (in Japanese). Japan: Japan Railfan Club. 21 May 2015. Archived from the original on 26 October 2010. Retrieved 21 May 2015.
  17. E7系・W7系 ブルーリボン賞を受賞 [E7 and W7 series receive Blue Ribbon Award]. Japan Railfan Magazine (in Japanese). Vol. 56 no. 658. Japan: Koyusha Co., Ltd. February 2016. p. 67.
  18. JR電車編成表 2017冬 [JR EMU Formations - Winter 2017] (in Japanese). Japan: Kotsu Shimbunsha. 16 November 2016. p. 134. ISBN 978-4-330-73716-4.
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