KiHa 122 series

The KiHa 122 series (キハ122系, Kiha-122-kei) and KiHa 127 series (キハ127系, Kiha-127-kei) are diesel multiple unit (DMU) train types operated by West Japan Railway Company (JR-West) on the Kishin Line between Himeji and Kōzuki. A total of 19 cars have been delivered, formed as seven single-car KiHa 122 series units and six two-car KiHa 127 series units. Test-running commenced in late September 2008, with the units entering revenue-earning service from the start of the revised timetable on 14 March 2009.

KiHa 122/127 series
KiHa 127 series 2-car DMU near Oichi Station in September 2019
ManufacturerNiigata Transys
Constructed2008–2009
Entered service2009
Number built
  • 19 vehicles
    • 7 × KiHa 122
    • 6 × KiHa 127
Number in service19 vehicles
Formation
  • KiHa 122: Single car unit
  • KiHa 127: 2 cars per unit
Capacity
  • KiHa 122: 113 (33 seated)
  • KiHa 127: 268 (92 seated)
OperatorsJR-West
DepotsHimeji
Lines served Kishin Line
Specifications
Car body constructionStainless steel
Car length
  • KiHa 122: 20,440 mm (67 ft 1 in)
  • KiHa 127: 20,270 mm (66 ft 6 in)
Width2,900 mm (9 ft 6 in)
Height4,040 mm (13 ft 3 in)
DoorsTwo pairs per side
Maximum speed100 km/h (62 mph)
Prime mover(s)SA6D140HE-2
Power outputPer engine: 331 kW (444 hp) at 2,100 rpm
TransmissionHydraulic
HVACWAU707 ×2
BogiesWDT65 (driving), WTR248 (trailing)
Braking system(s)Engine brake, electronically controlled pneumatic brakes
Safety system(s)ATS-SW
Track gauge1,067 mm (3 ft 6 in)
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