KrAZ-257

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KrAZ
KrAZ-257 with multifunctional box body for the military (2015)
KrAZ-257 with multifunctional box body for the military (2015)
KrAZ-257
Manufacturer: KrAZ
Sales designation: КрАЗ-257
Production period: 1965-1995
Previous model: KrAZ-219
Successor: KrAZ-250
Technical specifications
Designs: Platform , chassis for special bodies
Engines: 8 cylinder diesel engine JaMZ-238
Power: 177 kW
Payload: 12 t
Perm. Total weight: 23.4 t

The KrAZ-257 ( Ukrainian КрАЗ-257 ) is a truck made by the Soviet and later Ukrainian manufacturer KrAZ . It was produced from 1965 to 1995 and then replaced by the KrAZ-260 and other types. The vehicle is the predominantly civilian version of the much better known KrAZ-255 .

KrAZ-257 with concrete mixer body at a classic car meeting in Hartmannsdorf (2017)
KrAZ-257 with flatbed structure in a Russian museum (2010)
KrAZ-257 with crane superstructure (2008)

Vehicle history

The similar predecessor model KrAZ-219 had been manufactured since 1959 . Visually, the two trucks initially only differed in that the additional grille in front of the radiator grille and the lamps of the KrAZ-219 were omitted. Later, the front headlights of the KrAZ-257 were housed in their own square sheet metal housings attached to the fenders. In terms of technical changes, it should be mentioned above all that the six-cylinder engine JaAZ-M206A of the KrAZ-219 was replaced by the significantly more powerful eight-cylinder diesel engine JaMZ-238, which was still supplied by the Jaroslawski Motorny Sawod .

The basic version KrAZ-257 was manufactured from 1965 to around 1977. A revised version of the KrAZ-257B has been available since the second half of the 1970s, which differs from the original model mainly through a modified braking system. Occasionally it is also carried under the model name KrAZ-257B1. Production ceased between 1991 and 1995, depending on the source. The KrAZ-250 was planned as the successor, but it was only built until 1992.

There are two similar models, the KrAZ-256B (dump truck) and the KrAZ-258 (tractor unit or tractor unit with ballast).

Technical specifications

For the first generation KrAZ-257.

  • Engine: eight-cylinder four-stroke diesel engine, V8
  • Engine type: JaMZ-238
  • Power: 240 hp (176.5 kW) at 2100 min -1
  • Torque: 883 Nm at 1500 min -1
  • Displacement: 14.86 l
  • Bore: 130.0 mm
  • Stroke: 140.0 mm
  • Compression: 16.5: 1
  • Engine weight: 1070 kg
  • Transmission: mechanical gearbox, 5 forward gears, 1 reverse gear
  • Reduction gear: 2 stages
  • Fuel consumption: 36 l / 100 km
  • Top speed: 70 km / h
  • Starter: Type ST103, 9.5 HP
  • Alternator : 24 V, 500 W.
  • Drive formula : 6 × 4

Dimensions and weights

  • Length: 9660 mm
  • Width: 2650 mm
  • Height: 2620 mm (driver's cab)
  • Wheelbase: 5050 + 1400 mm
  • Height of loading sill: 1520 mm
  • Internal dimensions of the loading area (L × W × H): 5770 × 2480 × 825 mm
  • Front track: 1950 mm
  • Rear track (double tires): 1920 mm
  • Turning circle: 26.4 m
  • Ground clearance: 290 mm
  • Empty weight: 11,130 kg
  • Payload: 12,000 kg
  • permissible total weight: 23,355 kg
  • Front axle load: 4665 kg
  • Rear axle load (double axle): 18,690 kg
  • maximum trailer load: 16,600 kg
  • Tire size: 12.00-20

literature

  • Ministry of Automobile Transport of the RSFSR ; Vehicle Construction Institute NIIAT: Short Automobile Manual (краткий автомобильный справочник). Transport Publishing House, 6th edition, Moscow 1971.
  • LM Shugurov: АВТОМОБИЛИ России и СССР . Second part. Ilbi / Prostreks, Moscow 1994, ISBN 5-87483-006-5 .

Individual evidence

  1. ↑ a b c Ministry of Automobile Transport of the RSFSR ; Vehicle Construction Institute NIIAT: Short Automobile Manual (краткий автомобильный справочник). P. 136 ff.

Web links

Commons : KrAZ-257  - Collection of pictures, videos and audio files