Kirovets K-700

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Kirovets
Трактор К-700 Сокол гора1.jpg
K-700
Manufacturer: Kirovwerk
Production period: 1962-1975
Engines: V8 diesel engine
Traction: about 50 kN
Length: 7010 mm
Width: 2530 mm
Height: 3450 mm
Wheelbase: 3050 mm
Gauge: 1910 mm
Standard tires: 18-26 AS
Top speed: 31.8 km / h
Empty weight: 11,550 kg
Previous model: none
Successor: Kirovets K-700A

The Kirovets K-700 is an all-wheel drive wheeled tractor from the former Soviet and now Russian manufacturer Kirovets . The tractors were manufactured from 1962, the basic structure was adopted for several successor models. The K-700 was also exported; the Comecon member GDR imported it from 1968.

The Charkow tractor factory built the somewhat smaller T-150K in a similar form from 1972 onwards .

Vehicle history

The K-700 is a heavy all-wheel tractor in the 50 kilonewton class with articulated steering and disengageable rear-wheel drive. The connecting piece of the front and rear frame parts can be moved around the vertical and longitudinal axes, steering is carried out by bending to the side using hydraulics. It is powered by the eight-cylinder JaMZ-238 diesel in a V configuration with an output of 215 hp (158 kW). On July 13, 1962, the first prototype of the K-700 left the factory gate in Leningrad . By the end of the year, Kirovets had built a total of 15 K-700s. In 1963 50 pre-series tractors were produced until large-scale production began on September 14, 1964. In the same year over 1200 K-700 were delivered and over 100,000 K-700 were produced by 1975. The successor was the fundamentally redesigned Kirovets K-700A .

Use in the GDR

The K-700 tractors were reliable, efficient, especially on large, contiguous areas, and easy to handle after getting used to, even if the driver's exposure to noise and vibrations was relatively high. In the GDR, their size was sometimes a hindrance when deployed away from the fields.

Schematic costs of the K-700 depending on the annual utilization
K-700 with typical red paint
K-700 plowing stubble fields. The steering can be clearly seen by changing the angle between the front and rear of the tractor

In 1973 it was estimated in the planned economy in the real socialism of the GDR that compared to the use of the Progress ZT 300 with a K-700, labor productivity could be increased threefold. In order to keep the cost parameters low and to meet the target, the K-700 was indispensable in the GDR plant production for the necessary increase in productivity for the nomenclature. According to Plansoll, at least 1,400 working hours or 1,600 hectares of plowing work per year were necessary in order to make optimal economic use of a K-700 tractor, which would have made it uneconomical to use it on a state- owned estate , since the required area sizes were usually not available there. A two-shift system was necessary for the required 1400 working hours per K-700, since the necessary hour-dependent economic workload per year under GDR conditions could not be achieved in one-shift operation. Around 100,000 marks were estimated for the purchase of a K-700 in 1973  , which resulted in fixed costs of 12,500 marks over a period of eight years. In addition, there were insurance costs of 600 marks a year.

Technical specifications

For the K-700 model.

  • Engine: JaMZ-238A , later JaMZ-238NB
  • Engine type: 8-cylinder four-stroke diesel, direct injection
  • Suction:
    • JaMZ-238A: Free suction
    • JaMZ-238NB: With exhaust gas turbocharging
  • Bore: 130 mm
  • Stroke: 140 mm
  • Displacement: 14,866 cm³
  • Power:
    • YAMZ-238A: 215 hp (158 kW) at 2100 min -1
    • YAMZ-238NB: 215 hp (158 kW) at 1700 min -1
  • Max. Torque:
    • JaMZ-238A: 80 kp · m (785 N · m) at "not more than" 1500 min −1
    • YAMZ-238NB: 95 kgf · m (932 N · m) at 1100 to 1400 min -1
  • Transmission: mechanical, 16 forward gears + 8 reverse gears
  • Forward speed: 2.9–31.8 km / h
  • Reverse speed: 5.1–27.7 km / h
  • Standard tires: 18-26 AS
  • Fuel consumption at nominal power (1700 min −1 ): "not more than" 38 kg / h (JaMZ-238NB)

Dimensions and weights

  • Length: 7010 mm
  • Width: 2530 mm
  • Height: 3450 mm
  • Wheelbase: 3050 mm
  • Track width: 1910 mm
  • Weight: 11,550 kg

literature

Individual evidence

  1. ↑ a b c d Achim Bischof: GDR import tractors. Pp. 52-59.
  2. ↑ Dr. agr. H. Dünnebeil. KOT, VEB Soil cultivation devices Leipzig: Soil cultivation devices of the GDR production and their application in plant production. agrartechnik, Volume 31, Issue 4, Page 182, April 1981.
  3. ↑ Production history on the manufacturer's website (Russian). Retrieved March 3, 2016.
  4. ↑ P. Wissing, A. Kunze: Effective tillage and fertilization - For the economical use of the K-700 . Published in agrartechnik . 23rd year, issue 1, January 1973. Page 2, image 1.
  5. ↑ P. Wissing, A. Kunze: Effective tillage and fertilization - For the economical use of the K-700 . Published in agrartechnik . 23rd year, issue 1, January 1973. Pages 1–4.
  6. ↑ GD Chernyshev (ed.): ДВИГАТЕЛИ ЯМЗ-236, ЯМЗ-238. Verlag "Maschinenbau", Moscow 1968, p. 5.
  7. ↑ a b M. G. Pantjuchin, LI Beswerchniy, NA Beresin, BM Yermakow, AM Sawin, Ju. S. Smirnov, VI Stazewitsch: Трактор "Кировец" К-700. Leningrad Kolos Publishing House, St. Petersburg, 1976, p. 12.
  8. ^ Uwe Miethe: picture atlas of the GDR road traffic. P. 139.

Web links

Commons : K-700  - Collection of pictures, videos and audio files