DFZ 632

IFA
DFZ 632 at Bautzen Airfield (2016)
DFZ 632
Manufacturer:	VEB Kleinschlepper Pomßen VEB Oberlausitzer Stahl- und Fahrzeugbau Georgewitz-Bellwitz
Sales designation:	DFZ 322 DFZ 632
Production period:	1965 / 68-1989
Engines:	V2 and V4 diesel engines
Traction:	up to 11.8 kN
Length:	2900 mm
Width:	1100 mm
Height:	2000 mm
Wheelbase:	1480 mm
Gauge:	850 mm
Turning radius:	2400 mm
Standard tires:	front: 21 × 4 rear: 6.50-16
Top speed:	28 km / h
Maximum permissible total mass:	1950 kg
Empty weight:	1600 kg
Previous model:	Small tractor S 3
Successor:	none

The DFZ 632 is an industrial tractor that was mass-produced in the German Democratic Republic between 1965 and 1989. The machines were used in internal traffic at various companies, but were also in service with the National People's Army , the Deutsche Reichsbahn , the post office and in mining. They could be equipped as forklifts and, depending on their equipment, were approved for trailer loads of up to 11 tons despite their small size. A version with a weaker V2 diesel engine was built under the designation DFZ 322 . In the vernacular of the GDR, the vehicles were known as Pomßen tugs , derived from their first production site in Pomßen near Leipzig.

Vehicle history

Modified Pomßen tractor at a classic car meeting (2018)

In the "tug of war" against a Soviet T-100 caterpillar (2018)

Side view, the cabin cladding is not completely original (2018)

The DFZ 632 had already been preceded by other small tugs for similar tasks from GDR production. These included types S1 , S2 and S3, which were manufactured by Brandiser Maschinen- und Apparatebau KG . The Picco I dumper, for example, also came from this factory . Information about when series production of the DFZ 632 began fluctuates. While some sources cite 1965 as the first year of series production, others state that development began in 1965 and that series production did not begin until 1968. Manufacturer was initially the VEB small tractor Pomßen in Pomßen, first in the 1980s, production was completely the VEB Oberlausitzer steel construction and vehicle Joke George Bell joke in the near Löbau lying Municipality George joke -Bellwitz laid. At this point in time, both companies were already subordinate to the Robur works in Zittau and thus also belonged to the Vehicle Construction Association (IFA). The designation DFZ in the vehicle name stands for diesel driver's seat tractor .

Various components of the tractor were delivered from other factories in the GDR. The engines came from the Cunewalde engine factory . There were two types of engine: a V2 diesel engine with 800 cc and 15 hp and a V4 diesel engine with 1600 cc and 30 hp. The manual transmission with four forward gears is unsynchronized. The rear axle came from Robur and, apart from the width, was identical to that of the trucks manufactured there . The tank was partly the same as in the Trabant 601 .

The vehicle was redesigned towards the end of the 1960s. The formerly round bonnet was replaced by a square product, also made of GRP . The vehicles could be delivered with or without a hood and windshield. Optionally, a lifting mast was attached to the front, to which pallet forks or a snow blade for winter service could be attached. A compressed air brake with a trailer connection was also optional. If the tugs were equipped with one and motorized with 30 HP, the permissible trailer load was 11 tons.

The small tugs were used in many places in the GDR, for example underground at the SDAG Wismut , at train stations for the transport of baggage carts and at the NVA in rear service in depots and for shunting. They were also exported; a large number of the vehicles were used at Havana Airport . About 300 copies were built each year until 1989. The industrial sales price for a DFZ 332 in the basic version was 10,400 marks, for a DFZ 632 12,300 marks. The option list included additional equipment worth around 4,000 marks (compressed air brake, sliding plate, lifting mast and roof).

Technical specifications

For the DFZ 632, values ​​for the DFZ 322 with V2 diesel engine are given in brackets or indicated separately.

• Engine:
  • DFZ 632: V4 diesel engine
  • DFZ 332: V2 diesel engine
• Engine type:
  • DFZ 632: 4 KVD 8/8-SVL
  • DFZ 322: 2 KVD 8/8-SVL
• Power:
  • DFZ 632: 30 HP (22 kW)
  • DFZ 322: 15 HP (11 kW)
• Displacement: 1600 cm³ (800 cm³)
• Bore: 80 mm
• Stroke: 80 mm
• Compression: 20: 1
• Motor weight dry: 178 kg
• Oil consumption: 75 g / h (40 g / h)
• Transmission: mechanical four-speed gearbox with reverse gear
• Top speed: 28 km / h at maximum operating speed
• Brake: hydraulically operated drum brakes
• Drive formula : 4 × 2

Dimensions and weights

• Length: 2900 mm
• Width: 1100 mm
• Height: 2000 mm, also 1970 mm indicated
• Wheelbase: 1480 mm
• Front track: 835 mm
• Rear track: 850 mm
• Turning circle diameter: 4800 mm
• Weight, ready for use: depending on the equipment up to 1620 kg
• Payload: 300 kg
• permissible total weight: 1950 kg
• maximum trailer load: 11,000 kg (4000 kg) with air brake
• Peak pulling force: 11.8 kN (8.3 kN)
• Continuous tensile force: 6.2 kN (3.1 kN)
• Seats: 1

literature

• Christian Suhr, Ralf Weinreich: GDR tractor classics . Weltbild, Augsburg 2011, ISBN 978-3-8289-5414-4 .

Web links

Commons : DFZ 632  - Collection of images, videos and audio files

• Website with further information on the DFZ 632, its history and its technical data

Individual evidence

1. ↑ ^{a b c d e f} Detailed website on both small tugs with contemporary images
2. ^ ^{A b c d e f} Christian Suhr, Ralf Weinreich: GDR tractor classics . P. 110 ff.