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The reference for locomotives and railcars

Altenburg-Zeitz No. 1 to 5

Saxon II

Germany 1872 5 produced
Former number 5 “Rositz” with new number 749 of the Saxon State Railways PD

The Altenburg-Zeitz railway company was founded in 1870 in the Duchy of Saxony-Altenburg to transport lignite from the Meuselwitz-Rositz mining area. In addition to transporting the lignite, passenger transport and other freight transport also had to be handled. For this reason, locomotives had to be procured that could handle both freight and passenger transport for the small company.

The five locomotives purchased by Borsig for this purpose had 1,525 mm coupling wheels and a leading axle mounted fixed in the frame. Other features included inside valve gear and a rudimentary cab. Between 1880 and 1888, five more tank and tender locomotives were procured. When the Altenburg-Zeitz railway company was nationalized in 1896, all machines were taken over. The numbers 1 to 5 were classified in the Saxon type II and provided with the numbers 745 to 749. The last three units survived until 1922 and were not given new numbers by the Reichsbahn.

Technical data

General

Built
1872, 1875
Manufacturers
Borsig
Wheel arrangement
2-4-0 (Porter)
Gauge
1,435 mm (Standard gauge)

Dimensions and weights

Length
14.21 m
Wheelbase
3.29 m
Empty mass
29.5 t
Service mass
33.5 t
Adhesion mass
24.4 t
Rigid wheelbase
3.29 m
Axle load
12.2 t

Boiler

Grate area
1.5 m²
Firebox surface
7.3 m²
Tube heating surface
104.7 m²
Evaporative heating surface
112 m²
Total heating surface
112.0 m²

Power plant

Driver diameter
1,525 mm
Boiler pressure
8.5 bar
Expansion type
simple expansion
Cylinders
two, 432 x 560 mm

Power

Power source
steam
Estimated power
275 kW (374 PS)
Starting effort
49.5 kN

Calculated values

Factor of adhesion
1 : 4.83
Optimal speed
34 km/h
Power-to-weight ratio
8.2 kW/t
Heating Surface Equivalent
148.5 m²
Cylinder volume/HSE
1 : 1,105.48
Adhesive weight/Total
1 : 1.37
Tractive force/Heating surface
1 : 9.23
Grate area/Heating surface
1 : 74.67
Firebox/Tube surface
1 : 14.34
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