The Hatz 1B50 is a 517 cc, (31.5 cu-in) single-cylinder air-cooled 4-stroke internal combustion diesel engine with a horizontal shaft, manufactured by Motorenfabrik Hatz GmbH & Co. KG for general-purpose applications.
This engine has a single-cylinder, overhead valves, and direct injection fuel system. The Hatz 1B50 engine can be equipped with a recoil starter or electric starter motor 12 or 24 Volts.
A 93.0 mm (3.66 in) cylinder bore and 76.0 mm (2.99 in) piston stroke give the 1B50 engine a total of 517 cc, (31.5 cu-in) of displacement. The compression ratio is 20.5:1. It produced from 55.7 PS (4.2 kW; 5.6 HP) at 1,500 rpm to 11.6 PS (8.5 kW; 11.4 HP) at 3,600 rpm of maximum output. The torque is 27.4 N·m (2.8 kg·m, 20.2 ft·lb) at 2,500 rpm.
|Type||4-stroke, single cylinder|
|Displacement||517 cm 3 (31.5 cu-in)|
|Max. horsepower||11.6 PS (8.5 kW; 11.4 HP) at 3,600 rpm|
|Max. torque (crank PTO)||27.4 N·m (2.8 kg·m, 20.2 ft·lb) at 2,500 rpm|
|Lubricating system||Forced spray|
|Starting system||Recoil or electric starter motor|
|Fuel used||Diesel fuel|
|Fuel tank capacity||5.0 L (1.32 US. gal. 1.1 Imp. gal.)|
|PTO shaft rotation||Counterclockwise (from PTO shaft side)|
Dimensions and Weight
|Length, mm (in)||348 (13.7)|
|Width, mm (in)||392 (15.4)|
|Height, mm (in)||480 (18.9)|
|Dry weight, kg (lb)||
With recoil starter: 51.2 (112.9)
With electric starter: 56.5 (124.6)
|Maximum speed||3,600 ± 150 rpm|
|Intake valve||0.10 mm (0.004 in)|
|Exhaust valve||0.10 mm (0.004 in)|
With diesel oxidation catalyst (DOC): ACEA E6
Without diesel oxidation catalyst (DOC): CF/CH-4, ACEA: B3/E4
|Recommended oil||SAE 5W-30, 10W-30|
|Oil capacity||1.5 L (1.59 US. qt, 1.32 Imp. qt.)|
We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.
Hi, It would be very useful if you could include the dimensions for the output/PTO shafts
for these engines. I’m interested in the Hatz 1B50. Thanks. Michael.