Lanz
Lanz HR4 Bulldog
The Lanz HR4 Bulldog is a standard-tread farm tractor produced by Lanz in Mannheim, Germany from 1928 to 1929. It features a 10.3L single-cylinder liquid-cooled oil engine producing 28 hp, with a 3-speed gear transmission. The tractor is two-wheel drive with manual steering and an open operator station. A total of 180 units were built.
Power-
Founded-
ModelHR4
Technical Specifications
Detailed specifications and technical data for Lanz HR4 Bulldog
Power
| Engine | 28 hp (20.9 kW) |
|---|---|
| Drawbar (claimed) | 22 hp (16.4 kW) |
Engine
| Make | Lanz |
|---|---|
| Type | oil |
| Power | 28 hp (20.9 kW) |
| Cylinders | 1-cylinder |
| Rated RPM | 500 |
| Bore/Stroke | 8.858x10.24 inches (225 x 260 mm) |
| Displacement | 628.5 ci (10.3 L) |
| Cooling system | liquid-cooled, thermosyphon |
Dimensions
| Type | Standard-tread tractor |
|---|
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Type | Standard-tread tractor |
|---|---|
| Built in | Mannheim, Baden-Württemberg, Germany |
| Years made | 1928 - 1929 |
| Total built | 180 |
Transmission
| Type | gear |
|---|---|
| Gears | 3 forward and 1 reverse |
Serial Numbers
| Start year | 1928 |
|---|---|
| Final serial | 75180 |
| Start serial | 75001 |