Minneapolis 12-25 Specs ( 1920-1926 )
Overview
The Minneapolis 12-25 is a kerosene-powered standard-tread farm tractor manufactured in Hopkins, Minnesota, between 1920 and 1926. It is equipped with a 7.3L four-cylinder liquid-cooled engine and a two-speed gear transmission. The machine features an operating weight of 6,400 lbs and 56x12 steel rear wheels.
Ideal Applications
Tested Drawbar Performance:
According to Nebraska Tractor Test 13, the tractor achieved a maximum drawbar pull of 2,852 lbs and a tested drawbar output of 16.26 hp while pulling three 14-inch plows.
Stationary Belt Pulley Specifications:
The unit features a 15-inch diameter belt pulley with a 6.5-inch width that operates at 750 RPM, delivering a tested maximum belt power of 26.24 hp.
Engine and Fuel Configuration:
The 445.3 ci four-cylinder engine is designed for kerosene fuel and utilized a maximum of 4.2 gallons per hour during peak belt power testing.
Production
| Description | Standard-tread tractor / Built in Hopkins, Minnesota, USA |
|---|---|
| Manufacturer | Minneapolis (a part of Minneapolis Threshing Machine Company) |
Engine
| Engine type | Minneapolis Threshing Machine 7.3L 4-cyl kerosene |
|---|---|
| Bore/Stroke | 4.50x7.00 inches (114 x 178 mm) |
| Description | Minneapolis Threshing Machine / kerosene / 4-cylinder / liquid-cooled |
| Displacement | 445.3 ci (7.3 L) |
| Rated RPM | 750 |
| Starter type | hand crank |
| Belt (claimed) | 25 hp (18.6 kW) |
| Belt (tested) | 26.24 hp (19.6 kW) |
| Drawbar (claimed) | 12 hp (8.9 kW) |
| Drawbar (tested) | 16.26 hp (12.1 kW) |
| Plows | 3 (14-inch) |
Transmission
| Gears | 2 forward and 1 reverse |
|---|---|
| Transmission type | 2-speed gear |
| Type | gear |
Mechanical
| Description | Manual steering |
|---|---|
| Drive type | Two-wheel drive |
Dimensions & Tires
| Height | 64 inches (162 cm) |
|---|---|
| Length | 166 inches (421 cm) |
| Weight | 6400 lbs (2903 kg) |
| Width | 86 inches (218 cm) |
| Rear tire | 56x12 |
| Weight | 6400 lbs (2903 kg) |
| Ag rear | 56x12 (steel) |
Belt Pulley
| Diameter | 15 inches (38 cm) |
|---|---|
| RPM | 750 |
| Width | 6.5 inches (16 cm) |
Nebraska Tractor Test 13
| Belt fuel use (max) | 4.2 gal/hour (15.9 l/hour) |
|---|---|
| Belt power (max) | 26.24 hp (19.6 kW) |
| Description | May 17 - June 3, 1920Link: Nebraska Tractor Test 13 file / Drawbar performance |
| Max power | 16.26 hp (12.1 kW) |
| Max pull | 2852 lbs (1293 kg) |