Overview
The Twin City 12-20 is a standard-tread farm tractor produced in Minneapolis, Minnesota, between 1919 and 1926 with 9,700 units built. It features a 5.6L 4-cylinder liquid-cooled inline engine rated at 1000 RPM, equipped with a two-speed gear transmission and an open operator station.
Ideal Applications
Tested Performance Results:
According to Nebraska Tractor Test 19, the 12-20 achieved a maximum belt power of 27.93 hp and a maximum drawbar pull of 3,476 lbs while consuming 3.2 gallons of kerosene per hour.
Belt Pulley Specifications:
The tractor is equipped with a 16-inch diameter belt pulley that operates at 650 RPM, providing a belt speed of 2,700 feet per minute.
Physical Configuration and Dimensions:
This 5,000 lb tractor has an 84-inch wheelbase and is fitted with steel ag wheels measuring 34x5.75 on the front and 50x12 on the rear.
Production
| Description | Standard-tread tractor / Built in Minneapolis, Minnesota, USA |
|---|---|
| Manufacturer | Twin City |
| Total built | 9,700 |
Engine
| Aux. fuel | 1 gal (3.8 L) |
|---|---|
| Engine type | Twin City 5.6L 4-cyl kerosene |
| Fuel tank | 20 gal (75.7 L) |
| Bore/Stroke | 4.25x6.00 inches (108 x 152 mm) |
| Coolant capacity | 40 qts (37.9 L) |
| Description | Twin City / kerosene / 4-cylinder 16-valve / liquid-cooled inline |
| Displacement | 340.5 ci (5.6 L) |
| Fuel system | Holley carburetor |
| Power | 35 hp (26.1 kW) |
| Rated RPM | 1000 |
| Starter type | hand-crank |
| Belt (claimed) | 20 hp (14.9 kW) |
| Belt (tested) | 27.93 hp (20.8 kW) |
| Drawbar (claimed) | 12 hp (8.9 kW) |
| Drawbar (tested) | 18.43 hp (13.7 kW) |
| Plows | 3 (14-inch) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 2 forward and 1 reverse |
| Transmission type | 2-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering |
| Drive type | Two-wheel drive |
| Final drives | bull gear |
Dimensions & Tires
| Height | 66 inches (167 cm) |
|---|---|
| Length | 134 inches (340 cm) |
| Shipping weight | 5000 lbs (2268 kg) |
| Wheelbase | 84 inches (213 cm) |
| Width | 63 inches (160 cm) |
| Front tire | 34x5.75 |
| Rear tire | 50x12 |
| Weight | 5000 lbs (2268 kg) |
| Wheelbase | 84 inches (213 cm) |
| Ag front | 34x5.75 (steel) / 30x5.75 (orchard) |
| Ag rear | 50x12 (steel) / 42x12 (orchard) |
12-20 Serial Number Location
| Description | Front-left of transmission. |
|---|
Belt Pulley
| Diameter | 16 inches (40 cm) |
|---|---|
| RPM | 650 |
| Speed | 2700 ft/min (822.96 meters/min) |
| Width | 6.5 inches (16 cm) |
Nebraska Tractor Test 19
| Belt fuel use (max) | 3.2 gal/hour (12.1 l/hour) |
|---|---|
| Belt power (max) | 27.93 hp (20.8 kW) |
| Description | Kerosene 2-speed 2WDJune 3 - 12, 1920Link: Nebraska Tractor Test 19 file / Drawbar performance |
| Max power | 18.43 hp (13.7 kW) |
| Max pull | 3476 lbs (1576 kg) |
References
| Description | Twin City Kerosene Tractors published in 1918, by Minneapolis Steel and Machinery |
|---|