Overview
The Heider C 12-20 is a robust 6,000-pound farm tractor featuring a unique seven-speed friction drive transmission and a 7.0L Waukesha kerosene engine. Known for its historical performance in Rock Island, Illinois, it demonstrated a tested belt power of 24.24 hp and a maximum drawbar pull of 2,223 lbs in official Nebraska Tractor Test evaluations.
Ideal Applications
Plowing Operations:
Equipped with the specialized Heider Plow Lift system and rated for 4 plows, this tractor is designed for primary tillage work using its 13.43 hp tested drawbar capacity.
Stationary Belt Work:
With a tested belt power of 24.24 hp at 900 rated RPM, this unit serves as a reliable power source for belt-driven farm machinery.
High-Traction Field Tasks:
Utilizing 57x10 inch steel rear wheels and a heavy 6,000-pound frame, this standard-tread tractor provides the stability and weight required for heavy-duty 2WD pulling.
Production
| Description | Standard-tread tractor / Built in Rock Island, Illinois, USA |
|---|---|
| Manufacturer | Heider (a part of Rock Island) |
Engine
| Engine type | Waukesha 7.0L 4-cyl kerosene |
|---|---|
| Fuel tank | 21 gal (79.5 L) |
| Bore/Stroke | 4.50x6.75 inches (114 x 171 mm) |
| Coolant capacity | 36 qts (34.1 L) |
| Description | Waukesha / kerosene / 4-cylinder / liquid-cooled |
| Displacement | 429 ci (7.0 L) |
| Rated RPM | 900 |
| Belt (claimed) | 16 hp (11.9 kW) |
| Belt (tested) | 24.24 hp (18.1 kW) |
| Drawbar (claimed) | 9 hp (6.7 kW) |
| Drawbar (tested) | 13.43 hp (10.0 kW) |
| Plows | 4 |
Transmission
| Gears | 7 forward and reverse |
|---|---|
| Transmission type | 7-speed friction drive |
| Type | friction drive |
Mechanical
| Description | Four-post canopy. |
|---|---|
| Drive type | Two-wheel drive |
| Steering | manual |
Hitch
| Type | Heider Plow Lift |
|---|
Dimensions & Tires
| Height | 96 inches (243 cm) |
|---|---|
| Length | 144 inches (365 cm) |
| Weight | 6,000 lbs (2721 kg) |
| Wheelbase | 96 inches (243 cm) |
| Width | 74 inches (187 cm) |
| Front tire | 30x5 |
| Rear tire | 57x10 |
| Weight | 6,000 lbs (2721 kg) |
| Wheelbase | 96 inches (243 cm) |
| Ag front | 30x5 steel |
| Ag rear | 57x10 steel |
Links
| Description | Heider C: information at RIPC site |
|---|
Nebraska Tractor Test 16
| Belt fuel use (max) | 4.3 gal/hour (16.3 l/hour) |
|---|---|
| Belt power (max) | 24.24 hp (18.1 kW) |
| Description | Kerosene 7-speed 2WDMay 28 - June 8, 1920Link: Nebraska Tractor Test 16 file / Drawbar performance / Gear 1 used for power test. / Gear 1 used for pull test. |
| Max power | 13.43 hp (10.0 kW) |
| Max pull | 2,223 lbs (1008 kg) |