| Manufacturer |
Heider |
| Price |
- |
| Model |
C 12-20 |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Rock Island, Illinois, USA |
NEBRASKA TRACTOR TEST 16
| Description |
Kerosene 7-speed 2WD/May 28 - June 8, 1920/Link: Nebraska Tractor Test 16 file/Drawbar performance/Gear 1 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
24.24 hp/18.1 kW |
| Belt fuel use (max) |
4.3 gal/hour/16.3 l/hour |
| Max power |
13.43 hp/10.0 kW |
| Max pull |
2,223 lbs/1008 kg |
HEIDER C 12-20 POWER
| Drawbar (claimed) |
9 hp/6.7 kW |
| Belt (claimed) |
16 hp/11.9 kW |
| Plows |
4 |
| Drawbar (tested) |
13.43 hp/10.0 kW |
| Belt (tested) |
24.24 hp/18.1 kW |
ENGINE DETAIL
The Heider C 12-20 tractor, powered by a Waukesha kerosene 4-cylinder engine with a displacement of 429 ci (7.0 L), offers a low-rated RPM of 900, ideal for torque delivery rather than high-speed operations. Its bore and stroke measurements (4.50 x 6.75 inches) indicate a long-stroke design, which typically enhances low-end torque but may lead to higher wear rates at sustained high RPMs. The 36-quart coolant capacity supports effective thermal management, essential for maintaining optimal engine performance, especially in heavy-duty agricultural applications.
| Description |
Waukesha/kerosene/4-cylinder/liquid-cooled |
| Displacement |
429 ci/7.0 L |
| Bore/Stroke |
4.50x6.75 inches/114 x 171 mm |
| Rated RPM |
900 |
| Coolant capacity |
36 qts/34.1 L |
HEIDER C 12-20 ENGINE
The Heider C 12-20 tractor, powered by a Waukesha 7.0L 4-cylinder kerosene engine, offers robust performance but may face challenges in fuel efficiency due to its specialized fuel type. With a 21-gallon (79.5 L) fuel tank, it provides decent range for agricultural tasks, yet the kerosene requirement might limit fuel availability in some regions. Ideal for heavy-duty applications, this tractor’s engine delivers high torque but could result in increased maintenance needs associated with kerosene combustion.
| Description |
Waukesha 7.0L 4-cyl kerosene |
| Fuel tank |
21 gal/79.5 L |
TRANSMISSION
The Heider C 12-20 tractor features a friction drive system, which provides smooth power transfer but may lead to increased wear in high-torque applications. With 7 forward and reverse gears, this tractor offers versatility in maneuverability, making it suitable for varied tasks such as plowing or transporting materials. However, operators should be cautious of potential slippage in challenging terrain, which can affect performance.
| Type |
friction drive |
| Gears |
7 forward and reverse |
MECHANICAL
The Heider C 12-20 tractor features a 4x2 2WD configuration, providing basic traction suitable for lighter agricultural tasks but potentially limiting performance on uneven or slippery terrains. The manual steering system offers simplicity and durability, though it may require more physical effort in tighter maneuvers. With a 7-speed friction drive transmission, operators can expect a range of speed settings, but potential challenges include limited efficiency under heavy load conditions and less responsiveness compared to modern hydrostatic systems.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Cab |
Four-post canopy. |
| Transmission |
7-speed friction drive |
TRACTOR HITCH
HEIDER C 12-20 TIRES
The Heider C 12-20 tractor features robust 30x5 steel front tires and 57x10 steel rear tires, providing excellent durability and traction for agricultural applications. The heavier rear tires enhance stability and load-bearing capability, making it ideal for plowing and heavy tillage. However, the steel tire composition may lead to reduced flexibility on uneven terrain, which can challenge traction in muddy conditions.
| Ag front |
30x5 steel |
| Ag rear |
57x10 steel |
DIMENSIONS
| Wheelbase |
96 inches/243 cm |
| Length |
144 inches/365 cm |
| Width |
74 inches/187 cm |
| Height |
96 inches/243 cm |
| Weight |
6,000 lbs/2721 kg |
DIMENSIONS & TIRES
The Heider C 12-20 tractor features a 96-inch wheelbase that enhances stability during operation, particularly in field applications. Weighing 6,000 lbs, its weight distribution aids in traction, making it suitable for heavy-duty tasks, but it may limit mobility on softer terrains. The front tire specification of 30x5 contributes to steering responsiveness, while the larger rear tire size of 57x10 offers improved load-bearing capacity, ideal for pulling implements.
| Wheelbase |
96 inches/243 cm |
| Weight |
6,000 lbs/2721 kg |
| Front tire |
30x5 |
| Rear tire |
57x10 |
