Introduction
Allis-Chalmers 20-35 Tractor
The Allis-Chalmers 20-35 is a standard-tread tractor manufactured in West Allis, Wisconsin, between 1922 and 1930. Evolving from the earlier E 18-30 model, this two-wheel-drive machine served as a primary power source for agricultural operations during the interwar period.
Engine and Performance
The tractor is powered by a liquid-cooled, 4-cylinder vertical gasoline engine with overhead valves. It features a displacement of 460.7 cubic inches (7.6 liters) and operates at a rated 930 RPM. Fuel is delivered via a Kingston L 1.5-inch carburetor, and the intake air is filtered through an oil bath system. The engine produces a rated 38 belt horsepower.
Transmission and Drivetrain
The drivetrain utilizes an unsynchronized gear transmission providing two forward speeds and one reverse gear. Engagement is managed through a hand-operated expanding shoe clutch, a design characteristic of the era's mechanical systems.
Mechanical and Dimensions
The 20-35 is a two-wheel-drive tractor featuring manual steering and an open operator station. It measures 135 inches in length, 66 inches in width, and 68 inches in height. With an operating weight of 6,640 lbs (3,011 kg), the unit is equipped with steel agricultural wheels, specifically 36x6 front tires and 50x12 rear tires.
Conclusion
The Allis-Chalmers 20-35 represents the standard agricultural tractor configuration of the 1920s. Its robust construction and 38 belt horsepower made it suitable for various heavy-duty drawbar and belt-driven farm tasks, establishing a significant place in the history of American tractor development.
Production Information of Allis Chalmers, 20-35
- When the Allis-Chalmers E 18-30 was re-tested in 1921 at 930 RPM, it produced a rated 38 belt horsepower. The tractor was re-named the 20-35.
- Standard-tread tractor
- Built in West Allis, Wisconsin, USA
| Manufacturer | Allis Chalmers |
|---|
Dimension and Tires Information of Allis Chalmers, 20-35
| Length | 135 inches [342 cm] |
|---|---|
| Weight | 6640 lbs [3011 kg] |
| Width | 66 inches [167 cm] |
| Height | 68 inches [172 cm] |
| Ag front | 36x6 steel |
|---|---|
| Ag rear | 50x12 steel |
Engine Specifications of Allis Chalmers, 20-35
- Allis Chalmers
- Liquid-cooled vertical valve-in-head
- Gasoline
- 4-cylinder
| Fuel system | Kingston L 1.5" carburetor |
|---|---|
| Displacement | 460.7 ci [7.6 L] |
| Air cleaner | Oil bath |
| Bore/Stroke | 4.75x6.50 inches [121 x 165 mm] |
| Coolant capacity | 40 qts [37.9 L] |
| Rated RPM | 930 |
Transmission Information of Allis Chalmers, 20-35
Transmission variants 1
| Type | Unsynchronized gear |
|---|---|
| Gears | 2 forward and 1 reverse |
| Clutch | Hand-operated expanding shoe |
Mechanical Specs of Allis Chalmers, 20-35
- Two-wheel drive
- Manual steering
- Open operator station.
Power Information of Allis Chalmers, 20-35
- Https://www.tractordata.com/farm-tractors/003/0/6/3067-allis-chalmers-20-35-tests.html
Where it sits
With 38 hp[B] HP, the Allis Chalmers 20-35 sits between 18-30 (33 HP) and 25-40 (44 HP) in Allis Chalmers's range. Its power puts it in the 68th percentile of 1920s models in our database (181 machines).
Frequently asked questions
How much horsepower does the Allis Chalmers 20-35 have?
The Allis Chalmers 20-35 delivers 38 hp[B] HP.
What years was the Allis Chalmers 20-35 produced?
The Allis Chalmers 20-35 was produced in 1922-1930.
What engine does the Allis Chalmers 20-35 have?
The Allis Chalmers 20-35 is powered by a Gasoline, 4-cylinder engine.
What transmission does the Allis Chalmers 20-35 use?
The Allis Chalmers 20-35 uses a Unsynchronized gear transmission.
How much does the Allis Chalmers 20-35 weigh?
The Allis Chalmers 20-35 weighs 6640 lbs [3011 kg].
Is the Allis Chalmers 20-35 4WD?
The Allis Chalmers 20-35 is available in 2WD.