Introduction
Square Turn 18-35 Tractor
The Square Turn 18-35 is a vintage agricultural tractor produced between 1917 and 1921 in Norfolk, Nebraska, USA. Designed during the early era of motorized farming, it served as a primary traction unit for heavy field operations.
Engine and Performance
The tractor is powered by a Climax K, four-cylinder, liquid-cooled gasoline engine. It features a displacement of 510.5 cubic inches (8.4 liters) and operates at a rated speed of 850 RPM. This configuration provides a claimed belt power of 35 hp (26.1 kW), suitable for stationary belt-driven machinery, and 18 hp (13.4 kW) of drawbar power for pulling implements.
Transmission and Drive System
The drivetrain utilizes a friction disc transmission, which allows for infinite forward and reverse speeds, providing unique operational flexibility for the period. It features a 3x2 2WD drive system, utilizing differential steering and bull gear final drives to manage traction and maneuverability in the field.
Dimensions and Build
With a total weight of 7800 lbs (3538 kg), the machine provides significant ground pressure for traction. The tractor measures 199 inches (505 cm) in length, 98 inches (248 cm) in width, and 81 inches (205 cm) in height. It is equipped with 61x12 steel front wheels and an open operator station.
Conclusion
The Square Turn 18-35 represents an early 20th-century approach to tractor engineering, specifically capable of handling three 14-inch plows. It remains a significant model for historians and collectors interested in the development of American agricultural mechanization.
Production Information of Square Turn, 18-35
- Built in Norfolk, Nebraska, USA
- Original price was $1,875 in 1918
| Manufacturer | Square Turn |
|---|
Dimension and Tires Information of Square Turn, 18-35
| Length | 199 inches [505 cm] |
|---|---|
| Weight | 7800 lbs [3538 kg] |
| Width | 98 inches [248 cm] |
| Height | 81 inches [205 cm] |
| Ag front | 61x12 (steel) |
|---|
Engine Specifications of Square Turn, 18-35
- Climax K
- Liquid-cooled
- Gasoline
- 4-cylinder
| Rated RPM | 850 |
|---|---|
| Displacement | 510.5 ci [8.4 L] |
| Bore/Stroke | 5.00x6.50 inches [127 x 165 mm] |
Transmission Information of Square Turn, 18-35
Transmission variants 1
| Type | Friction disc |
|---|---|
| Gears | Infinite forward and reverse |
Mechanical Specs of Square Turn, 18-35
- Open operator station.
- Differential steering
| Drive | 3x2 2WD |
|---|---|
| Final drives | Bull gear |
Power Information of Square Turn, 18-35
| Drawbar (claimed) | 18 hp [13.4 kW] |
|---|---|
| Belt (claimed) | 35 hp [26.1 kW] |
| Plows | 3 |
Fourteen inch
Where it sits
Its power puts it in the 72th percentile of 1910s models in our database (158 machines).
Frequently asked questions
How much horsepower does the Square Turn 18-35 have?
The Square Turn 18-35 delivers 38 hp[B] HP.
What years was the Square Turn 18-35 produced?
The Square Turn 18-35 was produced in 1917-1921.
What engine does the Square Turn 18-35 have?
The Square Turn 18-35 is powered by a Gasoline, 4-cylinder engine.
What transmission does the Square Turn 18-35 use?
The Square Turn 18-35 uses a Friction disc transmission.
How much does the Square Turn 18-35 weigh?
The Square Turn 18-35 weighs 7800 lbs [3538 kg].
Is the Square Turn 18-35 4WD?
The Square Turn 18-35 is available in 2WD.