Introduction
Gray Tractor 18-30: Historical Agricultural Tractor
The Gray Tractor 18-30 is a standard-tread agricultural tractor produced between 1915 and 1921 in Minneapolis, Minnesota, USA. As a representative machine of the early 20th-century agricultural mechanization, it was engineered for heavy-duty field operations and traction tasks.
Engine and Performance
The tractor is powered by a liquid-cooled, 4-cylinder inline Waukesha engine. With a displacement of 429 cubic inches (7.0 liters) and a rated speed of 850 RPM, the engine provides the necessary torque for field work. The machine is rated for a drawbar power of 18 hp (13.4 kW) and a belt power of 30 hp (22.4 kW), allowing it to pull up to four plows.
Drivetrain and Operation
Power is delivered to the ground through a 3x1 drum drive system. The transmission is a manual gear type featuring two forward gears and one reverse gear. Operator control is managed via manual steering from an open operator station, reflecting the standard design practices for agricultural equipment of that era.
Dimensions and Chassis
The Gray 18-30 is a substantial machine, measuring 174 inches (441 cm) in length, 78 inches (198 cm) in width, and 63 inches (160 cm) in height. It has a total weight of 5,950 lbs (2,698 kg). The tractor is equipped with steel agricultural wheels, featuring 40x8 steel tires at the front and 54x54 steel tires at the rear to support its weight and provide traction on varied soil conditions.
Conclusion
The Gray Tractor 18-30 serves as a significant example of early tractor design. With its robust Waukesha engine and 4-plow capacity, it was designed to provide reliable mechanical power for large-scale farming operations during the late 1910s and early 1920s.
Production Information of Gray Tractor, 18-30
- Original price was $1,750 in 1915
- Standard-tread tractor
- Built in Minneapolis, Minnesota, USA
| Manufacturer | Gray Tractor |
|---|
Dimension and Tires Information of Gray Tractor, 18-30
| Length | 174 inches [441 cm] |
|---|---|
| Weight | 5950 lbs [2698 kg] |
| Width | 78 inches [198 cm] |
| Height | 63 inches [160 cm] |
| Ag front | 40x8 steel |
|---|---|
| Ag rear | 54x54 steel |
Engine Specifications of Gray Tractor, 18-30
- Waukesha
- Liquid-cooled inline
- Gasoline
- 4-cylinder
| Rated RPM | 850 |
|---|---|
| Displacement | 429 ci [7.0 L] |
| Bore/Stroke | 4.50x6.75 inches [114 x 171 mm] |
Transmission Information of Gray Tractor, 18-30
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 2 forward and 1 reverse |
Mechanical Specs of Gray Tractor, 18-30
- Manual steering
- Open operator station.
| Drive | 3x1 drum drive |
|---|
Power Information of Gray Tractor, 18-30
| Drawbar (claimed) | 18 hp [13.4 kW] |
|---|---|
| Belt (claimed) | 30 hp [22.4 kW] |
| Plows | 4 |
Where it sits
With 30 hp[B] HP, the Gray Tractor 18-30 sits between 15-25 (25 HP) and 18-36 (36 HP) in Gray Tractor's range. Its power puts it in the 49th percentile of 1910s models in our database (158 machines).
Frequently asked questions
How much horsepower does the Gray Tractor 18-30 have?
The Gray Tractor 18-30 delivers 30 hp[B] HP.
What years was the Gray Tractor 18-30 produced?
The Gray Tractor 18-30 was produced in 1917.
What engine does the Gray Tractor 18-30 have?
The Gray Tractor 18-30 is powered by a Gasoline, 4-cylinder engine.
What transmission does the Gray Tractor 18-30 use?
The Gray Tractor 18-30 uses a Gear transmission.
How much does the Gray Tractor 18-30 weigh?
The Gray Tractor 18-30 weighs 5950 lbs [2698 kg].