Introduction
Chamberlain 40KA Standard-Tread Tractor
The Chamberlain 40KA is a standard-tread agricultural tractor manufactured in Welshpool, Australia, between 1949 and 1954. With a total production run of 1,484 units, this machine served as a reliable workhorse during the post-war era of agricultural mechanization.
Engine and Cooling
The tractor is powered by a liquid-cooled, horizontally-opposed two-cylinder engine with a displacement of 6.0 liters (368 cubic inches). It operates on kerosene and produces 48.5 horsepower (36.2 kW) at a rated speed of 1200 RPM. The cooling system utilizes a thermosiphon design, which relies on natural convection to maintain operating temperatures.
Transmission and Drivetrain
The 40KA features a two-wheel drive configuration with a sliding gear transmission. The gearbox provides 9 forward speeds and 3 reverse speeds, allowing for a range of operating speeds suitable for varied field tasks. Power is delivered to the wheels through bull gear final drives, a common arrangement for heavy-duty traction in this era.
Controls and Hydraulics
Steering is managed via a mechanical recirculating ball system, designed to provide the operator with direct control. The tractor is equipped with a rear power take-off (PTO) shaft operating at a standard speed of 540 RPM, facilitating the use of stationary and towed implements. The operator works from an open station design.
Dimensions and Weight
This model has a wheelbase of 83 inches (210 cm) and an overall length of 135 inches (342 cm). It measures 68 inches (172 cm) in width and stands 90 inches (228 cm) high. With a dry weight of 8,500 lbs (3,855 kg), the tractor is equipped with 7.50x18 front tires and 15.00x30 rear tires to support its mass and provide traction.
Conclusion
The Chamberlain 40KA represents a significant period in Australian agricultural history, offering a robust, heavy-duty solution for primary cultivation and traction work. Its mechanical simplicity and substantial weight made it a durable option for farmers requiring consistent power in the field.
Production Information of Chamberlain, 40KA
- Standard-tread tractor
- Built in Welshpool, Australia
| Manufacturer | Chamberlain |
|---|---|
| Total built | 1,484 |
Dimension and Tires Information of Chamberlain, 40KA
| Wheelbase | 83 inches [210 cm] |
|---|---|
| Weight | 8500 lbs [3855 kg] |
| Height | 90 inches [228 cm] |
| Length | 135 inches [342 cm] |
| Width | 68 inches [172 cm] |
| Ag front | 7.50x18 |
|---|---|
| Ag rear | 15.00x30 |
Engine Specifications of Chamberlain, 40KA
- Chamberlain
- Liquid-cooled horizontally-opposed
- Kerosene
- 2-cylinder
| Power | 48.5 hp [36.2 kW] |
|---|---|
| Displacement | 368 ci [6.0 L] |
| Cooling system | Thermosiphon |
| Bore/Stroke | 6.125x6.250 inches [156 x 159 mm] |
| Starter volts | 12 |
| Rated RPM | 1200 |
Transmission Information of Chamberlain, 40KA
Transmission variants 1
| Transmission | Sliding gear |
|---|---|
| Gears | 9 forward and 3 reverse |
Mechanical Specs of Chamberlain, 40KA
- Two-wheel drive
- Open operator station.
| Final drives | Bull gear |
|---|---|
| Steering | Mechanical - recirculating ball |
Power Information of Chamberlain, 40KA
| Rear PTO Type | 540 |
|---|
Where it sits
With 48 HP, the Chamberlain 40KA sits just below C456 (56 HP) in Chamberlain's range. Its power puts it in the 80th percentile of 1940s models in our database (263 machines).
Frequently asked questions
How much horsepower does the Chamberlain 40KA have?
The Chamberlain 40KA delivers 48 HP.
What years was the Chamberlain 40KA produced?
The Chamberlain 40KA was produced in 1949-1954.
What engine does the Chamberlain 40KA have?
The Chamberlain 40KA is powered by a 2-cylinder engine.
What transmission does the Chamberlain 40KA use?
The Chamberlain 40KA uses a Sliding gear transmission.
How much does the Chamberlain 40KA weigh?
The Chamberlain 40KA weighs 8500 lbs [3855 kg].
Is the Chamberlain 40KA 4WD?
The Chamberlain 40KA is available in 2WD.