Tractorpedia.com

Allis Chalmers 18-30

Allis Chalmers 18-30 tractor
View Images
The Allis Chalmers 18-30 was produced from 1918 to 1921 as a standard-tread farm tractor built in West Allis, Wisconsin, USA. Originally named the 15-30, it was renamed 18-30 after the first Nebraska test. It features a 7.6L 4-cylinder gasoline engine with liquid cooling and a 2-speed unsynchronized gear transmission. The tractor delivers a claimed 18 hp at the drawbar and 30 hp at the belt, with tested power outputs slightly higher. It weighs 6150 lbs and rides on steel tires sized 36x6 front and 50x12 rear. The 18-30 has an open operator station and two-wheel drive. It was succeeded by the Allis Chalmers 20-35 model.
Allis Chalmers 18-30tractorfarm tractorspecificationsenginetransmissionpowerdimensions1918191919201921
Power33 hp[B]
Founded1918 - 1921
Model18-30

Technical Specifications

Detailed specifications and technical data for Allis Chalmers 18-30

Power

Plows:3
Belt (tested):33.41 hp (24.9 kW)
Belt (claimed):30 hp (22.4 kW)
Drawbar (tested):20.55 hp (15.3 kW)
Drawbar (claimed):18 hp (13.4 kW)

Tires

Rear tire:50x12 steel
Front tire:36x6 steel

Engine

Type:Allis Chalmers 7.6L 4-cyl gasoline
Cooling:liquid-cooled vertical valve-in-head
Aux. fuel:7.75 gal (29.3 L)
Cylinders:4-cylinder
Fuel tank:25 gal (94.6 L)
Rated RPM:830
Air cleaner:oil bath
Bore/Stroke:4.75x6.50 inches (121 x 165 mm)
Fuel system:Kingston L 1.5" carburetor
Displacement:460.7 ci (7.6 L)
Coolant capacity:40 qts (37.9 L)

Dimensions

Width:66 inches (167 cm)
Height:68 inches (172 cm)
Length:135 inches (342 cm)
Weight:6150 lbs (2789 kg)

Mechanical

Drive:Two-wheel drive
Operator station:Open operator station

Production

Type:Standard-tread tractor
Notes:Originally named the Allis-Chalmers 15-30, the tractor was renamed 18-30 after the first Nebraska test.
Built in:West Allis, Wisconsin, USA
Total built:1160
Original price:$1,785 in 1919
Years produced:1918 - 1921

Belt Pulley

RPM:930
Width:8.5 inches (21 cm)
Diameter:13 inches (33 cm)

Transmission

Type:unsynchronized gear
Gears:2 forward and 1 reverse
Clutch:hand-operated expanding shoe

Related Models

Allis Chalmers 20-35

Model:20-35