Minneapolis 35-70

Last Updated: July 2024

Overview

The Minneapolis 35-70 is a standard-tread tractor known for its solid construction and manual operation. Manufactured by the Minneapolis Threshing Machine Company, this model was designed as a workhorse for the farming industry. It features a 4x2 2WD chassis with manual steering and a simple 2-speed gear transmission with an additional reverse gear. The engine, also produced by Minneapolis Threshing Machine, is a large 4-cylinder kerosene engine with a displacement of 1486.2 cubic inches, known for its low rated RPM of 550. The engine has horizontally opposed valves and a horizontal cylinder orientation. Cooling is handled through a liquid system with a significant 240-quart capacity, reflecting the engine's large size and thermal load. Due to its steel construction, including steel wheels, it boasts a considerable operating weight of 22500 pounds. The tractor's sizeable dimensions with a length of 206 inches, width of 108 inches, and height of 122 inches make it a prominent fixture in the fields. Independent test results from the University of Nebraska Tractor Test Laboratory have provided additional performance details, including maximum brake horsepower, fuel consumption rates, rated load test results, and cooling test results.
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Key Specifications

Category: Utility, Standard Tread

Transmission: Gear

Drive Type: 2WD

Operating Weight: 22500

Fuel Type: Kerosene

Minneapolis 35-70 vs. Similar Tractors

Operating Weight
Above Average
Greater than 70% of similar tractors.

Technical Specifications

Engine

Manufacturer
Minneapolis Threshing Machine
Model
35-70
Cooling Type
Liquid-cooled
Cylinder Orientation
-
Valve Configuration
-
Fuel Type
Kerosene
Induction Type
Naturally aspirated
Cylinders
4
Displacement (ci)
1486.2
Bore (in)
7.25
Stroke (in)
9
Rated RPM
550
Power Output (hp)
-

Transmission

Type
Gear
Forward Gears
2
Reverse Gears
1
Total Gears
-

Dimensions

Length (in)
206
Width (in)
108
Height (in)
122
Operating Weight (lb)
22500

Power Take-Off (PTO)

PTO Type
-
PTO Speed 1 (rpm)
-
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x2 2WD
Drive Type
2WD
Steering Type
Manual
Coolant Capacity (qts)
240
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Steel
Manufacture - End Year
-
Hitch Type
-
Hitch Category
-
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
-
Starter Type
Hand crank
Brake Type
-
Hydraulic System Type
-

Test Results

Nebraska Tractor Test Laboratory - Test Date: January 1920

Maximum Power and Fuel Consumption

  • Maximum Brake Horsepower: 60.94 HP at 640 rpm
  • Fuel Consumption at Maximum Power: 12.27 Gal/hr with a fuel efficiency of 0.680 lb/hp.hr

Drawbar Performance

  • Maximum Drawbar Power: 52.06 HP with a pull of 5850 lbs at a speed of 2.31 mph
  • Fuel Consumption at Maximum Drawbar Power: 12.42 Gal/hr with an efficiency of 0.795 lb/hp.hr

Engine and Torque Performance

  • Rated Load Test: 52.07 HP with fuel consumption of 7.27 lb/hr at engine speed of 640 rpm
  • Torque Rise: Information not explicitly listed, but inferred performance through power efficiency statistics.

Overall Efficiency

  • Fuel Consumption Over Entire Test: 120.27 gallons over approximately 50 hours

Oil Consumption

  • Oil Used During Test: 2.5 gallons for the engine, 7.5 gallons for the transmission



NTTL.(1920). Nebraska Tractor Test 015 for Minneapolis 35-70. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/620

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