Massey Ferguson 7720S

Last Updated: July 2024

Overview

The Massey Ferguson 7720S is a powerful row-crop tractor with a maximum engine power output of 197.8 HP. It features a Dyna-VT continuously variable transmission with mechanical and hydrostatic sections, allowing infinite speed adjustments. The 6-cylinder AGCO Power 66 AWF turbocharged and intercooled diesel engine is liquid-cooled with a heat exchanger for crankcase oil and a radiator for hydraulic and transmission oil. Key performance metrics include a maximum PTO power of 191 HP at 2100 rpm, drawbar performance of 137.2 HP at 5.19 mph with 7440 lbs pull, hydraulic force of 13890 lbs at hitch points, pump delivery rates up to 42.1 GPM, and hydraulic power of 33 HP at 1990 psi. Fuel efficiency is rated at 17.05 HP-hr/gal at standard PTO speed, with maximum power fuel consumption of 10.05 gal/hr and DEF consumption of 0.70 gal/hr. The tractor has a 4x4 MFWD 4WD chassis, power steering, multiple wet disc hydraulic brakes, and is equipped with 620/70R42 rear and 480/70R30 front tires. Sound levels are 76.5 dB(A) engaged and 75.0 dB(A) disengaged.
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Key Specifications

Category: Row Crop

Power Output: 197.8

Drive Type: 4WD

Operating Weight: 18180

Fuel Type: No. 2 Diesel

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Massey Ferguson 7720S Tractor Massey Ferguson 7720S Tractor Massey Ferguson 7720S Tractor Massey Ferguson 7720S Tractor Massey Ferguson 7720S Tractor Massey Ferguson 7720S Tractor Massey Ferguson 7720S Tractor Massey Ferguson 7720S Tractor

Massey Ferguson 7720S vs. Similar Tractors

Power Output
Average
Greater than 68% of similar tractors.
Operating Weight
Average
Greater than 63% of similar tractors.

Technical Specifications

Engine

Manufacturer
AGCO Power
Model
66 AWF
Cooling Type
Liquid-cooled with engine coolant heat exchanger for crankcase oil, radiator for hydraulic and transmission oil
Cylinder Orientation
-
Valve Configuration
-
Fuel Type
No. 2 Diesel
Induction Type
Turbocharged intercooled
Cylinders
6
Displacement (ci)
402.5
Bore (in)
4.252
Stroke (in)
4.724
Rated RPM
850-2100
Power Output (hp)
197.8

Transmission

Type
-
Forward Gears
24
Reverse Gears
24
Total Gears
-

Dimensions

Length (in)
202.7
Width (in)
96.7
Height (in)
123.2 (cab) / 122.9 (exhaust)
Operating Weight (lb)
18180

Power Take-Off (PTO)

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

Miscellaneous

Chassis
4x4 MFWD 4WD
Drive Type
4WD
Steering Type
Power
Coolant Capacity (qts)
-
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
-
Manufacture - End Year
-
Hitch Type
III/II
Hitch Category
3
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
Cab
Starter Type
Electric
Brake Type
-
Hydraulic System Type
Closed-center load-sensing

Test Results

Nebraska Tractor Test Laboratory - Test Date: February to March, 2016

Maximum Power and Fuel Consumption

  • Maximum PTO Power at Rated Engine Speed: 191.0 HP (142.4 kW) at 2100 rpm
  • Fuel Consumption at Maximum Power: 10.05 Gal/hr (38.05 l/h) with a fuel efficiency of 0.367 lb/hp.hr (0.223 kg/kW.h)
  • DEF Consumption at Standard PTO Speed: 0.70 Gal/hr (2.66 l/h)

Drawbar Performance

  • Power at Rated Engine Speed (11th Gear): 137.2 HP (102.4 kW) with a drawbar pull of 7440 lbs (33.1 kN) and a speed of 5.19 mph (8.35 km/h)
  • Fuel Consumption at Rated Speed: 0.460 lb/hp.hr (0.280 kg/kW.h) with a fuel efficiency of 14.97 Hp.hr/gal (2.95 kW.h/l)

Torque and Engine Performance

  • Maximum Torque: 603.6 lb.-ft. (819 Nm) at 1001 rpm
  • Torque Rise: 51.8% with a power increase at 1801 rpm of 14.1%

Hydraulic Performance

  • Maximum Force Exerted: 13890 lbs (61.8 kN) at hitch points
  • Pump Delivery Rate: 30.7 GPM (116.2 l/min) at standard option, 42.1 GPM (159.2 l/min) at optional maximum
  • Hydraulic Power (Standard): 33.0 HP (25.2 kW) at delivery pressure of 1990 psi (137 bar)

Overall Efficiency

  • Fuel Efficiency at Standard PTO Speed (1000 rpm): 17.05 Hp.hr/gal (3.35 kW.h/l)
  • Fuel Consumption: 10.05 Gal/hr (38.05 l/h) at 2100 rpm



NTTL.(2018). OECD tractor test 2947 for Massey Ferguson 7720S Dyna 6 Diesel. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from http://tractortestlab.unl.edu

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