Estimate total ballasted weight and suggested axle split from rated PTO horsepower and a pounds-per-HP guideline for 2WD, MFWD, or 4WD.
Use this for a planning target before you add suitcase weights or liquid ballast. Manufacturer manuals and Nebraska test data still win for a specific model — this page applies common Extension ranges.
Heavier lb/HP suits low-speed tillage; lighter suits transport and higher field speeds. Always confirm axle limits and tire load ratings.
Total weight = HP × lb/HP. Axle targets use a front percent of that total.
total_lb = PTO_HP × lb_per_HP
front_lb = total_lb × (front% ÷ 100)
rear_lb = total_lb − front_lb
Common planning bands: MFWD/2WD often ~120–145 lb/HP; 4WD often ~85–125 lb/HP. Splits shown are typical starting points for towed implements — mounted equipment shifts weight rearward/forward.
MFWD, 200 PTO HP, 130 lb/HP, 35/65 split:
Total = 26,000 lb → front 9,100 lb, rear 16,900 lb.
Assumptions: static planning split without dynamic weight transfer from a specific hitch load.
Limits: does not size suitcase castings vs liquid, tire pressure, or slip %. OEM axle ratings may cap ballast below the formula.
Responsibility: weigh axles when possible; follow the operator’s manual and tire manufacturer load tables.
Start near 130 for MFWD tillage in the 4–6 mph range; go lighter for faster field work; use the lower 4WD band for articulated four-wheel drives. Dealer and manual guidance override defaults.
Mounted/integral tools often need more front weight percent than towed tools. Adjust the custom split after you know hitch transfer.
Target working weight usually assumes a typical operator and fuel level — match whatever convention your manual uses when comparing scale weights.