Farmry LFS61 vs WoodMaxx FM-78 hammer: an unstated 35-hp ceiling or a 30-PTO-hp floor
LFS61 and FM-78 meet at tractors just over 30 PTO hp. A Kubota L3970 Premium, at 30.9 PTO and 39 engine hp, clears FM-78’s 30-PTO-hp minimum by 0.9. Whether it is inside LFS61’s 15–35 hp range depends on which figure Farmry means: 30.9 is inside, 39 is over. LFS61 is the light, low-priced 61-inch mower; FM-78 is a heavier 70-inch mower with a clear PTO rule.
By Acreage Equipment · Reviewed November 8, 2026 · Specification research, not a field test
Consider LFS61 if Farmry confirms a PTO basisShortlist LFS61 when Farmry confirms its 35-hp ceiling refers to PTO power, the tractor’s PTO figure is under it and a light, low-priced 61-inch mower suits the growth.
Consider FM-78 above 30 PTO hpShortlist FM-78 when the tractor’s confirmed PTO rating is at or above 30 hp, a 70-inch cut suits the ground and heavier brush calls for hammers.
Observed U.S. seller prices, checked November 6, 2026 (LFS61) and November 7, 2026 (FM-78), from the retained product records. Prices were not refreshed for this comparison. Tax, shipping, options and the final seller quote may change the delivered total; these are dated observations, not a live price or stock feed. Open your saved comparison →
The differences that matter.
01
An unstated ceiling against a PTO floor
Farmry rates LFS61 at 15–35 hp without naming engine or PTO power. WoodMaxx’s manual rates FM-78 with hammers at 30–65 PTO hp.
A 30.9-PTO, 39-engine-hp tractor is 0.9 inside FM-78’s minimum, and inside LFS61 only if Farmry means PTO power. A tractor under 30 PTO hp, such as the L3770 Deluxe at 28, is outside FM-78.
On a tractor 59.8 inches wide at minimum tread, both span the tractor at narrow settings; FM-78 covers the tires at any tread setting and needs a wider gate.
Farmry’s manual lists LFS61 at 421 lb net with the PTO shaft. WoodMaxx’s manual lists FM-78 at 880 lb product weight; its page lists 710 lb mower-only plus a 39-lb shaft.
FM-78 is about twice the rear load. Both are well under a 2,646-lb lift rating at 24 inches; plan front ballast on FM-78’s complete weight.
Shortlist LFS61 when Farmry confirms its 35-hp ceiling refers to PTO power, the tractor’s PTO figure is under it and a light, low-priced 61-inch mower suits the growth.
Shortlist FM-78 when the tractor’s confirmed PTO rating is at or above 30 hp, a 70-inch cut suits the ground and heavier brush calls for hammers. With a margin under 1 hp, ask WoodMaxx to confirm the pairing.
Farmry does not name the horsepower basis for LFS61; tractors with PTO power under 35 and engine power over 35 are in or out depending on the reading.
FM-78’s 880-lb manual product weight differs from the page’s 710 lb mower-only plus 39-lb shaft.
This comparison reuses the manufacturer evidence retained in the product records reviewed November 7, 2026 (LFS61 price November 6); product pages were not re-fetched on November 8. LFS61 uses the current product page and the Rev 1.7 manual; FM-78 uses the current product page and the 2025-to-current WoodMaxx manual.
FOLLOW THE NUMBERS
Sources & documentation
Research record reviewed November 8, 2026. Confirm the current manual and the exact revision supplied with your machine.
