THE TRADEOFFS, EXPLAINED

TMG TFMS50 vs WoodMaxx FM-78H: two side-shift flails, 49 or 70 inches

Both shift hydraulically from a rear remote. FM-78H cuts 21 inches wider for $1,821 more. A KIOTI CK4020 manual (34.8 PTO hp) fits both; a Kubota L3302 gear (28 PTO, 33 engine) only TFMS50, on engine power; a Kubota L6070 Premium (53 PTO) only FM-78H.

By Acreage Equipment · Reviewed November 9, 2026 · Specification research, not a field test

Compare these two with my tractor Compare the complete purchase cost →

TMG Industrial

TFMS50

30–60 hp · basis unclear · 49″ Working cut, inches

$2,799 checked November 7, 2026

Check current price at TMG Industrial

Specs & tractor check →

WoodMaxx

FM-78H · Hammer blades

30–65 PTO hp · Hammer blades only · 70″ Cutting width, inches

$4,620 checked November 7, 2026

Check current price at WoodMaxx

Specs & tractor check →

START WITH THE DECISION

Consider TFMS50 for smaller compactsShortlist TFMS50 for a 30–50 PTO hp compact where 49 inches and side shift suit the work.

Consider FM-78H for width on a larger compactShortlist FM-78H for a 30–65 PTO hp tractor with the lift for 968 lb.

Read the evidence behind the choice ↓

Observed U.S. prices, checked November 7, 2026, 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.

49-inch against 70-inch

TFMS50 cuts 49 inches (1,250 mm). FM-78H cuts 70.

FM-78H covers wider compact tractors.

50-PTO-hp cap against 30–65 PTO hp

TFMS50: 30–60 HP without a basis, 50-PTO-hp manual maximum. FM-78H: 30–65 PTO hp.

Tractors at 50–65 PTO hp fit only FM-78H.

660 lb against 968 lb

TMG lists 660 lb; WoodMaxx’s manual gives 968 lb for FM-78H.

FM-78H needs more lift at 24 inches.

Category 1 against 1/2

TFMS50 is Category 1. FM-78H lists Category 1 and 2.

Category 2-only tractors fit FM-78H.

A CONDITIONAL SHORTLIST

Which direction makes sense?

Consider TFMS50 for smaller compacts

Shortlist TFMS50 for a 30–50 PTO hp compact where 49 inches and side shift suit the work.

Check current price at TMG Industrial Prepare questions for the seller

Consider FM-78H for width on a larger compact

Shortlist FM-78H for a 30–65 PTO hp tractor with the lift for 968 lb.

Check current price at WoodMaxx Prepare questions for the seller

Keep these source limits with the decision.

TMG TFMS50: the page and manual table say 30–60 HP without a basis, while the manual’s p6 caps tractor power at 50 PTO hp.

FM-78H: the page lists 804 lb mower-only plus a 39-lb shaft; the manual gives 968 lb.

This comparison reuses the manufacturer evidence retained in the product records reviewed November 7, 2026; product pages were not re-fetched on November 9. Document conflicts are kept visible. No field test or manufacturer-approved tractor pairing is claimed.

FOLLOW THE NUMBERS

Sources & documentation

Research record reviewed November 9, 2026. Confirm the current manual and the exact revision supplied with your machine.

Official U.S. TFMS50 page: operating specifications and priceProduct page: 30–60 HP table, 49-in. working cut, about 14 in. hydraulic side shift, 660 lb operation weight, price
TMG TFMS50/60/72 manual, 2025-01-09, pp6, 10, 14–15, 19–20Manual 2025-01-09: p6 tractor power must not exceed 50 PTO hp; 1,250 mm cutting width; side-shift cylinder and two hoses
Official FM-78H page: hammer option, price, equipment and conflicting weightsProduct page: hammer option, hydraulic side shift, 30–65 PTO hp, 70-in. cut, 804 lb mower plus 39 lb shaft, price
WoodMaxx 2025-to-current FM series operator manualPrinted p40 / PDF p41: FM-62 20–45 PTO hp (Y-blades) and 24–45 (hammers), 774 lb, FM-62H 860 lb; FM-78 and FM-78H 30–65 PTO hp, 880 and 968 lb; hydraulic side shift on H models only
WoodMaxx manual index: Models 2025 to current