THE TRADEOFFS, EXPLAINED

TMG TFMS50 vs WoodMaxx FM-78 Y: 49-inch side shift or 70-inch Y-blade

A KIOTI CK3520 manual (30.9 PTO hp) fits both. A Kubota L3302 gear (28 PTO, 33 engine) fits only TFMS50, on engine power; a Kubota L6070 Premium (53 PTO) only FM-78 Y. TFMS50 adds side shift; FM-78 Y adds 21 inches of cut.

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-78 · Y-blades

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

$3,900 checked November 7, 2026

Check current price at WoodMaxx

Specs & tractor check →

START WITH THE DECISION

Consider TFMS50 for edges on a 30–50 PTO hp compactShortlist TFMS50 when side shift matters and a remote is free.

Consider FM-78 Y for wide grassShortlist FM-78 Y for grass on a 30–65 PTO hp tractor that 70 inches covers.

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.

Side shift against fixed

TFMS50 shifts about 14 inches hydraulically. FM-78 Y is fixed.

TFMS50 needs a rear remote.

49-inch against 70-inch

TFMS50 cuts 49 inches; FM-78 Y 70.

FM-78 Y covers wide compact tracks.

50-PTO-hp cap against 30–65 PTO hp

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

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

Category 1 against 1/2

TFMS50 is Category 1; FM-78 Y Category 1 and 2.

Category 2-only tractors fit FM-78 Y.

A CONDITIONAL SHORTLIST

Which direction makes sense?

Consider TFMS50 for edges on a 30–50 PTO hp compact

Shortlist TFMS50 when side shift matters and a remote is free.

Check current price at TMG Industrial Prepare questions for the seller

Consider FM-78 Y for wide grass

Shortlist FM-78 Y for grass on a 30–65 PTO hp tractor that 70 inches covers.

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-78 Y: the page lists 710 lb mower-only plus a 39-lb shaft; the manual gives 880 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 fixed FM-78 page: exact black/Y option, USD price, blade guidance and conflictsProduct page: fixed FM-78 black/Y option SKU FM-78-0007, 30–65 PTO hp, 70-in. cut, 710 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 current manual index: Models 2025 to current