Kubota MX5400 · FLAIL MOWERS
The MX5400 HST’s 46.5 PTO hp is too high for FM62’s 45-hp maximum, even though its 55-inch cut is modest. Compare 60-, 70- and 72-inch choices against Kubota’s separate 72-inch cutting-width and 1,100-lb flail limits before deciding how much mower to buy.
By Acreage Equipment · Reviewed November 8, 2026 · Specification research, not a field test
PUT THIS GUIDE TO WORK
See published mismatches and the checks still needed.
BEST MATCHES FOR THE MX5400
9 of 23 flail mowers we track pass the published power, hitch and speed screen. Each still has a detail to confirm with the seller.
Flail mowerWoodMaxx
70″ cutting width, inches · 30–65 PTO hp · Hammer blades only
Confirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit.
Flail mowerLand Pride
60″ cutting width · 33–80 tractor hp · engine/PTO basis unspecified
Confirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit.
Flail mowerLand Pride
72″ cutting width · 42–80 tractor hp · engine/PTO basis unspecified
Confirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit.
Flail mowerFarmer-Helper
48″ cutting width, inches · 22–65 PTO hp on current page; linked-manual basis/limit conflicts
Confirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit.
Flail mowerTMG Industrial
60″ cutting width · 30–60 hp · basis unclear
Confirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit.
Flail mowerFarmer-Helper
60″ cutting width, inches · 25–65 PTO hp on current page; linked-manual basis/limit conflicts
Confirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit.
3 more possible options in the full comparison table.
THE DECISION IN NUMBERS
Tractor reference: U.S. 4WD HST ROPS, 46.5 PTO hp. TC860-1971-9 printed p31 supplies the 72-inch / 1,100-lb flail limits; verify that manual against the actual tractor. No listed product is a confirmed pairing.
Scroll the table sideways on smaller screens.
| Mower / delivered blade option | Published power requirement | Width against Kubota’s 72-inch maximum | Result and remaining question |
|---|---|---|---|
| FM62 hammer | 24–45 PTO hp | 55-inch cut; within width limit | 46.5 exceeds the power maximum by 1.5 hp. A narrow deck does not remove that exclusion. |
| FM78 hammer, fixed | 30–65 PTO hp | 70-inch cut; 2 inches below maximum | Power and width are within their stated bounds. Confirm complete load and actual Category 1/2 hardware. |
| FM2560 hammer | 33–80 tractor hp; basis unstated | 60-inch cut; 12 inches below maximum | 46.5 PTO and 57 gross engine are numerically inside; the required power basis and complete hammer mass remain unknown. |
| FM2572 hammer | 42–80 tractor hp; basis unstated | 72-inch cut; exactly the maximum | No extra width allowance is implied. Confirm the hammer operating load against 1,100 lb, not the hydraulic lift rating. |
| FM2584 hammer | 49–80 tractor hp; basis unstated | 84-inch cut; exceeds maximum by 12 inches | Outside the documented flail width limit, regardless of resolving its power basis. |
The FM62 hammer’s published band is 24–45 PTO hp. The MX5400 HST supplies 46.5, so the mismatch is at the upper end. Its 57 gross engine hp does not belong in that calculation. FM62’s Y option also has a 45-PTO-hp ceiling, so changing blade style does not resolve the maximum. FM78 hammer instead lists 30–65 PTO hp with a 70-inch cut. These are different published requirements, not evidence that every larger mower will fit or that an operating adjustment can waive a maximum.
FM2560 cuts 60 inches; FM2572 cuts 72. Their overall widths are 72 and 84 inches respectively. Compare the cutting edges with the tractor’s actual tire spacing, and the overall envelope with gates and storage. Kubota’s manual limit is cutting width, so FM2572’s 84-inch overall envelope is not itself an 84-inch cut. Land Pride’s 33–80 and 42–80 requirements do not identify engine or PTO power. Both tractor ratings are numerically inside those bands, but the seller still needs to define the requirement for the ordered hammer rotor and material.
Kubota’s 2,310-lb lift figure at 24 inches is larger than its 1,100-lb flail limit, and the two numbers answer different questions. FM2572’s manual lists 1,040 lb for a standard unit with a duckfoot rotor, separately from a 261-lb hammer rotor assembly. Neither establishes the complete hammer operating weight. Do not add the rotor to a unit that already contains one. Obtain the assembled load with the selected shaft, fluids, rake and hardware, plus its center of gravity. FM78’s 880-lb manual reference also has unspecified inclusions and differs from the page’s weight basis.
TC860-1971-9 requires Kubota-sold or approved implements as well as compliance with its numeric limits. Ask the dealer to assess the exact mower and tractor serial. Category 1 is the documented standard tractor arrangement, with Category 2 equipment also described; this does not settle the mower’s pins, bushings or shaft geometry. The listed fixed mowers do not require a hydraulic side-shift circuit. FM2584 remains outside the 72-inch cut limit even if its 49-hp minimum were interpreted as engine power. Land Pride’s current 1.5-versus-2-inch hammer-capacity labels also need reconciliation; width is not a material-capacity guarantee.
THE SCREEN, WITH ITS LIMITS VISIBLE
No pairing below is manufacturer-confirmed. “Preliminary” still requires implement limits, load center, ballast, hitch geometry and shaft checks.
Initial specification screen only. Scroll the table on small screens. Read the product page for every remaining check.
| Attachment | U.S. HST · 4WD · three range · ROPS · TC860-1971-9 reference46.5 PTO hp |
|---|---|
| Farmry LFS45 →355 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18 | Published mismatchBoth engine (57) and PTO (46.5) horsepower exceed the published 35 hp maximum. |
| Farmry LFS53 →395 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18 | Published mismatchBoth engine (57) and PTO (46.5) horsepower exceed the published 35 hp maximum. |
| Farmry LFS61 →421 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18 | Published mismatchBoth engine (57) and PTO (46.5) horsepower exceed the published 35 hp maximum. |
| TMG Industrial TMG-TFM60 →650 lb · Product-page operation weight; manual gives conflicting 270 kg (about 595 lb) | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| Farmry LFP47 →464 lb · 464 lb including PTO shaft on the product page; current Rev 1.3 manual lists 210 kg / 463.7 lb. Shipping weight is a separate 671 lb. | Published mismatchBoth engine (57) and PTO (46.5) horsepower exceed the published 45 hp maximum. |
| TMG Industrial TFMS50 →660 lb · Product-page operation weight: 660 lb. Manual structure weight: 300 kg (about 661 lb); shaft and fluid inclusion are not explicit. Shipping weight: 770 lb. | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| WoodMaxx FM-54 · Y-blades →408 lb · Current 2025-and-newer manual p40 lists 408 lb product weight without stating shaft inclusion. Page instead says 410 lb mower-only plus a 39 lb shaft. Do not treat 408 lb as a verified complete operating assembly; confirm delivered Y-blade weight. Shipping page figure is 500 lb. | Published mismatch46.5 PTO hp exceeds the published 25 hp range. |
| WoodMaxx FM-62H · Hammer blades →860 lb · Current 2025-and-newer manual, printed p40 / PDF p41: 860 lb product weight; shaft/oil/packaging inclusion is unstated. Page instead lists 716 lb mower-only plus a 39 lb shaft. Shipping is separately labeled 860 lb. Do not treat the manual number as verified complete operating weight; confirm delivered hammer assembly. | Published mismatch46.5 PTO hp exceeds the published 45 hp range. |
| WoodMaxx FM-78H · Hammer blades →968 lb · Current 2025-and-newer manual, printed p40 / PDF p41: 968 lb product weight; shaft/oil/packaging inclusion is unstated. Page instead lists 804 lb mower-only plus a 39 lb shaft. Shipping is separately labeled 1000 lb. Do not treat the manual number as verified complete operating weight; confirm delivered hammer assembly. | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| WoodMaxx FM-62 · Hammer blades →774 lb · Current 2025-and-newer manual printed p40 / PDF p41 lists 774 lb product weight without shaft/oil/packaging inclusion. Page lists 641 lb mower-only plus a 39 lb shaft; shipping is separately labeled 800 lb. Retain these distinct bases and confirm complete operating weight for the delivered hammer assembly. | Published mismatch46.5 PTO hp exceeds the published 45 hp range. |
| WoodMaxx FM-78 · Hammer blades →880 lb · Current 2025-and-newer manual printed p40 / PDF p41 lists 880 lb product weight without shaft/oil/packaging inclusion. Page lists 710 lb mower-only plus a 39 lb shaft; shipping is separately labeled 900 lb. Retain these distinct bases and confirm complete operating weight for the delivered hammer assembly. | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| Farmer-Helper FH-EFGC125 · Hammer blades →Operating weight unconfirmed · Complete operating weight is unverified. Current page: 576 lb “Weight” and 624 lb “Crated Weight.” Linked Rev 12-12-17 manual p23: 600 lb “Weight” and 635 lb crated. Product-weight shaft/oil/assembly inclusions are unstated. Keep these separate; do not use crate weight or silently choose one product figure as an operating load. | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| Farmer-Helper FH-EFGC155 · Hammer blades →Operating weight unconfirmed · Complete operating weight is unverified. Current page: 741 lb “Weight” and 789 lb “Crated Weight.” Linked Rev 12-12-17 manual p23: 720 lb “Weight” and 755 lb crated. Product-weight shaft/oil/assembly inclusions are unstated. Keep these separate; do not use crate weight or silently choose one product figure as an operating load. | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| WoodMaxx FM-62 · Y-blades →Operating weight unconfirmed · Complete Y-configuration operating weight is unverified. Current manual p40 gives 774 lb generic product weight without shaft/oil or blade-specific inclusion. Page gives 641 lb mower-only plus 39 lb shaft and separately 800 lb shipping. These bases conflict or lack scope; none substitutes for an assembled Y operating load. | Published mismatch46.5 PTO hp exceeds the published 45 hp range. |
| WoodMaxx FM-78 · Y-blades →Operating weight unconfirmed · Complete Y-configuration operating weight is unverified. Current manual p40 gives 880 lb generic product weight without shaft/oil or blade-specific inclusion. Page gives 710 lb mower-only plus 39 lb shaft and separately 900 lb shipping. These bases conflict or lack scope; none substitutes for an assembled Y operating load. | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| Land Pride FM2560 · hammer rotor →Operating weight unconfirmed · Manual p39 specifies 965 lb for the standard unit with a duckfoot rotor; the brochure lists 929 lb without a rotor/inclusion basis. The separate hammer-rotor assembly is 222 lb. No complete hammer operating mass or shipping mass is established. Do not add the rotor to an already rotor-inclusive unit weight or substitute these references for the operating load. | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| Land Pride FM2572 · hammer rotor →Operating weight unconfirmed · Manual p39 specifies 1,040 lb for the standard unit with a duckfoot rotor; the brochure lists 1,040 lb without a rotor/inclusion basis. The separate hammer-rotor assembly is 261 lb. No complete hammer operating mass or shipping mass is established. Do not add the rotor to an already rotor-inclusive unit weight or substitute these references for the operating load. | Needs specification reviewConfirm the complete configured mower weight against the reviewed manual’s 1,100-lb flail limit, including applicable options and the manual’s scope. Hydraulic lift capacity does not replace this limit. |
| Land Pride FM2584 · hammer rotor →Operating weight unconfirmed · Manual p39 specifies 1,236 lb for the standard unit with a duckfoot rotor; the brochure lists 1,168 lb without a rotor/inclusion basis. The separate hammer-rotor assembly is 301 lb. No complete hammer operating mass or shipping mass is established. Do not add the rotor to an already rotor-inclusive unit weight or substitute these references for the operating load. | Published mismatchThe 84-inch cutting width exceeds the 72-inch flail-mower maximum in the reviewed tractor manual. Confirm the manual’s applicability to your exact tractor. |
| Blue Diamond Heavy Duty 403740 →1763 lb · 1,763 lb (800 kg) in the Aug-2025 spec sheet (without PTO) and the Feb-2026 manual p49. Add the PTO shaft for the operating load. | Published mismatchBoth engine (57) and PTO (46.5) horsepower are below the published 75 hp minimum. |
| Farmry HFS87 →1299 lb · 1,299 lb (589 kg) including PTO shaft on the product page and in the HFS manual Rev 1.6, printed p17. | Published mismatchThe 87-inch cutting width exceeds the 72-inch flail-mower maximum in the reviewed tractor manual. Confirm the manual’s applicability to your exact tractor. |
| Farmer-Helper FH-EF95 →330 lb · 330 lb retained, the heavier of the product page (325 lb) and the FH-EF manual p13 (330 lb); crated 360 lb. Neither says whether the included PTO shaft is counted. | Published mismatch46.5 PTO hp exceeds the published 45 hp range. |
| Farmer-Helper FH-EF105 →347 lb · 347 lb retained, the heavier of the product page (342 lb) and the FH-EF manual p13 (347 lb); crated 377 lb. Neither says whether the included PTO shaft is counted. | Published mismatch46.5 PTO hp exceeds the published 45 hp range. |
| Farmer-Helper FH-EF125 →390 lb · 390 lb retained, the heavier of the product page (390 lb) and the FH-EF manual p13 (383 lb); crated 438 lb. Neither says whether the included PTO shaft is counted. | Published mismatch46.5 PTO hp exceeds the published 45 hp range. |
For roughly six-foot cutting, does FM2572 offer useful setup choices over fixed FM-78?
Read the guide →FIELD GUIDETake the complete setup, not just a horsepower number, to the manufacturer.
Read the guide →FOLLOW THE NUMBERS
Research record reviewed November 8, 2026. Confirm the current manual and the exact revision supplied with your machine.