PTO chipperWoodland Mills
WC46
4″ max. chip diameter · 15–30 PTO hp
Confirm implement weight limits, center of gravity, front ballast and stability in your tractor manual.
Case IH · COMPACT TRACTOR ATTACHMENTS
The Case IH Farmall 25A has 24.6 engine hp, 19.2 PTO hp with the 12x12 mechanical shuttle and 17.1 with the HST, and a 1,433-lb lift 24 inches behind the pin. The mechanical version clears WoodMaxx’s 19-PTO-hp WM-8 minimum by 0.2; the HST does not.
By Acreage Equipment · Reviewed November 9, 2026 · Specification research, not a field test

PTO WOOD CHIPPERS FOR THE FARMALL 25A
9 of 19 pto wood chippers we track pass the published power, hitch and speed screen on at least one configuration. “Specs line up” cards come first.
PTO chipperWoodland Mills
4″ max. chip diameter · 15–30 PTO hp
Confirm implement weight limits, center of gravity, front ballast and stability in your tractor manual.
PTO chipperFarmry
5″ max. chip diameter · 15–45 engine hp
Confirm implement weight limits, center of gravity, front ballast and stability in your tractor manual.
PTO chipperFarmry
5″ max. chip diameter · 15–45 PTO hp
Resolve the conflicting published specifications for the exact model revision.
PTO chipperWoodMaxx
8″ max. chip diameter · 19 PTO hp minimum; maximum not stated
17.1 PTO hp is below the 19 hp minimum.
PTO chipperWoodland Mills
5″ max. chip diameter · 12–30 PTO hp in table; manual hitch paragraph says 15–30 — resolve before selection
Resolve the conflicting published specifications for the exact model revision.
PTO chipperFarmer-Helper
4″ published feed-capacity short side, inches · 15–45 PTO hp in current index-linked manual; older/page conflicts retained
Confirm the complete operating weight; a shipping weight cannot establish the attachment load.
3 more possible options in the full comparison table — see all.
FLAIL MOWERS FOR THE FARMALL 25A
6 of 23 flail mowers we track pass the published power, hitch and speed screen on at least one configuration. Each still has a detail to confirm with the seller.
Flail mowerFarmry
53.1″ cutting width · 15–35 hp · basis unclear
Ask the manufacturer whether the horsepower range means engine or PTO power.
Flail mowerWoodMaxx
47″ cutting width · 15–25 PTO hp · Y-blades only
Resolve the conflicting published specifications for the exact model revision.
Flail mowerFarmry
45.3″ cutting width · 15–35 hp · basis unclear
Ask the manufacturer whether the horsepower range means engine or PTO power.
Flail mowerFarmry
61″ cutting width · 15–35 hp · basis unclear
Ask the manufacturer whether the horsepower range means engine or PTO power.
Flail mowerFarmer-Helper
37″ cutting width, inches · 15–45 PTO hp on the product page; manual lists the 15-PTO-hp minimum and a 45-hp gearbox
Confirm the tractor’s PTO hp is inside the 45-hp limit and above the mower’s minimum on the exact transmission.
Flail mowerFarmer-Helper
41″ cutting width, inches · 16–45 PTO hp on the product page; manual lists the 16-PTO-hp minimum and a 45-hp gearbox
Confirm the tractor’s PTO hp is inside the 45-hp limit and above the mower’s minimum on the exact transmission.
U.S. Farmall 25A · 12x12 mechanical shuttle with synchro shift · MFD · ROPS · independent PTO
Current U.S. Case IH Farmall 25A (non-cab, MFD) from the Case IH specification sheet and the current model page. 2,469 lb without ballast (MFD). Mid PTO 2,000 rpm optional.
U.S. Farmall 25A · hydrostatic · MFD · ROPS · independent PTO
Current U.S. Case IH Farmall 25A (non-cab, MFD) from the Case IH specification sheet and the current model page. 2,469 lb without ballast (MFD). Mid PTO 2,000 rpm optional.
FOLLOW THE NUMBERS
Research record reviewed November 9, 2026. Confirm the current manual and the exact revision supplied with your machine.
FROM YOUR TRACTOR TO THE JOB
WoodMaxx rates WM-8H and WM-8M from 19 PTO hp; the mechanical-shuttle 25A has 19.2 and the HST 17.1. Woodland Mills WC46 and TFG55, Farmry WCAP5 and WCAP5 Pro, Farmer-Helper FH-BX42 and Wallenstein BX36S and BX52S fit both versions.
Read the guide →FIELD GUIDEFarmry rates its LFS mowers at 15–35 hp and WoodMaxx rates FM-54 with Y-blades at 15–25 PTO hp. Both 25A versions are inside both. WoodMaxx FM-62 Y (20 PTO hp) is 0.8 short on the mechanical tractor, and everything else starts at 22 hp or more.
Read the guide →