PTO chipperWoodland Mills
WC68
6″ max. chip diameter · 20–50 PTO hp
Confirm implement weight limits, center of gravity, front ballast and stability in your tractor manual.
Massey Ferguson · COMPACT TRACTOR ATTACHMENTS
The MF 1M.40 has a 39.4-hp Iseki and the 1M.35’s 2,535-lb lift. Its mechanical version is rated exactly 30.0 PTO hp, the minimum for WoodMaxx’s FM-78 mowers and the maximum for Woodland Mills WC46 and TFG55; the HST version is 27.9, 2.1 short of FM-78.
By Acreage Equipment · Reviewed November 9, 2026 · Specification research, not a field test

PTO WOOD CHIPPERS FOR THE MF 1M.40
13 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
6″ max. chip diameter · 20–50 PTO hp
Confirm implement weight limits, center of gravity, front ballast and stability in your tractor manual.
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 chipperWoodMaxx
9″ maximum chip diameter, inches · 25 PTO hp minimum; maximum not stated
Confirm the complete operating weight; a shipping weight cannot establish the attachment load.
PTO chipperWoodMaxx
8″ max. chip diameter · 19 PTO hp minimum; maximum not stated
Resolve the conflicting published specifications for the exact model revision.
PTO chipperFarmer-Helper
6.5″ manual feed-opening short side, inches · 25–45 PTO hp in current index-linked manual; older capacity/range conflicts retained
Confirm the complete operating weight; a shipping weight cannot establish the attachment load.
7 more possible options in the full comparison table — see all.
FLAIL MOWERS FOR THE MF 1M.40
19 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 mowerWoodMaxx
70″ cutting width, inches · 30–65 PTO hp · Hammer blades only
27.9 PTO hp is below the 30 hp minimum.
Flail mowerWoodMaxx
55″ cutting width, inches · 24–45 PTO hp · Hammer blades only
Resolve the conflicting published specifications for the exact model revision.
Flail mowerWoodMaxx
55″ cutting width, inches · 20–45 PTO hp · Y-blades only
Confirm the complete operating weight; a shipping weight cannot establish the attachment load.
Flail mowerFarmer-Helper
60″ cutting width, inches · 25–65 PTO hp on current page; linked-manual basis/limit conflicts
Confirm the complete operating weight; a shipping weight cannot establish the attachment load.
Flail mowerFarmer-Helper
48″ cutting width, inches · 22–65 PTO hp on current page; linked-manual basis/limit conflicts
Confirm the complete operating weight; a shipping weight cannot establish the attachment load.
Flail mowerTMG Industrial
60″ cutting width · 30–60 hp · basis unclear
Ask the manufacturer whether the horsepower range means engine or PTO power.
13 more possible options in the full comparison table — see all.
U.S. MF 1M.40 · 12x12 power shuttle · 4WD · ROPS · independent PTO
Current U.S. Massey Ferguson MF 1M.40 from the November 2025 1M Series spec sheet and the current M Series page. Base weight 3,472 lb ROPS (3,428 on the page), 3,858–3,869 lb cab; 67.5 in. minimum width.
U.S. MF 1M.40 · 3-range Servo-HST · 4WD · ROPS · independent PTO
Current U.S. Massey Ferguson MF 1M.40 from the November 2025 1M Series spec sheet and the current M Series page. Base weight 3,472 lb ROPS (3,428 on the page), 3,858–3,869 lb cab; 67.5 in. minimum width.
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 FM-78 from 30 PTO hp. Massey Ferguson rates the mechanical MF 1M.40 at exactly 30.0 and the HST at 27.9. FM-62, Farmer-Helper FH-EFGC, TMG and Farmry LFP47 fit both versions with room.
Read the guide →FIELD GUIDEWoodland Mills rates WC46 and TFG55 to 30 PTO hp; the mechanical MF 1M.40 has exactly 30.0, and the HST 27.9. Woodland Mills WC68, WoodMaxx’s 8- and 9-inch chippers and the 45-PTO-hp chippers fit both with room. WC88 (35) is out.
Read the guide →