Kubota M5-091 · PTO WOOD CHIPPERS
Wallenstein rates BX72S at 50–85 engine hp and BX102S at 80–120, and the Kubota M5-091’s 92.5 gross hp is 7.5 over the first and inside the second. WoodMaxx’s four chippers, with no published maximum, fit too.
By Acreage Equipment · Reviewed November 14, 2026 · Specification research, not a field test
PUT THIS GUIDE TO WORK
See published mismatches and the checks still needed.
BEST MATCHES FOR THE M5-091
6 of 19 pto wood chippers we track pass the published power, hitch and speed screen. Each still has a detail to confirm with the seller.
PTO chipperWallenstein
10″ max. chip diameter · 80–120 engine hp · official U.S. page
Confirm the correct attachment and driveline configuration for the tractor’s PTO speed; listed speed options are discrete settings.
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″ maximum chip diameter, inches · 20 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
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 chipperWallenstein
10″ max. chip diameter · 75–120 engine hp · current U.S. page (manual table: 80–120 hp for the BX102R)
Confirm the correct attachment and driveline configuration for the tractor’s PTO speed; listed speed options are discrete settings.
THE DECISION IN NUMBERS
Tractor reference: Kubota M5-091, January 2026 catalog; Category II; 4,630 lb at 24 in. (8-speed).
Scroll the table sideways on smaller screens.
| Chipper | Published requirement | On 76 PTO / 92.5 engine hp | Result |
|---|---|---|---|
| Wallenstein BX102S | 80–120 engine hp; Category II | Inside at 92.5 (12.5 over the minimum) | Fits |
| WoodMaxx MX-9900 / MX-8800 / WM-8M / WM-8H | 19–25 PTO hp minimum; 50+ for full capacity; no maximum; Category 1/2 | Inside; 26 over the 50+ line | Fits |
| Wallenstein BX102RI | 75–120 engine hp (page); hydraulic feed; 10-in. | BX102RI inside | Fits on page and manual; hydraulic remote or power pack |
| Wallenstein BX72S | 50–85 engine hp; Category I and II | 7.5 over on engine (PTO 9 under) | Excluded |
| Woodland Mills WC88 | 35 PTO hp minimum; Category 1 | Power inside; hitch mismatch | Excluded |
| All other chippers here | To 55 hp or less | Over | Excluded |
Wallenstein states BX72S’s range in engine horsepower. The M5-091’s 92.5 gross hp is 7.5 over it. Its 76 PTO hp would be inside, but this site screens a limit on the basis the maker states.
Wallenstein’s 10-inch BX102S runs 80–120 engine hp on a Category II hitch only, gravity-fed, at 1,143 lb. The M5-091’s 92.5 gross hp sits inside it, so the M5-091 trades BX72S for its larger sibling. Confirm the pins, the PTO shaft for 540 or 1,000 rpm, and front ballast for its weight.
WoodMaxx MX-9900 (9-inch, hydrostatic feed) lists 25 PTO hp minimum and 50+ for full capacity, with no maximum. The comparison below sets it against BX72S, which fits smaller utility tractors.
WoodMaxx publishes minimums and a 50+ full-capacity line but no maximum, so this site does not exclude the M5-091. Its 76 PTO hp is 26 over that line; ask which shear bolt or slip clutch the PTO shaft carries and whether it is rated for this tractor.
Kubota lists a Category II hitch with telescopic lower link ends. Category 1-only attachments such as Woodland Mills WC88 and Land Pride FM2560 would need bushings or a quick hitch approved in writing; this site screens them out.
Wallenstein’s current pages rate the 10-inch BX102RI (75–120 engine hp, Category II). Two hydraulic rollers pull material in at a set rate, and P3 PULSE reverses them when the rotor slows; they need 4–8 gpm from a rear remote or Wallenstein’s PTO-driven power pack. The Kubota M5-091’s 92.5 engine hp is inside the BX102RI’s range on both the page and the manual. Its published lift at 24 inches, 4,630 lb, carries the 1,950-lb BX102RI with 2,680 lb to spare. Wallenstein lists no price; ask a dealer.
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. M5-091 · F8/R8, F12/R12 electro-hydraulic shuttle · open station or cab76 PTO hp |
|---|---|
| Farmry WCAP5 →412 lb · Net weight WITH PTO shaft, manual Rev1.5 p20 | Published mismatch92.5 engine hp exceeds the published 45 hp range. |
| Farmry WCAP5 PRO →386 lb · Product weight, current manual Rev1.4 p13; whether PTO shaft is included in this weight is not stated | Published mismatch76 PTO hp exceeds the published 45 hp range. |
| Woodland Mills WC46 →587 lb · Product weight, 2024 operator manual Rev C p9 | Published mismatch76 PTO hp exceeds the published 30 hp range. |
| Woodland Mills WC68 →747 lb · Product weight, 2024 operator manual Rev C p9 | Published mismatch76 PTO hp exceeds the published 50 hp range. |
| Woodland Mills TFG55 PTO →346 lb · Product weight, Rev B manual p9 | Published mismatch76 PTO hp exceeds the published 30 hp range. |
| Woodland Mills WC88 →900 lb · Product weight: 900 lb in current linked 2022 Rev C manual, printed p9; shipping weight is 1,054 lb. The manual does not explicitly identify whether quoted product weight includes the PTO shaft or filled hydraulic oil. | Published mismatchThe attachment’s listed hitch categories do not overlap the tractor’s documented Category 2 interface. |
| WoodMaxx WM-8H →Operating weight unconfirmed · Operating weight is unverified in the current official product page and linked manual. The page lists 990 lb SHIPPING weight; do not use it as operating weight. Confirm weight with PTO shaft and a filled hydraulic tank. | Needs specification reviewConfirm the complete operating weight; a shipping weight cannot establish the attachment load. |
| WoodMaxx WM-8M →775 lb · Product page states 775 lb total weight on the three-point hitch; shaft/fluid inclusion is not explicit. Shipping sections conflict at 950 versus 990 lb. Confirm the delivered operating assembly and shipping revision. | Needs specification reviewResolve the conflicting published specifications for the exact model revision. |
| WoodMaxx MX-8800 →Operating weight unconfirmed · Complete operating weight is unverified. Current Rev D manual (printed p45 / pdf p46, technical specifications) states approximately 772 lb DRY weight; page separately states 1,004 lb SHIPPING weight. Shaft inclusion in dry weight is not explicit. Do not substitute either figure for a confirmed shaft/oil-inclusive operating load. | Needs specification reviewConfirm the complete operating weight; a shipping weight cannot establish the attachment load. |
| WoodMaxx MX-9900 →Operating weight unconfirmed · Complete operating weight is unverified. Current Rev C manual (printed p42 / pdf p43, technical specifications) states approximately 816 lb DRY weight; page separately states 1,048 lb SHIPPING weight. Shaft inclusion in dry weight is not explicit. Do not substitute either figure for a confirmed shaft/oil-inclusive operating load. | Needs specification reviewConfirm the complete operating weight; a shipping weight cannot establish the attachment load. |
| Farmer-Helper FH-BX42 →Operating weight unconfirmed · Complete operating weight is unverified. Current index-linked manual p2 lists 430 lb net and 450 lb shipping. Current product/series pages instead list 423 lb net and 458 lb shipping. Net-weight shaft/assembly inclusions are unstated; none is substituted for a verified operating load. | Published mismatch76 PTO hp exceeds the published 45 hp range. |
| Farmer-Helper FH-BX62S →Operating weight unconfirmed · Complete operating weight is unverified. Current index-linked manual p2: 830 lb net / 860 lb shipping. Current series page: 835 lb net / 915 lb gross. Product page calls 835 lb both total and gross; older product-linked manual p38 gives 797 lb net / 850 lb gross. Shaft/assembly inclusions are unstated, so no reference is used as operating weight. | Published mismatch76 PTO hp exceeds the published 45 hp range. |
| Wallenstein BX36S →Operating weight unconfirmed · Official page Total Weight and Jan-2025 manual Weight: 395 lb. Neither states whether the supplied shaft and all operating equipment are included; complete operating and separate shipping weights remain unverified. | Published mismatch92.5 engine hp exceeds the published 30 hp range. |
| Wallenstein BX52S →Operating weight unconfirmed · Official page Total Weight and Jan-2025 manual Weight: 505 lb. Neither states whether the supplied shaft and all operating equipment are included; complete operating and separate shipping weights remain unverified. | Published mismatch92.5 engine hp exceeds the published 55 hp range. |
| Wallenstein BX72S →Operating weight unconfirmed · Current official page Total Weight and Jan-2025 manual Weight: 728 lb. Neither defines complete shaft-inclusive operating mass or a separate shipping weight. Confirm the assembled operating load; do not relabel 728 lb as dry or shipping weight. | Published mismatch92.5 engine hp exceeds the published 85 hp range. |
| Wallenstein BX102S →1143 lb · Total Weight 1143 lb (519 kg) on the current page and in the Jan-2025 BX-S manual. Neither says whether the PTO shaft is included; confirm the assembled operating load. | Needs specification reviewConfirm the correct attachment and driveline configuration for the tractor’s PTO speed; listed speed options are discrete settings. |
| Wallenstein BX52RI →845 lb · Total weight 845 lb on the current page and operating weight 845 lb in the BXR manual §10.1. Neither says whether the PTO shaft is included. | Published mismatch92.5 engine hp exceeds the published 55 hp range. |
| Wallenstein BX72RI →1300 lb · Total weight 1,300 lb on the current page and operating weight 1,300 lb in the BXR manual §10.1. Neither says whether the PTO shaft is included. | Published mismatch92.5 engine hp exceeds the published 85 hp range. |
| Wallenstein BX102RI →1950 lb · Total weight 1,950 lb on the current page and operating weight 1,950 lb in the BXR manual §10.1. Neither says whether the PTO shaft is included. | Needs specification reviewConfirm the correct attachment and driveline configuration for the tractor’s PTO speed; listed speed options are discrete settings. |
Is MX-9900’s larger opening and operator-controlled hydrostatic feed useful for the intended wood and power?
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 14, 2026. Confirm the current manual and the exact revision supplied with your machine.