KIOTI CK2620 · PTO WOOD CHIPPERS
The base CK2620’s transmission changes the WoodMaxx power screen: the manual tractor has 19.5 PTO hp, while CK2620H has 18.7. They sit on opposite sides of the published 19-PTO-hp minimum. Both remain below WC68’s 20-PTO-hp minimum, so the shared 24.5 engine-hp badge is not a useful shortcut.
By Acreage Equipment · Reviewed November 7, 2026 · Specification research, not a field test
PUT THIS GUIDE TO WORK
See published mismatches and the checks still needed.
BEST MATCHES FOR THE CK2620
9 of 19 pto wood chippers 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.
PTO chipperWoodland Mills
4″ max. chip diameter · 15–30 PTO hp
Confirm the conflicting tractor specifications in your serial-specific manual; official source values differ.
PTO chipperWoodMaxx
8″ max. chip diameter · 19 PTO hp minimum; maximum not stated
18.7 PTO hp is below the 19 hp minimum.
PTO chipperWoodMaxx
8″ max. chip diameter · 19 PTO hp minimum; maximum not stated
18.7 PTO hp is below the 19 hp minimum.
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.
PTO chipperFarmry
5″ max. chip diameter · 15–45 engine hp
Confirm the conflicting tractor specifications in your serial-specific manual; official source values differ.
PTO chipperFarmry
5″ max. chip diameter · 15–45 PTO hp
Resolve the conflicting published specifications for the exact model revision.
3 more possible options in the full comparison table.
THE DECISION IN NUMBERS
Base U.S. CK2620 manual and CK2620H HST only. KIOTI evidence retains its November 6, 2026 check date; WoodMaxx technical pages were checked November 7. The explicit WM-8H 19 PTO-hp statement is used while its lower 15 hp bullet remains unresolved. Numerical range results are not manufacturer-confirmed pairings.
Scroll the table sideways on smaller screens.
| Chipper | Published power requirement | Manual: 19.5 PTO hp | HST: 18.7 PTO hp |
|---|---|---|---|
| WC46 | 15–30 PTO hp | Inside range; below over-20 full-feed condition | Inside range; below over-20 full-feed condition |
| WM-8H | 19 PTO hp minimum; conflicting 15 hp bullet | 0.5 above explicit minimum; conflict still open | 0.3 below explicit minimum; conflict still open |
| WM-8M | 19 PTO hp minimum; maximum unstated | 0.5 above minimum; other checks remain | 0.3 below minimum |
| WC68 | 20–50 PTO hp | 0.5 below minimum | 1.3 below minimum |
The KIOTI brochure assigns 19.5 PTO hp to CK2620 and 18.7 to CK2620H. Against a 19 hp minimum, that is 0.5 hp above versus 0.3 below. Neither margin should be erased by rounding. This page covers those base U.S. CK20 configurations, not CK2620SE/SEH, preceding CK10 or other similarly named tractors. Identify the actual model before discussing a chipper.
WM-8H’s headline and introduction use 19 PTO hp, while a lower Specs bullet says 15 hp without stating its basis. Keep that disagreement open and obtain WoodMaxx’s requirement for the delivered revision. The table uses the explicit 19-PTO-hp statement, so CK2620H does not clear it. A missing published maximum is also not approval for unlimited tractor power.
WM-8H uses variable hydraulic feed; WM-8M uses fixed mechanical feed. Neither needs a tractor rear hydraulic feed circuit. On the manual CK2620 that reaches their stated minimum, ask the maker how each feed system suits the actual branch size, species and condition. The advertised eight-inch capacity is not a promise of full-size processing at minimum power. No throughput or feed-effort test is available here.
Both PTO ratings fall inside WC46’s 15–30 hp range, but neither meets its over-20-PTO-hp condition for full four-inch logs at full feed speed. WC68’s 20 hp operating minimum is not reached by either. That keeps the distinction clear: an unmet full-feed condition on WC46 is different from an unmet operating minimum on WC68.
WM-8H’s 990 lb shipping figure is not a verified operating weight. WM-8M lists 775 lb on the three-point hitch, but shaft inclusion needs confirmation. KIOTI’s brochure gives 1,631 lb at 24 inches aft; the CK2620H webpage also gives 1,500 lb under Hitch without a distance. Keep that conflict visible and request serial-specific limits and complete load-center information. Subtracting either chipper weight from a lift rating would not establish carrying approval.
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 | Manual19.5 PTO hp | HST, three ranges18.7 PTO hp |
|---|---|---|
| Farmry WCAP5 →412 lb · Net weight WITH PTO shaft, manual Rev1.5 p20 | Needs specification reviewConfirm the conflicting tractor specifications in your serial-specific manual; official source values differ. | Needs specification reviewConfirm the conflicting tractor specifications in your serial-specific manual; official source values differ. |
| Farmry WCAP5 PRO →386 lb · Product weight, current manual Rev1.4 p13; whether PTO shaft is included in this weight is not stated | Needs specification reviewResolve the conflicting published specifications for the exact model revision. | Needs specification reviewResolve the conflicting published specifications for the exact model revision. |
| Woodland Mills WC46 →587 lb · Product weight, 2024 operator manual Rev C p9 | Needs specification reviewConfirm the conflicting tractor specifications in your serial-specific manual; official source values differ. | Needs specification reviewConfirm the conflicting tractor specifications in your serial-specific manual; official source values differ. |
| Woodland Mills WC68 →747 lb · Product weight, 2024 operator manual Rev C p9 | Published mismatch19.5 PTO hp is below the 20 hp minimum. | Published mismatch18.7 PTO hp is below the 20 hp minimum. |
| Woodland Mills TFG55 PTO →346 lb · Product weight, Rev B manual p9 | Needs specification reviewResolve the conflicting published specifications for the exact model revision. | Needs specification reviewResolve the conflicting published specifications for the exact model revision. |
| 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 mismatch19.5 PTO hp is below the 35 hp minimum. | Published mismatch18.7 PTO hp is below the 35 hp minimum. |
| 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. | Published mismatch18.7 PTO hp is below the 19 hp minimum. |
| 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. | Published mismatch18.7 PTO hp is below the 19 hp minimum. |
| 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. | Published mismatch19.5 PTO hp is below the 20 hp minimum. | Published mismatch18.7 PTO hp is below the 20 hp minimum. |
| 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. | Published mismatch19.5 PTO hp is below the 25 hp minimum. | Published mismatch18.7 PTO hp is below the 25 hp minimum. |
| 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. | Needs specification reviewConfirm the complete operating weight; a shipping weight cannot establish the attachment load. | Needs specification reviewConfirm the complete operating weight; a shipping weight cannot establish the attachment load. |
| 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 mismatch19.5 PTO hp is below the 25 hp minimum. | Published mismatch18.7 PTO hp is below the 25 hp minimum. |
| 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. | Needs specification reviewConfirm the correct attachment and driveline configuration for the tractor’s PTO speed; listed speed options are discrete settings. | Needs specification reviewConfirm the correct attachment and driveline configuration for the tractor’s PTO speed; listed speed options are discrete settings. |
| 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. | Needs specification reviewConfirm the correct attachment and driveline configuration for the tractor’s PTO speed; listed speed options are discrete settings. | Needs specification reviewConfirm the correct attachment and driveline configuration for the tractor’s PTO speed; listed speed options are discrete settings. |
| 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 mismatch24.5 engine hp is below the 50 hp minimum. | Published mismatch24.5 engine hp is below the 50 hp minimum. |
| 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. | Published mismatch24.5 engine hp is below the 80 hp minimum. | Published mismatch24.5 engine hp is below the 80 hp minimum. |
| 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 mismatch24.5 engine hp is below the 30 hp minimum. | Published mismatch24.5 engine hp is below the 30 hp minimum. |
| 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 mismatch24.5 engine hp is below the 45 hp minimum. | Published mismatch24.5 engine hp is below the 45 hp minimum. |
| 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. | Published mismatch24.5 engine hp is below the 75 hp minimum. | Published mismatch24.5 engine hp is below the 75 hp minimum. |
Is adjustable hydraulic feed worth the extra cost over fixed mechanical feed?
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 7, 2026. Confirm the current manual and the exact revision supplied with your machine.