Farmry WCAP5 PRO vs WoodMaxx WM-8M: gravity or mechanical feed?
WCAP5 PRO feeds by gravity; WM-8M uses a powered mechanical roller with a fixed forward speed and stop control. Neither needs tractor hydraulics. WM-8M also has a larger opening, but its full-capacity claim requires substantially more PTO power than its operating minimum. Start with the material pile and the feed controls you want to use.
By Acreage Equipment · Reviewed November 8, 2026 · Specification research, not a field test
Consider WCAP5 PRO for a gravity-fed five-inch shortlistShortlist the PRO when the material is within its confirmed conditions, gravity feed suits the work and the resolved Category 1/1N power band matches the tractor.
Consider WM-8M when a mechanical roller is the priorityShortlist WM-8M when fixed-speed powered feeding is useful and its power-dependent material allowance fits the pile.
Prices shown on the product cards retain their original check dates. Prices were not refreshed for this comparison, and no purchase-cost ranking is made. Request current itemized quotes for the exact configuration, shaft, setup and delivery. Open your saved comparison →
The differences that matter.
01
Gravity feed versus a fixed-speed roller
WCAP5 PRO uses an inclined gravity hopper and lists no hydraulic system. WM-8M drives its roller through a belt-driven oil-bath gearbox and mechanical clutch; the manufacturer FAQ specifies 58 ft/min forward feed and stop. This is not variable hydraulic feed or a documented powered-reverse function.
Choose the control arrangement deliberately. WM-8M is a candidate when a powered roller is wanted without a hydraulic circuit; Farmry avoids that roller drive. Neither choice establishes an easier or faster job without considering the actual branches.
Farmry’s Category 1 instructions specify 15–45 PTO hp, while its Category 1N section says 20–50 PTO hp. WM-8M’s current page specifies a 19 PTO hp minimum without a finite maximum. Its 50+ PTO hp full-capacity condition is not a maximum tractor rating.
A tractor near Farmry’s limits needs the hitch-specific conflict resolved. A tractor above 45 PTO hp is not automatically approved for WM-8M simply because that page omits a ceiling; obtain the permitted upper limit for the delivered machine.
Five-inch capacity versus a conditional eight-inch claim
WCAP5 PRO lists a 5-inch maximum diameter and a 5 × 8-inch cutter opening. WM-8M lists an 8 × 8-inch opening. WoodMaxx associates 19 PTO hp with 4-inch hardwood or 6-inch softwood, and its FAQ limits the 8-inch full-capacity statement to softwood at 50+ PTO hp. No equivalent PRO-specific wet/dry or full-diameter-at-minimum-power condition was established.
WM-8M is worth investigating for a pile containing material above 5 inches, provided species and available power meet the confirmed conditions. Do not promise 8-inch hardwood at 19 PTO hp or transfer the standard WCAP5’s wet/dry ratings to the PRO.
WCAP5 PRO documents 0° and 180° discharge positions. WM-8M documents a 360° swiveling discharge chute. Both have two reversible flywheel knives and a separate bed or fixed knife, so knife count does not explain the difference in chute placement.
WM-8M’s adjustable chute is relevant when the collection area cannot be served by Farmry’s two directions. Confirm allowed stops and discharge clearance; an arc specification does not establish throwing distance or trailer-loading performance.
Category 1N/1 evidence versus Category 1/2 mounting
Farmry’s technical table and manual list Category 1N and 1, plus Category 1 quick-hitch mounting; its broader Category 2 marketing claim conflicts. WM-8M lists Category 1 or 2, but quick-hitch compatibility is Category 1 only. WoodMaxx also calls for special top-link hardware on named quick hitches and a longer or Premium shaft for quick-hitch use.
A Category 2 tractor has clearer mounting evidence for WM-8M. For either machine, have the seller identify the included pins, bushings, top link and shaft for the actual tractor; a quick-hitch label is not a completed driveline installation.
Different reference loads, with incomplete inclusion details
Farmry lists 386 lb product weight and 434 lb shipping weight, without settling whether the product figure includes the shaft. WM-8M lists 775 lb total weight on the three-point hitch, also without complete shaft/fluid scope, and contradictory shipping figures of 950 and 990 lb.
The WM-8M requires a substantially different load and unloading discussion, but subtracting these reference figures does not yield a verified difference in complete operating load. Obtain both assembled weights and separate freight details before arranging delivery.
Consider WCAP5 PRO for a gravity-fed five-inch shortlist
Shortlist the PRO when the material is within its confirmed conditions, gravity feed suits the work and the resolved Category 1/1N power band matches the tractor. Check whether the two discharge positions serve the site and confirm the complete load with its supplied shaft.
Consider WM-8M when a mechanical roller is the priority
Shortlist WM-8M when fixed-speed powered feeding is useful and its power-dependent material allowance fits the pile. Confirm the stop procedure, upper power limit, hitch package and operating load; do not order expecting hydraulic speed control or powered reverse.
WCAP5 PRO has conflicting Category 1 and Category 1N power bands, plus Category 2 marketing language that is not supported by its technical table or manual. Its 50 HP gearbox rating is a component rating, not a reconciled tractor ceiling.
The PRO manual reverses the small cutter opening and large hopper labels; its product dimensions are 52 × 43.3 × 55.9 inches versus 52 × 47 × 56 on the page. Use confirmed physical openings and delivered measurements. The standard WCAP5’s material-condition ratings are not applied to the PRO.
WM-8M’s page and manual contain WM-8H/hydraulic language despite the model-specific mechanical gearbox, clutch and fixed feed described by its page, FAQ and parts list. The 3/20 manual’s printed p24 mentions a hydraulic control valve; obtain corrected model-specific operating instructions.
WM-8M’s broad 8-inch introduction is narrowed to softwood at 50+ PTO hp in the manufacturer FAQ. Its 775 lb reference load has incomplete inclusion details and its shipping figures disagree. No finite maximum horsepower or complete operating weight is inferred.
Official product pages, the WoodMaxx FAQ and manual links were reviewed on November 8, 2026. Manual references are Farmry Rev 1.4 and the WoodMaxx WM-8M manual marked 3/20. Conflicting hitch, capacity and copied hydraulic wording are identified below.
FOLLOW THE NUMBERS
Sources & documentation
Research record reviewed November 8, 2026. Confirm the current manual and the exact revision supplied with your machine.
