MX-9900

THE BUYING PERSPECTIVE

Know before you order.

• 25 PTO hp is an operating minimum, not a promise of the full 9-inch diameter at that power.
• The page claims 5-inch hardwood or 7-inch softwood at 25 PTO hp. It associates full 9-inch capacity with “50+ HP”; the basis is not repeated in that phrase. Preserve the exact label and ask WoodMaxx whether it means PTO power.
• No finite maximum tractor horsepower is stated in the reviewed exact-model page or current manual. Null maximum is not unlimited-power approval; do not turn the 50+ capacity statement into a ceiling.
• Manual dry weight is approximately 816 lb; page shipping weight is 1,048 lb. Neither verifies a complete operating load with shaft and oil, so operating weight remains unverified.
• The 540 rpm requirement is tractor PTO input. The 1,200 rpm figure describes the flywheel.
• Feed speed and direction are set by the operator’s control bar. Automatic load sensing or automatic reverse has not been verified; “auto feed stop” marketing does not establish either feature.
• The self-contained hydrostatic feed system uses conventional 10W-40 motor oil. The manual rejects synthetic, universal tractor and hydraulic oils for this circuit.
• Current page and manual say factory oil is included/filled; a lower page paragraph still instructs an initial two-quart fill. Confirm the delivered fill state and check the correct level rather than blindly adding oil.
• Manual nominal capacity is two quarts, while lubrication/service instructions specify 2–2.5 quarts with a level/headspace check. Keep nominal capacity separate from initial fill and top-up instructions.
• Page gas-spring downforce is 175 lb; current manual says 120 lb. Do not use a settled downforce figure or performance claim until the revision is confirmed.
• Standard Cat 1/2 mounting and Cat 1 quick-hitch marketing do not prove exact tractor geometry, supplied bushings or shaft clearance. Confirm them for the delivered configuration.
• The manual lists approximately 220 lb flywheel weight, while page sections list 225 lb; manual roller diameter is 8 inches, while one page feature says 8.25 inches. Do not use the conflicting values as comparative performance evidence.

Published specifications

Power requirement

25 PTO hp minimum; maximum not stated

Rear PTO

540 rpm

Three-point hitch

Category 1 / 2

Maximum chip diameter, inches

9 inches

Unit weight

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.

Hydraulics

Self-contained hydrostatic feed; no tractor remote circuit is required. Current manual specifies conventional 10W-40 motor oil, nominal two-quart capacity, and separate service/fill guidance. Confirm shipped oil state and follow the delivered manual; tractor GPM/PSI requirements do not apply to this onboard circuit.

Accessories & setup

A 32-inch Premium PTO shaft with shear-bolt protection is listed as included; the manual still requires tractor-specific shaft sizing. Cat 1 quick-hitch/bushing accessories are offered separately. Confirm Cat 2 mounting parts and exact quick-hitch geometry. Factory oil is advertised, with conflicting older fill wording retained in sources. Folding feed bin and hinged infeed hopper/service access are listed.

Specifications are manufacturer-published, not measured by Acreage Equipment. A shipping weight is not treated as operating weight.