THE TRADEOFFS, EXPLAINED

WoodMaxx MX-9900 vs Woodland Mills WC88: 9-inch opening and different power conditions

MX-9900 combines a 9-inch throat with a 25 PTO hp minimum; WC88 combines an 8-inch throat with a published 35–100+ PTO hp range. Those labels do not show which machine chips larger wood at a given tractor power. WoodMaxx’s full-capacity statement says “50+ HP” without repeating the basis, while Woodland Mills explicitly ties full 8-inch logs at full feed to over 60 PTO hp.

By Acreage Equipment · Reviewed November 7, 2026 · Specification research, not a field test

WoodMaxx MX-9900 PTO wood chipper

WoodMaxx

MX-9900

25 PTO hp minimum; maximum not stated · 9″ Maximum chip diameter, inches

$6,990 checked November 7, 2026

Check current price at WoodMaxx
Woodland Mills WC88 PTO wood chipper

Woodland Mills

WC88

35–100+ PTO hp · 8″ Maximum branch diameter, inches

$3,995 checked November 7, 2026

Check current price at Woodland Mills

START WITH THE DECISION

WoodMaxx MX-9900: when to shortlist itConsider when the 9-inch opening, Cat 2 mounting route or hinged service layout addresses a specific need, with documented power above the minimum and a confirmed complete operating load.

Woodland Mills WC88: when to shortlist itConsider when the 8-inch maximum and Cat 1 mounting meet the work and its lower observed price matters, after checking the actual tractor, load and explicit full-feed power condition.

Read the evidence behind the choice ↓

MX-9900 current November 7, 2026 sale observation; WC88 November 7 observation retained from phase3, not newly refreshed in its dynamic builder. Open your saved comparison →

The differences that matter.

01

Throat and minimum output

MX-9900: 9 × 9 inches; 25 PTO hp minimum. WC88: 8 × 8 inches; 35 PTO hp minimum.

The lower MX minimum does not mean full 9-inch work at 25 PTO hp. Match typical material and available power before paying for the larger opening.

02

Full-capacity claims and upper-power wording

MX-9900: full 9-inch capacity at “50+ HP,” basis not repeated; no finite maximum. WC88: full 8-inch logs at full feed over 60 PTO hp; published range 35–100+ PTO hp.

The operating conditions and power labels differ. Neither the MX 50+ claim nor WC88’s 100+ reference is a finite upper limit or unlimited-power approval.

03

Standard mounting categories

MX-9900: Cat 1 or Cat 2. WC88: Cat 1.

A Cat 2 tractor needs model-specific mounting review; do not assume a Cat 1 chipper or quick hitch fits from horsepower alone.

04

Feed-system fluid and supplied state

MX-9900: conventional 10W-40 motor oil; nominal 2-quart system, factory fill stated but lower page text conflicts. WC88: hydraulic oil; 5-gallon / 19 L tank, supplied dry per retained manual.

Both have onboard hydraulics. Check delivered fill state and follow the specific oil instructions rather than substituting tractor hydraulic fluid into the MX circuit.

05

Dated listed price

MX-9900: $6,990 USD. WC88: $3,995 USD.

The November 7 observations differ by $2,995, before uncalculated delivery/setup details. Service layout and required capacity should justify the extra spend for a particular buyer.

A CONDITIONAL SHORTLIST

Which direction makes sense?

WoodMaxx MX-9900: when to shortlist it

Consider when the 9-inch opening, Cat 2 mounting route or hinged service layout addresses a specific need, with documented power above the minimum and a confirmed complete operating load.

Check current price at WoodMaxxPrepare questions for the seller

Woodland Mills WC88: when to shortlist it

Consider when the 8-inch maximum and Cat 1 mounting meet the work and its lower observed price matters, after checking the actual tractor, load and explicit full-feed power condition.

Check current price at Woodland MillsPrepare questions for the seller

Keep these source limits with the decision.

MX flywheel, roller/downforce and oil-fill values have source discrepancies.

WC88 page/manual external hopper-mouth height differs; 8 × 8-inch throat is consistent.

The MX product pages and current manufacturer-linked manuals were checked November 7, 2026. Other products retain the check dates shown with their sources and prices. Advice interprets published specifications; no physical comparison test or manufacturer-confirmed tractor pairing is claimed.

FOLLOW THE NUMBERS

Sources & documentation

Research record reviewed November 7, 2026. Confirm the current manual and the exact revision supplied with your machine.

  1. MX-9900 pageHP REQUIREMENT / WOOD DIAMETER
  2. MX-9900 manualPrinted p42 / PDF p43, Technical Specifications
  3. WoodMaxx current manufacturer manual index
  4. WC88 retained page evidenceCapacity
  5. WC88 manualPrinted p12 / PDF p14, 3-point hitch dimensions