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THE TRADEOFFS, EXPLAINED

Wallenstein BX52S vs WoodMaxx MX-9900: engine-rated 5-inch or PTO-rated 9-inch

A Kubota L3302 gear (28 PTO, 33 engine hp) fits both. A Kubota L2501 gear (20.5 PTO, 24.8 engine) fits only BX52S; a Kubota L6070 Premium (60 engine hp) only MX-9900. The jump is from 5-inch gravity feeding to 9-inch controlled feeding.

By Acreage Equipment · Reviewed November 9, 2026 · Specification research, not a field test

Compare these two with my tractor Compare the complete purchase cost →
Wallenstein BX52S PTO wood chipper

Wallenstein

BX52S

22–55 engine hp · official U.S. page · 5″ max. chip diameter

Check seller price Request a current quote

Explore buying options at Wallenstein
Specs & tractor check →
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
Specs & tractor check →

START WITH THE DECISION

Consider BX52S for 5-inch materialShortlist BX52S for a 22–55 engine-hp compact.

Consider MX-9900 for the largest woodShortlist MX-9900 for 8–9-inch wood on a 25+ PTO hp tractor with the lift.

Read the evidence behind the choice ↓

Observed U.S. prices, checked November 7, 2026, from the retained product records. Wallenstein publishes no numeric price on the captured page and needs a dealer quote, so no price difference is calculated. Tax, shipping and options change the delivered total. Open your saved comparison →

The differences that matter.

01

Engine 22–55 against PTO 25+

BX52S: 22–55 engine hp. MX-9900: at least 25 PTO hp, no published maximum.

Small compacts fit BX52S; tractors over 55 engine hp MX-9900.

02

Gravity against hydrostatic feed

BX52S is gravity-fed. MX-9900 has adjustable hydrostatic feed and reverse.

MX-9900 controls feed.

03

5-inch against 9-inch

BX52S: 5 inches. MX-9900: up to 9 inches with four reversible flywheel knives.

MX-9900 takes much larger wood.

04

Hitch and weight

BX52S is Category I at 505 lb total. MX-9900 lists Category 1/2; no operating weight is retained.

Ask WoodMaxx for MX-9900’s weight.

A CONDITIONAL SHORTLIST

Which direction makes sense?

Consider BX52S for 5-inch material

Shortlist BX52S for a 22–55 engine-hp compact.

Explore buying options at WallensteinPrepare questions for the seller

Consider MX-9900 for the largest wood

Shortlist MX-9900 for 8–9-inch wood on a 25+ PTO hp tractor with the lift.

Check current price at WoodMaxxPrepare questions for the seller

Keep these source limits with the decision.

MX-9900: WoodMaxx ties full capacity to “50+ HP” without repeating whether that is PTO power; the 25-PTO-hp minimum is explicit.

This comparison reuses the manufacturer evidence retained in the product records reviewed November 7, 2026; product pages were not re-fetched on November 9. Document conflicts are kept visible. No field test or manufacturer-approved tractor pairing is claimed.

FOLLOW THE NUMBERS

Sources & documentation

Research record reviewed November 9, 2026. Confirm the current manual and the exact revision supplied with your machine.

  1. Wallenstein official U.S. BX52S page — explicit engine band, capacity, RPM label, reference weight and accessoriesEngine HP Range 22–55; 5-inch capacity; 5 × 10-in. opening; folding hopper
  2. Wallenstein BX52S support — currently linked operator, setup and shaft documents
  3. BX-S operator manual Z97085_En, Rev Jan-2025 — pp14,18–22,28,30,40Printed pp14, 18–22, 40: 540 or 1000 rpm, Category I mounting, 505 lb total weight
  4. PTO shaft installation Z97844_En, Rev Aug-2024 — p6 sizing with a quick hitch attached
  5. BX-S setup instructions Z97085_SI, Rev Feb-2019 — assembly and shipment handling
  6. Official MX-9900 page: power/capacity claims, feed, hitch and current sale price25 PTO hp minimum; up to 9-inch; hydrostatic feed with adjustable speed and reverse; four reversible flywheel knives; price
  7. MX-9900 manual Rev C, September 18, 2026: specifications and setupRev C: at least 25 PTO hp at 540 rpm; 32-in. Premium shaft; self-contained hydrostatic feed
  8. WoodMaxx current manufacturer manual index