The differences that matter.
01
15–45 against 50–85 engine hp
Farmry’s WCAP5 manual specifies 15–45 engine hp. Wallenstein labels BX72S’s 50–85 hp as Engine HP Range.
The ranges are 5 hp apart. A tractor at 45 is inside WCAP5 only; at 50, inside BX72S only; between them, inside neither. Neither maker names gross or net.
- Source: Printed p19: Engine HP Range 15–45, chipping capacity and 5 × 9-in. opening; p20: mounting (Category I/II), rated 540–1000 rpm, net weight with PTO shaft ↗
- Source: Engine HP Range; Mounting System (Cat I and II); Total Weight; Discharge Chute Height ↗
- Source: Printed/PDF pp14, 18 and 40: PTO 540 or 1000 rpm, mounting (Cat I), capacity and opening, weight ↗
02
5 inches against 7
WCAP5 has a 5 × 9-inch opening, 5 inches fresh and 4 dry on its page. BX72S lists a 7-inch maximum diameter, a 7 × 12-inch housing opening and an 82-inch discharge height.
BX72S takes larger and bushier material and discharges higher into a trailer.
- Source: Printed p19: Engine HP Range 15–45, chipping capacity and 5 × 9-in. opening; p20: mounting (Category I/II), rated 540–1000 rpm, net weight with PTO shaft ↗
- Source: Compatibility FAQ (15–45 engine HP); capacity FAQ (5 in. fresh, 4 in. dry) ↗
- Source: Engine HP Range; Mounting System (Cat I and II); Total Weight; Discharge Chute Height ↗
- Source: Printed/PDF pp14, 18 and 40: PTO 540 or 1000 rpm, mounting (Cat I), capacity and opening, weight ↗
03
412 lb against 728 lb
WCAP5’s manual lists 412 lb net with the PTO shaft. BX72S is 728 lb on Wallenstein’s page and in its manual, without a stated shaft inclusion.
BX72S is about 300 lb heavier at the rear. Both are well under a 3,177-lb lift at 24 inches.
04
Category I/II in both, with a caveat
WCAP5’s manual lists Category I/II mounting. BX72S is Category I and II on Wallenstein’s page and Category I in its January 2025 manual.
On a Category 1 tractor both mount. For Category 2, confirm the BX72S mounting parts on the order.
- Source: Printed p19: Engine HP Range 15–45, chipping capacity and 5 × 9-in. opening; p20: mounting (Category I/II), rated 540–1000 rpm, net weight with PTO shaft ↗
- Source: Engine HP Range; Mounting System (Cat I and II); Total Weight; Discharge Chute Height ↗
- Source: Printed/PDF pp14, 18 and 40: PTO 540 or 1000 rpm, mounting (Cat I), capacity and opening, weight ↗
05
Two documented PTO speeds each
WCAP5’s manual lists a rated 540–1000 rpm; BX72S’s manual lists 540 or 1000 rpm settings, with a separate 1000-rpm shaft.
Run each at the speed its supplied shaft and setup are built for; confirm which shaft ships.

