CAT CLASS: HQ-10554

30-60 hp Stump Grinder

The 30-60 hp stump grinder is the workhorse of professional tree service operations, designed for large residential stumps and mid-sized commercial work. These machines bridge the gap between compact walk-behind units and heavy-duty production grinders, offering cutting depths of 38-64 cm and cutter wheel diameters of 43-61 cm. Available in both towable and self-propelled configurations, this size class balances maneuverability with the power needed to handle stumps up to 90 cm in diameter.

Models

Brands

Cat classes

Pick a size class — capacity and reach differ across the range.

Key specifications

Specification	Typical range	What it means
Engine Power	26-56 hp	Sufficient torque for hardwoods and continuous operation on stumps 60-90 cm diameter
Cutting Depth	15.0–25.2 in (38–64 cm)	Reaches below grade to eliminate surface roots and prepare sites for replanting
Cutter Wheel Diameter	16.9–24.0 in (43–61 cm)	Larger wheels carry more teeth and maintain cutting speed in dense wood
Operating Weight	1,323–3,968 lb (600–1,800 kg)	Heavy enough for stability during grinding yet light enough for standard trailers
Fuel Capacity	6-15 gal (23-55 L)	Supports 4-8 hours of continuous operation between refueling

How to choose

This size class is appropriate for tree service companies handling multiple large residential stumps per day, as well as contractors clearing building sites with stumps up to 90 cm in diameter. The 30-60 hp band offers the power and cutting capacity to work through hardwoods efficiently while remaining transportable on standard trailers. When stumps are predominantly under 50 cm or access is restricted to narrow gates and tight residential yards, the 15-30 hp Stump Grinder provides better maneuverability. For land-clearing operations, commercial site development, or stumps routinely exceeding 90 cm, the 60-100 hp Stump Grinder delivers faster production and deeper cutting capacity.

What this size handles

Grinding mature oak, maple, or ash stumps 60-90 cm diameter in residential yards
Site preparation for landscape installation after tree removal
Clearing multiple stumps on commercial properties and municipal parks
Removing stumps along roadway and utility corridors
Processing stumps after storm damage and emergency tree work
Preparing sites for new construction where grade must be restored

Safety & operation

Cutter guards and debris shields are required; thrown wood chips can travel 15+ meters
Operating zone clearance of at least 25 meters for bystanders and vehicles during grinding
Hearing protection mandatory; sound levels exceed 100 dB at operator position
Ground conditions must be assessed for stability; machines can shift on slopes or soft soil during operation

Transport & logistics

Towable models connect to 3/4-ton or 1-ton trucks via standard ball or pintle hitch
Self-propelled units load onto tandem-axle trailers rated 1,800-2,300 kg capacity
Transport width typically 1.5-2.1 m, fitting through residential gates and along sidewalks after unloading

Power & supply

Gasoline or diesel engines; diesel models common in the upper horsepower range for extended run time
Fuel consumption 2-4 gallons per hour under load; onboard tanks support half-day operation
No external power required; machines are fully self-contained

Frequently asked

What is the largest stump diameter this size class can handle?

Most 30-60 hp grinders effectively process stumps up to 90 cm in diameter. Larger stumps require multiple passes and significantly longer grinding time, making the 60-100 hp class more efficient for routine work above that threshold.

How does cutting depth affect site restoration work?

The 38-64 cm cutting depth in this class allows grinding 20-30 cm below finished grade, which is sufficient to eliminate surface roots and permit soil placement for turf or planting. Deeper grinding requires the 60-100 hp or larger classes.

What distinguishes towable from self-propelled models in this horsepower range?

Towable units are pulled behind a vehicle and positioned manually, ideal for open sites. Self-propelled models have integrated drive systems for navigating slopes, soft ground, and tight spaces, common in residential tree service where stumps are scattered across properties.

Compare popular models

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Normalised to the same units. A dash means the figure was not published.

Model	Engine power	Operating weight	Fuel capacity
Vermeer SC402 Stump Cutter	40 hp	1,949 lb (884 kg)	10.0 gal
Vermeer SC48TX Stump Cutter	48 hp	3,748 lb (1,700 kg)	14.5 gal
Vermeer SC372	38 hp	2,271 lb (1,030 kg)	-
Bandit SG-40	38 hp	1,499 lb (680 kg)	-
Bandit Model 2550 (Rubber Tire)	49 hp	2,280 lb (1,034 kg)	-
Bandit Model 2550 (Track)	49 hp	2,280 lb (1,034 kg)	-