Skip to content

Slope Master SM-T4E

Commercial Land Clearing Slope Mower

The SlopeMaster may be a smaller machine than our other steep slope mowers for sale, such as the Super or Mega Slope Masters. However, don't let its size fool you. It’s still one of the best slope mowers in the industry! This heavy-duty steep slope mower handles transverse mowing on slopes up to 40°. Plus, due to its lighter weight and smaller size, it can get into areas that its two big brothers can't.

Small Mower, Big Features

The SlopeMaster is designed to cut grass and weeds on sloped and flat terrain. It has a powerful 25 HP Yanmar water cooled turbo diesel engine. Additionally, it features a 1/4" thick steel, out-front, 60" cutting deck with three 3/8" thick blades. The skid steering mechanism features twin, closed loop hydraulic systems that offer the superior maneuverability and power required to cut steep slopes. This steep incline mower design offers a huge advantage over steering wheeled machines on both sloped and flat areas.


With the ability to transversely cut on a 40° slope, this true zero-turn-radius mower can trim around objects, and mow a swath 60 inches wide without leaving the slope! It will cut more area in a fraction of the time than your traditional tractor slope mower– and with maximum safety.

Safety Features

The SlopeMaster, like its larger, wide-area counterparts, is built with safety in mind. If the operator inadvertently leaves the seat, the mower is immediately braked.

The location of the operator's seat is also a safety feature, with the tilting seat placed at the rear extremity of the machine (farthest point away from moving parts of the engine or cutter deck) for easy dismount in an emergency situation.

Another safety feature is the front-mounted deck, so the operator's eyes are always looking forward. The deck supports the chassis from the front, while pivoting side to side to follow the contours of the turf.

Three Blade Styles

The SlopeMaster offers maximum versatility as both a rough cut and a finish cut mower. The standard flat blades are best for rough mowing. Flat blades allow the most powerful cut in heavy growth. The machine can be quickly converted to the optional high lift blades for finish mowing. The medium lift blade offers the best of both worlds. For the best results, the deck guards are lowered for maximum lift on the grass.

Tire Styles

The standard tractor tread tires can be replaced by the optional turf tread tires when the machine is to be used primarily for finish turf mowing on less steep slopes.


Ability to mow all day without refueling in even the most demanding conditions

Adjustable tilting seat with suspension to keep the operator upright and comfortable

Rear discharge for reduced thrown object risk

Slope mowers for sale, hillside mowing equipment, best hillside mower, what mower is best for hills, wide area, ride on

Tip Up Stop to prevent the machine from rolling over backward

ROPS produces "cone of protection" in the event a machine does roll over sideways

Detailed Specs

All options are factory installed at time of order – except for blades which can be ordered separately

Cutter Assembly : 1/4” thick steel cutting deck.

Cutting Height : 1.5” to 5.5” height adjustment.

Blades : Three, 3/8” thick hardened steel flat blades.

Cut : 60” wide, hydro-static, rear discharge, out-front rotary mower.

Slope : Slope mowing 0° to 40° (84% grade), designed and tested. Has a low center of gravity for safety on the slopes.

Engine : 25 HP Yanmar turbo diesel engine, water cooled.

Cutter Type : Rotary - 12” x 4” puncture proof casters support the cutter deck from the front of the machine.

Diesel Fuel Tanks : 17 gallon dual diesel fuel tanks on the front of the machine away from the operator. The fuel tanks are uniquely designed to eliminate the fuel disruption problem that occurs with steep slope mowing.

ROPS :  Certified Roll Over Protection System (ROPS) with retractable seat belt.

Speed : 8 mph.

Patented design : For high production, low maintenance, long life, safe steep slope mowing!

Tilting Seat : Seat situated at rear extremity of the machine; manually tilted to allow operator to safely and comfortably operate on steep slopes.

Steering : Skid steered through twin, closed loop hydraulic drive systems.

Maneuverability : True zero-turn-radius (ZTR), without leaving the slopes.

Oil Reservoir : 14 gallon hydraulic reservoir with oil/air separator, to prevent foaming, overheating, and water intrusion from condensation.

Hydraulics : Independently powered hydraulic skid steer wheel drives with hydraulic pumps and motors; hydraulically driven cutter deck.

Machine Weight: 2,820 lbs

Options and Accessories

All options are factory installed at time of order – except for blades which can be ordered separately

High Lift Blades: 3/8” thick.

Medium Lift Blades : 3/8” thick.

Light Kit

Rotary Beacon : in addition to the flashing light included in light kit above.

Steep slope mower, heavy duty mowers, best mower for slopers, hills, steep banks, uneven terrain, mowing