Toro PROLINE HDX 48-Inch Commercial Walk-Behind Mower with 22 HP Kawasaki FX Engine

Product Description

The Toro PROLINE HDX 48-Inch Commercial Walk-Behind Mower is designed for professional landscaping crews, municipalities, schools, property managers, and grounds-maintenance teams that need commercial durability in a compact and maneuverable mowing platform.

Powered by a 22 HP Kawasaki FX-Series engine, the mower delivers dependable performance for frequent mowing and demanding turf conditions. Its 726cc commercial gasoline engine is paired with a Hydro-Gear ZT-3100 hydrostatic transmission, providing smooth speed control, responsive steering, and reliable forward and reverse operation.

The mower features a 48-inch commercial cutting deck manufactured from high-strength 7/10-gauge steel. Its deep 4.5-inch deck chamber promotes strong airflow beneath the mower, helping lift grass before cutting and move clippings efficiently toward the side-discharge opening.

A three-blade cutting system delivers full-width coverage across the deck, while blade-tip speeds of up to 18,500 feet per minute help produce a clean and consistent commercial finish.

Toro’s single-point height-of-cut system allows the operator to adjust the entire deck from one central location. Cutting height can be set between 1.5 and 4.5 inches, making it easier to adapt the mower to different grass varieties, property requirements, and seasonal mowing conditions.

Large 20-inch rear drive tires improve traction, maneuverability, and control on uneven ground and moderate side hills. The tire size and deck design also provide useful curb clearance when moving between landscaped areas.

The mower can travel at speeds of up to 7 mph forward and 3 mph in reverse, helping professional crews cover properties efficiently. Twin-lever steering controls provide accurate handling around trees, landscape beds, fences, pathways, and other obstacles.

Toro equips the mower with a reinforced bull-nose front bumper, flexible rubber discharge chute, standard anti-scalp wheels, maintenance-free spindle bearings, and cast-aluminum spindle housings for dependable commercial service.

A compatible Toro two-wheel sulky can be purchased separately. The sulky provides a stand-on operating position and folds when not in use, simplifying trailer loading and storage.

Key Features

22 HP Kawasaki FX Engine

The commercial-grade Kawasaki FX engine provides strong torque, dependable starting, and reliable performance during frequent professional use.

48-Inch Commercial Cutting Deck

The 48-inch deck offers an effective balance between productivity and maneuverability, making it suitable for properties with tighter access points.

Heavy-Duty Steel Construction

The deck is manufactured from high-strength 7/10-gauge steel and includes a reinforced bull-nose front bumper.

Hydro-Gear ZT-3100 Transmission

The commercial hydrostatic transmission provides smooth acceleration, precise steering, and controlled forward and reverse movement.

Single-Point Cutting-Height Adjustment

The cutting height can be changed from one central adjustment point instead of modifying each corner individually.

Three-Blade Cutting System

Three commercial mower blades provide consistent cutting coverage across the full 48-inch deck width.

Deep 4.5-Inch Deck

The deep cutting chamber promotes airflow, grass lift, and efficient clipping discharge.

20-Inch Rear Drive Tires

Large rear tires improve traction, side-hill control, maneuverability, and curb clearance.

Twin-Lever Steering

The easy-to-learn twin-lever control system allows precise maneuvering around property obstacles.

Electric Start

The key-operated electric-start system provides convenient and dependable engine starting.

Standard Anti-Scalp Wheels

Anti-scalp wheels help reduce turf damage when mowing uneven ground or crossing changes in elevation.

Flexible Rubber Discharge Chute

The rubber side-discharge chute flexes when contacting obstacles and is less vulnerable to impact damage than a rigid chute.

Removable Deck Cover

The removable cover provides easier access to belts and cutting-deck components during routine maintenance.

Maintenance-Free Spindles

Commercial cast-aluminum spindle housings use maintenance-free bearings to reduce routine servicing requirements.

Optional Folding Sulky

Toro offers a compatible two-wheel folding sulky separately for operators who prefer a stand-on mowing position.

Technical Specifications

Cutting Performance

The 48-inch deck uses three blades operating at a maximum blade-tip speed of approximately 18,500 feet per minute.

Its 4.5-inch-deep cutting chamber provides space for airflow beneath the deck, helping stand the grass upright before it is cut and moving discharged clippings away from the mowing path.

The mower comes in a standard side-discharge configuration. Toro also offers a compatible Recycler mulching kit and soft-side grass bagger as separately purchased accessories.

Transmission and Handling

The Hydro-Gear ZT-3100 transmission works with the mower’s twin steering levers to provide independent drive control.

This allows the operator to control speed and direction smoothly when lining up mowing passes, reversing, making turns, or navigating around trees, walls, pathways, and landscape features.

The compact 48-inch configuration is particularly useful for properties where wider commercial mowers may have difficulty passing through gates or narrow access areas.

Maintenance Benefits

The PROLINE HDX includes several features designed to simplify commercial maintenance:

• Removable cutting-deck cover
• Maintenance-free spindle bearings
• Cast-aluminum spindle housings
• Accessible deck and drive components
• Flexible rubber discharge chute
• Commercial high-strength steel deck
• Single-point cutting-height adjustment

Routine maintenance includes checking engine oil, servicing the air filter, inspecting the spark plug, sharpening or replacing blades, checking belts, maintaining tire pressure, cleaning the deck, and servicing the transmission according to Toro and Kawasaki recommendations.

Recommended Applications

The Toro PROLINE HDX model 44448 is suitable for:

• Commercial landscaping businesses
• Schools and university campuses
• Municipal parks and public grounds
• Apartment and housing developments
• Corporate and industrial properties
• Sports and recreation grounds
• Healthcare and institutional facilities
• Large residential properties
• Properties with gates or limited-access areas
• Professional crews maintaining multiple sites

What’s Included

• 1 × Toro PROLINE HDX commercial walk-behind mower
• 1 × 48-inch commercial side-discharge cutting deck
• 1 × 22 HP Kawasaki FX-Series engine
• 1 × Hydro-Gear ZT-3100 hydrostatic transmission
• 3 × Commercial cutting blades
• Standard anti-scalp wheels
• Flexible rubber side-discharge chute
• Reinforced bull-nose front bumper
• Electric-start system
• Five-gallon fuel tank
• Operator’s manual
• Manufacturer safety documentation