Allen Engineering PRO446 – Walk-Behind Trowel

The Allen Engineering PRO446 walk-behind trowel features a 9 hp class Honda engine, lifting hook, and optional Fine Pitch or Rapid Pitch handle. Built for demanding job sites, it’s a reliable addition to any professional finishing fleet.

Description

PRO446: Power, Precision, and Durability for Professional Concrete Finishing

The PRO446 from Allen Engineering is a heavy-duty walk-behind concrete trowel designed to tackle the most demanding job sites with power and control. As part of Allen’s Pro Series lineup of trowels, the PRO446 is purpose-built for professional contractors who require superior finishing results, day in and day out. With a 46-inch rotor diameter and powered by a rugged Honda GX270 engine, this machine delivers optimal surface coverage, durability, and high-performance torque for large slab applications.

Whether you’re finishing commercial floors, industrial pads, or expansive flatwork, the PRO446 offers the muscle and maneuverability needed to deliver smooth, uniform results under all working conditions.

Honda Power and Pro-Level Performance

At the heart of the PRO446 is the reliable and time-tested Honda GX270 engine. Known for its quiet operation, fuel efficiency, and long-term dependability, this 9 hp-class engine drives the concrete trowel with consistent force, ensuring even distribution across the entire finishing surface. From early floating to final finishing, the GX270 provides the responsiveness contractors need when working under tight timelines and high standards.

The machine’s direct-drive gearbox enhances power transfer, while reducing maintenance needs compared to belt-driven units. It’s a professional-grade concrete finishing machine built for productivity.

Operator Comfort and Configurable Control

The PRO446 comes equipped with a lifting hook for easy transport and can be paired with either Allen’s Fine Pitch or Rapid Pitch handle systems. Whether you prefer gradual pitch adjustment or quick responsiveness, these customizable control options allow operators to adapt the concrete trowel to their preferred workflow and project requirements.

With its 46-inch rotor, the PRO446 strikes the perfect balance between coverage and precision—allowing crews to tackle larger slabs while still navigating around forms, rebar, or embedded fixtures. The ergonomically designed handle reduces vibration and fatigue, so operators can work longer with greater comfort.

Built Tough for Demanding Jobsites

 

Durability is built into every inch of the PRO446. From its heavy-duty steel frame to its rugged rotor assembly, this walk-behind concrete finishing machine is engineered to withstand the abuse of daily jobsite use. It’s a long-term investment that performs reliably pour after pour.

Why Choose the PRO446?

✔ Powered by the durable and efficient Honda GX270 engine
✔ 46-inch rotor for high-output finishing on large slabs
✔ Compatible with Fine Pitch or Rapid Pitch handle systems
✔ Built for daily use on tough jobsites as a professional concrete trowel
✔ An essential addition to any contractor’s fleet of Allen trowels

Finish Strong with the PRO446

When the job calls for strength, precision, and durability, the PRO446 delivers. It’s the trusted concrete finishing machine professionals rely on for high-quality results and unbeatable performance across the toughest pours.

Specifications

ENGINE
HONDA GX270 / 270 cc
HORSEPOWER CLASS
9 hp / 6.7 kW
FUEL TYPE
Gasoline
ROTOR DIAMETER
46 in (4-Blades) / 117 cm
MAXIMUM ROTOR SPEED
120 rpm
TROWEL ARMS & SPIDER
Standard Duty
WEIGHT
250 lb / 113 kg
DIMENSIONS (L X W X H)
78 x 48 x 39 in / 198.1 x 121.9 x 99.1 cm