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Walk-behind concrete saw with yellow blade guard, exposed diamond blade, red engine, and white water tank

MechMaxx FS480H Honda GX390 Walk-Behind Concrete Floor Saw 20 Inch Blade 7 Inch Cutting Depth

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$2,799.00
$2,399.00
Model : FS480H, Honda GX390 In Stock
FS480H, Honda GX390 FS350H, Honda GX160

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Description

Cut concrete, asphalt, pavement, and joints with a Honda GX390‑powered floor saw supporting a 20‑inch blade and 7‑inch cutting depth. Ideal for contractors who need deeper, accurate cutting performance.
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UnionBuilt Supply is an authorized dealer of MechMaxx. All manufacturer warranties are honored.

MechMaxx FS480H – 20" Concrete Floor Saw

Cutting deep concrete, asphalt, or pavement requires a saw with strong power and stable blade control. The FS480H solves that problem by delivering deep‑cut capability with a powerful engine and reinforced frame for demanding cutting applications.

Powered by a Honda GX390 engine, this saw supports a 20‑inch blade and delivers up to 7 inches of cutting depth, making it ideal for roadwork, slab cutting, and heavy‑duty repair work.

  • Honda GX390 Engine: High‑power performance for deep cutting.
  • 20" Blade Capacity: Cuts up to 7 inches deep for heavy‑duty applications.
  • Wet Cutting Support: Integrated water system reduces dust and cools the blade.
  • Operator Control: Adjustable handle and control console for precise cutting.
  • Reinforced Frame: Built for stability and long‑term durability.
  • Jobsite Handling: Integrated lifting points for easier transport.

Product manual (PDF)

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Engine manual (PDF)

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20" Blade Capacity Max 7" Cutting Depth
20" Blade Capacity Max 7" Cutting Depth

Compatible with 20" cutting blades for efficient concrete and asphalt cutting performance. Cuts up to 7" deep for expansion joints, road repair, and concrete cutting applications.

Brake System
Brake System

Equipped with a brake system for improved operation safety and machine control.

Adjustable Handle With Vibration Dampening
Adjustable Handle With Vibration Dampening

The handle position can be easily adjusted using locking set screws for improved operator comfort. Integrated rubber grips help absorb vibration and reduce fatigue during extended operation.

Built-In Water Tank
Built-In Water Tank

7.9-gallon water tank helps reduce dust and cool the blade during wet cutting.

Professional Operator Console Design
Professional Operator Console Design

Equipped with an integrated operator workstation for easier and more efficient operation.

Easy Transport Design
Easy Transport Design

Features Lifting Handles for easier transportation, loading, unloading, and jobsite mobility.

  • Demonstration
Product Warranty

MechMaxx FS480H Honda GX390 Walk-Behind Concrete Floor Saw 20 Inch Blade 7 Inch Cutting Depth (SKU: 205009H) includes a standard one-year manufacturer warranty covering defects in materials and workmanship under normal use.

Product Extended Warranty Plans

Extended warranty plans may be available for select products. Contact us to confirm eligibility and coverage details.

Engine Honda GX390
Engine Type Single-Cylinder, 4-Stroke, Air-Cooled, OHV Gasoline Engine
Engine Displacement 389 cc
Horsepower 11.7 HP (8.7kW) @ 3600 RPM
Start System Recoil
Fuel Tank Capacity 6.4 US qt (6.1 L)
Engine Oil Capacity 1.16 US qt (1.1 L)
Blade Diameter 20 in
Max Cutting Depth 7 in
Arbor Diameter 1 in
Water Tank Capacity 7.9 US gal
Folded Dimension (LxWxH) 44 × 24 × 37 in
Overall Dimension (LxWxH) 69 × 24 × 39 in
Packing Size (LxWxH) 44 × 26 × 41 in
Weight (N.W / G.W.) 255/321 lbs

WARNlNG: This product can expose you to chemicals including engine exhaust (including diesel engine exhaust when equipped),lead and lead compounds, mineral oils, soots, phthalates, and carbon monoxide which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Certain specification(s) are based on engineering calculations and are not actual measurements. Specification(s) are provided for comparison purposes only and are subject to change without notice. Specification(s)  for your individual equipment will vary based on normal variations in design, manufacturing, operating conditions, and other factors.

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