Lavina L30GS7 Propane Concrete Floor Grinder

A 30″ Propane Powerhouse for High-Production Floor Prep

The Lavina® L30GS7 is built for contractors who need to cover serious ground. With a 30-inch working width and up to 24 HP of propane power, this S7-series planetary grinder is a high-production machine for large commercial and industrial floors — grinding, coating removal, and polishing across big open spaces without a cord in sight.

Propane power means full mobility and no dependence on site electrical service, so you can get to work fast on warehouses, distribution centers, retail buildouts, and any job where square footage and speed matter. For the biggest floors, the L30GS7 is one of the most productive machines in the Lavina lineup — and it comes with all the latest S7 upgrades for reliability and ease of use.

Choose it with the Kohler® PCV740 (24 HP) or the Kawasaki FX600V (19 HP) engine to match your preference.

Ready to put the L30GS7 to work? Call for pricing and availability, or request a quote — and you’ll talk to a real surface-prep expert, not a call center.

Speak directly with a surface preparation expert — fast answers and real recommendations.

New to grinders? Read our guide on choosing the right one!

All-New Frame Design — Better Control, Easier Tool Changes

The all-new LAVINA S7 grinders feature a completely redesigned frame to make contractors’ work easier and more efficient:

• Redesigned frame for easier tool changes — head angle during tool changes is greatly improved compared to Elite models
• New handle design for faster adjustability and more positions
• Rubber bushings at head attachment points for reduced operator vibration
• Water tank cap
• Internal storage compartment

(Transport Wheel Sold Separately)

New Sealed & Dust-Proof Grinding Head

Longer service life and less maintenance:

• Completely sealed, dust-proof grinding head
• Redesigned chain-driven planetary drive
• New stronger timing belt
• Upgraded shafts and pulleys for better power transmission and reliability

Specifications

• Grinder Series: S7
• Grinder Type: Planetary
• Propane Engine: Kohler® PCV740 or Kawasaki FX600V
• Engine Capacity: 24 HP / 17.9 kW, 747 cc, 45 cu. in.
• Engine RPM: 2000–3600
• Tool Holder RPM: 425–765
• Weight: 926 lbs
• Working Width: 30.8 in
• Tool Holder Diameter: 3 × 13.2 in
• Vacuum Hose Port: Camlock E300
• Water Feeding: Gravity-fed from tank or hose connection
• Water Tank Capacity: 5.2 gal
• Propane Tank: 20 lbs
• Machine Size (L×W×H): 86 × 32 × 46 in

What the L30GS7 Is For

• High-production commercial floor prep — warehouses, distribution centers, big-box retail, industrial floors
• Large-area concrete grinding and polishing
• Coating and adhesive removal at scale
• Propane power for job sites without adequate electrical supply, or where cord-free mobility matters
• Wet or dry operation with the 5.2-gallon water tank

Frequently Asked Questions

What is the Lavina L30GS7 best for? High-production floor prep on large commercial and industrial floors — it’s a 30″ propane planetary grinder built for grinding, coating removal, and polishing where you need to cover a lot of square footage fast.

How wide is the grinding path? 30.8 inches — one of the widest in the Lavina lineup, built for maximum coverage on big floors.

What engine options are available? The Kohler® PCV740 (24 HP) or the Kawasaki FX600V (19 HP). Both are propane-powered.

Why propane instead of electric? Propane gives you full mobility with no cords and no need for a power supply on site — ideal for large open areas and locations without adequate electrical service.

What’s new about the S7 series? A sealed, dust-proof grinding head for longer service life, a redesigned frame for easier tool changes and less vibration, an upgraded chain-driven planetary drive, plus an internal storage compartment.

Does it work wet or dry? It has a 5.2-gallon water tank for wet grinding and polishing, and can run dry with proper dust collection.

What tooling does it use? Lavina-compatible planetary tooling. We carry both OEM Lavina tooling and non-OEM options — see our Lavina grinder accessories and planetary tooling.

How does the L30GS7 compare to the L20GS7? The L30GS7 has a wider 30″ path and more horsepower for maximum production on big floors, while the L20GS7 has a compact 20″ footprint that’s more maneuverable for tighter spaces. Not sure which fits your work? Call us — we’ll help you choose.

Why Buy Your Lavina from Substrate Technology?

When you buy the L30GS7 from us, you’re getting more than a machine. Our technicians are Lavina-certified, we stock parts and tooling, and we back every machine with real surface-prep expertise — so you have genuine support long after the sale. We’ll help you choose the right machine, the right tooling, and the right dust collection for your work, and we’re here when you need parts or service. You’ll always talk to a real expert, not a call center.

Complete Your Setup

• Lavina grinder accessories — OEM and non-OEM options
• Planetary tooling — to fit the L30GS7
• Dust collectors — pair with the right collector for silica-safe grinding

Order Your Lavina L30GS7 Today

Call (815) 941-4800 x 1 or fill out our contact form. See all our Lavina grinders and planetary floor grinders.

Item #303603030 (L30GS7 with Kawasaki motor) | #303603031 (L30GKS7 with Kohler motor)