Lavina L19S7 Electric Concrete Floor Grinder

A Compact, Lightweight Electric Grinder for Tight Spaces

The Lavina® L19S7 is the small, nimble member of the Lavina S7 family — a lightweight 115V electric planetary grinder and polisher built for the jobs where a big machine simply won’t fit. At just 221 lbs with a foldable frame that separates into two pieces, it’s easy to transport, easy to store, and easy to get into bathrooms, small patios, basements, closets, and other tight areas.

Because it runs on standard 115V household power, there’s no need for special electrical service — just plug in and go. That makes the L19S7 a favorite for rental fleets, DIYers, and contractors who need a capable grinder for small jobs, detail work, and spaces the larger machines can’t reach. Think of it as the Elite 16″ model’s successor, with the same compact spirit in a 20″ footprint.

Ready to put the L19S7 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!

Grinder Features

• Optional added weights — up to two 18.5 lb / 8 kg weights (#L21.50.00.00) for more grinding pressure
• Compact, foldable frame — separates into two pieces for easy transport and storage
• Dust-proof planetary drive — low-friction rubber seal protects internal components from dust and moisture, reducing maintenance and extending service life
• Three 9-inch grinding heads with clockwise rotation (use the black PCD and carbide scrapers)
• Floating skirt with flexible brush for optimal dust containment
• Simple control panel — easy to operate, ideal for rentals and newer operators

Specifications

• Grinder Series: S7
• Grinder Type: Planetary
• Horsepower: 3 HP
• Voltage: 1 phase × 115V
• Weight: 221 lbs
• Grinding Pressure: 139 lbs (176 lbs with additional weights)
• Working Width: 20 in
• Tool Holder Diameter: 3 × 9 in
• Head Rotation: Clockwise
• Also available in 220V (model L19EUS7)

What the L19S7 Is For

• Tight and small spaces — bathrooms, small patios, basements, closets, hallways
• Rental fleets — simple controls, lightweight, easy to transport
• DIY and smaller contractor jobs
• Detail and edge work where a large machine can’t reach
• Grinding and single-speed polishing on standard household power

Frequently Asked Questions

What is the Lavina L19S7 best for? Small jobs and tight spaces — it’s a compact, lightweight 20″ electric planetary grinder ideal for bathrooms, basements, small patios, rental fleets, and DIY projects.

What power does it need? Standard 115V single-phase household power — no special electrical service required. (A 220V version, the L19EUS7, is also available.)

How heavy is it, and is it easy to move? Just 221 lbs, with a foldable frame that separates into two pieces for easy transport and storage — one of the most portable grinders in the Lavina line.

Can I add grinding pressure for tougher work? Yes — it accepts up to two 18.5 lb weights, raising grinding pressure from 139 lbs to 176 lbs.

Is it a good machine for a rental store? Yes — the simple control panel, light weight, and easy transport make it a popular choice for rental fleets and less-experienced operators.

What tooling does it use? Lavina-compatible planetary tooling, including black PCD and carbide scrapers. See our Lavina grinder accessories and planetary tooling.

How does it compare to the bigger Lavina grinders? The L19S7 is the compact, electric, small-job machine. For larger floors, step up to the propane L20GS7 (20″) or L30GS7 (30″), which deliver far more production capacity. Not sure which fits your work? Call us — we’ll help you choose.

Why Buy Your Lavina from Substrate Technology?

When you buy the L19S7 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, including the add-on weights
• Planetary tooling — to fit the L19S7
• Dust collectors — pair with the right collector for silica-safe grinding

Order Your Lavina L19S7 Today

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

Item #303007019