STI Lavina L25S7 Electric Grinder
STI Lavina L25S7 Electric Grinder is a professional planetary floor grinder engineered for high-performance surface preparation, concrete grinding, and polishing. Featuring the new Lavina Series 7 sealed, dust-proof grinding head, this machine delivers longer service life with reduced maintenance thanks to its completely redesigned chain-driven planetary drive without a chain tensioner, stronger timing belt, upgraded shafts, seals, and bearings, lighter timing pulleys for improved power transmission, and a new two-piece aluminum main belt housing with a belt inspection cover. Powered by a 10 HP (7.5 kW) motor operating on 200–240V single- or three-phase power, the L25S7 provides a 26.5-inch working width, three 9-inch left-rotating tool holders, adjustable tool holder speeds from 400 to 1100 RPM, and integrated grinding pressure ranging from 329 to 514 lbs for maximum productivity.
The redesigned frame and integrated weight system make tool changes and weight adjustments faster than ever, while rubber bushings at the grinding head attachment points significantly reduce vibration for greater operator comfort. An ergonomic multi-position handle allows quick adjustments, and convenient features such as a 5.2-gallon gravity-fed water tank with tank or hose connection, water tank cap, internal storage compartment, 57-foot power cable, and Camlock E250 vacuum hose port enhance jobsite efficiency. Weighing 871 lbs and measuring 84 × 24 × 49 inches, the Lavina L25S7 S7 Series grinder combines durability, precision, and ease of operation, making it an ideal solution for demanding commercial and industrial concrete grinding and polishing applications.
Lavina L25S7 Electric Grinder Main Features
- 10 HP (7.5 kW) electric motor
- 200–240V, single- or three-phase operation (50–60 Hz)
- 26.5″ working width
- Planetary grinding system
- Sealed, dust-proof grinding head
- Redesigned chain-driven planetary drive without chain tensioner
- Stronger timing belt for longer service life
- Upgraded shafts, seals, and bearings
- Lightweight timing pulleys for improved power transmission
- Two-piece aluminum belt housing with inspection cover
- Three 9″ left-rotating tool holders
- Variable tool holder speed: 400–1100 RPM
- Integrated grinding pressure: 329–514 lbs
- Redesigned frame for faster tool changes
- Adjustable integrated weight system
- Ergonomic multi-position handle
- Rubber bushings reduce vibration
- 5.2-gallon gravity-fed water tank
- Water tank or hose connection
- Camlock E250 vacuum hose port
- Internal storage compartment
- 57 ft power cable
STI Lavina L25S7 Electric Grinder Specifications
| Property | Value |
|---|---|
| Grinder Series | S7 |
| Grinder Type | Planetary |
| Motor Power | 10 HP (7.5 kW) |
| Voltage | 200–240V, 1 or 3 Phase, 50–60 Hz |
| Maximum Amperage | 30 Amp |
| Working Width | 26.5″ (673 mm) |
| Tool Holders | 3 × 9″ (225 mm), Left Rotation |
| Tool Holder Speed | 400–1100 RPM |
| Grinding Pressure | 329–514 lbs (149–233 kg) |
| Machine Weight | 871 lbs (395 kg) |
| Water Tank Capacity | 5.2 gal (20 L) |
| Water Feed | Gravity-fed (tank or hose connection) |
| Vacuum Port | Camlock E250 |
| Cable Length | 57 ft (17.4 m) |
| Machine Dimensions | 84 × 24 × 49 in |
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