The Makita 9403 is a rugged, high-capacity 4″ × 24″ belt sander built for professional-grade stock removal and surface preparation. Featuring a powerful 1,200 W motor and high belt speed around 500 m/min (1,640 ft/min), it delivers aggressive sanding with controlled stability. Its labyrinth-sealed motor, 360° dust output, and ergonomic design provide performance, durability, and comfort—making it ideal for wood, metal, plaster, and deck restoration. Available in both 110 V transformer-safe and 240 V mains variants, this tool offers the flexibility to adapt to site or workshop power sources.
1,200 W continuous-duty motor with electronic speed control
Belt size: 100 × 610 mm (4″ × 24″) with belt speed approx. 500 m/min
Quiet operation (~84 dB(A)) for user comfort during prolonged sanding
Labyrinth-style construction seals motor and bearings from dust and debris
Low-profile head allows flush sanding along walls and edges
Large front grip positioned for comfort and stability
Dust bag with full-rotation output (360° swivel) for flexible connection
Compact size (~353 × 164 × 211 mm) and weight ~5.7–5.9 kg
Power cable length approx. 5 m for extended reach
1× Makita 9403 Belt Sander (select 9403/1 = 110 V or 9403/2 = 240 V)
1× Dust bag
1× Abrasive belt (approx. 80 grit)
Heavy sanding on timber floors, decks, plaster, and metal surfaces
Fast, wide-area stock removal or prepping surfaces for finishing
Trade and site users who need a powerful yet low-vibration sanding solution
Ensure correct voltage model before purchase: 9403/1 = 110 V, 9403/2 = 240 V
Use only 100 × 610 mm sanding belts rated for at least 1,640 ft/min
Basic PPE mandatory: eye protection, hearing protection, gloves, and dust mask
Regular cooling breaks recommended during heavy-duty operation
| Brand | Makita |
|---|---|
| Belt Speed | 500 m/min |
| Voltage | 110V |
| Vibration Uncertainty (K Factor) | 1.5 m/s² |
| Product Dimensions (L x W x H): | 353 x 164 x 211 mm |
| Sound Power Level (LWA) | 97 dB(A) |
| Sound Pressure Level (LpA) | 86 dB(A) |
| Noise Uncertainty (K Factor) | 3 dB(A) |
| Continuous Input Power | 1200 W |
| Power Supply Cord | 5.0 m |
| Weight Without Cable | 5.7 kg |
| Vibration Level. Sanding Metal Plate | ≤ 2.5 m/s² |
| Vacuum cleaner connection Ø in / out | 25/31 mm |
| Belt Size | 100 x 610 mm |
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