Bernardo Double Grinder DSA 250 – grinding wheels K36/K80
The Bernardo Double Grinder DSA 250 is a robust and professional benchtop machine, designed for sharpening, roughing, and finishing tools and metal parts. It is equipped with two Ø250 mm grinding wheels: one K36 for roughing and one K80 for finishing. Thanks to its speed of 2850 rpm and a motor of 0.75 kW (S1) / 1.0 kW (S6), which can be powered at 230 V or 400 V, it offers constant power and reliability. The features include spark protection on both sides, adjustable workpiece support, LED light, integrated coolant tank, and wheel dresser, ensuring safety and practicality. With dimensions of 450 × 360 × 370 mm and a weight of 26 kg, it is stable and easily integrated into any workshop, making it an ideal solution for artisans and professionals.
Main features:
Grinding wheel Ø250 × 25.4 mm – grits K36 (roughing) and K80 (finishing)
Grinding wheel bore: 20 mm
Speed: 2850 rpm
Motor 0.75 kW (S1) / 1.0 kW (S6) – 230 V / 400 V
Spark guards on both sides
Adjustable workpiece support
Integrated LED light
Integrated coolant tank
Wheel dresser included
Dimensions: 450 × 360 × 370 mm
Weight: 26 kg
Technical specifications
| Specification |
Value |
| Brand |
Bernardo |
| Model |
DSA 250 |
| Grinding wheel |
Ø250 × 25.4 mm – grits K36/K80 |
| Grinding wheel bore |
20 mm |
| Speed |
2850 rpm |
| Motor power S1 (100%) |
0.75 kW |
| Motor power S6 (40%) |
1.0 kW |
| Voltage |
230 V / 400 V |
| Machine dimensions (L × W × H) |
450 × 360 × 370 mm |
| Weight |
26 kg |
Standard equipment
Grinding wheel Ø250 mm K36 (roughing)
Grinding wheel Ø250 mm K80 (finishing)
Spark guards (both sides)
Adjustable workpiece support
Integrated LED light
Coolant tank
Wheel dresser
Logistics
Bernardo shipping: 5–9 business days (7 days to the South). Original spare parts available with 3–5 business days shipping. Customer support in Italian available.
Frequently Asked Questions
How do I choose the grit size of the grinding wheels for the Bernardo Double Grinder DSA?
For roughing and removing a lot of material: coarse grit wheel (36–60). For tool sharpening and precision work: medium grit wheel (80–120). For finishing and polishing: fine grit wheel (150–220) or felt disc. The Bernardo Double Grinder DSA mounts Ø 250 mm wheels — verify the correct format before purchasing spare parts.
How often should grinding wheels be balanced?
New grinding wheels should always be checked before installation (ring test — clear sound = intact wheel). Periodic dressing with a wheel dresser maintains the correct shape and reduces vibrations. An unbalanced or out-of-shape wheel can cause excessive vibrations and risks to the operator.
Can the Bernardo Double Grinder DSA mount leather or felt polishing discs?
Yes. Most Bernardo double grinders can mount Ø 250 mm leather or felt discs on the same shaft as the abrasive wheels — suitable for polishing metals, plastics, and wood. Verify shaft compatibility with Krollit.
What is the difference between DS and DSA in the grinder range?
The DS series is the standard double grinder with abrasive wheels on both sides. The DSA series adds integrated dust extraction — essential when working on materials that produce fine dust (aluminum, non-ferrous metals, wood) in enclosed environments. The DSA is quieter and keeps the work environment cleaner.
Are spare parts (grinding wheels, supports) available?
Original spare parts available with 3–5 business days shipping. Customer support in Italian available.
