Bernardo Double Grinder DS 200 S – grinding wheels K36/K80
The Bernardo Double Grinder DS 200 S is a professional benchtop machine, designed for sharpening, roughing, and finishing tools and metal parts. It mounts two Ø200 mm grinding wheels: a K36 for roughing and a K80 for finishing, allowing precise work for both material removal and surface finishing. With a rotational speed of 2850 rpm and a motor of 0.90 kW (S1) / 1.25 kW (S6), powered by either 230 V or 400 V, it ensures constant power and long durability. Standard equipment includes spark guards on both sides and adjustable workpiece supports, ensuring safe and stable use. With dimensions of 510 × 270 × 310 mm and a weight of 25 kg, it is stable, compact, and ideal for workshops and craft laboratories.
Main features:
Grinding wheel Ø200 × 32 mm – grits K36 (roughing) and K80 (finishing)
Grinding wheel bore: 32 mm
Speed: 2850 rpm
Motor 0.90 kW (S1) / 1.25 kW (S6) – 230/400 V
Spark guards on both sides
Adjustable workpiece supports
Robust benchtop structure
Dimensions: 510 × 270 × 310 mm
Weight: 25 kg
Technical specifications
| Specification |
Value |
| Brand |
Bernardo |
| Model |
DS 200 S |
| Grinding wheel |
Ø200 × 32 mm – grits K36/K80 |
| Grinding wheel bore |
32 mm |
| Speed |
2850 rpm |
| Motor power S1 (100%) |
0.90 kW |
| Motor power S6 (40%) |
1.25 kW |
| Voltage |
230 V / 400 V |
| Machine dimensions (L × W × H) |
510 × 270 × 310 mm |
| Weight |
25 kg |
Standard equipment
Grinding wheel Ø200 mm K36 (roughing)
Grinding wheel Ø200 mm K80 (finishing)
Spark guards (both sides)
Adjustable workpiece supports
Logistics
Bernardo shipping: 5–9 business days (7 days to the South). Original spare parts available with 3–5 business days shipping. Customer support available in Italian.
Frequently asked questions
How do I choose the grit size of the grinding wheels for the Bernardo Double Grinder DS 2?
For roughing and heavy material removal: 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 DS 2 mounts Ø 200 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. A misaligned or out-of-shape wheel can cause excessive vibrations and risks to the operator.
Can the Bernardo Double Grinder DS 2 mount a leather or felt disc for polishing?
Yes. Most Bernardo double grinders can mount Ø 200 mm leather or felt discs on the same arbor as the grinding wheels — suitable for polishing metals, plastics, and wood. Verify arbor compatibility with Krollit.
What is the difference between DS and DSA in the grinder range?
The DS series is the standard double grinder with grinding wheels on both sides. The DSA series adds integrated dust extraction — essential when working with materials that produce fine dust (aluminum, non-ferrous metals, wood) in enclosed environments. The DSA is quieter and keeps the work environment cleaner.
Spare parts (grinding wheels, supports) available?
Original spare parts available with 3–5 business days shipping. Customer support available in Italian.
