Bernardo Double Grinder DS 150 S – K36/K80 grinding wheels, 230 V
The Bernardo Double Grinder DS 150 S / 230 V is a compact and versatile bench machine, designed for roughing, sharpening, and finishing operations. It is equipped with two Ø150 mm grinding wheels: a K36 for roughing and a K80 for finishing, ensuring precise and safe machining. With a rotation speed of 2850 rpm and a motor of 0.50 kW (S1) / 0.70 kW (S6), it provides reliable performance for hobbyists and professionals. The equipment includes spark guards on both sides and adjustable workpiece supports, which increase safety and stability during use. Thanks to its compact dimensions (430 × 195 × 230 mm) and low weight of 16 kg, it can be easily integrated into any workbench. A suitable solution for those who use a functional, robust, and safe bench grinder.
Main Features:
Grinding wheel Ø150 × 25 mm – K36 (roughing) and K80 (finishing) grits
Grinding wheel bore: 32 mm
Speed: 2850 rpm
Motor 0.50 kW (S1) / 0.70 kW (S6) – 230 V
Spark guards on both sides
Adjustable workpiece supports
Compact and robust structure
Dimensions: 430 × 195 × 230 mm
Weight: 16 kg
Technical specifications
| Specification |
Value |
| Brand |
Bernardo |
| Model |
DS 150 S |
| Grinding wheel |
Ø150 × 25 mm – K36/K80 grits |
| Grinding wheel bore |
32 mm |
| Speed |
2850 rpm |
| Motor power S1 (100%) |
0.50 kW |
| Motor power S6 (40%) |
0.70 kW |
| Voltage |
230 V |
| Machine dimensions (L × W × H) |
430 × 195 × 230 mm |
| Weight |
16 kg |
Standard equipment
Grinding wheel Ø150 mm K36 (roughing)
Grinding wheel Ø150 mm K80 (finishing)
Spark guards (both sides)
Workpiece support
Logistics
Bernardo shipping: 5–9 working days (7 days in the South). Original spare parts available with 3–5 working day 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 1?
For roughing and removing a lot of material: coarse-grit grinding wheel (36–60). For tool sharpening and precision work: medium-grit grinding wheel (80–120). For finishing and polishing: fine-grit grinding wheel (150–220) or felt disc. The Bernardo Double Grinder DS 1 uses Ø 150 mm grinding 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 grinding wheel dresser maintains the correct shape and reduces vibrations. A misaligned or misshapen grinding wheel can cause excessive vibrations and risks to the operator.
Can the Bernardo Double Grinder DS 1 be fitted with a leather or felt disc for polishing?
Yes. Most Bernardo double grinders can be fitted with Ø 150 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 an abrasive wheel 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 working day shipping. Customer support available in Italian.
