Bernardo Double Grinding Machine DSA 150

Bernardo Double Grinder DSA 150

The Bernardo Double Grinder DSA 150 is a compact and versatile benchtop machine, designed for sharpening, roughing, and finishing tools and metal parts. It is equipped with two Ø150 mm grinding wheels: a K36 abrasive wheel for roughing and a K80 fine wheel for finishing. Thanks to its speed of 2850 rpm and a 0.37 kW (S1) / 0.50 kW (S6) motor, powered by 230 V, it guarantees reliable performance for both professional and hobby use. The equipment includes spark protection on both sides, workpiece support, cooling tank, LED light, and wheel dresser, which enhance safety and practicality of use. With compact dimensions (345 × 270 × 275 mm) and a low weight (10 kg), the DSA 150 easily fits on any workbench, offering reliability and convenience of use.

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Key Features:
Grinding wheel Ø150 × 25.4 mm – grits K36 (roughing) and K80 (finishing)
Wheel bore: 12.7 mm
Speed: 2850 rpm
Motor 0.37 kW (S1) / 0.50 kW (S6) – 230 V
Spark protection on both sides
Adjustable workpiece support
Integrated cooling fluid tank
Integrated LED light
Wheel dresser included
Dimensions: 345 × 270 × 275 mm
Weight: 10 kg

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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.

Technical Specifications

Specification	Value
Brand	Bernardo
Model	DSA 150
Grinding wheel	Ø150 × 25.4 mm – grits K36/K80
Wheel bore	12.7 mm
Speed	2850 rpm
Motor power S1 (100%)	0.37 kW
Motor power S6 (40%)	0.50 kW
Voltage	230 V
Machine dimensions (L × W × H)	345 × 270 × 275 mm
Weight	10 kg

Standard equipment

Grinding wheel Ø150 mm K36 (roughing)
Grinding wheel Ø150 mm K80 (finishing)
Spark protection (both sides)
Workpiece support
Cooling fluid tank
Integrated LED light
Wheel dresser

Warranty terms and support procedures are available on the dedicated Krollit page.

View Krollit warranty terms

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 uses Ø 150 mm wheels — verify the correct format before purchasing replacement 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 for the operator.

Can the Bernardo Double Grinder DSA fit a leather or felt disc for polishing?

Yes. Most Bernardo double grinders can fit Ø 150 mm leather or felt discs on the same arbor as the abrasive 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 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 (wheels, supports) available?

Original spare parts available with 3–5 business days shipping. Customer support in Italian available.