Bernardo FSM 2550 Surface Grinder

Bernardo Surface Grinder FSM 2550

The Bernardo Surface Grinder FSM 2550 is a high-performance professional machine for grinding flat surfaces with precision and stability. Thanks to the flat V-longitudinal guide and the double V-transversal guide, it ensures smooth and precise movements. The spindle is equipped with preloaded, backlash-free axial and radial bearings, guaranteeing consistent and accurate grinding. The machine features an advanced hydraulic system with a heat exchanger to reduce vibrations and thermal loads, maintaining smooth table movement even with heavy loads. Standard equipment includes a 2-axis digital display, a 250 x 500 mm permanent magnetic chuck, a centralized lubrication system, and numerous accessories. With a Ø 200 mm grinding wheel, 1.5 kW motor, and 2850 rpm speed, it is suitable for mechanical workshops and precision departments.

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Key Features:
Professional surface grinder for precision surfaces
Flat V-longitudinal guide and double V-transversal guide
Spindle with preloaded, backlash-free axial and radial bearings
Hydraulic system with heat exchanger for reduced vibrations
Table with 560 mm longitudinal travel and 260 mm transversal travel
250 x 500 mm permanent magnetic chuck included
ES-12 H 2-axis digital display
Centralized lubrication of the guides
Grinding wheel Ø 200 mm – 1.5 kW motor – 2850 rpm
Solid construction, machine weight 1010 kg

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Logistics

Bernardo shipping: 5–9 working days (7 days to the South). Original spare parts available with 3–5 working day shipping. Customer support in Italian available.

Technical Specifications

Specification	Value
Brand	Bernardo
Model	FSM 2550
Table dimensions	250 x 520 mm
T-slots / width	1 / 14 mm
Permanent magnetic chuck	250 x 500 mm
Max. longitudinal travel	560 mm
Max. transversal travel	260 mm
Max. distance grinding wheel – table	450 mm
Max. workpiece weight*	150 kg
Grinding wheel	Ø 200 x 20 x 31.75 mm
Table speed (hydraulic)	3 – 20 m/min
Transversal adjustment	4 mm/revolution – scale 0.02 mm
Vertical adjustment	2 mm/revolution – scale 0.01 mm
Grinding wheel motor power	1.5 kW
Spindle speed	2850 rpm
Hydraulic pump power	1.5 kW
Machine dimensions (L x W x H)	1700 x 1400 x 1750 mm
Weight	approx. 1010 kg
Note	*with magnetic chuck

Standard equipment

ES-12 H 2-axis digital display with LCD screen
Grinding wheel Ø 200 mm
Grinding wheel flange
LED work light
Permanent magnetic chuck 250 x 500 mm
Balancing stand
Balancing shaft
Protective cover
Demagnetization device
Cooling system
Diamond dresser
Machine feet
Centralized lubrication
Tool set

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

View Krollit warranty terms

Frequently Asked Questions

What grinding precision can be achieved with the Bernardo Surface Grinder FSM 2?

Bernardo surface grinders achieve, under optimal conditions, dimensional tolerances of IT5–IT6 and roughness Ra 0.4–0.8 µm. Actual precision depends on the condition of the grinding wheel (periodic dressing), workpiece material, coolant, and operator experience.

What does the "PLC" suffix mean in the Bernardo Surface Grinder FSM 2 model?

The PLC suffix indicates that the grinder is equipped with programmable PLC control — it allows setting automatic grinding cycles (number of passes, depth per pass, feed) without manual intervention during the cycle. Compared to the manual version, it reduces cycle times and produces more repeatable results for batches of identical parts.

Which grinding wheel to use for steel vs. cast iron vs. aluminum?

Steel: aluminum oxide (Al₂O₃) grinding wheel A46K–A60K. Cast iron: silicon carbide (SiC) grinding wheel C46K–C60K. Aluminum: silicon carbide grinding wheel C46J–C60J with abundant lubrication. Do not mix different materials on the same grinding wheel — metal residues contaminate the ground surface.

Does the Bernardo Surface Grinder FSM 2 require integrated coolant?

BSG and FSM surface grinders are equipped with an integrated cooling system — essential for precision grinding on hardened steel to avoid surface burns that alter the material's structure. Always use the appropriate type of coolant for the material being processed.

Are spare parts and grinding wheels available?

Original spare parts available with 3–5 working day shipping. Customer support in Italian available.