Bernardo Surface Grinder BSG 3060 PLC

Bernardo BSG 3060 PLC Surface Grinder

The Bernardo BSG 3060 PLC is a professional surface grinder (tangential grinder), designed for precision, stability, and automation in flat surface machining. Equipped with a Siemens PLC control with touchscreen, it allows for easy programming of grinding cycles and automatic setting of table movements. The 305 x 635 mm table, with a longitudinal travel of 765 mm and a transverse travel of 340 mm, supports workpieces up to 270 kg with a magnetic chuck. The digital servo-assisted vertical feed allows for precise adjustments from 0.005 to 0.05 mm. The Ø 350 mm grinding wheel with a 4.0 kW motor ensures powerful and consistent machining, while the advanced hydraulic system with a separate unit and heat exchanger reduces vibrations and thermal deformations. With a weight of 2375 kg, it represents a solid, reliable machine ideal for mechanical workshops and precision departments.

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Main features:
CNC tangential grinder with Siemens PLC touch control
Table 305 x 635 mm, longitudinal travel 765 mm, transverse travel 340 mm
Working capacity up to 270 kg with magnetic chuck
Automatic servo-assisted vertical feed (0.005 – 0.05 mm)
Grinding wheel Ø 350 mm, 4.0 kW motor, 1450 rpm
Advanced hydraulic system with separate unit and heat exchanger
300 x 600 mm electric magnetic chuck included
Robust cast iron structure with a weight of 2375 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 days shipping. Customer support in Italian available.

Technical specifications

Specification	Value
Brand	Bernardo
Model	BSG 3060 PLC
Table dimensions	305 x 635 mm
No. / width of T-slots	3 / 14 mm
Magnetic chuck	300 x 600 mm
Max. longitudinal travel	765 mm
Max. transverse travel	340 mm
Max. distance spindle / table	580 mm
Max. workpiece weight (with chuck)	270 kg
Grinding wheel	Ø 350 x 40 x 127 mm
Hydraulic table speed	5 – 25 m/min
Automatic transverse feed	0.5 – 8 mm/stroke
Transverse rapid traverse	990 mm/min
Automatic vertical feed	0.005 – 0.05 mm
Vertical rapid traverse	480 mm/min
Grinding wheel motor power	4.0 kW
Spindle speed	1450 rpm
Hydraulic pump power	2.2 kW
Vertical feed power	0.5 kW
Machine dimensions (L x W x H)	2350 x 2220 x 1910 mm
Weight	approx. 2375 kg

Standard equipment

2-axis digital display ES-12 H with LCD
Siemens SMART-panel IE V3 with touchscreen
Electronic handwheel
Electric magnetic chuck 300 x 600 mm
Grinding wheel Ø 350 mm with flange
Support and balancing arbor
Parallel dresser
Diamond dressing tool
Coolant system
Centralized lubrication system
Machine feet
LED work light
Protective covers
Demagnetizing device
Safety splash guards
Tool set

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

View Krollit warranty terms

Frequently asked questions

What is the achievable grinding precision with the Bernardo BSG 3 surface grinder?

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

What does the suffix "PLC" mean in the Bernardo BSG 3 surface grinder 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 on batches of identical parts.

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

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

Does the Bernardo BSG 3 surface grinder require integrated coolant?

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

Spare parts and wheels available?

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