Bernardo Surface Grinder BSG 2550 PLC
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Description
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Description
Bernardo BSG 2550 PLC Surface Grinder
The Bernardo BSG 2550 PLC is a professional-grade surface grinder equipped with a Siemens PLC control with a touchscreen that allows for easy programming of simple and repetitive grinding cycles. The 250 x 510 mm table, with a maximum longitudinal travel of 560 mm and transverse travel of up to 275 mm, supports workpieces up to 180 kg with a magnetic chuck. The advanced hydraulic system ensures smooth and consistent table movement even under heavy loads. The servo-assisted vertical feed allows for precise adjustments from 0.005 to 0.05 mm, with rapid return at the end of the cycle. Includes a 2-axis digital readout, 250 x 500 mm magnetic chuck, Ø 200 mm grinding wheel, coolant system, and centralized lubrication. With a robust cast iron structure and a weight of 1750 kg, it guarantees stability, precision, and a long service life. An ideal machine for workshops and production departments that demand quality and productivity.
Key Features:
Surface grinder with Siemens PLC touch control
250 x 510 mm table, 560 mm longitudinal travel, 275 mm transverse travel
Capacity up to 180 kg with magnetic chuck
Servo-assisted automatic vertical feed (0.005 – 0.05 mm)
Ø 200 mm grinding wheel, 2850 rpm speed
250 x 500 mm electric magnetic chuck included
Latest generation hydraulic system for smooth and quiet table movement
Robust grey cast iron construction with a weight of 1750 kg
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Bernardo |
| Model | BSG 2550 PLC |
| Table dimensions | 250 x 510 mm |
| No. / width of T-slots | 1 / 14 mm |
| Magnetic chuck | 250 x 500 mm |
| Max. longitudinal travel | 560 mm |
| Max. transverse travel | 275 mm |
| Max. distance spindle / table | 450 mm |
| Max. workpiece weight (with chuck) | 180 kg |
| Grinding wheel | Ø 200 x 20 x 31.75 mm |
| Hydraulic table speed | 5 – 25 m/min |
| Automatic transverse feed | 0.5 – 8 mm/stroke |
| Rapid transverse feed | 990 mm/min |
| Automatic vertical feed | 0.005 – 0.05 mm |
| Rapid vertical feed | 480 mm/min |
| Grinding wheel motor power | 2.2 kW |
| Spindle speed | 2850 rpm |
| Hydraulic pump power | 0.75 kW |
| Vertical feed power | 0.5 kW |
| Machine dimensions (L x W x H) | 1900 x 2050 x 1840 mm |
| Weight | approx. 1750 kg |
Standard Equipment
ES-12 H 2-axis digital readout with LCD
Siemens SMART-panel IE V3 with touchscreen
Electronic handwheel
250 x 500 mm electric magnetic chuck
Ø 200 mm grinding wheel with flange
Balancing stand and arbor
Parallel dresser
Diamond dressing tool
Coolant system
Centralized lubrication system
Machine feet
LED work light
Protective covers
Demagnetizing device
Splash guards and safety fences
Tool kit
Logistics
Bernardo shipping: 5–9 working days (7 days to the South). Original spare parts available with 3–5 working days shipping. Customer support available in Italian.
Frequently Asked Questions
What is the achievable grinding precision with the Bernardo BSG 2 Surface Grinder?
Bernardo surface grinders achieve dimensional tolerances of IT5–IT6 and roughness Ra 0.4–0.8 µm under optimal conditions. The actual precision depends on the condition of the grinding wheel (periodic dressing), the workpiece material, the coolant, and the operator's experience.
What does the suffix "PLC" mean in the Bernardo BSG 2 Surface Grinder model?
The PLC suffix indicates that the grinder is equipped with a 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 grinding wheel — metal residues contaminate the ground surface.
Does the Bernardo BSG 2 Surface Grinder require an integrated coolant?
BSG and FSM surface grinders are equipped with an integrated cooling system — essential for precision grinding of 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 grinding wheels available?
Original spare parts available with 3–5 working days shipping. Customer support available in Italian.
