Bernardo BM 25 SB – Belt-Driven Bench Drill 400 V

Bernardo Pillar Drill BM 25 SB with V-belt drive and digital display

The Bernardo BM 25 SB pillar drill is a robust and precise machine, suitable for workshops and laboratories that require professional drilling up to 25 mm. It features a digital display for quill travel and an LED light that improves visibility of the work area.

Thanks to its cast iron pulleys and professional quality bearings, it ensures smooth operation and high spindle concentricity. The drilling table, with T-slots and coolant channels, can rotate 360° and be adjusted in height via a rack. The high-torque aluminum motor, compliant with IP54 standards, ensures reliable performance, while the possibility of right/left rotation expands its applications. The machine includes a keyless chuck, safety guards, and a cross laser for high precision.

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Key Features

Digital display for quill travel included
Integrated LED lamp to illuminate the work area
Cast iron pulleys for quiet and smooth operation
Professional quality ball bearings for high concentricity
Work table with T-slots and coolant channels
Table tiltable and rotatable 360° with rack height adjustment
High-torque aluminum motor compliant with IP54
Selectable right/left rotation
Precision keyless drill chuck included (1–16 mm / B18)
Cast iron base with polished T-slots for increased stability
Adjustable guard with microswitch and separate emergency switch

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Technical Specifications

Specification	Value
Max. drilling capacity	25 mm
Drill chuck	1 – 16 mm / B18
Spindle taper	MT 3
Spindle speed	(12) 150 – 2450 rpm
Spindle to column distance	220 mm
Table tilt	360°
Max. spindle to table distance	765 mm
Spindle to base distance	1230 mm
Quill travel	120 mm
Column diameter	92 mm
Table size / T-slots	300 x 300 mm / 14 mm
Usable base area	290 x 270 mm
Motor power S1 100%	1.1 kW / 400 V
Motor power S6 40%	1.6 kW / 400 V
Machine dimensions (L x W x H)	450 x 750 x 1680 mm
Weight	approx. 110 kg

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Standard equipment

Keyless drill chuck 1–16 mm / B18
Drill arbor MT 3 / B18
Selector for right/left rotation
Integrated LED lamp
Cross laser device
T-nuts
Digital quill travel indicator
Height-adjustable guard with microswitch
Separate emergency switch

Why buy 400 V V-belt Pillar Drill BM 25 SB from Krollit

Purchasing the 400 V V-belt Pillar Drill BM 25 SB from Krollit means choosing not only a machine for metalworking hobbyists, but also concrete support before and after the purchase.
Krollit assists professionals, craftsmen, and workshops in choosing the most suitable machine, offering assistance, technical support, and spare parts management.

Logistics

Bernardo shipping: 5–9 business days (7 days for Southern Italy). Original spare parts available with 3–5 business day shipping. Customer support available in Italian.

Frequently Asked Questions

Belt-driven pillar drill vs. geared pillar drill: which to choose?

V-belt drills (like the Bernardo BM 25 SB) are quieter, less expensive, and have sufficient torque for drilling up to Ø 25 mm in standard steel. Geared drills (GB series) deliver higher torque at low speeds — necessary for deep boring, large diameter tapping, and drilling hard materials over Ø 30 mm. For standard drilling up to Ø 25 mm, belt drive is the correct choice.

Up to what diameter can the Bernardo BM 25 SB drill in steel?

Nominal capacity Ø 25 mm in S235 steel with HSS drill bit. In AISI 304 stainless steel, capacity is reduced by 30–40% — use specific drill bits for stainless steel and reduced speed with coolant. In aluminum, capacity increases by 30%. For holes over Ø 20 mm in steel, always use the lowest available speed and controlled manual feed.

How to choose the correct speed for the material?

Optimal peripheral speed: mild steel 15–25 m/min, stainless steel 8–15 m/min, aluminum 60–100 m/min, plastic 40–80 m/min. The formula: n (rpm) = (v × 1000) / (π × d). For Ø 10 mm drill bits in steel: 500–800 rpm. Too high a speed burns the cutting edge; too low causes vibrations and long chips that wrap around the drill bit. The belt drive allows selection of predefined speeds — choose the one closest to the calculated optimal speed.

400 V power supply: is a special system required?

400 V three-phase — requires an industrial electrical system. Check for three-phase power and the power of the electrical panel before purchasing.

Spare parts available?

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