The Bernardo BS 100 x 1220 S-2 belt sander is designed for deburring, chamfering, and finishing weld seams on stainless steel and metals. It features a 100 × 1,220 mm abrasive belt, 9.5 / 19 m/s belt speed (2 speeds), integrated Ø 75 mm dust extraction, a 1.5 kW (S1) and 2.2 kW (S6 40%) 400V three-phase motor. Machine dimensions are 690 × 400 × 940 mm, weighing 41 kg. Suitable for mechanical workshops, metalworking shops, blacksmiths, joineries, and metalworking laboratories. Distributed in Italy by Krollit as an official Bernardo distributor since 2007.
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Abrasive belt: 100 × 1,220 mm
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Belt speed: 9.5 / 19 m/s (2 speeds)
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Dust extraction: Ø 75 mm
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Motor (S1 / S6): 1.5 kW / 2.2 kW
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Voltage: 400V three-phase
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Weight: 41 kg
Who uses the BS 100 x 1220 S-2 and for what
The Bernardo BS 100 × 1220 S-2 is a long belt bench sander (belt only, no grinding disc) designed for deburring weld seams, chamfering, and finishing long surfaces. Construction feature: 100 × 1,220 mm abrasive belt (wider than the 75 × 1,180 mm of the BDS) for a larger contact surface with the workpiece, suitable for long weld seams. Dual speed (9.5 / 19 m/s): the low speed for stainless steel (reduces heat, preventing overheating stains), the high speed for rapid deburring on standard steels. Balanced contact wheel to reduce vibrations during sanding, important for long operations where bench stability affects finish quality. IP54 motor protection with low voltage release for operator safety in case of power outages. Base included for stability in the workshop. In Krollit customer laboratories, the BS 100 × 1220 S-2 is chosen by metal fabricators, workshops working with stainless steel (industrial kitchens, balustrades, railings), and blacksmiths for finishing welded frames.
Its place in the range
The Bernardo belt sander range is organized into 4 models by application: BDS 75 (combined belt 75 + disc 150, 1 speed) and BDS 75-2 (same configuration, 2 speeds) for general workshops with mixed operations; BS 100 × 1220 S-2 (belt only, long 100 × 1,220, 2 speeds, base) for metalworking shops with long welds to finish; KBR 100 × 2000 Duo (belt 100 × 2,000 + device for pipes Ø 20-76 mm) for workshops specializing in tubular metalwork.
The BS 100 × 1220 S-2 differs from the BDS family in: wider belt (100 vs 75 mm), longer belt (1,220 vs 1,180 mm), belt-only configuration (without disc), integrated base. It specializes in deburring long welds and processing stainless steel where a uniform finish is crucial. For general workshops without long welds, the BDS 75 or 75-2 is more economical and versatile; for processing pipes and profiles, the KBR 100 × 2000 Duo is specialized.
Krollit Logistics and Support
Bernardo shipping in 5-9 working days (7 days for Southern Italy). With a weight of 41 kg, it requires two people for unloading and handling. Dimensions 690 × 400 × 940: check laboratory access. Original Bernardo abrasive belts, grinding discs, and spare accessories available from stock with 3-5 working day shipping. Customer support available in Italian.
Who is the BS 100 x 1220 S-2 for
| Profile |
Compatibility |
Reason |
| Advanced metal hobbyist |
Adequate |
For standard hobby use, it is oversized: specializing in long welds and stainless steel requires specific skills. |
| Metalworking with welding |
Recommended |
100 × 1,220 mm belt for long weld seams. Dual speed (9.5/19 m/s) for stainless steel and standard steels. IP54 motor protection with low voltage release. |
| Stainless steel workshop (kitchens, railings, balustrades) |
Recommended |
Low speed 9.5 m/s reduces heat, preventing overheating stains on stainless steel. Balanced contact wheel reduces vibrations during sanding. |
Not suitable for: mixed operations with a grinding disc (the BDS 75/75-2 with combined belt+disc configuration are correctly sized); processing pipes and profiles (the KBR 100 × 2000 Duo is specialized); single-phase 230V power supply (all Bernardo sanders require industrial three-phase 400V); use in dusty environments without connected extraction (abrasive metal dust is dangerous for operator health).
Abrasives
| Specification |
Value |
| Abrasive belt |
100 × 1,220 mm |
| Belt speed |
9.5 / 19 m/s (2 speeds) |
Extraction
| Specification |
Value |
| Extraction diameter |
Ø 75 mm |
Motor and power supply
| Specification |
Value |
| Motor power S1 100% |
1.5 kW |
| Motor power S6 40% |
2.2 kW |
| Voltage |
400V three-phase / 50 Hz |
Dimensions and weight
| Specification |
Value |
| Machine dimensions (L × W × H) |
690 × 400 × 940 mm |
| Weight |
41 kg |
Compliance
| Specification |
Value |
| Marking |
CE |
| Directive |
Machinery Directive 2006/42/EC |
Standard equipment
- Bernardo BS 100 x 1220 S-2 belt sander
- Abrasive belt grit 80
- Sanding table and support
- Graphite coating for belt smooth running
- Ø 75 mm extraction connection
- IP54 motor protection switch
- Foldable protective screen
- Machine base
- Separate emergency stop button
- User manual in Italian
Frequently Asked Questions
Why 400V three-phase and not 230V single-phase?
The sander's motor (1.1-3.3 kW depending on the model) requires power that a civil single-phase 230V line cannot stably provide. Industrial three-phase 400V is mandatory for professional use.
For workshops without an industrial three-phase 400V line, it is necessary to request connection from the electricity provider (typical cost €500-€2,000) or use a single-phase to three-phase converter (cost €200-€800, suitable only for occasional use due to limited durability). For workshops with planned continuous use, a dedicated industrial three-phase meter is recommended. Krollit does not sell sanders with single-phase motors: the required power does not allow it.
How to choose the abrasive belt grit?
Low grits (40-60) for aggressive roughing (fast material removal, deburring raw pieces); medium grits (80-120) for standard workshop finishing; high grits (180-400) for fine pre-polishing finishing. Changing grit requires replacing the abrasive belt or disc.
Abrasive belts are consumables: typical lifespan is 2-10 hours of actual work depending on grit and material. For professional use, it is recommended to keep a stock of belts of various grits. Original Bernardo abrasive belts (grits 36, 60, 80, 120, 180, 240) available from stock with 3-5 working day shipping.
What is the graphite coating for?
The graphite coating on the front surface of the belt (the area where the workpiece contacts the belt) significantly reduces friction between the belt and the support, lowering the working temperature and extending the lifespan of the abrasive belt (typically +30-50% compared to belts without coating).
The graphite coating is a constructive feature on professional Bernardo sanders: it also reduces noise and heat generation on the workpiece, a crucial characteristic for stainless steel processing where excessive heat causes overheating stains that are difficult to remove. For intensive professional use, the coating is a consumable component: replaceable by an authorized Bernardo service center.
Is the machine safe for use by untrained personnel?
The sander is an industrial machine that requires basic training on safe use: compliance with guards, use of PPE (safety glasses, gloves, dust masks), emergency procedures. The machine has standard protections (belt guard, workpiece support, safety switch) but use by untrained personnel carries a risk of serious injury.
For professional environments, staff training is mandatory according to occupational safety regulations (Legislative Decree 81/2008). For vocational schools and educational laboratories, the presence of an experienced operator is recommended during student use. The machine is CE marked in accordance with Machinery Directive 2006/42/EC.
How much noise does it generate during operation?
The typical sound level of belt sanders is 80-90 dB during operation under load. For prolonged use in enclosed spaces, the use of ear protection (PPE compliant with EN 352) is mandatory.
The sound level varies depending on: belt speed (higher speeds generate more noise), workpiece material (steel makes more noise than wood), condition of the abrasive belt (worn belts vibrate and make more noise). For shared environments, it is recommended to position the machine in a dedicated room or with acoustic barriers. For professional workshops, noise risk assessment is mandatory according to Legislative Decree 81/2008.
