Bernardo WBS 640 Pro Drum Sander Combo + 100 mm G100 Abrasive Roll – Professional Calibrated Sanding System
The combo combines the machine with complementary consumables for uniform and productive sanding.
Bernardo WBS 640 Pro is a drum sander for panel sanding with a working width of 635 mm and adjustable workpiece thickness from 5 to 130 mm. Two Ø130 × 635 mm sanding drums ensure minimal deflection and an even finish. Continuously variable feed speed from 0–6.2 m/min can be adapted to the material: softwoods up to 6.2 m/min for productivity, hardwoods around 2–3 m/min for greater precision. Drum speed is 1,550 rpm. The 2.2 kW (3.0 HP) motor is available for 230V single-phase / 400V three-phase power. Stable 670 × 635 mm table, minimum ergonomic working height of 850 mm. Dual 2 × Ø100 mm dust extraction ports help keep the work area clean.
100 mm × 50 m Abrasive Roll – Grit 100 is a professional sanding roll for the WBS 640 Pro. It is 100 mm wide, 50 m long and uses medium K100 grit, suitable for general sanding of medium and hardwoods such as beech, cherry and walnut. Durable abrasive construction supports consistent cutting performance across different wood species. Quick replacement.
Together: reliable drum sander + professional abrasive roll = uniform thickness sanding, smooth surfaces and preparation for staining or coating.
Who is the Bernardo WBS 640 Pro + G100 Abrasive Roll combo suitable for?
| User profile | Suitable? | Reason |
|---|
| Professional woodworking shop | Ideal | 635 mm working width, variable 0–6.2 m/min feed and twin sanding drums |
| Furniture production | Ideal | Suitable for repeated panel sanding with medium K100 finishing |
| Restoration workshop | Ideal | Low feed speeds allow controlled sanding on hardwoods and delicate pieces |
Not recommended for: casual hobby users due to professional size and investment; metal or plastic processing; workpieces shorter than 127 mm.
Technical specifications — Bernardo WBS 640 Pro
Sanding capacity
| Parameter | Value |
|---|
| Maximum sanding width | 635 mm |
| Minimum workpiece length | 127 mm |
| Minimum workpiece thickness | 5 mm |
| Maximum workpiece thickness | 130 mm |
| Sanding drums | 2 × Ø130 × 635 mm |
Feed and speed
| Parameter | Value |
|---|
| Continuously variable feed | 0–6.2 m/min |
| Drum speed | 1,550 rpm |
| Supported abrasive grits | K80 / K120 and other grits |
Motor and power supply
| Parameter | Value |
|---|
| Motor power | 2.2 kW (3.0 HP) |
| Voltage | 230V single-phase / 400V three-phase |
| Frequency | 50 Hz |
Table and dust extraction
| Parameter | Value |
|---|
| Table dimensions | 670 × 635 mm |
| Minimum working height | 850 mm |
| Dust extraction ports | 2 × Ø100 mm |
Dimensions and weight
| Parameter | Value |
|---|
| Machine dimensions (L × W × H) | 790 × 1,080 × 1,360 mm |
| Weight | approx. 223 kg |
| Country of origin | Austria |
Technical specifications — 100 mm × 50 m G100 Abrasive Roll
Abrasive roll features
| Parameter | Value |
|---|
| Roll width | 100 mm |
| Roll length | 50 m |
| Grit | 100 (K100, medium) |
| Abrasive material | Durable abrasive |
| Compatibility | WBS 640 Pro drum sanders and similar machines |
Applications
| Parameter | Details |
|---|
| Main use | Sanding solid wood, MDF and plywood panels |
| Recommended woods | Medium and hardwoods: beech, cherry, walnut, oak |
| Estimated working cycle | 50–100 hours of sanding, depending on use |
| Replacement | Quick |
Standard equipment — Complete Combo
Bernardo WBS 640 Pro:
-
2.2 kW motor
-
2 × Ø130 × 635 mm sanding drums
-
670 × 635 mm table
-
Maintenance tools
-
Italian user manual
-
CE certificate
100 mm × 50 m G100 Abrasive Roll:
-
50 m full roll
-
100 mm width
-
Grit 100, medium
-
Ready for cutting and fitting
Frequently asked questions
1. What is the difference between feed speeds from 0 to 6.2 m/min?
Low feed speeds, around 0–2 m/min, are better suited to hardwoods such as walnut, mahogany, oak and rosewood, where controlled material removal and surface quality are priorities.
Higher feed speeds, around 4–6.2 m/min, are suitable for softer or medium-density woods and sheet materials when higher productivity is required.
2. Is K100 grit suitable for all wood species?
K100 is a medium, versatile grit suitable for many medium and hardwoods, including beech, cherry, walnut and oak. It works well for standard calibrated sanding and pre-finishing.
Coarser K80 may be preferred for faster material removal, while finer K120 can be used when a smoother finish is required.
3. How long does the 100 mm × 50 m G100 roll last?
Service life depends on wood species, feed speed, sanding pressure and the amount of material removed. A 50 m roll provides material for multiple replacements on the sanding drums.
4. Does the WBS 640 Pro only accept G100?
No. Different abrasive grits can be used. Common options include K80, K100 and K120, while the roll width remains 100 mm.
5. Can the sander maintain consistent thickness?
The twin Ø130 × 635 mm drums are designed to apply consistent sanding pressure. Final accuracy depends on correct machine adjustment, abrasive condition, feed speed and maintenance.
6. What maintenance does the WBS 640 Pro require?
Regular maintenance includes cleaning the drums and dust extraction system, inspecting the abrasive, checking alignment and following the lubrication and service intervals specified in the manufacturer’s manual.
7. What dust extractor is recommended for the two Ø100 mm ports?
The machine should be connected to a dust extraction system with sufficient airflow for continuous drum sanding. Both Ø100 mm outlets should be connected to maintain effective dust removal and a clean working environment.
