Bernardo KPE 400 is a combined sander for professional use, with a 400 x 50 mm polishing disc, 350 x 50 mm round wire brush, 32 mm bore and rotation speed 1,450 rpm. 5.5 kW (S1) induction motor, 400 V three-phase supply, ball-bearing rotor for quiet running. Made in Austria. Distributed in Italy by Krollit, official Bernardo distributor since 2007.
- Polishing disc: 400 x 50 mm
- Round wire brush: 350 x 50 mm
- Bore: 32 mm
- Rotation speed: 1,450 rpm
- Motor output S1 (continuous 100%): 5.5 kW
- Motor input S6 (intermittent 40%): 7.5 kW
- Supply: 400 V three-phase
- Extraction connections: 50/50 mm (dual outlet)
- Dimensions: 980 x 435 x 495 mm
- Weight: approx. 90 kg
- Induction motor, ball-bearing rotor
Who uses the Bernardo KPE 400 and what for
A machine designed for steel fabricators, workshops and businesses that alternate several finishing operations on the same workpiece. It combines sanding, deburring and polishing at one station: the Ø 400 mm disc works flat surfaces, the 350 mm round wire brush removes surface rust, paint and cutting burrs, while optional discs and polishing pastes achieve finishes up to mirror gloss. One machine for three operations reduces workshop footprint and simplifies spare parts management. The side-closed guard reduces spark scatter.
Krollit logistics and support
Shipping 5–9 working days (7 days for southern regions). For machines of this weight, delivery with inspection on receipt. Technical support in Italian available for the entire product life at +39 0825-1494022. Original Bernardo spare parts available from the Krollit warehouse, Monteforte Irpino (AV).
Who the Bernardo KPE 400 is for
| Profile | Suitability | Reason |
|---|
| Steel fabrication | Suitable | 5.5 kW motor and heavy build for continuous finishing |
| Workshop with multiple operations | Suitable | Sanding, deburring and polishing on one machine |
| Mirror polishing | Suitable | Compatible with optional discs and polishing pastes |
| Hobbyist with single-phase supply | Not suitable | Supply 400 V three-phase, cannot be connected to 230 V single-phase |
Not suitable for: users without a 400 V three-phase supply in the workshop, and for mirror polishing without the optional felt discs and polishing pastes, which are needed for the final finish.
Technical specifications
Disc and tools
| Polishing disc | 400 x 50 mm |
| Round wire brush | 350 x 50 mm |
| Bore | 32 mm |
| Rotation speed | 1,450 rpm |
Motor and supply
| Motor type | Three-phase induction |
| Motor output S1 (continuous 100%) | 5.5 kW |
| Motor input S6 (intermittent 40%) | 7.5 kW |
| Voltage | 400 V three-phase |
| Rotor | Ball-bearing mounted |
Extraction, dimensions and weight
| Extraction connections | 50/50 mm (dual outlet) |
| Guard | Side-closed, reduces spark scatter |
| Width | 980 mm |
| Depth | 435 mm |
| Height | 495 mm |
| Weight | approx. 90 kg |
| Article number | 05-1176 |
Standard equipment
- 1 soft polishing disc Ø 400 x 50 mm (pre-fitted)
- Round wire brush Ø 350 x 50 mm
- Extraction hood set
- Adjustable workpiece support
- Side-closed protective guard
- CE certificate
- Bernardo manufacturer warranty 24 months
Optional accessories
| Code | Description |
|---|
| 05-1845 | Soft polishing disc Ø 400 x 50 mm, bore 32 mm |
| 05-1846 | Hard polishing disc Ø 400 x 50 mm, bore 32 mm |
| 05-1834 | Round wire brush Ø 350 x 50 mm, bore 32 mm |
| 56-1044 | Base stand model G |
| 56-10484 | Base stand UGA 2 with extraction |
Frequently asked questions
What is the difference between the soft and hard polishing disc?
The soft disc, supplied as standard, removes material faster and suits more aggressive work. The hard disc keeps its shape better over time and is preferable for finer, more uniform finishes.
For general professional use the soft disc is the standard choice. Both are 400 x 50 mm with a 32 mm bore; Krollit technical service is available at +39 0825-1494022 for selection by material.
Can I use the KPE 400 to mirror-polish without a felt disc?
No. To achieve a mirror finish you need felt discs and polishing pastes, available as optional accessories. The standard disc and brush are abrasive and do not produce the final polish.
The machine is set up to mount polishing discs with a 32 mm bore. Krollit can indicate the compatible discs and pastes according to the material to be treated.
Do I need to connect an extractor?
Strongly recommended. Disc and brush generate fine metal dust that rises into the air; without extraction the operator inhales it continuously. The two Ø 50 mm outlets are designed for linking to an external extraction system.
Complete dust containment is achieved only with the extractor connected. The optional UGA 2 base stand with integrated extraction is available; alternatively Krollit can indicate compatible extraction units.
Does the machine generate vibration?
The induction motor and ball bearings favour quiet running and reduced vibration during work. The side-closed guard also reduces spark scatter.
To contain residual vibration, the machine should be fixed to a stable bench or base stand. On light or unsecured bases vibration tends to increase; the optional model G base stand is available.
How do service and spare parts work in Italy?
Technical support is in Italian for the entire product life, and original Bernardo spare parts are available from the Krollit warehouse in Monteforte Irpino (AV). Support: +39 0825-1494022.
The Bernardo manufacturer warranty is 24 months on material and manufacturing defects and does not cover wear of discs and brushes, which are consumables. Replacement polishing discs and brushes can be ordered with the codes listed above.
