The Bernardo Proficenter 550 WQV is a metal lathe for professional use, with a distance between centers of 550 mm, a 0.75 kW / 230 V motor, and a weight of 165 kg. Krollit, official Bernardo distributor since 2007.
- Distance between centers: 550 mm
- Center height: 125 mm
- Swing over bed: 250 mm
- Spindle bore: 26 mm
- Spindle bore taper: MT 4
- Speeds: 50 – 2000 / 100 – 2000 rpm
- Longitudinal feed: (6) 0.07 – 0.40 mm/rev
- Cross feed: (4) 0.03 – 0.075 mm/rev
Who uses the Proficenter 550 WQV and for what
Mechanical workshops and artisan turners use the Proficenter 550 WQV for cylindrical and conical turning and threading operations on steels and alloys. The machine supports the production of spare parts, shafts, bushings, and small series.
Its place in the Bernardo range
The Bernardo Proficenter 550 WQV is part of the Bernardo metal lathe range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance levels: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Machine shipping in 5-9 working days (7 days to the South). For spare parts and accessories, shipping in 3-5 working days from Krollit warehouse. Italian-speaking customer support available for technical documentation, product sheets, and spare parts order management. Krollit has been an official distributor since 2007.
Who is the Proficenter 550 WQV for
| Profile |
Compatibility |
Reason |
| Mechanical workshops and artisan turners |
Suitable |
Cylindrical and conical turning and threading on steels and alloys |
| Industrial maintainers and repair centers |
Suitable |
Machining of spare parts, shafts, bushings, and small production |
| Hobbyists and model making |
To be evaluated |
Professional machine: for occasional home use, consider smaller benchtop models |
Not suitable for: applications outside the technical specifications declared by the manufacturer. For doubts about compatibility, contact Krollit customer support.
Machining Capacity
| Steel drilling capacity |
16 mm |
| Face milling capacity |
50 mm |
| End milling capacity |
16 mm |
Spindle and Speed
| Distance between centers |
550 mm |
| Spindle bore |
26 mm |
| Spindle bore taper |
MT 4 |
| Speeds |
50 – 2000 / 100 – 2000 rpm |
| Spindle – column distance |
150 mm |
| Spindle speed |
50 – 2250 rpm |
| Spindle taper |
MT 2 |
Table and Dimensions
| Center height |
125 mm |
| Head inclination |
-90° / +90° |
| Dimensions (L x W x H)* |
1210 x 610 x 860 mm |
Motor and Power Supply
| Lathe motor power S1 100% |
0.75 kW / 230 V |
| Lathe motor power S6 40% |
1.0 kW / 230 V |
| Milling motor power S1 100% |
0.50 kW / 230 V |
| Milling motor power S6 40% |
0.75 kW / 230 V |
Other Specifications
| Swing over bed |
250 mm |
| Longitudinal feed |
(6) 0.07 – 0.40 mm/rev |
| Cross feed |
(4) 0.03 – 0.075 mm/rev |
| Metric threads |
18 (0.2 – 3.5 mm) |
| Inch threads |
21 (8 – 56 TPI) |
| Tailstock quill travel |
70 mm |
| Tailstock taper |
MT 2 |
| Cross slide T-slot |
10 mm |
| Vertical head adjustment |
195 mm |
| Weight |
165 kg |
Frequently Asked Questions
What materials can the Proficenter 550 WQV work on?
Mild steels, alloy steels, cast iron, brass, and aluminum within the feed limits indicated in the technical specifications.
For hardened or high-strength alloy steels, it is recommended to reduce cutting speed and depth of cut. The machine is sized for general mechanical production; for special alloys, check the compatibility of the spindle and tailstock Morse taper.
What is included in the standard equipment?
The equipment includes a self-centering chuck, tailstock, steady rest, threading accessories, and a set of wrenches.
For the exact list of accessories and spare parts provided, consult the manufacturer's technical sheet. Krollit provides support for original Bernardo spare parts with delivery times of 3-5 working days.
What type of power supply does it require?
See the voltage data in the technical table. Compact benchtop machines are often 230 V single-phase, professional models are 400 V three-phase.
For 400 V three-phase models, an industrial power line is required. Verify the availability of adequate power supply in the workshop before purchase.
Is the machine suitable for series production?
It depends on the model class: professional Bernardo lathes handle continuous cycles, while benchtop models are suitable for medium use.
Profi and Apollo models are designed for intensive multi-shift use; Hobby and Goliath series for occasional use or small workshops.
How much does it weigh and what installation does it require?
The weight varies significantly by model: see the "Weight" entry in the technical table.
Machines over 500 kg require industrial flooring and fastening with anchors. Benchtop models up to 100 kg are installed on a sturdy bench with an adequately sized top.
