The Bernardo BPK 35 S2 is a profile and tube bending machine for professional use, featuring 146 mm diameter rollers, two bending speeds (4.5 and 9 m/min), a 0.85/1.1 kW three-phase 400 V motor, and weighing 230 kg. It is manufactured in Austria by Bernardo Maschinenfabrik, founded in 1978. Distributed in Italy by Krollit, an official Bernardo distributor since 2007.
- Upper roller diameter: 146 mm
- Lower roller diameter: 146 mm
- Shaft diameter: 30 mm
- Bending speed: 4.5 / 9 m/min
- Motor power: 0.85 / 1.1 kW
- Power supply: 400 V three-phase
- Dimensions (L x W x H): 750 x 620 x 1,500 mm
- Weight: 230 kg
Who uses the BPK 35 S2 and for what
The BPK 35 S2 is used by metalworking shops for bending handrails, frames, and steel and stainless steel structures, by window and door frame manufacturers for processing steel and brass profiles, and by custom metal furniture manufacturers who require repeatable bending radii. The ability to operate in both horizontal and vertical positions extends its applications to contexts with limited space. Optional roller sets allow the processing of round, square, flat tubes and special profiles on a single machine.
Who is the BPK 35 S2 for
| Profile |
Compatibility |
Reason |
| Professional metal fabrication |
Suitable |
146 mm rollers and 30 mm shaft allow bending of structural steel and stainless steel profiles; two speeds allow productivity to be adapted to the material |
| Window/door frame and metal furniture workshop |
Suitable |
Horizontal and vertical use, optional roller sets for different profiles, foot pedal with emergency stop included for continuous operation |
| Hobbyist or small craftsman with occasional use |
Not indicated |
400 V three-phase, 230 kg machine: requires industrial electrical system and mechanical lifting for installation; cost/use ratio is not suitable for low volumes |
Not suitable for: environments without 400 V three-phase power supply and for bending non-metallic materials, for which the hardened steel rollers are not designed.
Rollers and bending
| Upper roller diameter |
146 mm |
| Lower roller diameter |
146 mm |
| Shaft diameter |
30 mm |
| Bending speed |
4.5 / 9 m/min |
| Workable materials |
Steel, stainless steel, brass, profiles and tubes |
| Working position |
Horizontal and vertical |
Motor and power supply
| Motor power (speed 1) |
0.85 kW |
| Motor power (speed 2) |
1.1 kW |
| Power supply |
400 V three-phase |
| Motor type |
Two-speed, two-phase |
Dimensions and weight
| Width |
750 mm |
| Depth |
620 mm |
| Height |
1,500 mm |
| Weight |
230 kg |
Standard equipment
- Standard roller set
- Side guide rollers
- Foot pedal with emergency stop
- 2-speed motor
Frequently asked questions
What materials can be bent with the Bernardo BPK 35 S2?
The BPK 35 S2 works with steel, stainless steel, brass, and other metals in the form of round, square, flat tubes, and profiles. The rollers are made of hardened and ground steel with a diameter of 146 mm.
The standard roller set included covers the most common profiles. Additional optional roller sets are available from Krollit to extend processing to special profiles. The machine is not designed for non-metallic materials such as plastic or wood.
Does the BPK 35 S2 run on single-phase or require three-phase power?
It requires a 400 V three-phase power supply. There is no 230 V single-phase version. Before purchasing, it is advisable to check the availability of three-phase power in the workshop.
The 2-speed motor delivers 0.85 kW at the first speed (4.5 m/min) and 1.1 kW at the second (9 m/min). The absence of a single-phase version is a design choice that allows for higher bending torques compared to machines of similar size.
What is the purpose of the BPK 35 S2's dual bending speed?
The two speeds (4.5 and 9 m/min) allow the machine to be adapted to the material: low speed for thick steel profiles or tight radii, high speed for more ductile materials or repetitive production work.
Speed change occurs via the two-speed, two-phase motor included as standard, without additional accessories. The foot pedal with right/left inverter and emergency stop is included and allows control of the rotation direction without interrupting the work.
Is it possible to use the BPK 35 S2 in a vertical position?
Yes. The machine is designed to operate in both horizontal and vertical positions, which allows it to adapt to confined workspaces or specific operational needs.
Vertical use is useful for bending long profiles in environments where available width is limited. The side guide rollers included as standard support the material in both configurations.
What accessories are available for the BPK 35 S2?
Bernardo offers optional roller sets that allow working with additional profiles beyond the standard set included. Optional sets are purchased separately and are available from Krollit.
The set included in the delivery comprises the standard roller set, side guide rollers, foot pedal with emergency stop, and the 2-speed motor. To check the compatibility of a specific roller set with the material to be worked, contact Krollit technical support at +39 0825-1494022.
How is the BPK 35 S2 maintained?
Routine maintenance involves periodic lubrication of the hardened and ground special steel shafts and checking the mechanical tightening of the manually fed upper roller.
