The Bernardo RBM 25 manual ring bender is a sheet metal bending machine for professional use, weighing 165 kg. Krollit, official Bernardo distributor since 2007.
- Shaft diameter: 30 mm
- Upper roller diameter: 98 mm
- Lower roller diameter: 118 mm
- Width: 560 mm
- Depth: 450 mm
- Height: 1400 mm
Who uses the RBM 25 manual ring bender and for what
Metal fabrication shops and workshops use the RBM 25 manual ring bender for bending sheet metal in the manufacture of cabinets, profiles, and metal casings.
Its place in the Bernardo range
The Bernardo RBM 25 manual ring bender is part of the Bernardo sheet metal bending machine range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performances: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for assistance with selection.
Krollit Logistics and Support
Machine shipping in 5-9 business days (7 days to Southern Italy). For spare parts and accessories, shipping in 3-5 business days from Krollit warehouse. Customer support in Italian is available for technical documentation, product sheets, and spare parts order management. Krollit has been an official distributor since 2007.
Who is the RBM 25 manual ring bender for
The RBM 25 manual ring bender is recommended for the following professional profiles:
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Metal fabrication shops and workshops: bending sheet metal for manufacturing cabinets, profiles, and casings.
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Machine and metal container construction: creating 90° bends and various angles on standard sheet metal.
Not suitable for: bending pipes or hollow profiles (machine dedicated to flat sheet metal: specific tube bending machines are needed for pipes).
Technical Specifications
| Shaft diameter |
30 mm |
| Upper roller diameter |
98 mm |
| Lower roller diameter |
118 mm |
| Width |
560 mm |
| Depth |
450 mm |
| Height |
1400 mm |
| Weight |
165 kg |
Frequently Asked Questions
What sheet metal thickness can it bend?
See "Bending capacity" in the technical table: typically up to 3-6 mm on mild steel.
Capacity refers to nominal S235 steel. For stainless steel or high-strength steel, the actual capacity may drop to 60-70% of the declared value.
What is the useful length it offers?
The bending length is indicated in the technical table (typically 1,000-3,000 mm).
The useful length determines the maximum size of the workpiece that can be bent in a single pass. For longer pieces, larger machines are required.
What bending angles are possible?
Typically from 0° to 135° with a standard V-punch. Check the technical data sheet.
For 90° bends or specific angles, dedicated punches and dies can be used. Krollit supplies original Bernardo bending tools.
Does the machine have CNC control?
Professional models offer CNC control for automatic angle positioning and back gauge.
CNCs reduce setup times in series production and offer repeatability in the finished product.
What power supply does it require?
Hydraulic bending machines require 400 V three-phase power supply, see "Motor power" for the precise data.
Verify the presence of an adequate three-phase line and size the cables according to the rated power of the hydraulic unit's motor.
