The Bernardo HM 25 is a mortising machine for professional use, with a capacity of 76 mm, a 0.75 kW (1.0 HP) motor, and a weight of 100 kg. Krollit, official Bernardo distributor since 2007.
- Max chisel size: 25.4 mm
- Spindle stroke: 230 mm
- Max mortising depth: 76 mm
- Max workpiece height: 200 mm
- Max workpiece width: 145 mm
- Table size: 400 x 150 mm
Who uses the HM 25 and for what
Professional carpenters and furniture manufacturers use the HM 25 to create mortises for tenon joints on doors, windows, and furniture, with precise joints on rails and stiles.
Its place in the Bernardo range
The Bernardo HM 25 is part of the Bernardo mortising 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 working days (7 days for Southern Italy). For spare parts and accessories, shipping in 3-5 working days from Krollit warehouse. Italian customer support available for technical documentation, product sheets, and spare parts order management. Krollit has been an official distributor since 2007.
Who is the HM 25 for
The HM 25 is recommended for the following professional profiles:
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Professional carpenters and furniture manufacturers: creation of mortises for tenon joints on doors, windows, and furniture.
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Window and door manufacturers: processing of rails and stiles with precise joints.
Not suitable for: mortises on metal or plastic (machine dedicated to wood: different processes are needed for other materials).
Working capacity
| Spindle stroke |
230 mm |
| Max mortising depth |
76 mm |
| Max workpiece width |
145 mm |
| Table travel (x/y) |
175 / 150 mm |
Table, dimensions and geometry
| Max chisel size |
25.4 mm |
| Max workpiece height |
200 mm |
| Table size |
400 x 150 mm |
| Machine dimensions (LxWxH) |
430 x 610 x 1100 mm* |
| Weight |
100 kg |
Other specifications
| Rotational speed |
2850 rpm |
| Motor power |
0.75 kW (1.0 HP) |
| Voltage |
230 V |
Frequently asked questions
What can the HM 25 process?
It creates rectangular mortises for tenon-mortise joints on solid wood, plywood, and derived panels.
Bernardo HM square chisel mortising machines allow direct creation of right-angle mortises, without the need for manual finishing. Typical applications: door and window frames, chairs, furniture, and structural assemblies.
What chisel sizes does it support?
Typically chisels from 6 to 25 mm wide. Check the technical table for "drilling capacity" or "mortise capacity".
Bernardo HM chisels are dedicated accessories with cylindrical shank and hardened hollow tip. Krollit supplies original spare parts compatible with the HM 12, HM 25 and HM 30 series.
Is the head tiltable or rotatable?
Depends on the model: HM 25 has a 180° swivel head, HM 25 TOP has a ±22.5° left/right tiltable head.
The swivel head allows working on large workpieces such as doors and frames from the rear. The tiltable head allows angled mortises for mitered assemblies.
What power supply does it require?
HM 12, HM 25, and HM 30 models are equipped with a 0.75 kW single-phase 230 V motor. See "Voltage" in the technical table.
Single-phase power supply makes these mortising machines usable even in workshops without a three-phase line. However, the machine requires dedicated differential protection.
How much does the machine weigh?
See "Weight" in the technical table. Typically 100 kg (HM 25) or 110 kg (HM 25 TOP).
The high cast iron mass provides rigidity during mortising, reducing vibrations and improving precision. For handling and installation, a hydraulic trolley or the help of a second operator is recommended.
