Bernardo lower cutting knife set for stainless steel - HA 220 x 6 is a cutting tool for professional use available from Krollit, official Bernardo distributor since 2007.
- Vendor: Bernardo
- Model: Lower cutting knife set for stainless steel - HA 220 x 6
- Official Bernardo distributor since 2007
- Shipping from Krollit warehouse
Who uses the lower cutting knife set for stainless steel - HA 220 x 6 and for what purpose
Mechanical workshops and tool shops use the lower cutting knife set for stainless steel - HA 220 x 6 for cutting, drilling, or sharpening operations on materials compatible with the tool's geometry.
Its place in the Bernardo range
Bernardo lower cutting knife set for stainless steel - HA 220 x 6 is part of the Bernardo cutting tools 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 selection assistance.
Krollit logistics and support
Shipping within 3-5 working days from Krollit warehouse for spare parts and accessories. Italian-speaking customer support available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who is the lower cutting knife set for stainless steel - HA 220 x 6 for
The lower cutting knife set for stainless steel - HA 220 x 6 is recommended for the following professional profiles:
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Mechanical workshops and tool shops: cutting and sharpening operations on compatible materials.
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Users with compatible machines: replacement part or original tool for the specified machine.
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Out-of-specification materials: verify workable material and tool geometry before use.
Frequently asked questions
What does the lower blade of the HA 220 do?
The lower blade is fixed to the work surface and supports the sheet metal during cutting, opposite the movable upper blade.
Wear is symmetrical with the upper blade, but the lower blade tends to deform under the weight of the sheet metal during intensive processing. Replace both simultaneously to standardize cutting pressure.
What does the HA 220 process?
It is a manual angle notching machine for angles up to 220 x 220 mm. Greater angle processing capacity compared to the HA 200.
Suitable for metal fabrication workshops for series production. Regular knife replacement maintains cutting quality on angle profiles.
Why a specific set for stainless steel?
Stainless steel knives are made of higher quality hardened steel, with a specific heat treatment to withstand the high stresses of stainless steel cutting.
Stainless steel is 1.5-2 times more resistant to cutting than mild steel. Standard knives would wear out quickly. Stainless steel-rated knives have a hardness of 60-65 HRC and resist heating and deformation.
When to replace knives for intensive use?
For continuous use (8 hours/day), a review every 6 months and preventive replacement every 12-18 months is recommended.
Indicators of wear: burred cut, deformation of the sheet metal edge, altered noise during cutting, excessive effort during operation. Keep a spare set in stock.
How is manual replacement performed?
For manual shears and notchers, replacement can be performed by the operator: removal of fastening screws, disassembly of the old knife, assembly of the new one with the correct tightening torque.
Important: observe the tightening torque indicated in the manual (typically 30-60 Nm). Insufficient tightening causes the knife to move, excessive tightening risks cracking it. Krollit provides technical documentation.
