Slitter blades, cross-cutting knives and counter knives ground to the tolerance your machine was set up with — reproduced from a drawing, a CAD file or a worn part.
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Dimensions, steel grade and hardness are set per order. If a part falls outside these families, send the drawing anyway — the process is the same.
Dimensions, steel grade and hardness are set per order. If a part falls outside these families, send the drawing anyway.
All trademarks belong to their owners. A brand listed here indicates that our parts are compatible with that manufacturer’s machines; it does not imply partnership or authorisation.
All trademarks belong to their owners. A brand listed here indicates compatibility with that manufacturer’s machines; it does not imply partnership or authorisation.
Steellogy manufactures industrial knives for the paper and packaging industry, including guillotine blades for sheet cutting, circular slitter knives for web converting, sheeter blades and counter knives. Every blade is produced in our own facility in Poland, with material and hardness agreed for the order.
Paper guillotine blades are the workhorse of sheet cutting in print finishing, packaging and paper converting: long, straight industrial knives cutting through stacks of paper, cardboard and board against a cutting stick. Steellogy produces guillotine blades in HSS (High Speed Steel) and tungsten-carbide-tipped versions; length, height, thickness and hole pattern are manufactured to the buyer-approved drawing, because guillotine knives are model-specific.
Our paper guillotine blades are compatible with guillotines from Polar, Wohlenberg and Perfecta, among others. Hardness is selected per steel grade and application and stated in the order confirmation. For a broader overview of blade types and selection criteria, see our complete paper cutting knife guide.
Circular slitter knives slit continuous webs into narrower widths on slitter-rewinders, running as paired top and bottom knives in a rotating shear cut. Knife condition directly affects slit-edge quality and dust generation — knife wear shows up as lint, ragged edges and web breaks before the knife fails outright.
Steellogy manufactures industrial slitter knives from D2 tool steel, HSS M2 and tungsten carbide; carbide is preferred for abrasive stocks and long runs. Our slitter blades are compatible with converting lines from manufacturers including Kampf, Goebel IMS, Valmet, Andritz and BW Papersystems. Diameter, bore and edge profile are ground to the drawing; the knife must also match the holder and overlap setup, which is why we ask for the machine model with the enquiry.
Sheeter knives cut the moving web crosswise into sheets with a rotary knife working against a bedknife; rewinder and trim blades handle edge and trim positions. Consistent cut quality at line speed depends on blade geometry, steel grade and surface finish — and on the match between the rotary knife and its bedknife, so where possible we quote them as a pair. Compatible with sheeters and rewinders from manufacturers including Pasaban, Valmet and Andritz.
For circular slitter and score knives, D2 tool steel is the common grade; HSS M2 is used where edge retention on coated and abrasive stocks matters; tungsten-carbide-tipped blades are the usual choice for the most abrasive webs and the longest runs, at higher initial cost. Published OEM hardness values for slitter and log-saw blades do not exist — delivered hardness is agreed per order and stated in the order confirmation.
For guillotine knives, material families offered across the industry range from HSS with 18% tungsten for contaminated stock and board, through Cr-W-Mo tool steels, to carbide-tipped edges for clean stock and maximum precision. Send your substrate and run length with the enquiry and we confirm the grade on the quotation.
Steellogy manufactures industrial knives for the paper industry in Europe. Material and hardness are agreed for each order and stated in the quotation. If material-documentation or hardness-measurement requirements are included in the RFQ, their availability and scope are confirmed in the quotation. For context on OEM and aftermarket sourcing decisions, see our analysis of OEM and aftermarket industrial knives.
The quotation also states the lead time, allowing the offer to be compared against the same technical requirements. Contact Steellogy for guillotine blades, slitter knives, rewinder blades or custom paper-cutting parts.
Each of these three sourcing situations calls for a different qualification process. Choose the route that fits your requirement.
When the part is already defined, reliance on one supplier is a risk to continuity of supply rather than a technical issue. The aim is to have an independent manufacturer supply the part to the same definition.
See how second-source qualification worksSend a second-source RFQWhen the machine builder no longer supplies the part, the starting point is what remains available: a partial drawing, a part number with its revision, or the worn part itself.
See how a legacy part is assessedSend a legacy-part RFQOnce a part has been qualified, the economics depend on repeatability: the part can be reordered with the same approved revision, material and inspection scope, without repeating the qualification process.
See how repeat orders are handledSend a repeat-part RFQBatch documentation, company data and commercial terms for supplier qualification are summarised on the Supplier information page.