
Product Specification Table
| # | Dimensions | Mounting | Steel | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Outer Ø(mm) | Inner Ø(mm) | Thickness(mm) | Edge Th.(mm) | Free-Running | Self-Locking | O1 | D2 | HSS |
| 1 | 46 | 25 | 10 | 8 | |||||
| 2 | 50 | 25 | 10 | 8 | |||||
| 3 | 60 | 30 | 10 | 8 | |||||
| 4 | 60 | 40 | 5 | 3.5 | |||||
| 5 | 60 | 40 | 10 | 8 | |||||
| 6 | 77 | 45 | 10 | 8 | |||||
| 7 | 77 | 45 | 15 | 13 | |||||
| 8 | 77 | 60 | 5 | 3.5 | |||||
| 9 | 77 | 60 | 10 | 8.5 | |||||
| 10 | 77 | 60 | 10 | 8 | |||||
| 11 | 80 | 60 | 5 | 3.5 | |||||
| 12 | 80 | 60 | 10 | 8.5 | |||||
| 13 | 80 | 60 | 10 | 8 | |||||
| 14 | 80 | 60 | 10 | 7.5 | |||||
| 15 | 82 | 60 | 10 | 8 | |||||
| 16 | 90 | 60 | 10 | 8 | |||||
| 17 | 90 | 60 | 15 | 12.5 | |||||
| 18 | 105 | 60 | 15 | 12.5 | |||||
| 19 | 105 | 60 | 20 | 17.5 | |||||
| 20 | 105 | 80 | 10 | 7.5 | |||||
| 21 | 105 | 80 | 10 | 8 | |||||
| 22 | 105 | 80 | 15 | 12.5 | |||||
| 23 | 105 | 80 | 20 | 17.5 | |||||
| 24 | 105 | 90 | 5 | 3.5 | |||||
| 25 | 105 | 90 | 10 | 8 | |||||
| 26 | 105 | 90 | 19 | 17 | |||||
| 27 | 125 | 100 | 18 | 16 | |||||
| 28 | 150 | 100 | 6 | ||||||
| 29 | 150 | 100 | 10 | 8 | |||||
| 30 | 150 | 120 | 10 | 8 | |||||
| 31 | 150 | 120 | 15 | 13 | |||||
Tabloda belirtilen standart ölçüler dışında özel ölçü üretimi yapılmaktadır. Detaylı bilgi için iletişime geçiniz.
Bottom Slitter Knives — Circular Slitting Lower Blade
O1 & D2 Tool Steel — Free-Running & Self-Locking Types
Bottom slitter knives manufactured from O1 and D2 tool steel. Outer diameter range from 46mm to 150mm. Available in free-running and self-locking mounting types. Used in paper, film, foil and packaging slitter rewinder machines.
- O1, D2 and HSS steel options
- Free-running and self-locking mounting
- 46-150mm outer diameter range
- 4 critical dimension parameters
Technical Specifications
Why This Product?
Two Mounting Types
Free-running and self-locking for application-specific selection
O1 / D2 / HSS Steel
Three steel grades for every budget and performance need
31 Standard Sizes
Wide OD range from 46mm to 150mm
Custom Manufacturing
Production for non-standard sizes and shaft diameters
Applications
Detailed Information
Bottom knives work in pairs with top dish knives in circular slitting systems, operating on the shear cut principle. Two fundamental mounting types based on shaft installation:
Mounting Types
- Free-Running: Freely rotating type on the shaft. Rotated by the material. Preferred for low-torque and thin material applications.
- Self-Locking: Locked mounting on the shaft. Rotates together with the shaft. Required for high-torque and thick material applications.
Steel Types
- O1 Tool Steel: Oil-hardening cold work steel. Optimal cost-performance balance for standard slitting applications.
- D2 Tool Steel: High-chromium cold work steel. Superior performance for abrasive materials and long production runs.
- HSS (High Speed Steel): Maximum wear resistance and thermal stability for special applications.
Dimensioning
Bottom knives have four critical measurements:
- "A" — Outer Diameter: From 46mm to 150mm
- "B" — Inner Diameter: From 25mm to 120mm based on shaft diameter
- "Th" — Total Thickness: From 5mm to 20mm
- "C" — Cutting Edge Thickness: From 3.5mm to 17.5mm
Applications
- Paper and cardboard slitting (slitter rewinder)
- Plastic film and foil slitting
- Packaging material cutting
- Converting lines
- Corrugated board slitting
NOTE: Different sizes are available beyond the listed standard products. Please contact us for custom size requests.



