Dekeer slitting lower blades are heavy-duty industrial circular knives designed for slitting machines, rubber processing, metal sheet cutting, plastic film converting, and flexible packaging production. Made from premium tool steels including 9CrSi, Cr12MoV, SKD-11, W18Cr4V, and hardened steel, these lower blades deliver exceptional wear resistance, high hardness, and stable cutting performance under continuous, high-load working conditions.
Designed as the stationary mating partner to upper slitting knives, they ensure precise, burr-free cuts on rubber sheets, metal foils, plastic films, and composite materials. With strict dimensional tolerances and precision grinding, our lower slitting blades improve cut quality, reduce material waste, and extend the service life of your entire slitting system.
Key Advantages
Premium Tool Steel Materials Made from 9CrSi, Cr12MoV, SKD-11, W18Cr4V, and other high-grade steels for superior hardness and wear resistance. | Precision Ground Dimensions CNC precision machining ensures tight tolerances, perfect concentricity, and smooth mating with upper slitting knives. |
High Hardness & Durability Professional heat treatment delivers excellent hardness, maintaining sharpness and reducing frequent blade changes. | Stable & Low Vibration Designed for smooth, stable operation in continuous slitting lines, minimizing machine vibration and improving cut consistency. |
Full Customization Available Custom outer diameter, inner hole, thickness, and mounting holes to match your specific slitting machine model. | OEM & ODM Support Custom manufacturing based on customer drawings, samples, and equipment requirements. |
Product Parameters
| Brand Name | Dekeer |
| Product Name | Sitting Lower Blade / Slitting Machine Lower Knife |
| Application | Rubber, Metal, Plastic, Film, Paper, Packaging Slitting Machines |
| Material | 9CrSi, Cr12MoV, SKD-11, W18Cr4V, HSS, Hardened Steel |
| Hardness | HRC 58-65 (Customizable) |
| Type | Slitting Lower Knife / Stationary Circular Blade |
| Service | OEM ODM Customization, Drawing & Sample Processing |
Available Dimensions
| Outer Diameter | Inner Hole | Thickness |
| 50 mm | 25 mm | 8/10 mm |
| 60 mm | 35 mm | 10/12 mm |
| 70 mm | 28 mm | 12/14 mm |
| 70 mm | 38 mm | 3/5 mm |
| 70 mm | 45 mm | 3/5 mm |
| 70 mm | 45 mm | 8/10 mm |
| 70 mm | 45 mm | 20 mm |
| 80 mm | 50 mm | 8/10 mm |
| 80 mm | 50 mm | 20 mm |
| 80 mm | 55 mm | 3/5 mm |
| 80 mm | 60 mm | 8/10 mm |
| 80 mm | 60 mm | 20 mm |
| 90 mm | 60 mm | 3/5 mm |
| 90 mm | 60 mm | 8/10 mm |
| 90 mm | 60 mm | 20 mm |
| 90 mm | 65 mm | 3/5 mm |
| 90 mm | 65 mm | 8/10 mm |
| 90 mm | 65 mm | 20 mm |
| 100 mm | 70 mm | 8/10 mm |
| 100 mm | 70 mm | 20 mm |
| 105 mm | 80 mm | 8/10 mm |
| 105 mm | 80 mm | 20 mm |
| 105 mm | 80 mm | 30 mm |
| 108 mm | 80 mm | 8/10 mm |
| 108 mm | 80 mm | 20 mm |
| 108 mm | 80 mm | 30 mm |
