China Suppliers Slitting Round Blade Knife | High-Precision Factory Solutions for Steel and Metal Industries
Product Introduction
We can now guarantee that the thickness tolerance of ± 0.0005mm. For a certain inner circle, the tolerance can reach H3. All high-precision products are tested in a constant temperature room. With the continuous improvement of machining precision of sheet metal, we have developed ultra high precision cutting tools, whose accuracy has so far been matched by precision milling tools.
± 0.001mm thickness tolerance and Ra 0.1µm surface roughness are our routine standards. Using our know-how, we also meet customers' higher tolerances for thickness, parallelism, flatness, outer and inner rings.
We can also attach a rubber sleeve to the outer diameter according to the customer's request, so that it can be exported smoothly with the knife to prevent scratches. The rubber sleeve is made of natural primary rubber such as green amine and acrylonitrile butadiene rubber.
| Parameter | Details |
|---|---|
| Blade Sleeve Material | S45C, S50C, 65Mn (S45C most commonly used) |
| Thickness Range | 0.9 mm ~ 100 mm |
| Hardness | 47 ± 2 HRC |
| Thickness Tolerance | Within 0.003 mm/mt |
| Manufacturing Process | Forging → Machining → Heat Treatment → Leveling Grinding |
| Purpose | Adjust width & horizontal gap between dividing round knife, upper knife and lower knife |
In order to reduce weight, we can also produce aluminum spacers using AL7075 material. The thickness tolerance is also controlled within 0.003 mm/mt.







