HRA89 Tungsten Carbide Corrugated Paper Cutting Knives

Corrugated Paper Manufacturing Machinery Corrugated Paper Knives

Tungsten carbide slitting knife for corrugated machine are made by high quality virgin tungsten carbide
powder and cobalt powder with powder metallurgy method. Compared with the traditional steel blade,
Our tungsten carbide blades have higher hardness (HRA 89 to 93) and wear resistance (3500 to 4000 Mpa).
In the past 20 years, our knives are widely used in BHS, Fosber, Marquip, Agnati, Mitshubishi, TCY, Justu,
K&H,...Machines. Our high-quality products and factory prices have won the vast domestic and foreign
markets for our distributors.

Our knives can help you with the bellow THREE ASPECTS:

• Original Tungsten Carbide Material——>High Hardness——>Long Working Knife——>Reduce Machine Downtime——>Increase Production Efficiency
• Ultra-Fine Material Particles & Special Sharpening Technology——>Burr-Free Cutting dge——>Burr-Free products——>Good Quality of Cutting Object
• Blank Production Combined with Final Finishing——>Eliminate the Costs of Intermediate Links——>You Get Good Price——>Save Your Money

Corrugated Paper Knives Common Sizes:

Carbide Slitter Knives Display:

Application of Cardboard Cutting Blades:



F.A.Q.

1. The short working life time of corrugated board knives.
Is the grain size of the grinding wheel proper?
Too coarse grain size of grinding wheel: make a short working life time of knives
2. The edges of corrugated boards cut by knives with burr and dent
Please check the cutting edge of your blade. Is the cutting edge keen enough
the corrugated board is too wet ?
3. Break of knife
1) Improper assembly will cause the quick break of blades. Any improper touch of the
blade is strictly prohibited during the working
2) Unstable swing grinding wheels break the knives, please check the bearing of
grinding wheels.
3) Improper touch or strike with other hard things
4) Accident collision of knives.
4. Chips on the cutting edge after the grinding
1) Unstable swing grinding wheels may cause this problem ,even break the knives
2) The strike of hard things may cause the chips on the cutting edge
5.The edge of corrugated board is not straight
Unmatched strength of knives for the corrugated board with high density

Libre is one of the first companies which started development and production of wear-resistant materials. It involves in the research and development of tungsten carbide material, the production of carbide industrial knives and blades and tobacco machinery spare parts. 

Libre has over 20 years' experience of making carbide industrial knvies, specializied in slitting blades. Half of our products are for exportation. We have the ability to cater to requests from customers of different countries. Our "Libre" brand industrial knives take a leading position in both domestic and overseas markets where slitting is required. 

Based in China and located in Chengdu City, we become a factory specialized in carbide slitting blades of comprehensive product category, striving to provide global customers more convenient, faster, stabler services and quality products. 

We keep oursevles at the world-class level by bringing in advanced CNC center and quality checking equipments, hiring high-tech talents to ensure the product quality. We not only develop Chinese market, but also want to have a share of the global market, and provide better and abundant spares and services.