QUALITY CATEGORY A & CATEGORY B FACTORY

Libre has been supplying tungsten carbide circular blades to cigar industries in the world. And in the first quarter of 2022, Libre successfully made contact with a few cigar manufacturers in central America, taking about long-term cooperation on long-lasting carbide blades.   "Premium hand-rolled cigars are often associated with Caribbean origins, but Nicara-gua and Honduras certainly are changing that notion fast." according to Asia Tobacco Magazine.   Ask consumers in Asia about their favorite high-end, hand-rolled cigar origins and chances are quite high that Cuba and the Dominican Republic are mentioned right off the cuff. The situation is quite different in Europe and especially the United States, the latter being the world’s most important and largest premium cigar market. There, an amazing shift has occurred in recent years. While Cuban and Dominican Republic cigars firmly retain high rankings on the desirability scale, an astonishing two thirds of all US imports are now comprised of Nicaraguan products. But then again, even some Asian countries such as China, Malaysia, and even Vietnam now show growing inter-est in Central American cigars in recent years. Things are definitely on the right track.   Libre's managing team has high expectations about the potentials of the central Amercia market and is looking forward to offering its technically mature cigar cutting circular blade to this hopeful land, lending a hand to the arising star of centra America premium cigar manufacturers.   Available sizes: 140x46x0.8mm 140x46x0.5mm, be it single bevel or double bevel

Paper straw cutting circular knives are used on paper straw production machinery. Regulations restricting single-use plastics have been issued by many countries. With the booming of biodegradable paper drink straws, the need for paper straw making machine and paper straw cutting blades are increasing rapidly. In close cooperation with paper straw machinery manufacturers and paper straw production factories, we better understand the particular characteristics paper straw cutting blades should have, and keep in stock the most commonly used sizes.     Hauni Straw Maker-The world's fastest paper straw maker   The HSM (Hauni Straw Maker) produces visually appealing paper straws at a hitherto unparalleled speed of up to 300 m/min. Its high level of automation ensures above-average quality and an efficiency of more than 90 percent (OEE). At a speed of 300 m per minute, this means you can produce up to 1.8 million straws @ 200mm length during three-shift operation.   Lowest production cost per straw   Paper and glue consumption have been optimized by up to 50% thanks to the linear two-layer production process. Automatic paper feed as well as other innovative automation standards also mean that the machine only requires one operator. One person can even operate two lines.   Technology proven worldwide   For five years now, 30 machines similar to the HSM have been used by the international tobacco industry to produce special filters. The technology, already established in the marketplace and tested under real conditions, has now been adapted to produce high-quality paper straws, thereby offering an expertise-based, robust solution for the future.   Technical Benefits (Maker) Up to 300 meters/minute for fastest paper straw making Up to 90% of efficiency Up to 50% less glue No need of additional slip additives (vegetable oils, etc.) and no additional heat treatment to cure the glue High level of automatization: less man power needed Automatic splice detection & rejection 1 type of paper needed: online cutting to get 2 layers Diameter/ length change in 8h/1h 24/7 service worldwide

The coating tool is prepared by coating a thin layer of refractory metal or nonmetal compound with good wear resistance (also can be coated on ultra-hard material blades such as ceramic, diamond and cubic boron nitride) on the surface of tungsten carbide or high speed steel (HSS) substrate with good strength and toughness by vapor deposition method. The coating acts as a chemical and thermal barrier, reducing the diffusion and chemical reaction between the tool and the workpiece, thereby reducing the wear of the matrix. Coating tool has high surface hardness, good wear resistance, stable chemical properties, heat resistance and oxidation resistance, small friction coefficient and low thermal conductivity characteristics, cutting than uncoated tool life increased 3~5 times more than, improve the cutting speed of 20%~70%, improve processing accuracy 0.5~1 level, reduce tool consumption cost 20%~50%.   current situation Coated cutting tools have become the symbol of modern cutting tools, in the tool used in more than 50%. Various cutting tools used in machining, including turning tool, boring tool, drill, reamer, broach, tap, thread comb, rolling head, milling cutter, forming tool, gear hob and gear shaper, etc., can be coated to improve their performance.   coating material The coating material must have high hardness, good wear resistance, stable chemical properties, no chemical reaction with the workpiece material, heat resistance and oxidation resistance, low friction coefficient, and solid adhesion with the matrix and other requirements. Obviously, a single coating material is difficult to meet the above requirements. Therefore, the hard coating materials have been only coated with a single TiC, TiN, Al2O3 at first, into the development of thick film, composite and multiple coatings in a new stage. The newly developed TiCN, TiAlN, TiAlN multilayer, ultra-thin, ultra-multilayer coatings are combined with TiC, TiN, Al2O3 and other coatings, and the new anti-plastic deformation matrix has made great progress in improving the toughness of coatings, the bonding strength between coatings and substrates, and improving the wear resistance of coatings. The technology of coating diamond film on carbide matrix has been broken through and the performance of cutting tool has been improved comprehensively.   TiN is the most mature and widely used hard coating material, but the bonding strength between TiN and the matrix is not as good as TiC coating, the coating is easy to peel off, and the hardness is not as high as TiC, and the film is easy to be oxidized and ablated when the cutting temperature is higher. TiC coating has high hardness and wear resistance, oxidation resistance, but its brittle, impact resistance. TiCN has the advantages of TiC and TiN. It can control TiCN properties by continuously changing the composition of C and N during the coating process, and form a multi-layer structure of different components, which can reduce the internal stress of the coating, improve the toughness, increase the thickness of the coating, prevent the expansion of cracks, and reduce the edge breaking. TiCN based coating is suitable for processing ordinary steel, alloy steel, stainless steel and wear-resistant cast iron, and the material removal rate can be increased by 2~3 times.    

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

We have the market frontier information which can help our parters know more product informations like which are the mostly required parts. We keep upgrading and modifying the parts. We use our leading production capability in China to cater to customers' ideas and requests, and in return we achinve the changing and modifying of more products.

Performance-Improved Series Protos making lines Tipping drum with cutting knife separated from suction plates, knives being separated from suction plates prolongs the working life to 4 times longer!    For most suction drums (with cutting knives) in the market, the knives are combined with suction plates. In the production process, you need dismantle the whole out smoothly. The drum need to be repaired or just throw away. Normally, the working life of this kind of drum is just around 4500 hours.    Tipping drum with cutting knives separated from suction plates adopted a new design. As showed in the picture, the cutting knives are not combined with suction plates anymore, they are separated and working side by side. (the cutting knives now are reversible and have four cutting edges) The changed design makes the suction plate work under a sole purpose (absorb the tipping paper), and be no longer easy to break. The reversible cutting knife could be used as four brand new knives by turning one side up after another when the working side gets blunt or breaks. So reversible cutting knife has a working life four times longer (as long as appx. 18,000 hours) than the normal one-edge knife, and also owns a more precise and reasonable cutting angle. And as a result, the spare part cost is reduced and the mentainance period is extended.    Easy to Mentain and Stable in Performance For the new kind of drum, you do not have to tear apart the whole drum when you need replace the blunt knives, and you just need turn up another side of the cutting edge and then relocate the knife on the drum. It helps shorten the stop-time. How good you mount the knife onto the drum is decided by the precision of the drum and the knife, and you do not have to adjust with extremely special care or use any special tool to finish.    On the new drum, the suction plate is made of composite ceramic matererial, which largely reduces the weight of the drum, effectively lightens the load on the gear and prolong the working life of it, thus the gear can work precisely.   

      Because of the high hardness, wear resistance and corrosin resistance, the tungsten carbide cutting and slitting knives what made by power metallurgic method are widely used for the cutting of nonferrous metal ,paper chemical fiber graphite and plastic       The components of tungsten carbide are WC (hard phaes) and cobalt (binder phase) The physical properties of alloy depend on the grain size of WC and the percentage of hard phase and binder phase ,we have dozens of material grades for your different applications.