Anilox Tungsten Carbide Rollers and Sleeves

The B.E.L. Group Patent NUCLEUS ANILOX ROLLER™ and sleeves are applied with Tungsten Carbide Patent LASERNUCOAT™ the coating contains the hardest particles of all carbides 2.500 + or - 500 HV, maintaining reliable mechanical and physical properties.

Anilox rollers are exposed to the rigours of a flexo printing production environment aggressive pigmentation, metallic inks, chemical additives to speed up drying or improving shine, wherever abrasion, corrosion, erosion and doctor blade wear can occur. Tungsten Carbide LASERNUCOAT™ spherical grain powders are an ideal material and can not be surpassed under these conditions. 

Tungsten Carbide hard facing coatings which are diamond ground and super finished prior to Emerald Laser Engraving© creates a high performance printing, coating roller or sleeve saving time and money while increasing service life reducing downtime which can occur when changing worn Anilox rollers.

B.E.L.'s LASER DEPOSITION.   LASERNUCOAT™

Direct Laser Deposition (DLD) is the first state-of-the-art processing system of its kind in the UK designed and built by B.E.L. for the coating of Tungsten Carbide to produce the hardest and most durable Anilox rollers.

Coherent Laser light is generated and high beam energy is focused on the surface of the Anilox roller, absorbed energy penetrates the interior of the substrate and the Tungsten Carbide powder flow merge, creating a melting zone in which solidification takes place and significantly harder build-up deposit with a superior metallurgical bond are produced.

The process using a coaxial powder-injection nozzle that propels the tungsten carbide powder, fed with a carrier gas directly into the interaction zone (melt pool) of the laser beam, resulting in low heat absorption of the substrate and minimal distortion. Uniform uninterrupted distribution of the coating guarantees high efficiency of Tungsten Carbide powder deposits for long-term operations.

The present machines system uses a laser deposition process that ensure consistent repeatability in the advanced accurate Laser-generated fusing of Tungsten carbide deposits, in a controlled and accurate manner to increase hardness of the coating, the combination of spherical Tungsten Carbide fused within a matrix of nickel are blended together the round particles allow stress to pass smoothly through the deposit ensuring a consistently harder coating.

The structure is characterized as completely dense and defect free, deep deposition Into the substrate and particles of up to 2,500 + or - 500 HV hardness, zero porosity with a strong metallurgical bonding between the Tungsten Carbide layer and the base material that is corrosion resistant and provides a greatly extended life and performance of the Anilox roller.

Direct Laser Deposition surface treatments is unique for Anilox roller preparation it is the results that makes DLD so special ensuring dense structures, the overall hardness and porosity are far superior to any other process and has proven to be extremely cost effective.