TANNERY SECTOR

ROLLERS

 

Chromium plating of rollers for different fields of industry, in particular for through-feed presses used for the ironing and polishing of leathers.
Rollers’ hard chrome coating has a variable thickness from 0,1 mm to 0,2 mm and 70 HRC hardness approximately, while the final roughness Ra = 0,001 micron approx.


Superfinished surfaces, mirror polished, are obtained on the chrome layer through special and sophisticated processes permitting to reach an approximate surface roughness Ra = 0,001 micron.


These types of surface’s finishing give the possibility to get the maximum shine on leathers, highlighting their quality.


The processes of matt, sandblasting and microengraving made on the surfaces, at different roughness and obtained through exclusive processes, have the purpose to hide the existing defects on leather’s surface, reaching the best evenness increasing the leather quality as much as possible.


All these solutions are offering evident and considerable advantages if compared with the traditional haircell embossing, avoiding repeating marks and permitting to remake the sandblasted or microcell process on damaged rollers or the transforming from a type to another one independently from the roller’s body diameter.

 

PLATES

 

Construction of plates of any size, in monobloc piece 10 mm thickness, obtained from carbon steel sheets of first quality, for hydraulic vertical presses for plating and polishing leathers.
As for the rollers, the chrome coating has a thickness from 0,1 mm to 0,2 mm and 70 HRC hardness approximately, the final roughness Ra = 0,02 micron is slightly higher than that of the rollers.


The processes of matt, sand blasting and microengraving on the surfaces, at different roughness, are obtained with the same processes as for the rollers and also them have a large employment in the tanning field during the intermediate and final step of the finishing of the leathers.


The initials CR-SF and the types of surfaces are the same of the rollers.

INITIALS AND TYPOLOGY OF SURFACES

 

CR-SF 00 BRIGHT MIRROR SUPERFINISHED PLATE

These are smooth chromium-plated surfaces, bright mirror superfinished, used in the ironing of the leathers, to obtain a shiny and bright result.


SILVER PLATE MG 60 (NEW)

The new SILVER plate is an ironing plate with a very light engraving. It is used to iron the leather but in a more natural way, leaving a natural, soft and velvet effect.


SANDBLASTED PLATES CR.SF-20 S1 / CR.SF-20 S2 / CR.SF-30

These are matt sandblasted surfaces with a light engraving to decrease (CR.SF-20 S1 big – CR.SF-20 S2 medium – CR.SF-30 fine) covered with a thickness of 0.05 mm chrome. They are particularly suitable in the intermediate step of the finish to hide the defects of the leathers.
Excellent results are obtained on greased leathers.


MICROCELL PLATES CR.SF-150 / CR-SF 155 (NEW) / CR.SF-170 / CR.SF-190

They are a compromise between the “sandblasted” and the “hair cell” and not being a design, they do not transfer the characteristic repetition effect on the leather.
Particularly suitable in the intermediate step of the finishing for the correction and homogeneity of the leather surfaces.
The most popular and efficient type of microcell is the CR.SF-150 called “SPLENDOR”, very similar to the haircell, at which is often combined, in order to reduce and often eliminate the problem of the optical reticular effect, enhancing the quality of the leathers treated.


MICROCELL PLATES CR.SF-120 / CR.SF 180

The superficial engraving of these three types of microcell, in difference to the others, is directly obtained on the chromium plating layer previously deposited.
The result is a pleasant bright appearance particularly suitable for the final finishing phase.


REGENERATION OF EMBOSSING PLATES

A special treatment of ceramization, nickel plating and chromium plating is performed on both bimetallic copper plates and on monobloc engraved and photoengraved plates.

  • Before-
    After-
    Prima Dopo