Tannery machines
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Jumbostar SR

Roller coating machine for impregnation, pigment coating, fat liquoring and application of foams on bovine hides

Jumbostar SRJUMBOSTAR SR is an innovative roller finishing machine which can spread in REVERSE rotation from 1 to 40 grams per square foot of products for impregnation, pigment coating, fat liquoring and application of foams on splits, corrected and full-grain leathers for upholstery, automotive, garment etc.

Not only does it reduce chemical consumption by 60% compared to traditional spray machines, but it obtains better results in terms of penetration and fixing thanks to the mechanical action of the engraved rollers.

JUMBOSTAR SR offers production speeds of up to 20 m/min, allows high productivity while ensuring top quality standards, low energy consumption, reduced maintenance, extremely simple use and quick article changes.

The innovative technical features of JUMBOSTAR SR allow the following to be finished for the first time:
  • REVERSE, whole hides for upholstery and clothng with elevated softness and evident advantages of coverage and considerable reduction in production times;
  • REVERSE, continuous "stucco" filling of splits and whole hides, side leathers for footwear garment and leathergoods;
  • SYNCHRO, whole hides with application of light coating, tipping effects and design printing.

Numerous are the innovations featured by JUMBOSTAR SR:
  • While the conveyor belt maintains its horizontal position, its geometry may vary automatically according to the type of finishing and of the leather being processed.
  • The geometry of the outlet side can be changed to four different configurations. The belt is automatically repositioned for this variation and for SYNCHRO / REVERSE process changes.
  • The speed of the engraved roller can be electronically adjusted up to a maximum of 100 m/min and conveyor belt up to a maximum of 20 m/min.
  • The doctor blade is positioned on a rigid support mounted on bearings ensuring precise and smooth movement. The unit is pneumatically controlled to automatically compensate the wear and tear of the blade.
  • The working thickness varies according to a centesimal scale with touch screen and automatic thickness reset controlled by PLC. In addition, the special geometry of the belt makes up for any difference in the thickness of the leather so that coating remains steady and even.
  • The stainless steel washing tank is equipped with quick pneumatic exclusion system: this solution is used either to lower the tank and prevent the belt brush and rubber cleaning blade from touching the belt at the end of the working cycle or whenever the coating process should be carried out with washing system off.
  • In JUMBOSTAR SR the conveyor belt is fitted on a special rack structure easy to remove from the front side of the machine. This specific configuration allows the belt to be quickly replaced by pulling it out sideway without having to take out the driving and idle cylinders and moving the machine away from its working position. A special equipment is supplied with the machine to make this operation as simple as possible.