Lithographic Aluminium

/Lithographic Aluminium
Lithographic Aluminium2017-06-25T15:29:31+00:00
Aludium is manufacturer of lithographic aluminium to manufacture offset printing plates.

The cleaning line uses an electrochemical process which provides a perfectly clean, pre-activated surface free of oxides. This produces a better graining response and uses less power.

Lithographic Aluminium

Since the 1960s Aludium has been a leading supplier of lithographic grade aluminium, a tradition which continues with today’s modern printing industry. Our lithographic grades are compatible with advanced plate manufacturing techniques such as computer-to-plate (CTP) and waterless lithography. Our aluminium meets the highest requirements for surface quality, exceptional flatness, and excellent electro-graining response.

Aludium offers two main lithographic alloys, which are available as coils:

  • 1050 for standard printing applications
  • 1020 which offers higher resistance, ideal for long print runs.
    (Alloy developed at Aludium R&D center)

Our Alicante fast-speed finishing mill was completely overhauled in 2012 to guarantee the accurate gauge, shape, flatness and surface quality of our lithographic aluminium. During cold rolling, precision tolerances are maintained using an x-ray gauge control at both entry and exit. Aludium guarantees the uniformity of the final thickness as this property is critical to minimise plate wear and ensure consistent ink transfer.

Aludium’s lithographic grades are provided with a fully cleaned surface which is free of oil, contamination and oxides from the aluminium manufacturing process. The cleaning line uses an electrochemical process which provides a perfectly clean, pre-activated surface free of oxides. This produces a better graining response and uses less power.

Products which are destined to be grained are inspected with an inbuilt, state-of-the-art, artificial vision system. This enables Aludium to certify that each coil has a uniform appearance and is free of defects that would adversely impact the printing process.

Aludium’s manufacturing teams work closely with our Cindal R&D centre to develop the processes and alloys that are used to make our lithographic grades. This expertise has led to the wide acceptance of our lithographic grades by the European printing industry. Cindal R&D regularly works with plate manufacturers to help them define and improve their processes. Why not contact us today to find out how we can help.

Click on the table at the bottom of this page to find out more about the properties of our lithographic aluminium.

COLD ROLLED COILS AND STRIPS for LITHO
Higher resistance, ideal for long print runs
Alloy Temper Flatness
1020 H18 < 2 mm wave height
Thickness (mm) Width (mm) Coil sizes
0,20 – 0,50 – (Tolerances +/- 15μm) 750 – 1520 mm – (Tolerances +/- 0,5) 2 tot 6 kg / mm width
Standard printing applications
Alloy Temper Flatness
1050 H18 < 2 mm wave height
Thickness (mm) Width (mm) Coil sizes
0,14 – 0,50 – (Tolerances +/- 7,5μm) 750 – 1520 mm – (Tolerances +/- 0,5) 2 tot 6 kg / mm width