Esa Rubber H

High strength coating for printing impression rollers with electrostatic assist (black)

  • E.S.A. System
    E.S.A. System
  • hardness range 70-90
    hardness range 70-90
  • max temp 160°C
    max temp 160°C
  • Speedwell System
    Speedwell System

Elastomer to coat printing impression rollers for ESA printing. This elastomer stands out due to its high strength against abrasion and printing pressure.

Rubber-coated roller with steel core and/or Speedwell sleeve with conductive fibreglass conical base. Esa Rubber H coating ground to measurement.

Colour
Black
Rubber-coated roller - Min/Max diameter
35 - 550 [mm] // 1.373 - 21.569"
Rubber-coated roller - Min/Max length including pins
150 - 5.000 [mm] // 5.882 - 196.078"
Speedwell Sleeve - Min/Max diameter
80 - 450 [mm] // 3.137 - 17.647"
Speedwell Sleeve - Min/Max length - Tolerance UNI:ISO 2768T1m
350 - 3500 [mm] // 13.725" - 137.255"
Coating thickness
10 - 35 [mm] // 0.392 - 1.373"
Min coating thickness to guarantee after grinding
8 [mm] // 0.315" - Grinding value at a minimum must be supplied by the client based on the possible adjustment of the printing press
Surface hardness - Tolerance +/-3 Shore A
70 - 90 Shore A
Maximum resistance to pressure
20 [Kg/cm]
Electrical resistance
Rollers and Speedwell Sleeves are designed and built according to technical specifications released by the manufacturers of ESA systems and the type of application of the electrostatic charge (Top Loading - Side Loading - Direct Charge)
Compressed air for sleeve assembly
12 - 20 [bar] // 174 - 290 PSI Minimum capacity: 700 [l//min] with air input having a free passage with D => 8[mm]
Maximum temperature resistance
150 °C / 302 °F
Working tolerance
External finishing with precision grinding (Ra=0.8) with T.I.R. < 0.03 mm] when measured on a mandrel with T.I.R. <= 0.005 [mm]
Resistance to chemicals
Alcohol - Acetates max 30% - MEK max 20% - Water - Ozone