Viton

  • hardness range 70-85
    hardness range 70-85
  • max temp 200°C
    max temp 200°C
  • Speedwell System
    Speedwell System

Fluoro-elastomer coating which resists contact with aromatic solvents (Toluene, Xylene) for specific applications characterised by high strength against temperatures and mechanical loads. Available in the following configurations: coated steel roller, Speedwell sleeve, in an anti-static or insulated version. Maximum temperature resistance 200 °C (392 °F).

Rubber-coated roller with steel core and/or Speedwell sleeve with conductive or non-conductive fibreglass conical base. Viton 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
5 - 35 [mm] // 0.197" - 1.373"
Min coating thickness to guarantee after grinding
10 [mm] // 0.394" - 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 - 85 Shore A
Maximum resistance to pressure
25 [Kg/cm]
Electrical resistance
< 1 MOhm
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
200 °C - 392 °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
Gasolines - Alcohol - Toluene/ Xylene - Water - Ozone