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Last updated:
20-10-2014 10:03
 

Silicone Roller-Sleeves for Corona Pretreaters 

Silicone rubber offers a.o. an excellent highvoltage resistance, a large flexibility, a long lifetime at high temperatures and very good anti-adhesive / non-stick characteristics. 

These properties are rightly exploited as an insulation, in the form of tubes or sleeves, on corona pretreatment rollers. 

(Datasheet for Corona Sleeves at end of this page)

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Corona pretreatment station (Sketch)

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List of sleeve dimensions

SILICONE SLEEVES FOR CORONA

DIAMETER

RELAXED DIMENSIONS

ROLLER Ø

SLEEVE ID

THICKNESS

2 inch

45,00 mm

3,00 mm

2½ inch

59,00 mm

3,00 mm

3 inch

70,00 mm

2,50 mm

3 inch

70,00 mm

3,00 mm

3 inch

72,00 mm

3,00 mm

3 inch

74,00 mm

3,00 mm

3½ inch

84,00 mm

2,40 mm

4 inch

92,00 mm

2,20 mm

4 inch

93,00 mm

2,50 mm

4 inch

94,00 mm

3,00 mm

4 inch

95,00 mm

2,00 mm

4 inch

95,00 mm

2,50 mm

4½ inch

110,0 mm

2,00 mm

4½ inch

110,0 mm

3,00 mm

4½ inch

110,0 mm

3,20 mm

4½ inch

112,0 mm

2,20 mm

6 inch

140,0 mm

2,20 mm

6 inch

140,0 mm

2,40 mm

6 inch

140,0 mm

2,70 mm

6 inch

140,0 mm

3,00 mm

6 inch

144,0 mm

3,00 mm

8 inch

190,0 mm

2,00 mm

8 inch

190,0 mm

2,60 mm

8 inch

190,0 mm

3,00 mm

8 inch

183,0 mm

3,20 mm

8 inch

187,0 mm

3,50 mm

10 inch

240,0 mm

3,20 mm

10 inch

240,0 mm

3,60 mm


We offer you extruded silicone tubes, up to diameter = 240mm, fitted to the individual equipments, with close tolerances both on diameter and wallthickness. Our roller-sleeves present a high concentricity and circularity, which assure a stable operation during the surface-treatment. 

Silicone Rubber Properties: 

  • Highvoltage-resistance: > 20 kV/mm
  • Volume resistivity: ~ 1015 Ohm.cm
  • Dielectric constant (epsilon): ~ 3,0
  • Temperature resistance: ~ -60oC to +200oC
  • Ozone resistance: High

     

    We are pleased to offer you our many years experience in the extrusion of large-dimension silicone rubber tubes

      


     

    Datasheet

     Silicone Sleeve – Corona Equipment

     

     ItemNo: 2000000000 - Series 

  •  

  •  Description: Silicone Sleeve for Corona Pretreatment Systems 

     Tolerances: ISO 3302E2

     Colour: Orange

     Hardness: 70 +-5 Shore A 

     Talcum-Powdering: Inner and outer surface

     Weight: 

     Postcure: NPC – Non-Post-Cure

     Length: 10 or 14 Meters (Dependant on Sleeve-dimensions)

     Packing: 

     Per. Carton: 

     Marking: 

     Inspection: ISO 2859

     Raw-Material: ”TechnoSil” 42-114-30

     Silicone Type: VMQ

     Hardness: 68 Shore A +/-5 DIN 53505 / BS 903 A-26

     Tensile strength: > 10,7 N/mm2 DIN 53504-S 1 / BS 903 A-2

     Elongation at break: > 440 % DIN 53504-S 1 / BS 903 A-2

     Tear resistance: > 22 N/mm ASTM D 624-B / BS 903 A-3

     Impact resilience: 56 % DIN 53512 / BS 903 A-8

     Compression set: 35 % DIN 53517 / BS 903 A-6

     Temperature Range: - 60oC to + 200oC (Constant operation)

     Dielectric Strength: 23 kV/mm ( 2 mm plate) VDE 0303

     Dielectric Constant (e): 2,9 (25oC and 50Hz) DIN 53482 / VDE 0303 

     Volume Resistivity: 1015 Ohm×cm  VDE 0303 

     Dissipation Factor (tan d): 40x10-4 VDE 0303 

     Ignition temperature: 450oC

     Flame Point: 750o

     LOI (Oxygen Index): 23 % ASTM D 2863


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