Flash Star™ – Siegling Extremultus

Flash Star™ flat belts play a major role in containing static electricity in power transmission and conveying systems. With excellent conductivity in all three directions, they help to ensure ESD (= Electrostatic Discharge) compliance of the machinery and to prevent unwelcome side effects.

A firm grip on static electricity

Function & Construction

If you use power transmission and conveyor belts, it’s impossible to avoid static electricity building up. This phenomenon is called triboelectric charging. It occurs when different materials come into contact with one another and then separate again. During conveying, the products concerned can also have the same impact.

Flash Star™ flat belts make designing ESD-compliant machinery easier. Typical consequences of electrostatic build-up and uncontrolled discharge can be as follows:

malfunctions when processing foil and paper products because they stick to one another or to the belt
soiling due to dust, lint etc.
electric shocks
damage to electronic components (i.e. the products conveyed and machine components)
fires and explosions

Alternative tension member material: polyamide sheet or elastic urethane
Polyester fabric tension member with conductive elements
Application-driven surface patterns
The whole belt is conductive in all three directions
Durable coatings with a large proportion of conductive particles

Further Information

Standard product range
Siegling Extremultus
Flash Star™
Siegling Extremultus
Grip Star™
Siegling Extremultus
Drag-band conveyors
Siegling Belting
Paper industry and letter sorting
Print & Paper
Printing industry
Print & Paper
Folder and carrier belts
Print & Paper
Compendium Flat belts
Siegling Extremultus

Further Links

Special Conductivity

Electrostatic build-up from the products conveyed and due to triboelectric charging.

Hazards due to uncontrolled discharge of static electricity.

Conductivity right through the belt significantly enhances the controlled discharge of static electricity. Electricity in the belt is discharged directly via electrically conductive components on the machinery (e.g. rollers, supports). Extra mechanical components like metallic idlers, or brushes to discharge the build-up of static electricity aren’t necessary.

The properties	The advantages
conductive in all three directions, even through the belt	improves discharge, facilitates ESD-compliant machinery design
supports the controlled discharge of static electricity	enhances process reliability and safety, e.g. for paper and foil
minimises the risk of uncontrolled discharge	prevents electric shocks, sparks and damage to electronic components
also available in High Grip and Medium Grip versions	a wide range of applications

ESD-protected product

This product can discharge electrostatic build-up in a controlled manner. The belt’s resistance is under 10⁹ Ω and compensates for differences in electricity potential in a short space of time.

Electrostatic Characteristics

Classification of our products’ electrostatic characteristics

(Measurements compliant with DIN EN ISO 21178)

Non-antistatic (NA)

Belt material with isolating properties.

Antistatic (no special abbreviation)

Belt material with electrically conductive components within the belt or on the surface. Conductivity of the whole belt lengthways R_Di < 3*10⁸ Ω.

Highly conductive (HC)

Conductive top face, usually conductive underside too. Must be antistatic as well. Conductive on the surface lengthways R_OB < 3*10⁸ Ω.

Highly conductive plus (HC +)

Conductive top face, underside and through the belt too. Has to be highly conductive on both sides. Conductive right through the belt R_D < 10⁹ Ω.Flash Star^TM

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Flash Star™ – Siegling Extremultus