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Timing belts antistatic

CONTI® SYNCHROFLEX polyurethane timing belt antistatic

Antistatic characteristics of CONTI® SYNCHROFLEX polyurethane timing belts are reached by:

  1. post-process application of an electrically conductive coat on the belts with and witout textile facing
  2. a special conductive polyurethane mix (max. belt length 700 mm)

The colour of the antistatic timing belts is black.

Surface resistance R ≤ 106 Ω

Application/field of application

Antistatic CONTI® SYNCHROFLEX polyurethane timing belts are suitable for tasks where electrical charges are not recommended and/or not permitted, e.g. the transport of electrical modules, drives and/or conveying lines in hazardous surroundings.

Electrical charges

Electrical charges of timing belts due to continous separation of two surfaces in contact are to be expected, e.g. drive pulley and timing belt. This electric charge can be considerable and as high as implying the danger of ignition at the moment of its discharge. The value of the electric charge depends on the materials out of which timing belt, synchronous pulley, tension roller and/or support roller are manufactured. The charge increases with an accelerating belt speed, belt pre-tension and contact surface width.

Antistatic characteristics

Antistatic CONTI® SYNCHROFLEX polyurethane timing belts eliminate reliable electrical charges. According to DIN 22104 "Antistatic conveyor belts", the surface resistance must be below 3 * 108 Ω. The surface resistance R = of antistatic Synchroflex timing belts amounts to R ≤ 106 Ω.

Quality control

The measurement of the conductivity is made using flexible tongue electrodes according to DIN 53482 or DIN 53596. Upon request, the wear resistance of the antistatic layer is checked on a test belt for timing belts with antistatic facing. If the wear resistance test reveals a surface resistance of R ≤ 106 Ω, a sufficiently high wear resistance and/or conductivity are guaranteed. Due to the fact that during extended operation and possible wear the conductivity of the antistatic timing belts can deteriorate, regular checks of the resistance values are indispensable. For application in hazardous areas (explosion hazard) please contact our technical department for advice.

Ordering example

CONTI® SYNCHROFLEX polyurethane timing belt 25 T 5/630 antistatic coated