igus polymer ball transfer units ensuring safe conveyance of products

Users rely on ball tables for transducers in roller
conveyors and for the transport of sensitive goods. igus polymer ball transfer
units are used in this application because they can move loads even up to 500N
smoothly and in all directions without any lubricant.

To protect both conveyed goods and people from
uncontrolled static electricity discharge, igus has now developed the
tribo-polymer xirodur F182 for its ball transfer units. The new material available
from Treotham is extremely durable and has proved its electrostatic
conductivity in tests.

In cold weather and dry air, when one touches an
object or shakes a person’s hand, suddenly a slight electric shock passes
through the body. Protection from electric shock can only be provided by textiles
that do not become charged. The situation is similar in industry. If you work
in production, you wouldn’t want to get a shock whenever you touch a box or a
product. Here, electrostatically conductive materials are required.

igus has now developed the xirodur F182 material for
its xiros polymer ball transfer units. The ball transfer units are chiefly used
in ball tables to move sensitive or heavy loads – up to 50kg per unit,
depending on size – in all directions. A smooth and lubrication-free transport
is possible by the use of abrasion-resistant and durable tribo-polymers. Thanks
to the special composition of the new xirodur F182 material, static charge can
now be dissipated by the ball transfer unit. It is a significant advantage over
metallic ball transfer units, which have an insulating effect with the use of

Such electrostatically dissipative components are
required especially in the computer and semiconductor industries. Else, a surge
of electrostatic charge not dissipated by an insulating material can easily
destroy the product.

The electrostatic conductivity of the ball transfer
units was examined at igus’ in-house 3,800-square-metre test laboratory. The
ball transfer units made of the new material xirodur F182 were tested against
ball transfer units made of the tried-and-tested xirodur B180.

While xirodur B180 had a surface resistance of 1012 Ω
in the laboratory and also an insulating effect, xirodur F182 had a surface
resistance of less than 105 Ω and was, therefore, classified in the conductive
category according to DIN EN 61340-5-1. As a result, when using the polymer
ball transfer units, the user can be sure that puncture voltages are not
discharged onto the transported goods or the employees.

For more information, please visit the Treotham
Automation website www.treotham.com.au
or call 1300 65 75 64.

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