Nov. 23, 2012
-- For ten years now, the igus E6 series has been in use all over the world wherever extremely quiet and low-vibration cable carrying is required at maximum speeds and with high accelerations. “With the E6.1, the so-called polygon effect that can occur when an energy chain is rolling is reduced to a minimum, resulting in extremely low noise of down to 37 dB(A),” explains Justin Leonard of igus UK. “In addition, rigorous testing of the second generation E6.1 confirm improvements in abrasion resistance and lower wear, making it well-suited to clean room applications where up to ISO Class 1 – IPA is required.”
The elastic polymer spring elements connect the side parts of the energy chain to one another and prevent relative movements between the joints. Since the classic pin/bore connection is no longer used, friction and abrasion are reduced to a minimum even after millions rolling cycles. According to an expert report presented by Cologne Technical College, up to 3.8 billion cycles were confirmed possible with the E6.1, depending on the machine program being used.
The significant weight saving of up to 37 percent (compared to the existing E6.29) improves dynamics and lowers the required drive force; the new E6.1 is also 2 dB(A) quieter. The optimised spring mechanism makes the E6.1 more modular, enabling the energy chain to be extended and shortened as required and helps speed up assembly and disassembly time. Whilst having the same internal dimensions, the E6.1 is both narrower and lighter, and the smooth interior helps increase the service life of cables and hoses.
The combination of inner link and outer link on the new E6.1 offers users a whole range of new possibilities. The pretension of the energy chain can be adjusted by reversing the inner link. This is very useful for applications in tight spaces or for gliding applications. If, on the other hand, the outer link is reversed, the stop-dog limit is changed, and with it the direction of rotation of the energy chain; this makes small circular movements and S-shaped movements possible, in “zigzag” chains for example.
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