chainflex® continuous flex cable catalog

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779 778 25 years of tests in the igus ® in-house Chainflex ® test lab have clearly shown that internationally valid standards for the testing of cables are quite useful, but do not meet the special requirements for the continuous movement in e-chains ® . Thus we also have the standard ratings for "Mechanical tests - Low temperature bending tests for insulating sheaths and jackets" according to IEC 60811-504. According to this internationally recognized standard, cables, according to your outer diameter, are wound around a mandrel and cooled down for a certain time to the temperature to be tested. After the removal, a visual inspection is carried out. For the material to be tested, the test is deemed to have been pas- sed if the material (in this case outer jacket) does not show damage, e.g. cracks. Based on this standard, all cables for the movement are tested in this way and the limit temperature is specified in catalogs as the lowest temperature for the moving application. Thanks to many different series of tests, igus ® has shown that these values are in accordance with the standards, but in continuous movement in the e-chain ® the materials tested in this way do not withstand the temperature. Example: igus ® test 4876. Here, the so-called chain-compa- tible PUR cables were tested in comparison with those with Chainflex ® TPE jacket material. The cables to be tested are moved in continuous motion in the igus ® 40-foot cooling container in an e-chain ® at -40°F with a bending factor of 6.5 x d on a travel of 16.4 ft (5 m). The results of this experiment are extraordinary and representative: Cables, which are available on the market as cold-flexible up to -40°F with a PUR outer jacket and are marketed professing a service life of 10 million cycles in the catalogues, fail in a real test in an E-Chain ® at -40°F with a massive jacket break already after less than 41,000 strokes! The test of parallel running CF9-15-18, however, was dis- continued after more than 520,000 double strokes since no alteration could be detected at all. On the basis of this and many other test series, igus ® is the only renowned supplier on the market that is able to list three different temperature ranges in the catalogs: For the fixed installation, the flexible movement according to DIN EN 60811-504, as well as for the continuously moving application in the e-chain ® . Example: Test 4876 Tested at -40°F cold Bending tests in cold conditions in the E-Chain ® with amazing results. Calculate service life online: Details of the test online: A test result from the igus ® database Test no. 4876 Bend factor in E-Chain ® 6.5 x d Test temperature -40°F Result PUR jacket Break after 41,000 strokes Result Chainflex ® TPE jacket 520,000 strokes without any damage Media and cold tests of Chainflex ® cables and E-Chains ® in the 40-foot climatic container Jacket damage already after 41,000 strokes ... 40-foot climatic container for cable tests in continous motion at -40°F 520,000 strokes without any damage, which the CF9-15-18 managed in this test Result PUR jacket: Break already after 41,000 strokes Result Chainflex ® TPE jacket: Cable after the test with 520,000 strokes

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