New Lumberg automation robotic product programme from Belden

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Belden Inc. is launching a new robotic product programme for the Lumberg Automation range in the EMEA region. The Lumflex STL 500 is a UL-certified, four-pole control cable with a torsional strength of +/- 720° per metre. It is also fire retardant, resistant to lubricants, acids, alkalis and UV radiation, and capable of withstanding welding sparks. The operating temperature range is -45degC to +80degC.

This control cable is available on drums of 100 or 500 m and with moulded IP67-rated M8 and M12 connectors (straight or angled, with or without wiring). The versions with moulded connectors at one end are available in lengths of 2, 5, 10, 15 and 20 m. Those with moulded connectors at both ends can be obtained in combinations of M8/M8 and M12/M12 and with standard lengths of 0.3, 0.6, 1, 1.5, 2 and 5 m. Thanks to hundreds of different standard moulded connector versions, individual lengths of cable, and a broad range of field-attachable connectors, the robotic product programme is suitable for almost any automation application that requires reliable wiring of industrial robots or electrical/electronic modules. Customer-specific versions can also be supplied.

With a halogen-free jacket of black polyurethane (PUR), the STL 500 control cable has a diameter of 5.1mm. The four copper conductors are colour-coded brown, white, blue and black (in a clockwise direction) and have a cross-section diameter of 0.34mm². An aramid core prevents the conductors from sticking to each other or to the jacket, so ensuring optimum strain relief. The control cable can carry an operating voltage of up to 500V.

Because the junction between the connector contacts and leads is completely enclosed in insulating plastic, the moulded control cables guarantee reliable contact. This eliminates problems such as depressed pins or sporadic vibration-related short circuits. Furthermore, the moulding ensures tight connections even when cables are subject to strain or compression.

The field-attachable M8 and M12 connectors in the robotic product programme have a contact resistance of ≤5mΩ. Rated current is 4A (at 40degC). Depending on the version, rated and test voltages are between 30 and 240V or 0.8 und 2.5kV (eff./60s). Insulation resistance is >109Ω. The connectors’ compact, translucent housing is made of TPU (thermoplastic polyurethane). Further features include a self-locking threaded joint, rolled spring contacts, and a so-called ‘piggyback circuit’, which ensures correct operation even if the LED display is damaged.

Flexible automation tools

Belden’s new Lumberg Automation Robotic product programme has possible application scenarios ranging from welding and painting processes in the automotive industry, and automatic placement machines for electronics engineering, right through to material handling and packaging. Product Manager Joachim Kiera says: “Thanks to ultra-modern sensors and high-resolution imaging systems, industrial robots are increasingly developing into flexible automation tools for an enormous range of applications. Ensuring a high degree of operational reliability, our new product programme supports this trend.”

To find out more about Belden’s new robotic product programme for the Lumberg Automation range, please visit

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