The press-head, operating at temperatures
that can exceed 350˚C, descends to apply precise heat and pressure. This causes a controlled thermal deformation of the plastic, creating a permanent, robust, bond with the metal parts. To safeguard this process, a company was
using mechanical safety barriers which had to be opened and closed by operators every cycle. This slowed down the loading and unloading process and impacted workplace ergonomics. To overcome the problem, the company
chose Contrinex’s ‘YBES’ ‘Extended Slim’, IEC 61496 Type 4 safety light curtains. These robust units feature an aluminium 26 x 26mm profile and are rated to EN/ISO 13849-1 Category 4, Performance Level PL e, and IEC 61508 Safety Integrity Level SIL 3, making them ideally suited for this application. Mounted vertically across the open front
of the press enclosure, the light curtain creates an invisible protective field. Its 30mm resolution is optimised for hand detection, and its 795mm protected height
ensures the entire access area is safeguarded. If an operator's hand or any other object intrudes upon this field while the press is active, the light curtain immediately halts the operating cycle, preventing the hazardous descent of the hot press-head. Of further benefit, the YBES curtains
feature inbuilt alignment LEDs to expedite installation, and a Bluetooth connection to a mobile phone or tablet running the ContriApp, which facilitates their commissioning.
The tough GV/GVR-Series’ high precision
taper roller bearings equip the gearboxes with high loading capacity. In addition, the high torsional rigidity and wheel hub supporting high vertical load capacity ensure the gearboxes are capable of handling maximum vertical loads of up to 1,450 Kg and output torque ranges from 54 Nm – 418 Nm. Delivering optimised moment of inertia, the
gearbox series has low backlash, ring-gear housing rotation, and 100% optimised helical bevel gearing hardened to 840 HV for high efficiency and precision.
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