New LED UV spot curing system from Hoenle

Hoenle is launching its new bluepoint LED UV spot-curing system, which combines high irradiation intensity, flexible process control, and a compact, scalable design for demanding industrial curing applications

Designed for applications in medical device manufacturing, electronics production, optics and photonics, the bluepoint LED delivers irradiation intensities up to 20,000mW/cm² and is available at wavelengths of 365nm, 385nm, and 405nm.

The new system has a modular architecture, and up to 20 LED heads can be operated via a single touch display. Each control unit can support up to four LED heads, and up to five control units can be stacked and combined, enabling users to configure the system to meet their production requirements. The scalable architecture protects customers’ investment by allowing the system to expand as production requirements evolve.

The bluepoint LED features a modern, detachable touch display for simple, intuitive operation. The display can be mounted directly on the control unit or on the production machine, providing flexibility for integration into automated manufacturing environments.

As part of the launch, Hoenle has developed new, improved LED heads, with a diameter of 12mm and a length of 55mm. Their compact design makes them suitable for installations where space is limited, while ensuring effective heat dissipation. For applications in difficult-to-access areas, the LED heads can be equipped with a 90° beam-deflection adapter.

These new LED heads can be connected to existing bluepoint LED devices from Hoenle and can also serve as a direct drop-in solution for third-party curing systems of identical dimensions.

The LED heads can be combined with a variety of optical lenses that generate irradiation diameters from 3mm to 20mm. In addition to the established spot optics, Hoenle offers a 10x2mm line optic that enables homogeneous linear irradiation. This makes the system suitable for applications such as active alignment, where precise, uniform exposure is essential.

The bluepoint LED also includes intelligent power control with adjustable output from 10% to 100%. Integrated Process Flow Control (PFC) enables users to program and store complete irradiation sequences, with up to six individual programs. These functions facilitate repeatable and reliable curing processes in automated production environments.

The system provides comprehensive connectivity options for seamless machine integration. A PLC interface supports switching, monitoring, and status feedback of the LEDs, while external analogue inputs enable individual power adjustment for each LED head. The bluepoint LED delivers a signal input for safe LED switch-off in accordance with current safety guidelines. An RS232 interface provides external control and transmission of exposure parameters. Additional accessories extend application flexibility, including extension cables for the LED heads in various lengths and adapters for operating up to four foot switches per control unit.

Typical applications include the spot curing of UV-curable adhesives in automated production processes. The bluepoint LED is suitable for high-volume manufacturing environments such as disposable medical devices, electronics assembly, bonding of optical components, and photonics applications. Through cooperation between Hoenle and Hoenle Adhesives (formerly Panacol), customers benefit from optimised curing and bonding processes that increase efficiency and reduce overall operating costs.

With a service life exceeding 20,000 operating hours, irradiation intensities up to 20,000mW/cm², flexible optics, and advanced process control capabilities, the new bluepoint LED provides a powerful and versatile solution for precision UV curing applications.

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