Photoelectric Sensors for Harsh Environments Model H2B

Azbil Photoelectric Switches for Harsh Environments Model H2B are designed for long term use in harsh environments such as those in the metalworking processes of automotive manufacturing equipment.

For automating manufacturing equipment such as machine tools, the metalworking processes of production lines for automobiles and automotive parts require many photoelectric switches. Most switches currently employ resin housing due to their intended use in clean environments. However, breakdowns frequently result when used in metalworking processes that encounter various oil-based coolants due to coolant penetrating the switch interior through cracks, cables, or other pathways.

Azbil offers an environment-resistant model that has dramatically improved robustness and oil resistance over standard models and contributes to the stable and reliable operation of production lines in harsh environments. The Model H2B features die-cast housing for shock resistance and a glass lens cover. Azbil has enhanced the switches' protection from coolants by improving the sealing of cables and outlets and filling cable interiors with epoxy resin. Model H2B is designed to reduce interruptions to production lines caused by switch breakdown and increase factory operating efficiency.

Features

Robust construction and superior oil resistance

  • The construction of the Die-cast housing and glass lens cover does not use resin, which prevents cracking.
  • Multiple sealing mechanisms prevent coolant from infiltrating into gaps and other small openings.
  • The cable interior is filled with epoxy resin and acts as a barrier against coolant from seeping in.

Inclusion of a model that includes a slit

  • Increased detection performance of small objects is achieved due to a narrowed light beam, which is useful when detecting tools with a small diameter or differentiating irregularly-shaped parts.

Inclusion of a standard model with a 10-meter cable

  • By eliminating the need for an extension cable, the Model H2B ensures a tight and secure connection that effectively prevents any coolant leak

Applications

Production area Potential application Example illustration
Machine tools, machining areas Environments in which a photoelectric switch is constantly exposed to coolants when metal parts to be cut during machining are covered in coolant. An example of a metal part for processing being detected An example of a metal part for processing being detected
Machine tools, tool changing areas Environments are extremely close to the machining section, and mist coolant is constantly present in the air. In addition, environments where it is necessary to accurately detect the presence of tools of varying sizes, which require a photoelectric switch with a narrow beam. Detecting small-diameter tools Detecting small-diameter tools
Transport of metal parts Environments extremely close to the machining section and mist coolant is constantly present in the air. In addition, environments where it is necessary to differentiate various metal parts for transport, which require a photoelectric switch with a narrow beam.
Detecting metal parts in an engine block Detecting metal parts in an engine block
Differentiating parts on a palette Differentiating parts on a palette (H2B models with a slit)