The Hengstler 0497479 is a pneumatic preset counter from the Type 497 series, built as a straightforward adding counter for machines where an operator needs to set a target count and have the machine react once it’s reached. It’s a 3-digit display unit with front panel mounting, secured with screws rather than a snap-in bezel.
Reset can be pneumatic, automatic, or manual depending on how it’s configured, and the preset itself is set with a simple pushbutton, so there’s no separate tool or software needed on the factory floor. It runs on 2 to 8 bar of oil-free air (filter pore width under 40 µm), operates from 0°C to +60°C, and mounts through a standard 52 x 52 mm front panel cutout. Connection is via rapid-fit fitting or M5 hose coupler.
From our experience, this gets specified for production lines and packaging machinery where a simple, rugged, non-electronic preset counter is preferred over an electronic one, often because the panel already has pneumatic control lines run to it. Before we quote this, we would normally check whether you need the standard or ATEX-rated version, and confirm the connection type matches your existing air line fitting. Hope this helps.
