Their distinctive aesthetics and enhanced safety features make the knobs well-suited for applications in medical and industrial electronics design, the manufacturer says.

BRIDGEVILLE, Pa.—A manufacturer of plastic and metal enclosures for OEM electronics equipment has introduced control panel tuning knobs that are reported to offer distinctive aesthetics, ergonomic design, and enhanced safety features.

OKW Enclosures, Inc., is the North American subsidiary of OKW Gehäusesysteme GmbH, Germany. In addition to manufacturing enclosures, the Bridgeville, Pennsylvania-based OKW manufactures tuning knobs for medical and OEM electronics.

The company said in a release that its TOP-KNOBS tuning knobs integrate seamlessly into modern control panels for applications such as measurement and control systems, laboratory instrumentation, medical devices, HVAC, communications, and building automation.

TOP-KNOBS are said to integrate seamlessly into modern control panels. (Image courtesy OKW Enclosures, Inc., EIN Presswire)
Inset: TOP-KNOBS can be specified with push-on or lateral fixing on the potentiometer spindle, according to OKW. (Image courtesy OKW Enclosures, Inc., EIN Presswire)

“TOP-KNOBS combine award-winning design with precision control—ideal for medical and industrial tech where style, safety, and customization matter most,” said Sean Bailey, president of OKW Enclosures, in the release.

Engineered for both form and function, each TOP-KNOB features a robust PA6 main body and a clip-in marking element that conceals the lateral fixing screw while enabling precise calibration. These marking elements are available in five functional shapes (Pin, Globe, Disk, Wing, and Arrow) and are offered in a palette of soft, modern pastel tones: coral (pink), beach (yellow), lagoon (green), sky (blue), and mineral (gray). The main knob body is available in two standard colors: volcano (gray) and nero (black), according to the release.

The tuning knobs are compatible with rotary potentiometers featuring either round shafts (DIN 41591) or flattened ends. Two secure fixing options are available: push-on or lateral screw fixing using a hex-socket set screw with a cup point.

“This design ensures electrical safety by eliminating the risk of contact with live components,” the release stated. “The recessed underside of each knob accommodates external potentiometer fixing nuts, further enhancing installation flexibility.”

Design engineers can specify the optimal TOP-KNOB from an extensive range of marker styles, colors, and body sizes. (Image courtesy OKW Enclosures, Inc., EIN Presswire)

The TOP-KNOBS are available in five diameters—16mm, 20mm, 24mm, 31mm, and 40mm—and are reported to support bore holes of 4mm, 6mm, ¼ inch, and 6/4.6mm. Accessories such as M7, M10, and 3/8-inch-32G round nuts are also available for secure front-panel mounting, according to OKW.

“Customization is a key advantage of the TOP-KNOBS range,” the company stated in the release. “OKW offers a comprehensive suite of services, including CNC machining, pad printing, laser marking, and full assembly of accessories. This enables customers to tailor the knobs to their exact technical and branding requirements.”

Designed by Martin Nußberger of polyform Industrie Design, TOP-KNOBS are said to combine contemporary styling with hygienic surfaces and intuitive usability. According to OKW Enclosures, their widespread adoption across diverse industries underscores their versatility and the value they bring to modern electronic interface design.