LCD Upgrade Kit for 12″ Heidenhain BE212 inside TNC / CNC machines

This upgrade kit is designed specifically for legacy Heidenhain controllers, including the TNC 151, TNC 155, TNC 351, TNC 355, and TNC 407/415 series. It replaces the original 12-inch monochrome or color CRT monitors used in these CNC units.

Yes. Unlike original CRT monitors that suffer from permanent image ghosting or “burn-in,” this LED-backlit LCD is immune to those issues. It provides a sharp, high-contrast image that remains clear even after years of continuous 24/7 operation on the shop floor.

No. The kit is designed for mechanical compatibility. It uses a custom mounting plate that matches the original Heidenhain CRT chassis footprint. The display will line up perfectly with your existing front bezel and button layout.

Heidenhain controls use non-standard video frequencies that consumer monitors cannot read. Our kit includes a built-in signal converter and specialized interface cables that automatically synchronize with the Heidenhain timing, ensuring a stable “Plug-and-Play” image immediately upon power-up.

Upgrading to an LCD reduces heat generation inside the control cabinet, which extends the life of other electronic components. Additionally, the LCD uses 75% less power than a CRT and eliminates the risk of high-voltage flyback transformer failures common in aging Heidenhain units.

Yes. The kit is designed for field installation by maintenance technicians or machine operators. It involves removing the old CRT bottle/chassis and bolting the new LCD assembly into the same position. No soldering or complex wiring is required.

Yes. The signal processing hardware in the kit is configured to correctly render the Heidenhain-specific color schemes (for TNC 400 series) or the high-contrast monochrome displays (for TNC 150/300 series), ensuring that all toolpath graphics and data tables are clearly legible.