Why choose V2A stainless steel caps over plastic ones?

The 6AV6881-0AV62-1AA0 caps are machined from V2A stainless steel (AISI 304 equivalent) rather than plastic. In high-traffic operator stations — where a touch pen sees hundreds of screen interactions per shift — plastic caps wear predictably and need replacement on a fixed interval. V2A caps resist that wear. They maintain their tip geometry longer, glide consistently across the screen surface, and are less likely to deform under heavy-handed use. For operators wearing gloves who may apply more pressure than intended, the steel cap transfers force cleanly to the resistive layer without the cap itself flexing. That said, the increased hardness means the cap is less forgiving on the screen if debris is present — keep the screen clean and the cap crowned, as with any precision input tool.

Dual-technology compatibility — one cap for both resistive and capacitive panels

Unlike the RES caps which are resistive-only, the V2A caps are validated for both capacitive and resistive touch screen panels. This makes them the natural choice if your facility runs a mixed fleet of SIMATIC HMI panels spanning both technologies, or if you use the V2A universal touch pen system (6AV6881-0AV22-0AA0) which ships with these caps. The steel tip is electrically conductive for capacitive sensing and mechanically firm for resistive actuation — one cap, both modes.

Frequently Asked Questions

How many caps come in one order?

Each order of 6AV6881-0AV62-1AA0 contains 5 V2A stainless steel replacement caps. This is the standard pack quantity across the SIMATIC HMI touch pen cap range — RES, ELO, and V2A caps all ship in 5-packs. The general-purpose plastic caps (6AV2181-8AV60-0AX0) ship in a 10-pack.

Do V2A caps fit the slim aluminum touch pen?

The V2A caps are threaded for the V2A universal touch pen system. The slim aluminum touch pen (6AV6645-7AB14-0AS1) uses a different cap thread and is resistive-only — use the RES caps (6AV6881-0AV63-0BA0) for that pen. Always match the cap type to the pen system it was designed for.