Thinswitch - limit switch alternatives

We have been using the Thinswitches for years on our molds but, it has gotten to the point where we are replacing them quite often for various reasons and just like everything else the cost keeps going up. Do any of you know of a better alternative that will hold up or last longer?

Thanks.

Hello,
How about proximity switches? But these need good adjustments.
I like thin switches since they are mechanical and so 'sure'.
-Suhas

hello, I have a good experiences with Balluff sensors for example BNS006E