Darkness Falls blade traps

[Demonseethe]

I set up a kill pit where I have a raised "arch" where zombies run through the arch to get to me and I have placed blade traps on the front facing side at the top of the arch (so the blade cuts through the side of their heads). It seems to work pretty well except now that almost all zombies explode. Is there anything that I can do to make the blade more resilient when things are exploding? They don't seem to be getting destroyed due to the explosions themselves (so not too much HP dmg), but if a blast goes off it looks like the blades just get knocked off the arch blocks. I lost 4 blades with a single explosion.

[...👑 JOST AMMAN 👑...]

Electric posts to stun them during the cutting?

[Cor.]

There are titanium blade traps that are considerably stronger than the normal ones.

Also the blocks they are put onto should be titanium as well as the surrounding area. Demolishers and Mutant Demolishers dont 1 shot titanium, but beware the blast range on a Mutant Demolisher is enormous, so be warned