With stop you mean kill? You need a prawnsuit with a drill and grappling hook. Just hook on to the Chelicerates' sides and start drilling. This will eventually kill them, but it will take a while, and you need to make sure you hook them close enough to the head that they cant twist around and bite you but far enough away from the head that you aren't in reach of their bite. Let go if you take too much damage, run away, repair your suit, then go back in for another ride. Be warned, this does take a while, and you can't control where the rodeo goes once you latch on. You can easily end up getting dragged into the territory of another Chelicerate, or worse, get dragged to the edge of the map into the abyss.
