You are doing request/reply over that transport. And the was no reply coming back, and so after 30 seconds, there is a timeout exception.
If you do not want to do request/reply but one-way instead, then configure the camel-mina component to sync=false.
And if you want to do request/reply you can raise the timeout to be higher than 30 seconds if you need more time.
See the camel-mina docs: http://camel.apache.org/mina