Eric, I think the EQ6 should be able to carry it as this is the Skywatcher combination that is sold.
See this guide from Myastroshop.
http://www.myastroshop.com.au/guides/sw252.asp
As I am beginning to learn though its not just weight carrying capacity one needs in a mount. The combination will work for short focal length photography unguided if exposures are short and guided if exposures are long. However for longer focal length ie higher magnification.
Regards