3D printer 500x500x300mm working area

Hello everyone.

I need help buying a 3D printer these are the requeriments.

Working area approximately 500x500x300mm or larger
Approximate price $3000-$6000

The only one I found with similar characteristics is http://3dprint.com/13062/sharebot-xxl-3d-printer/

thanks to all

Check out Robobeast. Don't have a link so you'll have to google them. They make large volume printers. Excellent build quality.