Electrodeionization Power

A customer is looking into start using Electrodeionization Modules [EDI] with their RO skids. These EDI modules require any where from 160VDC 9A to 360VDC 40A.
I read this DC requirement from different module manufacturers.
I haven't been able to locate one of these transformer rectifiers on the net and the manufactures just mention that this power is required but no mention as it is an option or is included.
Any help in location something like this would be appreciated.

Thanks,
Bob O
Happy New Year.

TDK-Lambda does DC supplies
http://www.us.tdk-lambda.com/hp/product_html/esspower.htm
Although the larger unit is just off the spec sheet, you might contact them for suggestions

Thanks danw