I tried 2 solution:

1) I've taken the tablespace TOM offline in the new instance, but when I import fromuser=TOM touser=MAX.............
I get error because not exist tablespace TOM

2)I removed MAX's quota on the TOM tablespace in the new instance.

ALTER USER MAX QUOTA unlimited ON TOM;

but when I import I get alway the same error:

ORA-01658: unable to create INITIAL extent for segment in tablespace TOM

I know That I must encrease tablespace TOM for avoid this error, but I must create 6 new users in 6 different tablespaces and I'd to increase tablespace TOM too much (how many GB?).

how can I import schema to a different tablespace?

Thanks
Raf