The highlight difference between the two type puffing feed pellet machines are whether equipped with conditioner which is used to connect steam boiler, that is also to say, wet type need to install a steam boiler, while the dry type one doesn't need it. The other difference is the capacity, take DSP60 for example, the capacity of dry type fish feed pellet machine is 0.12-0.15t/h, while the wet one is of 0.18-0.20 t/h. So considering the two factors, you'd better choose the most cost-effective machine. If you have any other question, please chat on-line, leave us a message or send email.