Dupps Co.

In pulp and paper mills, the Dupps screw press is the world's best-selling solution to the problem of dewatering sludge. Dupps systems also help pulp and paper mills process recycled paper by removing solvent-carrying ink from the pulp before the paper is made.

Put the squeeze on downtime with the world's strongest screw press.
From solid construction to solid value, everything about this press is made to last.The Dupps Company designs, engineers and manufactures the Dupps Dewatering Screw Press -- the biggest, heaviest, most rugged and durable machine of its kind.

This press's reliability also includes ready-to-ship, Dupps-made parts and fast, highly qualified service. And as long as your sludge composition remains constant, this unit is guaranteed to meet performance specs precisely. So if your input remains constant, your output will stay constant. Or we'll make it right. Period.

Dupps equipment also helps make recycled paper.
After used paper is turned into a pulp and processed with ink-removing chemicals, a Dupps screw press removes just the right amount of solvent-carrying ink from the pulp before it's made into recycled paper.

Spent solvent -- especially when it contains a great deal of scrap material -- presents a difficult challenge. But Dupps has developed a batch vessel which evaporates solvent for re-use and allows the recycling or disposal of the solids.

Expert screw press service, including shaft rebuilding and replacement.
Looking for the best way to bring your dewatering press back to life? Bringing the shaft up to original factory specs with a rebuild or replacement can typically cost as little as 10 to 20% of the investment needed for a new press.

With more than five decades of experience in press design, manufacture and repair, Dupps is the best source for factory-direct press service. Only Dupps has the original specs, OEM replacement parts and expertise to guarantee that critical components -- such as bearings and chokes -- fit perfectly and perform to rated specifications. You can also count on quick turnaround to keep downtime to an absolute minimum. Often work can be performed on-site thanks to portable welding (including sub-arc), turning and boring capability. With unmatched press engineering, machining and fabrication experience, as well as ASME Code welding capability, Dupps can handle the toughest rebuild jobs on any Dupps press -- and other presses as well.