Ideal for pulp and paper mill applications, Dupps high-volume presses lower moisture for efficient incineration and reduce the volume of waste in landfills.

Dupps Paper Sludge Press  From solid construction to solid value, everything about this press is made to last. Designed, engineered and manufactured in the U.S. to be the most rugged and durable machine of its kind. See More.

Paper Recycling Screw Press  Dupps screw presses also help pulp and paper mills process recycled paper by removing just the right amount of solvent-carrying ink from the pulp before the paper is made. See more.

Screw Press Repair and Rebuild 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 screw press. See More.

Dupps Sludge Press brochure


Service is our most important obligation.
 Our staff of full-time Field Service Technicians is expert in every aspect of maintenance and repair of screw presses and other types of processing equipment including welding capability that meets ASME Code Section VIII requirements. With all the specific tools necessary to maintain, repair and upgrade Dupps and other kinds of machinery properly and efficiently, we can quickly bring your system and equipment up to peak efficiency with a minimum of downtime.

The Dupps Parts Department, with a full inventory of maintenance and repair parts, stands ready for the fastest possible response, often within twenty-four hours of a call. Because replacement part availability is critical — even a small, inexpensive part can shut a plant down — our customers can call Dupps twenty-four hours a day, seven days a week.

The Dupps high capacity horizontal screw press is your best choice for high-volume dewatering. As long as your sludge composition remains constant, this unit is guaranteed to meet performance specs precisely.

It features adjustable clearance between screen and shaft flighting, a pneumatic choke with torque limiting capability for lock-up protection, and a heavy duty gearbox with variable speed drive to compensate for material feed changes. A center drainage configuration and unique chute design allows for easier material handling. Download Dupps Sludge Press brochure.

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 of the solids. 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.

Only Dupps has the original specifications, 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.