Used Una-Dyn Equipment for Sale

Una-Dyn (Universal Dynamics, Inc.) was founded in 1957 in Rosslyn, Virginia and grew into one of the most established American manufacturers of resin drying and material handling equipment for the plastics industry. The company spent over a decade under German ownership after industrial filtration maker MANN+HUMMEL acquired it in 1995 for roughly $12 million, then was sold in 2008 to Italy's Piovan Group as MANN+HUMMEL refocused on its core automotive filter business. Una-Dyn has operated as a Piovan company ever since, and the brand is now often presented as Piovan UnaDyn.

In 2017 and 2018 the company relocated roughly 35 miles from its longtime Woodbridge, Virginia plant to a newly outfitted 90,000 square foot facility in Fredericksburg, Virginia, designed around lean manufacturing principles and roughly doubling production capacity. That Fredericksburg site is now the Piovan Group's North American headquarters and also builds Aquatech process cooling equipment for the region. Buyers researching older machines should note that documentation, nameplates, and service records may reference any of three addresses depending on vintage: Rosslyn, Woodbridge, or Fredericksburg.

Una-Dyn manufactures the Carousel Plus and IPC desiccant resin dryers, covering throughputs from small cell-side units up to large central drying systems, along with the Pet-Saver dryer engineered specifically for crystallizing and drying PET resin in beverage bottle production, the DHD and DC series dehumidifying dryers, the Vantage series energy-efficient dryers, vacuum loaders and receivers, Automate loaders, volumetric and gravimetric blenders, granulators, and complete central material handling systems including silos, bin sweeps, and conveying lines. Related product names encountered on used equipment include AutoLoad, AutoGrind, AutoDry, and H2O Engineered Water Systems.

Used Una-Dyn equipment is popular on the secondary market because of robust American construction, broad model coverage from cell-side to plant-wide systems, and the fact that Piovan continues to support the Una-Dyn legacy installed base through its North American operation. PET processors in particular seek out used Pet-Saver systems, since the crystallizing and drying requirements for bottle-grade PET are unforgiving and purpose-built equipment outperforms general-purpose dryers. Common inspection points on used Una-Dyn dryers include desiccant condition, heater and blower health, dewpoint sensor presence and calibration, regeneration valve operation, and control system generation. On conveying systems, check vacuum pump condition, filter status, and whether the original central controller is intact, since replacing a proprietary central control is often more expensive than the mechanical hardware it operates.

Meadoworks is your trusted source for used Una-Dyn equipment. As third-generation industrial equipment dealers and AMEA-certified appraisers with over 50 years of experience, we offer quality-inspected Una-Dyn machines at competitive prices. Browse the 8 used Una-Dyn machines listed above, or call 800-323-0307 for equipment not yet listed.

Every machine includes detailed specifications and high-resolution photos, and inspection visits are available for most equipment. We ship worldwide with experienced rigging partners and offer financing for qualified buyers. Have Una-Dyn equipment to sell? Get a free valuation or contact our team.