Web Converting Systems

Filtration media casting and coating lines

Filtration Media Casting and Coating Lines

New Era has provided membrane casting, coating and drying lines that are running in multiple countries in North America, Europe and Asia.  These equipment lines are for the fabrication of a wide variety of supported and unsupported membranes including RO-Reverse Osmosis, FO- Forward Osmosis, NF- Nanofiltration, UF- Ultrafiltration, and MF- Microfiltration.  These projects have been for applications including RO water, brackish water, fresh water, dairy, air, gases and biological fluids.  The coating  equipment supplied has been built for aqueous solutions, organic solutions and surface treatment/protective coatings.  These coatings including water, acetone, Isopar, IPA, MPD, methanol, PVA and TMC.  We have experience with membrane coating lines having two, three or four coating stations.  The coating methods we have implemented are dip (with or without post coating metering), die (supported, unsupported and curtain), kiss, knife over roll, knife over table, mayer rod, spray (with or without post coating metering), two roll, meniscus and several proprietary methods including “wet on wet” applications.   These membrane equipment lines can be provided roll to roll/non-continuous operation to fully automatic/continuous processing.  Additionally, our membrane coating, casting and drying lines are provided with fully integrated control systems complete with remote diagnostic capability.  These lines are also available with supervisory systems complete with data acquisition, real time and historic trending and recipe control.  Another key component of our experience with membrane casting and coating is our ability to provide fully integrated coating supply and recirculation systems which include pumps, tanks, filters, heat exchangers, pH monitoring/controlling and solution makeup control.  Our quench, rewetting, rinse, saturation and treatment tanks fabricated from a wide variety of materials including polypropylene, Teflon (coated), 304 SS, 316 SS and Hastelloy are built to handle a wide variety of fluids/chemicals.  These fluids/chemicals include water, citric acid, glycerin and methanol.  We offer a range of tank designs including removable rolls, non-contact (fluid greased) rolls and tanks designed with rolls contacting only one (non-coated) side of the web.  These fully integrated tank recirculation systems include pumps, filters, heat exchangers, pH monitoring/controlling, fluid makeup control and tank level control.

  • Drying systems including air floatation and roller support using hot air and/or IR as well as internally heated roll type dryers
  • Every machine is custom designed and built to the customer’s specifications
  • All customer’s names, specifications, processes and requirements are kept confidential

Specifications

Web Widths

8″ (20cm) – 47″ (120cm)

Membrane Thickness

0.0006” (15 micron) – 0.016” (400 micron)

Web Speeds

3 fpm (1 mpm) – 200 fpm (60 mpm)

Tank Operating Temperatures

35 – 203 °F (2 – 95 °C)