Flat Sheet Membranes
Established in 1989, Synder Inc. originally specialized in manufacturing industrial enzymes, in which spiral membrane technology was a vital part of the overall process. The company changed as Synder Filtration was established in 1994, a US wholly-owned membrane manufacturer in the San Francisco Bay Area.
At this time; Synder Filtration is developing new polymeric membrane technologies and applications for the Dairy, Food & Beverage, Biotech, Pharmaceutical, Automotive, and other industries in need of cutting-edge liquid separation technology.
As CA-tech ZONE, we provide Synder Filtration Flat Sheet Membranes for Nanofiltration, Ultrafiltration and Microfiltration applications. The standard size is 12″x12″ but please contact us for custom sizes which we can provide.
Nanofiltration Flat Sheet Membranes
Nanofiltration membranes operate within a precise molecular weight cut-off range of 100 – 800 Daltons, selectively sieving solutes based on their size and charge. This unique capability extends to the rejection of multivalent ions, and to a varying extent, monovalent ions, positioning nanofiltration as an indispensable asset in the arsenal of process and chemical engineers.
In applications demanding high solids retention, flat sheet nanofiltration membranes exhibit exceptional performance and longevity, offering a compelling balance between effectiveness and operational cost. Unlike their hollow fiber counterparts, flat sheet membranes boast robust support structures, enhancing their physical resilience and extending their service life.
Synder Filtration stands at the forefront, providing a comprehensive range of both dry and wet nanofiltration flat sheet membranes. Available in sizes spanning from a single square foot to thousands of linear feet, our membranes cater to diverse needs, from rigorous process research and pilot testing to spiral element winding and integration into plate & frame membrane systems.
| Model | Polymer | Approx. Molecular Weight Cutoff |
Typical Operating Flux | Avg Lactose Rejection1 | Avg MgSO4 Rejection2 | Avg NaCI Rejection3 |
| NFS | Proprietary PA TFC | 100-250Da | 30-40 GFD | 99.5% | 99.5% | 50.0% |
| NFX | Proprietary PA TFC | 150-300Da | 20-25 GFD | 99.0% | 99.0% | 40.0% |
| NFW | Proprietary PA TFC | 300-500Da | 45-50 GFD | 98.5% | 97.0% | 20.0% |
| NFG | Proprietary PA TFC | 600-800Da | 55-60 GFD | 60.0% | 50.0% | 10.0% |
1Test Conditions: 2% Lactose solution at 110PSI (760 kPa) operating pressure, 77° F (25° C)
2Test Conditions 2,000ppm MgSO4 Solution at 110PSI (760 kPa) operating pressure, 77° F (25° C)
3Test Conditions 2,000ppm NaCI Solution at 110PSI (760 kPa) operating pressure, 77° F (25° C)
Ultrafiltration Flat Sheet Membranes
We provide Synder Brands a diverse range of flat sheet Ultrafiltration membranes, covering all available membrane types. While our standard sizes are 12″ x 12″ and 1m x 1m, we also offer custom sizes and flat sheet rolls to meet specific requirements. These flat sheet membranes are ideal for small-scale lab testing, offering ease of installation and compatibility with various test units.
Ultrafiltration membranes feature a molecular weight cut-off range of 1,000 to 500,000 Daltons, enabling the selective rejection of large macromolecules and proteins. Widely utilized across industries including dairy, food & beverage, biotech, and pharmaceuticals, these membranes are integral to numerous processes.
In applications with high solids content, flat sheet ultrafiltration membranes excel in performance and longevity, providing a compelling balance between membrane life and operational cost. Unlike hollow fiber counterparts, our flat sheet ultrafiltration membranes boast a robust support material that substantially enhances their physical durability.
At Synder Filtration, we offer a comprehensive selection of both dry and wet ultrafiltration flat sheet membranes, available in a wide range of molecular weight cut-offs. From process research and pilot testing to spiral element winding and integration into plate & frame membrane systems, our membranes cater to diverse needs, with product sizes ranging from a single square foot to thousands of linear feet.
| Membrane | Type | Polymer | Molecular Weight Cut-Off |
| XT | UF* | PES | 1,000 |
| VT | UF* | PES | 3,000 |
| MT | UF* | PES | 5,000 |
| ST | UF* | PES | 10,000 |
| SM | UF* | PES | 20,000 |
| MK | UF* | PES | 30,000 |
| MQ | UF* | PES | 50,000 |
| LY | UF* | PES | 100,000 |
| LV | UF* | PES | 200,000 |
| LX | UF* | PES | 300,000 |
| PZ | UF | PAN | 30,000 |
| PY | UF | PAN | 100,000 |
| PX | UF | PAN | 400,000 |
| V3 | UF*1 | PVDF | 30,000 |
| V4 | UF*1 | PVDF | 70,000 |
| V5 | UF*1 | PVDF | 200,000 |
| V6 | UF*1 | PVDF | 500,000 |
| V7 | UF*1 | PVDF | 800,000 |
| BN | UF* | PVDF | 50,000 |
| BY | UF* | PVDF | 100,000 |
| BX | UF* | PVDF | 250,000 |
| A6 | UF* | PVDF | 500,000 |
*MAX (High Temperature/High pH) Models Also Available
1Only Available In Industrial Grade
Microfiltration Flat Sheet Membranes
We offer Synder Brands a comprehensive selection of flat sheet Microfiltration membranes, encompassing all available membrane types. While our standard sizes include 12″ x 12″ and 1m x 1m, we also accommodate custom sizes and flat sheet rolls upon request. These flat sheet membranes are often procured for small-scale lab testing, facilitating the determination of the most suitable cut-off for each specific application due to their ease of installation and compatibility with various test units.
Microfiltration membranes feature a molecular weight cut-off range of 0.08 to 0.2 microns, enabling the selective rejection of large macromolecules. This capability proves invaluable in applications such as fat and microbe separation within the dairy industry.
In scenarios involving high solids content, flat sheet microfiltration membranes demonstrate exceptional performance and longevity, offering a favorable balance between membrane life and operational cost. Distinguished by their robust support material, flat sheet membranes boast enhanced physical durability compared to hollow fiber counterparts.
Synder Filtration proudly presents a comprehensive range of both dry and wet microfiltration flat sheet membranes. With product sizes ranging from a single square foot to tens of thousands of linear feet, our membranes cater to diverse needs, spanning from process research and pilot testing to spiral element winding and integration into plate & frame membrane systems.
| Membrane | Type | Material | Molecular Weight Cut-Off |
| FR | MF | PVDF | 800 000 |
| V0.1 | MF | PVDF | 0.1μ |
| V0.2 | MF | PVDF | 0.2μ |
