Pharma API & Agro Filtration Solutions
Centrifuge bags and Nutsche cloths made for your API isolation, engineered for yield, purity and clean discharge.
A Hard-Won Batch,
One Filtration Step.
API and agro-technical isolation turns a hard-won batch into saleable product in a single filtration step. DFR Technical Textiles makes centrifuge bags, Nutsche cloths and press cloths to your equipment drawing, holding fines, shedding no fibre and standing up to the solvent system, so yield, purity and cycle time all move the right way.
Holds Fines, Protects Yield
Low Fibre Shedding
Made to Your Basket Drawing
Solvent-Resistant Polymers
Three Problems
We Are Asked to Fix.
Fines passing through into the mother liquor
How our cloth helps
Weave density and finish are chosen for your crystal size distribution, so fines stay in the cake and yield stays in the batch, without sacrificing drain time.
Loose threads or fibre shedding
How our cloth helps
Heat-sealed cut edges, lock-stitched seams and low-shed monofilament faces keep fibres out of the product: a cleaner cake and fewer foreign-particle deviations.
Poor fit, solvent attack on the bag
How our cloth helps
Bags are patterned to your basket drawing and made in PP, polyester or polyamide to match the solvent system, so they seat flat, last longer and release evenly.
Where DFR
Adds Value.
Our cloths and bags work at the isolation step, where yield and purity are fixed for the batch.
Reaction
Synthesis in a solvent or aqueous medium in the reactor.
Crystallisation
Product is crystallised by cooling, anti-solvent or pH shift.
Centrifuge / Nutsche
DFR bags and cloths hold the crystals and drain the mother liquor.
Cake Wash
Uniform wash flow strips residual solvent and impurities.
Drying & Milling
Wet cake is dried and milled to specification.
Three Filtration Duties
Centrifuge Bags
Peeler, pusher & basket centrifuges
- Patterned to your basket drawing
- PP, polyester or polyamide to suit the solvent
- Lock-stitched, heat-sealed seams
- Low-shed monofilament face
- Even cake, clean peel
Nutsche / ANFD Cloths
Agitated Nutsche filter dryers
- Sealed-edge discs cut to diameter
- Reinforced bolt and clamp zone
- Stable pore size through heat cycles
- High-clarity mother liquor
- Long life under the agitator sweep
Carbon & Catalyst Cloths
Sparklers, presses and leaf filters
- Tight multifilament for fine carbon
- Complete catalyst recovery
- Bright, haze-free filtrate
- Pre-coat compatible
- Quick changeover between batches
Cut, Stitched & Sealed In-House,
to Your Basket or Filter Drawing.
Centrifuge Bags to Your Basket Size
Peeler, pusher and basket types in PP, PET or PA, with or without top ring and hold-down.
Filtration made-upsNutsche / ANFD Filter Cloths
Sealed-edge discs with a reinforced fixing zone, to diameter and bolt pattern.
Filtration made-upsCarbon & Catalyst Filter Cloths
Tight multifilament for fine carbon and catalyst recovery on presses and sparklers.
Filtration fabricsFilter Press Cloths for Intermediates
Smooth-face PP cloths for the earlier isolation steps in the same train.
Filter press clothsAvailable Fabric Configurations
Polypropylene (PP)
For aqueous, acid and alkali isolations
Polyester (PET)
Hot filtrations and dimensional stability
Polyamide (PA)
Aromatic and chlorinated solvent duties
Monofilament
Low shedding and easy discharge
Multifilament
Retains fine crystals and carbon
Why Choose DFR Bags & Cloths
for API & Agro-Technical Isolation?
Yield Protection
Weave selected for your crystal size, so fines stay in the cake.
Low Fibre Shedding
Sealed edges and low-shed faces keep fibres out of the product.
Fit to Drawing
Bags and discs patterned to your basket or filter, every time.
Solvent Resistance
PP, PET and PA matched to your solvent system.
Woven & Stitched In-House
Yarn to finished cloth in one facility in Gujarat, supplying API and agro-technical plants.
Fast Delivery
Standard sizes from stock; custom bags and discs cut to your drawing.
Yield in the cake.
Nothing in the product.
Send us your centrifuge or filter type with the basket or disc drawing, the solvent system and temperature, and your crystal size. We will propose a bag or cloth construction for it.