Non Woven Bag Shredder Machine for PP Fabric Recycling

They are fully recyclable — non-woven bags are spunbond polypropylene, a thermoplastic, even though they feel like cloth. Once shredded and densified, the material melts and pelletizes like any other PP and goes back into molded products, sheets and general-purpose PP applications. The catch is form, not chemistry: loose bags are too light and tangly for recyclers to handle economically, which is why shredding is the first processing step in every non-woven recycling line.

Because fabric does not behave like rigid plastic. In a high-speed blade grinder, light fabric tends to ride above the blades, wrap around the rotor and choke the screen instead of cutting cleanly. A dual shaft shredder works at low speed and high torque: two counter-rotating shafts with interlocked blades grip the fabric and tear it through, so bags cannot wrap or float. That is why Raj Electricals builds its non-woven bags shredder on a dual shaft platform.

Four streams, mainly: side trims and punch-outs from the cutting table, roll ends too short to convert, printing rejects and colour-changeover fabric, and stitched bags that fail inspection. To these, traders and retailers add unsold or non-compliant bag stock following the GSM norms under the Plastic Waste Management Rules. All of it is the same spunbond PP and can run through the same shredder — only laminated or heavily printed fabric is worth keeping as a separate lot, since buyers price it differently.

A dual shaft machine produces shredded fabric strips of uneven size — compact enough to bag, store and transport sensibly. Buyers are PP recyclers who densify or agglomerate the shredded fabric and then pelletize it into reprocessed PP granules. If your buyer asks for a finer, more uniform feed, a second-stage pass through an RE-series plastic grinder sizes the material through a screened mesh before densification — we recommend confirming the two-stage setup on your own material at a trial.

Mechanically, printed and laminated bags shred the same way — the dual shaft does not care about ink or a thin lamination layer. The difference shows up downstream: laminated fabric and heavy print loads affect the colour and purity of the recycled PP granule, so recyclers usually pay less for those lots and process them separately. Our advice is to sort laminated bags into their own stream before shredding, and to bring representative samples of each stream to a trial so the output is judged on what you actually process.

Every machine is quoted to the job. What moves the number is capacity, throat size, motor rating, MS or SS construction and the automation you add — a blower, a conveyor, a control panel. Our guide to what drives machine cost walks through each of those; send us your material and daily volume and we will size the machine and quote it, usually the same day.

Yes — we ask for it. Because non-woven behaviour varies with GSM, lamination and how the waste arrives (loose bags versus roll ends), we run a sample of your actual material at our Andheri East, Mumbai works before finalising the machine configuration. You see the feeding behaviour, throughput and output strip size on your own waste, and we use the same trial to size the machine and quote. Contact us to book a trial slot.