PVC Pipe Shredder & Grinder Machine for Recycling

PVC starts to degrade at much lower temperatures than PE or PP. When friction in a fast cutting chamber heats it past its stability limit, the material discolours (white pipe regrind turning yellow or brown is the classic symptom), loses mechanical properties, and releases hydrogen chloride — a corrosive gas that is bad for operators and eats the machine’s own steel. A slow-speed shredder like the S3-600, with its 80 rpm rotor, cuts with torque rather than speed, so very little frictional heat enters the material. The regrind stays white and saleable.

Yes — a well-established one. Clean, single-source rigid PVC regrind is bought by pipe and profile extruders, fitting molders, and manufacturers of flooring, garden hoses and cable trunking, where it blends with virgin compound or runs in inner/middle layers. The discounts come from contamination: rubber gasket fragments, CPVC mixed in, or heat-degraded brown regrind all push material down to the lowest-grade applications. Good segregation plus low-heat processing is what keeps PVC regrind in the higher price band.

They are pre-cut into sections that fit the S3-600’s 600 × 1000 mm side-feeding hopper — most plants use a circular saw or band saw station beside the shredder. Cutting is quick on PVC and lets the shredder work at its rated 300–500 kg/hr instead of fighting awkward lengths. Fittings, profiles and extrusion lumps usually go in without pre-cutting. If most of your volume is long pipe, plan the saw station into your layout from day one.

It depends on your output requirement. If your buyer accepts coarse shred — common when selling to a larger recycler who does their own granulation — the S3-600 alone is enough. If you sell direct to extruders or reuse the material in-house, you need uniform granules, which means adding an RE-series grinder as a second stage. Thin-wall PVC items in small volumes can sometimes go straight to a grinder, but thick-wall pipe should always see the single shaft shredder first.

Rigid PVC, especially filled uPVC, generates fine dust during granulation. Practical measures: keep blades sharp (dull blades rub and powder the material instead of cutting it), screen the regrind so fines are separated from the saleable fraction, give the grinder area ventilation or a dust collection point, and provide operators with masks. The slow primary shredding stage itself produces little dust — it is the high-speed granulation step that needs the housekeeping.

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.

Calcium-carbonate-filled uPVC is more abrasive than unfilled plastic, so expect shorter sharpening intervals than you would see on PE or PP — the exact interval depends on your running hours and filler loading. The S3-600’s blades are hardened tool steel and both machines use removable blades designed for periodic resharpening rather than replacement, which keeps running costs sensible. We supply spare blade sets and support resharpening through our Mumbai works.

Yes. Bring representative samples — your thickest-wall pipe, your fittings, your extrusion lumps — to our works in Andheri East, Mumbai, and we will run them through the machine so you can verify throughput and output size on your actual material, not a brochure number. Contact us to book a trial slot; outstation buyers can request a recorded video trial.