The PNMP PVC scrap pulverizer is configured for processing PVC manufacturing waste: pipe cut-offs, profile trimmings, injection rejects, PVC board offcuts, and mixed rigid PVC scrap from production lines. Input material is typically pre-crushed to 10–30 mm before entering the turbo-blade grinding chamber, where adjustable static and rotary blades reduce it to fine powder in the 15–100 mesh range. Output powder is suitable for direct reintroduction into PVC extrusion, compounding, or pipe production — closing the material loop within the same facility.

PVC Scrap Pulverizer Application Areas:

PVC scrap pulverisers are used at two points in the production chain. The first is in-process recycling: pipe extrusion lines, profile manufacturers, and PVC board fabricators generate consistent volumes of dimensional offcuts and rejected pieces that can be pulverised and reintroduced as a percentage of the primary compound mix. The second is post-collection recycling: facilities receiving mixed PVC scrap from external sources use the PNMP to produce powder for resale to compounders or for use in lower-specification applications such as PVC foam board or agricultural pipe.

In both cases, the input material must be pre-crushed to a feedable size before entering the PNMP. For bulk pipe sections or large profile offcuts, a primary shredder or granulator upstream of the pulveriser is required.

PVC Scrap Pulverizer Description：

This PNMP PVC plastic pulverizer is chiefly designed to grind PVC. The pulverizer uses turbo-type blade. The static blade and rotary blade could be adjusted, thus you can get different size of PVC powder with one grinder. High output, low energy consumption and long lifespan attract many customers around the world. It can be used for PVC plastic from PVC pipe/profile/soft sheet/bottle/card from low to moderate hardness PVC.
The output of our PNMP pulverizer can reach 100-900kg/h (15-100mesh).

Working Principle of PVC Scrap Pulverizer:

TPre-crushed PVC scrap (typically 10–30 mm granules or fragments) is fed into the grinding chamber via a vibrating loader at a controlled rate. Inside the chamber, high-speed rotating blades work against fixed stator blades to shear and grind the scrap into fine powder. Ground particles are pneumatically conveyed through 304 stainless steel ducting to a cyclone separator, then classified by a vibrating screen. Particles meeting the target mesh size discharge to the collection bin; oversized particles are automatically returned to the disc for re-grinding. Blade gap adjustment (via feeler gauge and adjusting bolt) controls output fineness between 15 and 100 mesh without stopping the machine.

PVC Scrap Pulverizer Technical Features:

• Handles pre-crushed PVC scrap directly — accepts granulated or shredded rigid and semi-rigid PVC fragments (10–30 mm) from pipe, profile, board, and injection-moulded scrap without additional pre-processing beyond primary crushing.
• Adjustable output fineness (15–100 mesh) — blade gap tunable during operation via feeler gauge; no disc removal required when switching between scrap grades or target powder specifications.
• Closed-loop grinding and classification — integrated vibrating screen returns oversize particles to the disc automatically, ensuring consistent powder size distribution from variable-quality scrap input.
• 304 stainless steel conveying — prevents rust contamination in the recycled powder stream, maintaining powder purity for reintroduction into PVC production compounds.
• Dual water-and-air cooling — keeps processing temperature within safe limits during continuous scrap processing runs.
• SKF bearings, Siemens motor — standard specification; reduces unplanned maintenance in continuous recycling operations.

PVC Scrap Pulverizer Components:

Vibration Loader Feeds pre-crushed PVC scrap fragments into the grinding chamber at a metered rate. Consistent feed prevents surge loading on the disc during batch processing of mixed-size scrap input.	PVC Pulverizer Disc Turbo-type disc with adjustable blade gap handles rigid and semi-rigid PVC scrap from 15 to 100 mesh output. The same disc configuration covers pipe offcuts, profile trimmings, and injection-moulded rejects without hardware changes.
PVC Pulverizer Blade D2 or SKD-11 steel. For mixed rigid PVC scrap containing occasional thick-wall pipe sections, SKD-11 is recommended for its higher wear resistance. Replaceable through the front service door.	Conveying pipe : 304 stainless steel throughout, double-layer with water cooling. Prevents iron contamination in the recycled powder stream — important when output is reintroduced into white or light-coloured PVC formulations.
Vibrating Screen Real-time classification returns oversize scrap fragments to the disc automatically. Screen mesh is interchangeable to adjust output fineness between production runs.	Intelligent Control PLC panel with fault detection. On overload or temperature exceedance, the machine halts and displays an error code — reducing unplanned downtime when processing variable-quality scrap input.
Bags Type Dust Catcher Standard dust control for single-unit installations. Pulse dust collector upgrade available for higher-throughput or enclosed workshop environments.	Pulse Dust Collecter(Optional) Recommended for facilities processing scrap with higher surface contamination or fines content, which generates greater dust load during grinding.

PVC Scrap Pulverizer Optional Components:

Frequently Asked Questions

Does PVC scrap need to be pre-crushed before entering the pulverizer?

Yes. The PNMP grinding chamber is designed for granule-sized input (typically 10–30 mm). Large pipe sections, thick profile offcuts, or sheet pieces need to be reduced by a primary shredder or granulator before entering the pulveriser. Feeding oversized scrap directly risks disc overload and accelerated blade wear. For facilities without existing primary crushing equipment, WANROOETECH can supply a matched shredder or granulator as part of a complete scrap recycling line.

Can the output powder be reintroduced directly into PVC production?

PVC powder produced at 40–60 mesh from clean, single-grade scrap (e.g. UPVC pipe offcuts) can typically be reintroduced as a secondary component in PVC pipe or profile extrusion compounds at proportions determined by the formulation. Mixed-grade or contaminated scrap may require additional sorting before pulverising to maintain output powder consistency. Processors supplying powder to external compounders should verify the accepted powder specification with their buyer before configuring the target mesh size.

What is the difference between this machine and the standard PNMP PVC pulverizer?

The machine specification is identical — both use the PNMP turbo-blade disc series (PNMP-500 through PNMP-1000, 100–900 kg/h, 15–100 mesh). The distinction is in the application: the standard PVC pulverizer page covers material-by-material selection (pipe, profile, soft sheet); this configuration is optimised for scrap and waste processing workflows where input material is variable in size, grade, and surface condition, and where pre-crushing upstream is a standard part of the process.

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