Stop wasting money on virgin material. The SMF Series Fully Automatic PVC Pulverizer converts coarse regrind into high-quality, free-flowing powder (20-80 mesh) that can be reused directly in your extrusion line up to 100%.
Crushing scrap pipes creates “flakes” (8-12mm). While flakes are useful, they cannot be used in all extrusion processes, especially for high-quality pipes or profiles where surface finish is critical. Flakes often cause uneven melting or rough surfaces.
To maximize your scrap value, you need to grind it down to the same consistency as virgin resin. Our Fully Automatic PVC Pulverizer (also known as a Plastic Miller) is designed specifically for heat-sensitive Rigid PVC.
Why Choose the SMF Series Pulverizer?
PVC degrades if overheated. Our machine uses both Water Cooling (jacketed housing) and Air Cooling to keep the grinding chamber temperature low, preventing material discoloration.
Adjustable gap between rotary and fixed knives allows you to precisely control the mesh size (20-80 mesh). The vibrating sieve automatically returns coarse particles for re-grinding.
Equipped with a PLC and Vibro-feeder. The system monitors the main motor amp load and automatically adjusts the feeding speed to prevent overloading.
How It Works: The Process Flow
The transition from “Waste” to “Resource” happens in a closed-loop system:
- Feeding: PVC flakes are fed into the hopper via a vibro-feeder.
- Milling: A high-speed rotor (disc type) grinds the material against fixed toothed plates. The friction creates the powder.
- Cooling: A water jacket circulates around the chamber to absorb heat instantly.
- Screening: A vacuum loader pulls the powder to a cyclone separator and a vibrating sieve.
- Recirculation: Fine powder goes to the silo; coarse powder returns to the mill automatically.
Technical Specifications
Select the model based on your required throughput capacity (kg/h).
| Model | Disc Diameter | Motor Power (kW) | Capacity (kg/h)* | Mesh Size |
|---|---|---|---|---|
| SMF-500 | 500 mm | 37 – 45 kW | 150 – 250 kg/h | 20 – 80 Mesh |
| SMF-600 | 600 mm | 55 – 75 kW | 300 – 450 kg/h | 20 – 80 Mesh |
| SMF-800 | 800 mm | 75 – 90 kW | 500 – 800 kg/h | 20 – 80 Mesh |
*Capacity depends on the material formulation (CaCO3 percentage) and required mesh size. Higher calcium content is easier to grind.
Long-Life Grinding Discs
The heart of a pulverizer is the grinding disc. We use SKD-11 or D2 high-quality alloy steel for our blades.
Unlike standard crushers that need sharpening weekly, our pulverizer discs typically last 4-6 months (depending on throughput) before needing re-sharpening. When they do wear out, they can be re-sharpened multiple times to extend service life.
Frequently Asked Questions
Rigid PVC is heat-sensitive. Without water cooling, the friction heat from grinding would cause the powder to melt or turn yellow/black, ruining the material quality.
For standard PVC pipes, 30-60 mesh is common. For profiles or more delicate extrusions, 60-80 mesh is preferred to ensure a smooth surface finish.
No. This model (SMF Series) is specifically designed for Rigid PVC (uPVC). Soft PVC requires a different type of cryogenic grinding system.
Get High-Quality Powder Today
Ready to turn your scrap into valuable raw material? Send us your capacity requirements and target mesh size.
We offer:
- ✔ Free Testing Video
- ✔ Layout Design
- ✔ 12-Month Warranty
