WR Series: Dual-Disc Plastic Pulverizer

Wanrooe WR series pulverizers use a dual grinding disc design — one primary disc for coarse reduction, one secondary disc for fines grinding — to achieve up to double the throughput of comparable single-disc systems. Integrated PLC controls and a touchscreen HMI interface ensure consistent output quality with minimal operator intervention. Key performance gains include 50% energy savings versus conventional water-cooled units, lower maintenance costs, extended disc life, and reduced transport costs due to higher in-line capacity. Processes PP, PE, ABS, PVC, PET, EVA, LDPE, and other thermoplastics.

How It Works

Material feeds centrally between a fixed disc and a high-speed rotating disc. Centrifugal force carries the material through the grinding zone, where it is pulverized by impact and shear between the discs. Ground powder discharges pneumatically. Automatic temperature control prevents heat buildup that would degrade heat-sensitive polymers.

Key Advantages

Dual grinding discs — Primary disc for coarse grinding, secondary disc for fines. Higher output than single-disc machines of comparable size.

Large vibrating screen — Up to 5 square meters of screen area. Material exits faster, reducing residence time and improving cooling efficiency.

Adjustable cutting gap — Simple mechanism to set disc spacing for different material types and target fineness.

Low power, high throughput — Energy-efficient drive design delivers more powder per kilowatt-hour.

Compact footprint — High production capacity in a small floor space.

Easy temperature control — Prevents thermal degradation of heat-sensitive plastics.

Optional PLC touchscreen — Full automation with recipe storage, alarm logging, and remote monitoring capability.

Request Information

Contact us with your material type, target powder fineness (mesh size), and required hourly capacity. Our engineering team will confirm disc configuration, motor sizing, and cooling requirements for your specific application.

FAQ: WR Series Pulverizer

What is the difference between single disc and dual disc pulverizers?

Single disc machines grind in one pass. Dual disc machines use a primary disc for coarse reduction and a secondary disc for fine grinding, effectively doubling throughput without increasing machine size. The second disc also improves particle size uniformity.

How do I control output fineness?

By adjusting the cutting gap between discs and changing the screen mesh size. Smaller gaps and finer screens produce higher mesh powder. The PLC system stores recipes for quick changeover between product specifications.

What maintenance does the grinding disc require?

Discs are wear parts that require periodic resurfacing or replacement depending on material abrasiveness and operating hours. The WR series design allows faster disc change than conventional units, minimizing downtime.