SJL-300 Intelligent Stable Underwater Pelletizing Equipment Description

The SJL-300 is a high-performance underwater pelletizing equipment engineered for intelligent, stable, and efficient polymer processing. Integrating advanced automation technology with precision cutting systems, it is designed to convert molten thermoplastic materials into uniform, high-quality pellets in a continuous, water-cooled process. With a focus on reliability and productivity, the SJL-300 balances high throughput with consistent pellet quality, making it suitable for large-scale production lines in the plastic processing industry.

SJL-300 Intelligent Stable Underwater Pelletizing Equipment Functions

1.Intelligent Control System: Equipped with a programmable logic controller (PLC) and touchscreen interface, it enables real-time monitoring and adjustment of key parameters (e.g., cutter speed, water temperature, throughput). Automated alerts for faults (e.g., blockages, temperature anomalies) ensure minimal downtime.

2.Precision Cutting: High-speed cutter (adjustable up to 3,000 rpm) with hydraulic feeding ensures uniform pellet size (tolerance within ±0.1 mm), supporting both standard round pellets and customized shapes.

3.Closed-Loop Water Circulation: Integrated cooling and filtration system (including self-cleaning filters) maintains stable water temperature (±2℃) and removes impurities, ensuring efficient cooling and reducing water consumption by over 80%.

4.High-Efficiency Dehydration: Centrifugal dehydrator with a powerful motor (18.5 kw) achieves low moisture content in finished pellets (≤0.1%), eliminating the need for secondary drying.

SJL-300 Intelligent Stable Underwater Pelletizing Equipment Applications

The SJL-300 is widely used in industrial scenarios requiring high-quality pellet production, such as:

1.Plastic compounding (e.g., modified plastics, color masterbatches).

2.Recycling of post-consumer or industrial plastic waste.

3.Production of raw material pellets for injection molding, blow molding, or film extrusion.

SJL-300 Intelligent Stable Underwater Pelletizing Equipment Working Principle

1.Melting & Extrusion: Molten polymer is fed into the SJL-300’s die head via an extruder, where it is forced through small holes to form continuous strands.

2.Underwater Cutting: As the strands exit the die head, they enter a water-filled cutting chamber, where a high-speed rotating cutter severs them into pellets. The water instantly cools the pellets to prevent sticking or deformation.

3.Separation & Dehydration: The pellet-water mixture is transported to a centrifugal dehydrator, which separates pellets from water.

4.Water Recirculation: The separated water is filtered, cooled, and recycled back to the cutting chamber, ensuring energy and resource efficiency.

Suitable Materials

The SJL-300 is compatible with all thermoplastic polymers, including:

Product Advantages

1.High Efficiency: Supports a large throughput range (adaptable to 10-20 tons/hour) for continuous, large-scale production.

2.Stable Performance: Modular design and robust components minimize breakdowns, ensuring long-term, consistent operation.

3.Superior Pellet Quality: Uniform size, smooth surface, and low moisture content enhance pellet flowability and processability in downstream applications.

4.Energy & Cost Savings: Closed-loop water circulation and energy-efficient motors (e.g., 37-45 kw cutter motor) reduce utility costs.

5.Low Noise & Emissions: Enclosed design minimizes steam release and operational noise, improving workplace safety and comfort.

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