

SHR-300A PVC High Speed Mixer: The Versatile Solution for All Plastic Modification & Extrusion
In the plastic processing industry, a reliable mixing machine is the backbone of efficient production. The SHR-300A PVC High Speed Mixer stands out as a “universal model”—engineered to excel in plastic modification, granulation, color mixing, and PVC extrusion. This article explores its core features, wide-ranging applications, and why it’s the go-to choice for businesses seeking versatility and performance in one machine.
What Is the SHR-300A PVC High Speed Mixer?
The SHR-300A is a high-performance mixing equipment designed primarily for PVC (Polyvinyl Chloride) and a wide range of plastic materials. Its robust construction and advanced technology make it far more than a specialized PVC mixer—it adapts seamlessly to almost all plastic modification and extrusion-related tasks. Whether you’re blending raw resin, modifying polymers, or preparing color masterbatches, this machine delivers consistent, high-quality results.
Core Features of the SHR-300A PVC High Speed Mixer
Every feature of the SHR-300A is tailored to solve common challenges in plastic mixing, from efficiency and material purity to energy costs and operational flexibility.
1. High-Speed Mixing for Uniform & Efficient Blending
The mixer is equipped with a precision-engineered impeller that enables high-speed stirring (up to 1,500 RPM). This creates a powerful vortex, ensuring that plastic resins, additives, fillers, and pigments are thoroughly mixed in a fraction of the time required by standard mixers.
- Benefit: Reduces batch mixing time by 25-35%, boosting overall production throughput while eliminating uneven blending—a critical factor for consistent product quality.
2. Stainless Steel Material Contact Surfaces for Purity
All components that come into direct contact with materials are made of 304 stainless steel. This material is corrosion-resistant, non-reactive, and easy to clean, making it ideal for sensitive applications.
- Benefit: Prevents material contamination (essential for food-grade or medical plastics) and avoids residue buildup, reducing waste and simplifying post-mixing cleanup.
3. Permanent Magnet Synchronous Motor for Energy Savings
Powered by a permanent magnet synchronous motor (PMSM), the SHR-300A outperforms traditional asynchronous motors in both efficiency and durability.
- Energy Efficiency: Cuts electricity consumption by 15-25% compared to equivalent mixers, thanks to lower energy loss and a higher power factor (over 0.95).
- Longevity: Generates less heat and mechanical wear, extending the motor’s lifespan and minimizing unplanned downtime for repairs.
4. Variable Frequency Control for Flexible Speed Adjustment
The mixer uses variable frequency drive (VFD) technology, allowing stepless speed regulation from 300 to 1,500 RPM.
- Adaptability: Adjust speed to match different materials and processes—e.g., slower speeds for high-filler plastic modification, faster speeds for pigment dispersion.
- Smooth Operation: Reduces startup shock and current overload, protecting both the machine and the production line from damage.
Wide-Ranging Applications: Why It’s a “Universal Model”
The SHR-300A is not just a PVC mixer—it’s a versatile workhorse for nearly all plastic modification and extrusion industries. Its adaptability makes it a “one-machine solution” for multiple production needs:
1. Plastic Modification & Granulation
Ideal for blending plastic resins (PE, PP, ABS, as well as PVC) with additives, reinforcing agents (glass fiber), or flame retardants. It ensures uniform dispersion of modifiers, laying the foundation for high-quality modified plastic granules.
2. Color Masterbatch & Pigment Mixing
Achieves precise and consistent color dispersion for color masterbatches. The high-speed vortex ensures pigments are evenly distributed in the carrier resin, preventing color streaks or spots in the final product.
3. Pigment Mixing & Color Changing
Simplifies color switching for plastic products. The stainless steel surfaces and efficient mixing reduce pigment residue, making it easy to transition between different colors without cross-contamination.
4. PVC Resin Powder Extrusion Preparation
Perfect for pre-mixing PVC resin powder with plasticizers, stabilizers, and lubricants before extrusion. The uniform blend ensures smooth extrusion, reducing defects in PVC pipes, profiles, films, and sheets.
In short, the SHR-300A lives up to its reputation as a universal model—it adapts to every stage of plastic processing, from raw material preparation to modified granulation and extrusion pre-treatment.
SHR-300A vs. Traditional Plastic Mixers
To highlight its advantages, here’s a direct comparison with traditional mixing equipment:
| Feature | SHR-300A PVC High Speed Mixer | Traditional Plastic Mixers |
|---|---|---|
| Motor Type | Permanent Magnet Synchronous Motor | Asynchronous Motor |
| Energy Savings | 15-25% electricity reduction | High energy consumption |
| Material Contact | 304 Stainless Steel | Carbon Steel (prone to rust/residue) |
| Speed Control | Variable Frequency (Stepless) | Fixed or Step-Speed Adjustment |
| Application Range | Universal (all plastic modification/extrusion) | Specialized (limited to 1-2 tasks) |
| Mixing Uniformity | High (vortex mixing) | Moderate (risk of uneven dispersion) |
FAQs About the SHR-300A PVC High Speed Mixer
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Can the SHR-300A handle non-PVC plastics?
Yes. It works with all common plastics, including PE, PP, ABS, and nylon, making it suitable for diverse plastic modification needs.
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What is the mixing capacity of the SHR-300A?
Its standard capacity is 300 liters, ideal for batch production. Custom capacities are available for large-scale factories.
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How often does it require maintenance?
Minimal maintenance is needed. The stainless steel surfaces are easy to clean, and the PMSM motor has fewer moving parts, reducing wear. Routine lubrication of the impeller is the main upkeep task.
Why Choose the SHR-300A PVC High Speed Mixer?
The SHR-300A combines versatility, efficiency, and cost savings—three key factors for success in plastic processing. Its “universal model” design eliminates the need for multiple specialized mixers, saving factory space and equipment investment. Additionally, its energy-efficient motor and high-speed mixing cut operational costs while ensuring product quality.
For businesses looking to streamline their plastic modification and extrusion processes, the SHR-300A is a smart, future-proof investment.









