With many years of experience in PVC compounding equipment manufacturing, Dahan has supplied high-speed mixers to 500+ PVC pipe, profile, and sheet production lines across Southeast Asia, the Middle East, and South America. Our SHR series mixers are engineered based on real-world production feedback from PVC compounders, ensuring reliable performance in 24/7 industrial environments.
PVC Plastic High Speed Mixer is the core equipment for PVC dry blend production. It utilizes high-speed friction to achieve rapid and uniform mixing, ensuring optimal plasticizing effect for downstream extrusion or injection molding processes.
The PVC plastic high speed mixer features fast mixing speed and high mixing uniformity, utilizing material self-friction heating to achieve automatic pre-plasticization. The machine has a compact structure, low energy consumption, excellent dustproof sealing, stable operation with low noise, and simple and durable maintenance.
Compared to conventional mixers, this PVC plastic high speed mixer features a unique impeller design and thermal management system, reducing mixing cycle time by up to 30% while maintaining batch-to-batch consistency.
Rapid Mixing: Through high-speed mixing, PVC resin and additives can be quickly and uniformly mixed together, thereby improving mixing efficiency.For example, a standard PVC dry blend formulation can be mixed within 6–10 minutes per batch, depending on the specific recipe.
Uniform Distribution: The design and rotation of the agitator ensure the uniform distribution of various components in the PVC mixture, thereby improving product quality.Batch-to-batch uniformity deviation is controlled within ±2%, verified through regular production quality testing.
Easy Operation: The equipment has a simple structure, is easy to operate, and is easy to control and maintain.The control panel features an intuitive HMI interface, allowing operators to set mixing time, temperature, and speed with minimal training.
Reduced Labor: The product supports 24-hour uninterrupted operation and can easily adapt to the normal operation of a production line.With automatic temperature control and timed discharge, one operator can manage 3–4 units simultaneously.
The PVC Plastic High Speed Mixer features a compact and rational design, primarily composed of a mixing host, transmission system, unloading mechanism, and electrical control system.
Mixing Host: Includes the mixing chamber and specially designed impeller blades that create optimal material flow patterns.
Transmission System: Motor provides the power source, driving the equipment at high speed through a belt or gear drive.
Unloading Mechanism:Pneumatic or manual discharge system for efficient material transfer to downstream equipment.
Electrical Control System: Manages equipment start-up, shutdown, and various operating parameters including mixing time, temperature setpoints, and speed control.
All components are neatly arranged and operate seamlessly together, supported by a sturdy frame for reliable machine support. The machine is easy to assemble and disassemble, and simple to maintain, continuously achieving high-speed mixing and uniform blending of materials to meet the batching production needs of the PVC processing industry.
The PVC plastic high speed mixer operates on the principle of high-speed friction heating. The impeller rotates at 750–1,500 RPM (depending on the model), creating intense mechanical friction between PVC resin particles. This friction generates heat that raises the material temperature to approximately 110–130°C — the optimal range for PVC pre-plasticization.
The mixing process follows three distinct stages:
The unique impeller geometry — with both bottom and side mixing blades — ensures that materials at the bottom of the mixing chamber are continuously lifted and re-circulated, preventing dead zones and ensuring consistent batch quality.
The SHR series offers a range of capacities from laboratory-scale (10L) to high-volume production (1500L). Below are the standard specifications. Custom configurations — including special motor power, heating methods, and discharge systems — are available upon request.
| Model | Volume (L) | Effective Volume (L) | Motor Power (kW) | Discharging Method | Heating Method |
|---|---|---|---|---|---|
| SHR-10 | 10 | 7 | 3 | Manual | Self Friction or Electric |
| SHR-50 | 50 | 35 | 7/11 | Manual | Self Friction or Electric |
| SHR-100 | 100 | 70 | 11/22 | Pneumatic | Self Friction or Electric |
| SHR-300 | 300 | 210 | 40/55 | Pneumatic | Self Friction or Electric |
| SHR-500 | 500 | 350 | 55/75 | Pneumatic | Self Friction or Electric |
| SHR-1000 | 1000 | 700 | 110/160 | Pneumatic | Self Friction or Electric |
| SHR-1500 | 1500 | 1050 | 220 | Pneumatic | Self Friction or Electric |
Selection Note: For PVC pipe production lines with an output of 200–300 kg/h, the SHR-300 model is typically recommended. For profile extrusion lines, the SHR-500 or SHR-1000 is often selected depending on line speed. For laboratory or small-batch production, the SHR-10 or SHR-50 is ideal.
The PVC Plastic High Speed Mixer is an essential piece of equipment in the plastics processing industry. It is mainly used for the rapid mixing, uniform blending, and pre-plasticization of PVC resin powder with stabilizers, lubricants, color masterbatches, and fillers.
Specific applications include:
For each application, Dahan can adjust impeller design, heating profile, and discharge mechanism to match specific material requirements.
Choosing the right PVC plastic high speed mixer manufacturer is critical for your production efficiency and product quality. At Dahan, we combine deep industry expertise, proven manufacturing experience, and a customer-centric approach to deliver reliable PVC dry blend mixer solutions that meet your specific production needs. Here's why customers around the world trust Dahan:
Q: What is the typical mixing cycle time for PVC dry blend?
A: For most standard PVC formulations, the mixing cycle ranges from 6 to 12 minutes per batch, depending on the recipe, target temperature, and batch size. A normal cycle for 30-50 PHR DOP runs 8–11 minutes.
Q: What heating method should I choose — self-friction or electric heating?
A: Self-friction heating is sufficient for most standard PVC formulations and offers significant energy savings — the mechanical friction during high-speed mixing generates the required heat naturally. Electric heating is recommended for formulations that require precise temperature control or when processing heat-sensitive additives. Both options are available across the SHR series.
Q: How do I select the right model for my production line?
A: Model selection depends on your hourly production target. As a rule of thumb: SHR-300 supports 150–250 kg/h, SHR-500 supports 300–450 kg/h, and SHR-1000 supports 600–900 kg/h. For single-batch production, calculate the required effective volume based on your batch weight and material density. Contact us with your specific requirements for a precise recommendation.
Q: What maintenance is required for the PVC high speed mixer?
A: Regular maintenance includes: checking bearing temperature and lubricating with lithium-based grease; inspecting seal integrity and V-belt tension; cleaning the mixing chamber interior after each use; and performing a full machine overhaul every six months. We provide a detailed maintenance schedule with each machine.
Q: What is the difference between a high-speed mixer and a low-speed mixer for PVC?
A: A high-speed mixer typically operates above 1,000 RPM and generates heat through friction to pre-plasticize PVC compounds, achieving mixing in 6–12 minutes. A low-speed mixer operates below 1,000 RPM and is primarily used for cooling or gentle blending — it cannot achieve the rapid temperature rise required for PVC pre-plasticization. Many PVC production lines use a combination of both: hot mixing in a high-speed mixer, followed by cooling in a low-speed cooling mixer.
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