HighSPD Series Powers Precision Flow Control for Plastic Injection Molding

The Application

In modern plastic injection molding plants, raw material delivery must be precisely timed and accurately dosed to maintain consistency in product quality. Pneumatic conveying and blending systems are commonly used to transport plastic pellets or powders from storage silos to dryers, hoppers, and molding machines. These systems rely on fast-acting valves to open and close at exact intervals, enabling the accurate blending of additives and base resins in real time.

In such operations, even small delays or inconsistencies in material flow can lead to improper batch ratios, waste, or production downtime. The challenge lies in controlling multiple valve points under high-speed production conditions without sacrificing repeatability or actuator lifespan.

The Solution:AOITEC’s HighSPD Electric Actuator

To address these challenges, a leading plastic injection molding facility integrated AOITEC’s HighSPD Series electric actuators into its conveying line. Designed for ultra-fast response and cycle accuracy, the HighSPD actuator series is ideal for high-frequency applications where timing is critical.

Key features of the HighSPD Series include:

• Rapid opening and closing times, enabling precise cutoff and feed timing for powders and pellets

• High duty cycle capability, engineered for continuous operation in demanding production environments

• Compact, direct-mount design for seamless installation on diverter valves, butterfly valves, and other pipeline components

• Precision control logic, allowing tight synchronization with PLC-based batching and blending algorithms

• Extended service life, with robust internal gearing and motor protection optimized for repetitive cycles

Implementation and Outcome

Our actuators were connected to the plant’s centralized control system, with signal feedback supporting real-time batch verification.

Once deployed, the HighSPD Series actuators delivered immediate performance improvements:

• Reduced cycle times for valve switching, improving overall throughput

• Greater material flow accuracy, resulting in tighter batch tolerance across molding runs

• Lower maintenance demand compared to pneumatic actuators and solenoids

• Increased system responsiveness during automatic cleaning and purge cycles

  
  

Conclusion

AOITEC’s HighSPD Series provides a high-performance, electric alternative to pneumatic actuation in time-sensitive conveying and blending systems. For plastic injection molding plants aiming to improve consistency, reduce waste, and boost production speed, the HighSPD Series delivers the speed and precision essential for modern materials handling.