Motor Applications in High-Speed Dough Mixers

1. Component Overview

The high-speed dough mixer is a critical piece of equipment in the food processing industry. It typically consists of the following core components:

• Mixing Tank: Made of 304 stainless steel that complies with food safety standards, it has a polished surface to prevent sticking and is easy to clean and disinfect to ensure hygiene and safety. The tank is designed with a splash-proof feature to avoid flour and other ingredients from splashing, protecting the operator.
• Mixing Shaft and Multi-functional Mixing Blades: The mixing shaft is made of high-strength, wear-resistant alloy materials to ensure stable transmission. Various shapes of mixing blades (such as spiral or blade types) are designed according to different flour types and recipes, optimizing kneading efficiency and meeting the required dough texture and elasticity.
• Drive System: Equipped with high-performance variable frequency servo motors, combined with high-precision planetary reducers, to ensure low-speed, high-torque output while achieving high-efficiency and energy savings. The system supports multi-stage speed control and torque protection to meet complex process requirements.
• Automation Control System: Integrates PLC control modules and human-machine interfaces, supporting multi-process parameter storage, remote monitoring, and fault self-diagnosis, greatly enhancing the level of production intelligence.

2. Working Principle

During operation, the motor drives the mixing shaft through a reduction mechanism. The mixing blades rotate at high speeds to evenly knead flour, water, and other ingredients, forming a uniform, fine dough. The motor control system adjusts speed and torque in real-time according to the dough's state and process requirements, ensuring consistent dough texture. This prevents overmixing, which could break the gluten or result in insufficient gluten development. The high-precision speed adjustment also ensures flexibility in quickly switching between different recipes for small-batch production.

3. Key Role of Motors in the System

The motor system in a dough mixer plays a key role in the following aspects:

• High Torque Smooth Output: During the dough mixing process, load fluctuations are significant, so the motor must have a strong startup torque and wide load adaptability to prevent stalling or machine shutdowns.
• High Precision Variable Frequency Speed Control: The motor achieves smooth, stepless speed adjustment through a frequency converter, supporting multiple speed stages to meet the needs of kneading, mixing, and blending at different speeds and torques.
• Smart Overload and Temperature Protection: The motor is equipped with thermal sensors and overload protection circuits that continuously monitor motor temperature and load conditions, preventing damage due to high temperatures or excessive loads, ensuring the equipment runs safely and stably.
• Hygiene and Safety Design: The motor features an IP65 sealed structure to prevent dust from entering the motor, and its housing is coated with food-grade corrosion-resistant coatings, making it suitable for humid, high-temperature, and cleaning conditions in the food processing environment.
• Low Noise and Low Vibration Operation: The motor’s internal structure and dynamic balancing design are optimized to reduce mechanical noise and vibrations during operation, improving the comfort of the production environment and minimizing interference with other equipment.
• Energy Efficiency: The motor’s high-efficiency design and advanced electromagnetic materials improve conversion efficiency and reduce energy consumption, supporting green manufacturing and sustainable development.

4. Customized Motor Solutions

For the high-speed dough mixer, which requires stability, reliability, and precise control, we offer a complete drive solution based on the GPG-VF132 series high-performance servo variable frequency motors. This series of motors provides excellent startup torque and a wide speed range, supporting rapid response speed and torque adjustments to ensure the mixer operates smoothly in various conditions. The motor is equipped with an advanced thermal management system, built-in temperature sensors, and intelligent air-cooling technology, ensuring thermal balance during continuous high-load operation and preventing shutdowns due to abnormal temperatures. The motor housing is made of food-grade stainless steel and high-protection coatings, resisting corrosion from cleaning chemicals and steam, thus extending the lifespan.

The control system supports various industrial communication protocols (such as EtherCAT, Modbus TCP/IP), making it easy to integrate with the automated production line system for remote monitoring and fault warnings, reducing maintenance costs. This solution ensures mixing efficiency and dough quality while also enhancing production efficiency and product competitiveness through intelligent control and energy-saving design. This allows for the intelligent upgrade of high-quality dough production.