Plastic Insulating Bracket for Motor, DC Variable Frequency Motor

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Motor bracket

97mm

Plastic coated Rotor

One-shot injection molding

Advantages of Variable Frequency Motors with One-shot Molded Rubber-coated Rotors

This variable frequency motor adopts the one-shot molding process for rotor rubber coating, integrating the rotor core and rubber layer into a solid whole in a single production cycle. It combines the high-efficiency operation characteristics of variable frequency motors with the excellent performance brought by the integrated rubber coating technology, and its core advantages are as follows:

1. Superior Vibration & Noise Reduction

The integrally molded rubber layer acts as a high-performance damping buffer, which effectively absorbs the vibration generated during rotor rotation and reduces the noise caused by mechanical friction and resonance. The motor runs more quietly, making it ideal for noise-sensitive application scenarios such as household appliances, medical equipment and office equipment.

2. Enhanced Insulation Performance

The seamless rubber coating formed by one-shot molding fully covers the metal parts of the rotor, effectively isolating the rotor core from the stator and other components. It improves the motor’s insulation level, prevents potential safety hazards such as leakage and short circuit, and ensures stable operation even in humid or dusty environments.

3. Improved Structural Firmness

Different from the traditional adhesive bonding process, the one-shot molding technology realizes the molecular-level combination of the rubber layer and the rotor core. The structure is tighter and more reliable, which can resist the centrifugal force generated by high-speed rotation for a long time, avoid the risk of rubber layer peeling off, and extend the service life of the motor.

4. Outstanding Energy-saving Effect

As a variable frequency motor, it can adjust the running speed intelligently according to the actual load demand, realizing significant energy saving compared with fixed-speed motors. The optimized rubber-coated rotor reduces the mechanical loss during operation, further improving the overall energy conversion efficiency of the motor.

5. Simplified Production & Lower Costs

The one-shot molding process integrates multiple procedures such as rotor pretreatment, rubber molding and curing into one step, which shortens the production cycle, reduces the labor and equipment investment in the intermediate links, and effectively controls the overall manufacturing cost of the motor.

DC Variable Frequency Motor Plastic Bracket

Advantages of Using Insulating Plastic Brackets in DC Variable Frequency Motors

Insulating plastic brackets are tailored to the operational characteristics of DC variable frequency motors, integrating material advantages with structural functionality to deliver multi-dimensional performance upgrades. Their core benefits are as follows:

1. Excellent Electrical Insulation Performance

Plastic materials inherently feature high electrical insulation resistance, which can effectively isolate the motor’s live components from metal housings, stator cores and other structural parts. This prevents electrical faults such as leakage and short circuits, especially ensuring stable electrical performance when the DC variable frequency motor operates at high-frequency speed regulation, thus enhancing overall operational safety.

2. Lightweight Design to Boost Energy Efficiency

Compared with traditional metal brackets, plastic materials have lower density, significantly reducing the motor’s overall weight. This cuts down the inertial load during motor operation, enabling the variable frequency motor to respond more quickly to load changes during speed adjustment. At the same time, it lowers energy consumption and improves energy conversion efficiency.

3. Strong Corrosion Resistance and Environmental Adaptability

Insulating plastic brackets are resistant to erosion by moisture, acids, alkalis, dust and other harsh environmental factors, avoiding the rust and corrosion issues common to metal brackets. They are suitable for a wide range of application scenarios including kitchen and bathroom appliances, industrial humid workshops, and extend the service life of motors.

4. High Molding Precision and Strong Compatibility

Plastic can be formed into brackets with complex structures through precision injection molding, which perfectly fits the internal space layout of DC variable frequency motors. It achieves accurate positioning and fixation of rotors and stators. Meanwhile, reinforcing ribs, mounting holes and other structures can be integrally molded, simplifying the motor assembly process and improving production efficiency.

5. Vibration Damping and Noise Reduction for Optimized Operation Experience

Plastic has natural elasticity and damping properties, which can absorb the vibration generated during motor operation and reduce mechanical friction noise between the bracket and other components. This complements the low-noise operation advantage of DC variable frequency motors and enhances the end-user experience.

6. Controllable Cost to Improve Cost-Effectiveness

The raw material procurement cost and injection molding processing cost of plastic are lower than those of metal processing, effectively reducing the overall manufacturing cost of motors. In addition, the mass production efficiency of plastic brackets is high, which is suitable for large-scale supply and helps improve the market competitiveness of motor products.
　

Plug-in stators Plastic bracket

This series of motors adopts size-matched plug-in stators with variable thickness, which can be flexibly adjusted according to different power requirements.

Company Introduction

Zhongshan SKONE Plastic Mold Factory, located in Zhongshan City, is a professional manufacturer specializing in the production of key components for DC variable frequency motors. With a focus on precision manufacturing and customer-centric service, we have established a solid reputation in the motor accessory industry.
Our main products include plastic insulating brackets and plastic-coated rotors specifically designed for DC variable frequency motors. These products are engineered to meet the rigorous performance requirements of modern variable frequency motor systems, featuring excellent insulation properties, high structural stability, and reliable durability. We adhere to strict quality control standards throughout the production process, from raw material selection to final product inspection, ensuring that every product delivered to our customers meets or exceeds industry benchmarks.

We are committed to providing products with excellent quality and reasonable price. By optimizing our production processes, improving manufacturing efficiency, and maintaining a cost-effective supply chain, we are able to offer competitive pricing without compromising on quality. This combination of premium quality and market-leading pricing has made our products popular among customers both domestically and internationally.

We take pride in our professional technical team and advanced production equipment, which enable us to meet the customized needs of different customers. Whether it's product design adjustments or batch production requirements, we can provide flexible and efficient solutions. Our goal is to establish long-term and stable cooperative relationships with customers by providing reliable products and thoughtful services.

Welcome to contact US for more information about our products. We look forward to cooperating with you and creating mutual success in the motor industry!