Rustproof Asynchronous Motor is an anti-rust asynchronous motor. Its rotor rotates by electromagnetic induction without permanent magnets. Built with corrosion-resistant materials and multi-layer waterproof & anti-corrosion structure, it resists workshop mist, washdown spray and mild chemical media to prevent metal oxidation. Widely used in food, seafood, daily chemical, wastewater treatment and other automatic production lines requiring frequent CIP cleaning, it delivers reliable power for conveyors, mixers and crushing equipment.
Precision Machined Stainless Steel Frame with Sealed Passivation
The frame of rustproof asynchronous motor is precision machined from stainless steel with sealed passivation to seal surface micro-pores. No paint coating is applied. It prevents corrosive media from penetrating the substrate and eliminates contamination risks caused by peeling paint.
Fully Enclosed Die-cast Squirrel Cage Rotor
The squirrel cage rotor is integrally die-cast. Rotor ends are wrapped with anti-rust sealing cover. Rustproof asynchronous motor stops moisture from entering the joint between rotor bars and end rings to avoid internal rotor rust and maintain consistent starting performance.
Multi-stage Buffered Shaft Seal Protection System
Shaft end adopts water deflector, dust gasket and double lip oil seal assembly. Rustproof asynchronous motor gradually weakens the impact of high-pressure wash water and blocks cleaning fluid and suspended particles from entering motor cavity to protect stator windings.
Sealed Passivated Surface Offers Improved Pitting Resistance
Sealed passivation fills tiny pores on stainless steel surface. Compared with ordinary stainless steel finish, it has better resistance to chloride pitting corrosion, suitable for intermittent salt mist conditions and slows down housing corrosion.
Fully Enclosed Rotor Reduces Rotor Failure Risk
End cover wrapping prevents moisture from reaching rotor bar joints. Rustproof asynchronous motor rarely suffers broken rotor bars under humid washdown environments and greatly improves operational stability.
Multi-stage Buffer Seal Reduces Direct Impact on Oil Seals
Water deflector diverts splashing water first to reduce pressure on oil seals, slowing down seal wear, extending replacement intervals and cutting production downtime.
Stainless steel IEC Motor Description
Stainless steel NEMA motor Description
Q: Can rustproof asynchronous motor be cleaned intermittently with chlorine-based detergent?
A: Short intermittent chlorine washing is acceptable. Rinse residual chemical with clean water after cleaning to avoid chloride buildup that damages the passivation film.
Q: How to configure overload protection for rustproof asynchronous motor?
A: Overload protection is not built into the motor. Thermal relay or VFD internal overload protection is recommended to cut power and protect windings under abnormal load.
Q: What are the storage requirements for rustproof asynchronous motor during long idle periods?
A: Store in dry and ventilated space. If stored for more than half a year, test winding insulation resistance before power-on.
Q: What is the allowable temperature rise of rustproof asynchronous motor housing during operation?
A: It adopts Class F insulation with permissible temperature rise of 80K. Housing temperature rises under heavy load, take care to avoid burns.
Q: Can rustproof asynchronous motor connect to agitator shaft directly via flange?
A: B5 flange version is available for direct coupling with agitator shaft. It can be fitted with mechanical seal for sanitary tank mixing applications.
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