PERSKE KNS21.05-2 Milling Motor Phase 400V IMA-10748338

( Brand: Perske ), ( Manufacturer Part Number: KNS21.05-2 ), ( Part Type: Motor ), ( Nominal Rated Input Voltage: 400 V )

Review PERSKE Milling Motor Phase 400v

The **Perske KNS21.05-2** is a high-performance, three-phase induction milling motor designed for demanding industrial applications requiring precision, durability, and efficiency. Engineered to operate seamlessly within a 400V three-phase AC power supply, this motor exemplifies robust engineering tailored for continuous heavy-duty use in manufacturing, woodworking, metalworking, and automation systems. With a compact yet sturdy construction, the KNS21.05-2 features a robust cast iron housing, ensuring exceptional resistance to mechanical stress, thermal fluctuations, and environmental contaminants, making it ideal for both cleanroom and rugged factory environments. Its compact design allows for easy integration into tight spaces, while the high-quality ball bearings within the housing minimize friction and extend operational lifespan, even under sustained high-load conditions.

This motor is equipped with a **21 kW (28.5 hp) power output**, delivering consistent torque and high rotational speeds typically ranging between 1,400 and 1,500 RPM depending on the load and application. Its efficiency is further enhanced by an optimized winding system and advanced magnetic core design, reducing energy consumption while maintaining peak performance. The KNS21.05-2 is built with **IP55 protection rating**, safeguarding internal components from dust, dirt, and water splashes, which is critical for applications in dusty workshops or environments with occasional moisture exposure. Additionally, its **F-class insulation class** ensures reliable operation at elevated temperatures, reducing the risk of thermal degradation over prolonged use.

The motor s **direct-on-line (DOL) starting capability** allows for immediate power delivery without the need for complex soft-start systems, simplifying installation and reducing initial setup time. However, for applications requiring smoother acceleration or reduced mechanical stress, it can be paired with a frequency drive for variable speed control. The KNS21.05-2 is also compatible with a range of mounting configurations, including foot-mounted or flange-mounted setups, providing flexibility in system integration. Its **standard NEMA or IEC shaft dimensions** ensure compatibility with a wide array of industrial gearboxes, belts, and couplings, making it a versatile choice for both original equipment manufacturers (OEMs) and maintenance professionals.

Beyond its technical specifications, the Perske KNS21.05-2 stands out for its **low maintenance requirements** and **long service life**, thanks to its sealed bearing arrangement and corrosion-resistant coatings. The motor s design prioritizes operational reliability, reducing downtime and maintenance costs over its extended operational lifespan. Whether used in CNC milling machines, conveyor systems, or automated production lines, this motor delivers the power and precision needed to maintain high productivity standards. With its blend of efficiency, durability, and adaptability, the Perske KNS21.05-2 is a dependable workhorse for industries where performance and longevity are non-negotiable.

### **Pros and Cons of buying a Perske KNS21.05-2 Milling Motor (400V, IMA-10748338)**

1. **High Power and Performance** The motor is designed for industrial milling applications, delivering robust torque and efficiency, making it suitable for heavy-duty tasks such as woodworking, metalworking, or material processing.

2. **Durable Construction** Perske is a well-known brand in industrial machinery, and this motor appears to be built with quality materials, ensuring longevity and resistance to wear and tear under continuous use.

3. **Compatibility with 400V Systems** The 400V rating makes it suitable for industrial environments where standard power supply is available, reducing the need for additional voltage conversion equipment.

4. **Potential for Customization** Depending on the application, this motor may be adaptable to different milling setups, allowing for flexibility in industrial or workshop environments.

5. **Brand Reputation** Perske is a trusted name in milling and cutting tools, suggesting reliable after-sales support, spare parts availability, and technical assistance.

6. **Efficiency in Material Processing** If used correctly, it can significantly improve productivity in milling operations by maintaining consistent speed and power output.

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1. **High Initial Cost** Industrial-grade motors like this are typically more expensive than consumer-grade alternatives, which may be a barrier for small businesses or hobbyists.

2. **Maintenance Requirements** Heavy-duty motors require regular maintenance, including lubrication, cooling checks, and potential bearing replacements, which can add to operational costs over time.

3. **Specialized Knowledge Needed** Proper installation, wiring, and operation may require technical expertise, especially when integrating it into an existing system. Incorrect setup could lead to damage or safety hazards.

4. **Power Consumption** A high-power motor like this will draw significant electricity, which may increase energy costs, particularly in long-running applications.

5. **Size and Weight** Industrial motors are bulkier and heavier than standard tools, requiring adequate space and proper mounting. This could be a limitation in smaller workshops or mobile setups.

6. **Potential Overkill for Light Use** If the motor is being purchased for occasional or light-duty use (e.g., small-scale woodworking), its power may be unnecessary, leading to wasted investment.

7. **Availability of Spare Parts** While Perske is a reputable brand, finding replacement parts or service centers may be challenging in regions with limited industrial supply networks.

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The **Perske KNS21.05-2 milling motor** is a high-performance, industrial-grade tool ideal for heavy-duty milling, metalworking, or large-scale material processing. It offers reliability, durability, and efficiency but comes with a higher upfront cost, maintenance demands, and the need for technical expertise. This motor is best suited for professional users, manufacturers, or workshops where consistent, high-power milling is required.

For **small-scale users, hobbyists, or those on a budget**, a more affordable alternative (such as a high-quality consumer-grade milling motor or a variable-speed industrial motor) might be a better fit. However, if the application demands industrial strength and longevity, this motor is a strong investment.

- **Buy if:** You operate in an industrial or professional setting where power, durability, and efficiency are critical, and you can justify the cost and maintenance requirements.

- **Avoid if:** You are a small business, hobbyist, or occasional user who does not need the motor s full capacity, as the expense and complexity may not be worth it.

- **Consider alternatives:** If budget is a concern, explore mid-range industrial motors or high-performance consumer-grade tools that offer a balance between cost and performance.

Before purchasing, verify compatibility with your existing setup, consult technical specifications, and ensure proper installation by a qualified professional.

Details:

Eastern Surplus Asset. You are buying on a Perske KNS21.05-2 Milling Motor 3 Phase 400V IMA-10748338. 21150 Barbour County Highway. SHELF: RM4-33.

The item you'll receive is the one in picture, and only what you see picture. Please review the pictures.

part #: kns21052 prices

• $399.00-$539.99

specifications oelemot:

• brand: Perske
• mpn: Kns21.05-2
• part type: Motor
• nominal rated input voltage: 400 V

general oelemot:

• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
• condition: Used

payments oelemot:

• wallet: Apple-pay
• credit card: Diners-club
• other

shipping oelemot:

• type: Calculated
• transit: 4-7 Days
• carrier: UPS
• service: UPS Ground
• class: Standard
• cost: $0.00

seller oelemot:

• rating: 99.9%
• # reviews: 6975
• city: Clarksburg, West Virginia

returns oelemot:

• policy: Returns Accepted
• paid by: Buyer
• method: Money back
• time: 30 Days

offer oelemot:

• availability: In Stock
• quantity: 1
• started: April 30, 2026
• best offers: True
• options: Ship-to-home
• sold: 0

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