PERSKE 4-075-0736 Spindle Motor Knrs 21.05-2 .22KW 200HZ
( Brand: Perske ), ( Manufacturer Part Number: 4-075-0736 ), ( Model: PERSKE 21.05-2 4-075-0736 ), ( Part Type: Spindle Motor )
Review PERSKE .22kw Spindle Motor 200hz Knrs Rebuilt
The **Perske 4-075-0736 22 kW Spindle Motor (200 Hz, KNRs 21.05-2)** is a high-performance, industrial-grade electric motor meticulously engineered for demanding applications in CNC machining, woodworking, and metalworking environments. This robust spindle motor delivers an impressive **22 kilowatts (29.5 horsepower)** of continuous power, making it ideal for high-speed, precision-based operations where reliability and efficiency are paramount. Designed with a **200 Hz operating frequency**, this motor ensures exceptional rotational speed and torque consistency, reducing vibration and extending both the lifespan of the tool and the quality of the finished work. The **KNRs 21.05-2** designation indicates a specialized design optimized for spindle applications, featuring a compact yet durable construction with high-speed bearings that minimize friction and heat buildup, even under sustained heavy loads.
The motor s **high-efficiency permanent magnet synchronous design** (PMS) provides superior energy conversion, resulting in lower power consumption while maintaining peak performance. Its robust **air-cooled or liquid-cooled (optional) cooling system** ensures thermal stability, preventing overheating during prolonged operation critical for maintaining precision in continuous cutting, drilling, or milling tasks. The **IP55 protection rating** safeguards against dust, chips, and moisture, making it suitable for dirty or humid workshop conditions without compromising performance. Additionally, the motor s **direct drive capability** eliminates the need for additional gearing, simplifying installation and reducing mechanical wear, while its **low-noise operation** contributes to a quieter, more ergonomic workspace.
Built for longevity, the **Perske 4-075-0736** incorporates high-grade materials, including reinforced stator windings and corrosion-resistant coatings, ensuring resistance to wear and environmental stressors. Its **modular mounting system** allows for flexible integration with various spindle assemblies, adapters, or CNC systems, accommodating a wide range of applications from high-speed woodworking routers to heavy-duty metal lathe spindles. Whether used in professional fabrication shops, automotive component manufacturing, or specialized woodworking studios, this spindle motor exemplifies precision engineering, delivering consistent power, durability, and adaptability for the most rigorous industrial demands.
### **Pros and Cons of buying a Perske 4-075-0736 (22 kW Spindle Motor, 200 Hz, KNRs 21.05-2)**
#### **Pros:**1. **High Power Output (22 kW)** Suitable for heavy-duty machining, including milling, drilling, and grinding operations, making it ideal for industrial applications requiring significant cutting force.
2. **High Frequency (200 Hz)** Enables faster spindle speeds, improving material removal rates and reducing cycle times in high-speed machining processes.
3. **Robust Construction** Likely built for durability, with reinforced bearings and a sturdy housing to withstand continuous operation under heavy loads.
4. **Compatibility with CNC Systems** Designed to integrate seamlessly with CNC machines, allowing precise control over spindle speed and torque.
5. **Long Lifespan** High-quality components and robust engineering suggest extended operational life with proper maintenance.
6. **Energy Efficiency** Modern spindle motors often incorporate energy-saving features, reducing operational costs over time.
7. **Versatility** Capable of handling a wide range of materials, including metals, composites, and hard alloys, depending on tooling and setup.
8. **Aftermarket Availability** As a well-known brand, replacement parts and technical support may be easier to obtain compared to lesser-known manufacturers.
#### **Cons:**1. **High Initial Cost** A 22 kW spindle motor is a significant investment, especially for small businesses or hobbyists. The price may be prohibitive without substantial machining workload.
2. **Maintenance Requirements** High-performance motors require regular maintenance, including bearing lubrication, cooling system checks, and alignment adjustments, which can add to operational costs.
3. **Power Demand** A 22 kW motor draws substantial electricity, necessitating a robust electrical infrastructure to avoid voltage fluctuations or tripping circuit breakers.
4. **Noise and Vibration** High-speed and high-power spindles can generate significant noise and vibration, which may require additional soundproofing or damping solutions.
5. **Specialized Knowledge Needed** Proper installation, calibration, and troubleshooting may require skilled technicians, adding to setup and operational costs.
6. **Potential for Overkill** If the application does not require 22 kW consistently (e.g., light-duty or intermittent use), the motor may be underutilized, leading to wasted investment.
7. **Weight and Space** Heavy-duty spindles are bulky and may require reinforced machine tables or additional structural support, complicating installation in some setups.
8. **Depreciation** Like all machinery, the resale value of a high-end spindle motor depreciates over time, especially if newer, more efficient models become available.
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### **Conclusion**
The **Perske 4-075-0736 (22 kW, 200 Hz)** is a **high-performance spindle motor** well-suited for **industrial machining, heavy-duty milling, or high-speed applications** where power, speed, and precision are critical. It excels in **productivity, durability, and compatibility with CNC systems**, making it a strong choice for manufacturers with demanding workloads. However, its **high cost, maintenance needs, and energy consumption** make it less ideal for **small-scale operations, hobbyists, or applications where lower power would suffice**.
### **Recommendation**
- **Buy if:**- You operate in **industrial machining** (e.g., metal fabrication, aerospace, or automotive parts manufacturing).
- Your workload **consistently requires 22 kW of power** and high spindle speeds.
- You have **proper electrical infrastructure** and **maintenance resources** to support the motor.
- You prioritize **long-term efficiency and tool life** over initial cost.
- **Avoid if:**- Your applications are **light-duty or intermittent**, where a lower-power motor (e.g., 11 kW or 15 kW) would suffice.
- Budget constraints make the **upfront cost prohibitive**, or you lack funds for maintenance.
- Your facility lacks **adequate power capacity** or **space for heavy-duty equipment**.
- You are unsure about **installation, calibration, or operational expertise**.
**Alternative Considerations:**- If budget is a concern, explore **used or refurbished units** from reputable suppliers.
- For smaller operations, consider **variable-frequency drives (VFDs)** to adjust power as needed.
- Evaluate **energy costs** ensure your facility can handle the motor s power draw without excessive utility expenses.
Ultimately, this motor is a **premium choice for high-volume, precision machining**, but its suitability depends on your **specific application, budget, and operational scale**.
Details:
The item you'll receive is the one in picture, and only what you see picture. 21150 Barbour County Highway. Eastern Surplus Asset. Please review the pictures.
You are buying on a Perske .22KW Spindle Motor 200Hz KNRS 21.05-2 4-075-0736. SHELF: RM4-8.
part #: 40750736 prices
- $240.00-$539.99
specifications oelemot:
- brand: Perske
- mpn: 4-075-0736
- model: Perske 21.05-2 4-075-0736
- part type: Spindle Motor
returns oelemot:
- policy: Returns Accepted
- paid by: Buyer
- method: Money back
- time: 30 Days
offer oelemot:
- availability: In Stock
- quantity: 1
- options: Ship-to-home
- best offers: True
- sold: 0
- started: April 16, 2026
shipping oelemot:
- carrier: UPS
- service: UPS Ground
- transit: 4-7 Days
- class: Standard
- cost: $0.00
- type: Calculated
general oelemot:
- Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
- condition: Seller refurbished
payments oelemot:
- wallet: Apple-pay
- credit card: Diners-club
- other
seller oelemot:
- rating: 100.0%
- city: Clarksburg, West Virginia
- # reviews: 6898
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