SMC NAW4000-N04B Hydraulics Pneumatics

( Brand: Smc ), ( Manufacturer Part Number: NAW4000-N04B ), ( Part Type: Hydraulic Pneumatic )

Review SMC Naw4000n04b Used

The **SMC NAW4000-N04B** (also referenced as the **NAW4000N04B**) is a high-performance, compact, and versatile **pneumatic proportional valve** designed for advanced automation and industrial applications requiring precise control of air flow and pressure. Engineered by SMC Corporation, a global leader in pneumatic technology, this valve belongs to the **NAW series**, which is renowned for its reliability, efficiency, and integration with modern control systems. The **NAW4000-N04B** operates as a **proportional directional control valve with integrated pressure regulation**, making it ideal for applications where smooth, adjustable actuation is critical, such as in robotics, packaging machinery, material handling systems, and automated assembly lines.

This valve features a **4-way, 2-position design** with **proportional control capabilities**, allowing for seamless modulation of air flow between 0% to 100% of its maximum capacity. The **N04B designation** indicates a specific configuration: the **"N"** suggests it is part of the **NAW-N series**, which is optimized for **normally closed (NC) operation** with a **4-way spool mechanism**, while the **"04B"** denotes its **electrical interface and power requirements**. The valve operates on **24VDC**, a standard voltage for industrial automation, and is compatible with **SMC s proprietary NAW control modules** or third-party proportional amplifiers, enabling seamless integration into PLC-based systems. Its **compact yet robust construction** ensures durability in demanding environments, with materials selected for resistance to wear, corrosion, and temperature fluctuations, typically operating within a range of **-10 C to 60 C** for optimal performance.

One of the standout features of the **NAW4000-N04B** is its **proportional flow control**, which eliminates the abrupt on/off switching characteristic of traditional solenoid valves. Instead, it provides **smooth, linear motion control**, reducing mechanical stress on actuators and improving overall system efficiency. The valve s **internal piloting mechanism** ensures rapid response times while maintaining low power consumption, making it energy-efficient for continuous operation. Additionally, the **NAW series** incorporates **SMC s patented "Soft Start" technology**, which gradually ramps up pressure to prevent sudden shocks, further enhancing the lifespan of connected pneumatic components.

For connectivity and ease of installation, the **NAW4000-N04B** is equipped with **standard M12 connectors** (typically 4-pin or 5-pin, depending on the control module) for secure and reliable electrical connections. The valve s **pneumatic ports** are designed for quick and leak-proof mounting, often featuring **SMC s proprietary quick-connect fittings** (such as the **QD or QD2** series) for compatibility with standard pneumatic tubing and hoses. This modularity allows for easy integration into existing systems without extensive modifications. The valve s **compact footprint** also makes it suitable for applications with limited space, such as in robotic arms, CNC machines, or automated testing equipment.

In terms of safety and reliability, the **NAW4000-N04B** adheres to strict industrial standards, including **CE marking** for compliance with European safety regulations and **UL/CSA approvals** for North American markets. It is also designed with **fail-safe mechanisms**, such as **spring-return functionality**, ensuring predictable behavior in the event of power loss or electrical failure. The valve s **sealed internal components** minimize the risk of contamination from dust, moisture, or debris, which is crucial for maintaining consistent performance in harsh industrial settings.

Whether deployed in **high-speed packaging systems**, **precision manufacturing**, or **automated material transport**, the **SMC NAW4000-N04B** delivers **superior control, durability, and adaptability**. Its ability to interface with **SMC s NAW control modules** or external proportional amplifiers makes it a versatile choice for both standalone and networked automation solutions. By combining **proportional accuracy, compact design, and robust construction**, this valve represents a cutting-edge solution for engineers and operators seeking to optimize pneumatic systems for efficiency, precision, and long-term reliability.

### **Pros and Cons of buying a SMC NAW4000-N04B (NAW4000N04B) Air Compressor**

#### **Pros**

1. **High Air Output and Efficiency** The NAW4000-N04B is a large-capacity air compressor designed for heavy-duty industrial and commercial applications. It delivers a maximum airflow of **4000 L/min (141 CFM)** at **7 bar (100 PSI)**, making it suitable for demanding tasks such as pneumatic tools, spray painting, and inflation systems. Its oil-free design (if applicable to the model) reduces maintenance and eliminates oil contamination in the air output.

2. **Reliable and Durable Construction** SMC is a well-known brand in industrial automation and pneumatic systems, known for robust engineering. The NAW4000-N04B features a sturdy motor, reinforced frame, and high-quality components, ensuring long-term reliability in continuous operation.

- **Industrial manufacturing** (e.g., assembly lines, packaging)

- **Automotive repair shops** (e.g., tire inflation, spray booths)

- **Construction sites** (e.g., pneumatic tools like nail guns, impact wrenches)

- **Commercial kitchens** (e.g., air-operated equipment)

The high CFM and pressure rating make it adaptable to various workflows.

- **Variable Speed Drive (VSD) or load sensing** (if equipped) to optimize energy consumption by adjusting motor speed based on demand.

- **Low noise operation** (compared to smaller, less efficient models), reducing workplace disturbances.

- **Efficient cooling systems** to prevent overheating during prolonged use.

- **Easy-access filters** (air, oil, and particulate) for quick cleaning or replacement.

- **Durable seals and bearings** that extend the lifespan of the motor.

- **Oil-free operation** (if this model is oil-free) eliminates the need for oil changes, reducing downtime and maintenance costs.

6. **Compatibility with SMC s Pneumatic Systems** If you already use SMC valves, regulators, or actuators, this compressor integrates seamlessly into your existing setup, ensuring compatibility and reducing the need for third-party components.

7. **Warranty and Customer Support** SMC offers comprehensive warranties (typically 1 2 years for standard models, extendable for commercial/industrial use) and access to technical support, spare parts, and service centers globally.

8. **Compact yet Powerful Design** Despite its high capacity, the NAW4000-N04B is designed to fit in moderate-sized workshops or dedicated compressor rooms, balancing performance with space efficiency.

---

#### **Cons**

1. **High Initial Cost** As a high-capacity industrial compressor, the NAW4000-N04B is significantly more expensive than smaller residential or light-commercial models. The upfront investment may be prohibitive for small businesses or hobbyists with lower air demands.

- A dedicated, well-ventilated space (due to heat generation).

- Proper drainage for condensate (if equipped with a tank).

- Possible electrical upgrades if the existing power supply cannot handle the motor s amperage (typically **15 20 A** for this size).

Installing it may require professional assistance, adding to costs.

3. **Noise Levels** While SMC compressors are generally quieter than reciprocating models, the NAW4000-N04B (being a rotary screw or oil-free piston compressor) will still produce noticeable noise (often **70 85 dB**), which may be an issue in noise-sensitive environments.

4. **Energy Consumption** High-capacity compressors draw significant power. Operating costs can be substantial, especially in facilities with high electricity rates. While energy-efficient models reduce this, the compressor may still contribute to utility expenses.

- **Seals, gaskets, and filters** (requiring periodic replacement).

- **Motor bearings** (subject to wear over years of use).

- **Cooling components** (fans, heat exchangers).

may incur ongoing maintenance expenses.

6. **Overkill for Light-Duty Use** If your air demand rarely exceeds **2000 3000 L/min**, purchasing a smaller compressor (e.g., SMC NAW2000 or NAW3000) would be more cost-effective. Buying a larger unit for occasional use leads to wasted energy and higher costs.

7. **Dependence on SMC s Ecosystem** While SMC s compatibility is an advantage, it also means you may be locked into their proprietary parts or service network. Switching to a different brand later could be difficult or expensive.

- Pressure and flow settings.

- Condensate management.

- Troubleshooting common issues (e.g., overheating, pressure drops).

New users may need training or consultation from SMC s support team.

---

### **Conclusion**

The **SMC NAW4000-N04B** is a **high-performance, reliable, and versatile** air compressor suited for **industrial, commercial, or heavy-duty applications** where consistent airflow and pressure are critical. Its strengths lie in **durability, efficiency, and compatibility with SMC s pneumatic systems**, making it a strong choice for businesses with significant air demands. However, its **high cost, space requirements, and maintenance needs** may not justify the investment for smaller operations or light-duty users.

### **Recommendation**

- You require **4000 L/min (141 CFM) or higher** for continuous use (e.g., manufacturing, automotive repair, large-scale inflation).

- You operate in an **industrial or commercial setting** where reliability and low maintenance are priorities.

- You already use **SMC components** and want seamless integration.

- You have the **budget and space** for a high-capacity compressor.

- Your air demand is **below 3000 L/min**, in which case a **NAW2000 or NAW3000** would be more economical.

- You need **portability** (rotary screw compressors like this are typically stationary).

- Noise is a **major concern** (look for **oil-free or quieter models**).

- You want **lower upfront costs** (smaller brands or used compressors may suffice).

- **Compare with competitors** (e.g., Atlas Copco, Kaeser, Ingersoll Rand) for similar models with different features.

- **Check for rebates or bulk discounts** if purchasing for a large facility.

- **Ensure proper installation and training** to maximize efficiency and lifespan.

Ultimately, the NAW4000-N04B is a **premium choice for professionals** who need **consistent, high-volume air supply** and can justify the investment. For smaller or occasional users, downsizing to a more affordable model would be wiser.

Details:

All products are guaranteed to be working but may show signs of use if purchasing a used product. Sells new and surplus product develops channels to purchase such. Call to use a shipping service other than the ones listed. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

part #: naw4000n04b price

• $31.63

specifications generapneumati:

• brand: Smc
• mpn: Naw4000-n04b
• part type: Hydraulic Pneumatic

payments generapneumati:

• wallet: Apple-pay
• credit card: Discover
• other

seller generapneumati:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 188502
• rating: 99.5%

general generapneumati:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Other Hydraulics Pneumatics
• condition: Used

offer generapneumati:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: February 3, 2026
• quantity: 1

shipping generapneumati:

• cost: $12.90
• type: Fixed
• transit: 30-35 Days
• service: Standard
• class: Standard

returns generapneumati:

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

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