SMC AR40-04GA Regulator Air Filter AF40-04A AFM40-04A 0.05 0.7MPA

( Brand: Smc ), ( Manufacturer Part Number: AR40-04GA ), ( Model: AR40-04GA, AF40-04A, AFM40-04A ), ( Part Type: Regulator Filter )

Review SMC Air Filter Regulator Combo 0.05

The **SMC AR40-04GA AF40-04A AFM40-04A Air Filter Regulator** is a precision-engineered pneumatic component designed to deliver reliable, clean, and pressure-controlled compressed air for a wide range of industrial, automotive, and automation applications. This compact yet robust unit combines a high-performance **air filter** (AFM40-04A), a **pressure regulator** (AF40-04A), and a **lubricator** (AR40-04GA) into a single, integrated assembly, ensuring optimal performance with minimal maintenance. The **AFM40-04A air filter** employs a high-efficiency pleated paper or synthetic media element that effectively removes contaminants such as dust, oil mist, and particulate matter down to **0.05 microns**, safeguarding downstream pneumatic equipment from wear and damage. This fine filtration capability is critical in applications where precision and longevity of pneumatic actuators, cylinders, and valves are essential.

The **AF40-04A pressure regulator** within this unit maintains a consistent and adjustable outlet pressure ranging from **0.05 to 0.7 MPa (5 to 7 bar)**, allowing operators to fine-tune performance for specific applications. Its **direct-acting diaphragm design** ensures quick response times and stable pressure regulation, even under fluctuating inlet conditions. The regulator s **knurled adjustment knob** provides tactile feedback, making it easy to set and verify the desired pressure without tools, while the **built-in pressure gauge** offers real-time monitoring for added convenience. The unit s **metal housing and reinforced seals** enhance durability, making it suitable for harsh environments where vibration, temperature variations, and moisture resistance are concerns.

The **AR40-04GA lubricator** component integrates seamlessly with the filter and regulator, automatically dispensing a precise amount of **high-quality synthetic lubricant** into the compressed air stream. This lubrication significantly reduces friction in pneumatic components, extending the life of seals, cylinders, and valves while improving efficiency and reducing energy consumption. The lubricator s **self-regulating oil flow system** ensures consistent lubrication without over-application, preventing oil buildup that could clog filters or contaminate sensitive equipment. Together, these three integrated functions filtration, pressure regulation, and lubrication create a **self-contained, all-in-one solution** that minimizes system complexity and maximizes reliability.

Ideal for use in **automotive assembly lines, CNC machining centers, packaging machinery, and industrial automation**, this air filter regulator is compatible with standard **SMC pneumatic systems** and features **quick-connect fittings** for easy installation and maintenance. The unit s **compact footprint** allows for flexible integration into tight spaces, while its **modular design** enables straightforward replacement of individual components (such as the filter or lubricator) without disrupting the entire system. Built to meet **international quality standards**, including **ISO 9001 certification**, this product exemplifies SMC s commitment to precision engineering and operational excellence, making it a trusted choice for engineers and technicians seeking a dependable, high-performance pneumatic solution.

### **Pros and Cons of buying a SMC AR40-04GA, AF40-04A, and AFM40-04A Air Filter Regulator (0.05 MPa / 0.7 Bar)**

#### **Overview**

The SMC AR40-04GA is a **pneumatic air filter-regulator-lubricator (FRL) unit** designed for compressed air systems. It combines filtration, pressure regulation, and lubrication in a single compact unit, making it suitable for light-duty pneumatic applications. The **AF40-04A** is a standalone air filter, while the **AFM40-04A** is a filter with a lubricator. The **0.05 MPa (0.7 bar) pressure rating** indicates it is best for low-pressure applications.

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### **Pros**

1. **Compact and Space-Efficient**

- The FRL unit (AR40-04GA) integrates filtration, regulation, and lubrication into one compact design, reducing the need for separate components. This saves installation space in tight or small pneumatic systems.

2. **Cost-Effective for Small Systems**

- For low-pressure applications (0.05 MPa / 0.7 bar), this unit is more affordable than purchasing separate filters, regulators, and lubricators individually. It eliminates the need for additional fittings and connections.

3. **Easy Installation and Maintenance**

- The unit is designed for straightforward mounting (typically via threaded or flanged connections) and has a simple pressure adjustment knob. Replacement filters and lubricator cartridges are readily available, making maintenance manageable.

4. **Built-in Lubrication (AR40-04GA & AFM40-04A)**

- The **AR40-04GA** and **AFM40-04A** include a lubricator, which extends the life of pneumatic components by reducing wear and tear. This is particularly useful in applications with frequent cycling or high-speed operations.

5. **Reliable Brand (SMC)**

- SMC is a well-established manufacturer in industrial automation, known for quality and durability. Their components are widely used in manufacturing, robotics, and automation, ensuring compatibility with other SMC products.

6. **Standardized Pressure Output**

- The fixed pressure rating (0.05 MPa / 0.7 bar) ensures consistent airflow for applications like light pneumatic cylinders, clamps, or small actuators where precise but low pressure is required.

7. **Compatibility with Common Pneumatic Tools**

- Works well with standard pneumatic devices such as solenoids, valves, and light-duty pneumatic tools, making it a versatile choice for small workshops or automated processes.

---

### **Cons**

1. **Limited Pressure Range**

- The **0.05 MPa (0.7 bar) rating** is very low and may not be suitable for heavy-duty applications requiring higher pressure (e.g., industrial presses, large cylinders, or high-force actuators). If your system needs higher pressure, you would need a different model.

2. **No Adjustable Pressure Range**

- Unlike some regulators that allow pressure adjustments within a range (e.g., 0.2 0.8 bar), this unit is fixed at 0.05 MPa. If your application requires slight variations in pressure, you may need an external regulator.

3. **Filter Capacity May Be Insufficient for Dirty Air**

- The filtration efficiency depends on the quality of incoming compressed air. In environments with high particulate contamination (e.g., dusty workshops), the filter may clog quickly, requiring frequent replacements. A **pre-filter** may be necessary for optimal performance.

4. **Lubricator Cartridge Replacement Required**

- The lubricator in the **AR40-04GA** and **AFM40-04A** requires periodic oil changes (typically every 1,000 2,000 hours of operation). Forgetting to replace the oil can lead to dry lubrication, increasing wear on pneumatic components.

5. **Not Suitable for High-Flow Applications**

- The **AR40-04GA** has a relatively small flow rate, making it unsuitable for high-demand systems (e.g., large pneumatic conveyors or multiple simultaneous actuators). For such cases, a larger FRL unit (e.g., SMC AR50 series) would be more appropriate.

6. **Limited Temperature Range**

- Most SMC FRL units operate effectively within a temperature range of **0 C to 60 C (32 F to 140 F)**. Extreme temperatures (e.g., in outdoor or high-heat environments) may affect performance or require additional protection.

7. **Potential for Leaks Over Time**

- Like all pneumatic components, seals and gaskets can degrade with age or improper installation, leading to air leaks. Regular inspections are necessary to prevent pressure drops or system inefficiencies.

8. **No Built-in Moisture Separator**

- While the filter removes some particulates, it does not fully separate moisture. In humid environments, condensation may still occur downstream, potentially damaging sensitive components. A **moisture separator** may be needed for critical applications.

---

### **Conclusion**

The **SMC AR40-04GA, AF40-04A, and AFM40-04A** are **excellent choices for low-pressure, compact pneumatic systems** where space and cost are concerns. They are ideal for:

- Light-duty pneumatic actuators (e.g., small cylinders, clamps, or valves).

- Automated processes in clean or moderately controlled environments.

- Applications requiring built-in lubrication to extend component life.

- Small workshops or hobbyist setups where simplicity is preferred.

- High-pressure applications (above 0.05 MPa).

- Heavy-duty or high-flow systems.

- Environments with extremely dirty or humid air without additional filtration.

- Systems requiring adjustable pressure regulation.

---

### **Recommendation**

- You need a **low-cost, compact FRL unit** for a **light-duty, low-pressure pneumatic system** ( 0.05 MPa).

- Your application benefits from **built-in lubrication** (e.g., frequent cycling or sensitive components).

- You operate in a **clean or moderately controlled environment** where air quality is not severely compromised.

- You prefer **plug-and-play simplicity** without needing separate filters, regulators, and lubricators.

- You require **higher pressure** (e.g., 0.2 0.8 MPa or above) Upgrade to a **larger FRL unit** (e.g., SMC AR50 series).

- Your system has **high particulate or moisture content** Add a **pre-filter or moisture separator**.

- You need **adjustable pressure regulation** Pair with an **external regulator**.

- The application involves **high flow rates** Choose a **higher-capacity FRL unit**.

- Operating conditions include **extreme temperatures** Verify compatibility with SMC s extended-range models.

- Regularly check and replace the **filter element** (every 6 12 months or as per air quality).

- Change the **lubricator oil** at recommended intervals (typically every 1,000 2,000 hours).

- Inspect for **leaks** and tighten connections if necessary.

For most **small-scale, low-pressure pneumatic needs**, this unit provides a **practical and cost-effective solution**. However, always assess your specific requirements before purchasing to ensure it meets your system s demands.

Details:

12mm push to connect inlet. Includes SMC 1S10M-40A pressure switch. 6 5/16 Push to connect outlet's. Cord length on pressure switch may vary.

May have scratches an stickers from prior use. SMC AR40-04GA, AF40-04A, AFM40-04A, Air Filter Regulator Combo, 0.05 - 0.7MPa Gopher Sales A proud subsidiary of 0.7MPa: Brand:: SMC, model: : condition: Used, : : This item is in used condition. Everything included is shown in the photos. It is not tested.

Processing times may vary, especially during high-demand periods.

part #: ar4004ga prices

• $26.47-$70.00

specifications generapneumati:

• brand: Smc
• mpn: Ar40-04ga
• model: Ar40-04ga, Af40-04a, Afm40-04a
• part type: Regulator Filter

general generapneumati:

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

offer generapneumati:

• started: March 27, 2026
• options: Ship-to-home
• quantity: 5
• best offers: True
• sold: 0
• availability: In Stock

shipping generapneumati:

• service: USPS Ground Advantage, UPS Ground, USPS Priority Mail, UPS Next Day Air
• carrier: USPS, UPS
• class: Standard, Expedited, One-day
• cost: $26.15
• transit: 7-11 Days
• type: Calculated

seller generapneumati:

• rating: 100.0%
• city: Schenectady, New York
• # reviews: 1579

payments generapneumati:

• other
• wallet: Google-pay
• credit card: Mastercard

returns generapneumati:

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

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