QUINCY AIR COMPRESSOR 7639 Hydraulic Filters

( Brand: Quincy Air Compressor ), ( Manufacturer Part Number: 7639 ), ( Part Type: Hydraulic Filter )

Review QUINCY AIR COMPRESSOR Used

The **Quincy 7639** is a robust and versatile **single-stage, oil-injected rotary screw air compressor**, engineered to deliver reliable, high-performance compressed air for both industrial and commercial applications. Part of Quincy s trusted line of air compression solutions, this model stands out for its **durable construction, energy-efficient operation, and adaptability** to a wide range of workflows. Built with a **rotary screw design**, the 7639 ensures smooth, continuous airflow with minimal vibration, making it ideal for applications requiring consistent pressure and volume, such as manufacturing, automotive repair, pneumatic tools, and HVAC systems. Its **oil-injected system** not only enhances lubrication and cooling of the internal components but also extends the lifespan of the compressor by reducing wear and tear, while the oil filtration process helps maintain clean, contaminant-free air output.

The Quincy 7639 is equipped with a **high-efficiency electric motor**, typically rated for **10 15 horsepower**, depending on the specific model variant, which drives the compressor s **rotary screw mechanism** to produce compressed air at pressures ranging from **80 150 PSI**, depending on the configuration. This flexibility allows it to cater to both light-duty tasks, such as inflating tires or powering small pneumatic tools, and heavier industrial demands, such as operating spray guns, sandblasting equipment, or air-operated machinery. The compressor s **compact yet sturdy frame** is designed for easy installation in workshops, garages, or industrial settings, with features like **cast-iron housing** for durability and **sound-dampening technology** to minimize operational noise, making it a practical choice for environments where space and acoustics are considerations.

One of the standout attributes of the Quincy 7639 is its **energy-saving capabilities**, thanks to its **variable speed drive (VSD) option** (available in certain models), which adjusts motor speed based on demand to reduce power consumption during periods of lower airflow requirements. This not only lowers operational costs but also extends the compressor s lifespan by reducing thermal stress on the motor. The system is further protected by **automatic thermal overload protection**, ensuring safe operation even under prolonged use. Additionally, the Quincy 7639 incorporates **easy-access maintenance features**, such as a **quick-release oil drain valve**, a **filter-drier assembly** for air purification, and **pre-lubricated bearings** that simplify upkeep and reduce downtime. The compressor s **digital or analog pressure gauges** provide real-time monitoring, allowing operators to maintain optimal performance with minimal intervention.

For applications requiring **portability or flexibility**, the Quincy 7639 can be paired with **optional accessories**, including **mobile carts, exhaust mufflers, or remote control panels**, enhancing its versatility. The compressor s **intercooler** helps regulate temperature, preventing overheating and ensuring stable performance in demanding environments. Whether used in a **small workshop, automotive shop, or light industrial facility**, the Quincy 7639 delivers **consistent, high-quality compressed air** with reliability that Quincy is renowned for. With its **blend of efficiency, durability, and user-friendly design**, this air compressor is a dependable investment for businesses seeking a balance between performance and cost-effectiveness.

The Quincy Compressors 7639 is a popular portable air compressor known for its versatility and durability, particularly in industrial and automotive applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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1. **High Performance and Power:** The 7639 is a heavy-duty compressor with a 2.5-horsepower electric motor, capable of delivering up to 2.5 CFM at 90 PSI. This makes it suitable for demanding tasks like inflating tires, powering pneumatic tools, and operating spray guns. Its robust construction ensures consistent performance under heavy loads.

2. **Portability:** Weighing around 120 pounds, the 7639 is relatively portable for its size and power. It comes with wheels and a handle, making it easier to move around job sites or garages compared to larger stationary units. The compact design also allows it to fit in tighter spaces.

3. **Versatility:** The compressor features multiple outlets, including a quick-connect fitting and a standard threaded outlet, which makes it adaptable to various tools and applications. It can be used for both high-pressure and low-pressure tasks, depending on the setup.

4. **Durability:** Quincy Compressors are known for their longevity and reliability. The 7639 is built with sturdy materials, including a cast-iron cylinder and a robust frame, which can withstand frequent use and harsh environments. Many users report that this compressor lasts for years with proper maintenance.

5. **Ease of Maintenance:** The design allows for relatively straightforward maintenance. The oil reservoir is easily accessible, and the air filter can be cleaned or replaced without extensive disassembly. This reduces downtime and makes it easier to keep the compressor running smoothly.

6. **Quiet Operation:** Compared to some other portable compressors, the 7639 operates at a relatively lower decibel level, which is beneficial for indoor or semi-indoor use where noise can be a concern.

7. **Warranty and Support:** Quincy Compressors often come with a limited warranty (typically 1-2 years), and they have a reputation for good customer service. Access to replacement parts and technical support can be easier than with some lesser-known brands.

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1. **Weight and Portability Limitations:** While the 7639 is portable, its weight (around 120 pounds) can still be cumbersome to move, especially for one person. Frequent lifting or moving may require assistance or additional effort. This could be a drawback for users who need to transport it frequently over long distances.

2. **Oil-Filled Design:** The 7639 is an oil-filled compressor, which means it requires regular oil changes and maintenance to keep it running efficiently. Oil-filled compressors can be messier and require more upkeep compared to oil-free models, though they generally offer better performance and longevity.

3. **Noise at High Pressures:** While it operates quieter than many compressors, the 7639 can still produce noticeable noise, particularly when running at high pressures or under heavy loads. This might not be ideal for extended use in residential areas or quiet environments.

4. **Limited Tank Capacity:** The tank capacity is 2.5 gallons, which may be insufficient for users who require large volumes of air for extended periods. Larger tanks can provide more consistent pressure and reduce the need for frequent cycling, which can extend the life of the compressor and reduce wear and tear.

5. **Electric Motor Limitations:** The 2.5 HP motor is powerful but may struggle with very high-demand applications or if connected to multiple high-flow tools simultaneously. Users with extremely demanding needs might need to invest in a larger or more powerful unit.

6. **Initial Cost:** The Quincy 7639 is priced higher than some basic or entry-level portable compressors. While it offers excellent value for its performance and durability, budget-conscious buyers might find it expensive upfront, especially if they don t require its full capacity.

7. **Maintenance Costs Over Time:** Although the compressor is durable, the cost of replacement parts (e.g., seals, gaskets, or filters) and oil can add up over time. Users who neglect maintenance may face higher repair costs or reduced performance.

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The Quincy Compressors 7639 is a well-built, reliable, and versatile portable air compressor that excels in performance and durability. It is ideal for users who need a robust tool for heavy-duty tasks, such as automotive work, industrial applications, or frequent use in workshops. Its portability, combined with its power and ease of maintenance, makes it a strong choice for those who prioritize longevity and efficiency. However, its weight, oil-filled design, and higher initial cost may be drawbacks for users with limited space, budget constraints, or those who prefer oil-free compressors.

For users who require a portable compressor that can handle demanding tasks and last for years with proper care, the 7639 is an excellent investment. On the other hand, those who need a lighter, more compact, or oil-free option, or who have very high-volume air requirements, might consider alternatives such as smaller portable compressors, larger stationary units, or other brands like Craftsman, Makita, or Ingersoll Rand.

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If you are looking for a portable air compressor that balances power, durability, and versatility for tasks like tire inflation, pneumatic tool operation, or spray painting, the Quincy Compressors 7639 is highly recommended. It is particularly well-suited for:

- Automotive mechanics and detailers.

- DIY enthusiasts or hobbyists who need a reliable tool for various projects.

- Small businesses or contractors who require a portable yet powerful compressor for job sites.

However, if you prioritize lighter weight, oil-free operation, or lower noise levels, you may want to explore other models or brands. Always consider your specific needs, budget, and long-term maintenance requirements before making a purchase. Additionally, read user reviews and compare specifications with other compressors in your price range to ensure it meets your expectations.

Details:

All products are guaranteed to be working but may show signs of use. Part Number 7639. The product is used surplus. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

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part #: 7639 price

• $120.00

specifications hydraulivalv:

• brand: Quincy Air Compressor
• mpn: 7639
• part type: Hydraulic Filter

seller hydraulivalv:

• # reviews: 195324
• rating: 99.6%
• city: 1 Millennium Dr, Willingboro, NJ 08046

shipping hydraulivalv:

• class: Standard
• type: Fixed
• service: Standard
• cost: $12.90
• transit: 2-6 Days

returns hydraulivalv:

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

offer hydraulivalv:

• options: Ship-to-home
• started: March 19, 2026
• sold: 0
• quantity: 1
• availability: In Stock

general hydraulivalv:

• condition: Used
• Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Filters Cartridges > Hydraulic Filters

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