UNO AIR's News
2026-08-05
Is your air compressor tank really the size it claims to be?
Many people never check whether their compressor tank's actual capacity matches the advertised specification.
We've seen competing products with up to 35% less actual capacity to reduce manufacturing costs.
For example, a "50L" air tank may actually hold only 32.5L.
A smaller tank means:
• Faster pressure drops during use
• Less stable airflow for pneumatic tools and equipment
• More frequent pressure switch cycling
• Increased workload and wear on the motor
Once you know your tank's actual capacity, you can also estimate your compressor's air delivery (L/min) with this simple calculation:
Air Delivery (L/min) ≈ Tank Capacity (L) * 8 ÷ Time (minutes) to fill from 0 MPa to 0.8 MPa
It's a quick way to compare real-world performance instead of relying solely on marketing specifications.
Know your tank. Know your compressor. Choose performance and reliability , not just the label.
2026-07-24
Since its establishment in 1979, Unoair has been dedicated to the manufacturing and distribution of high-quality air tools and air compressors in Taiwan.
To provide faster and more reliable products and services, we have established air compressor assembly plants and service centers in China and the United States, continuously strengthening our production and support capabilities.
By 2020, Unoair's air tools and air compressors had been used in more than 50 countries worldwide.
We are now preparing to establish a small air compressor assembly plant and service center in Japan to deliver high-quality products to Japanese customers at affordable prices.
Since our founding, Unoair has grown together with our customers by placing "Quality" and "Trust" above all else, without relying on extensive advertising.
We proudly support a wide range of industries, including automotive, motorcycle, and aerospace manufacturing and maintenance, industrial production lines, and agriculture.
We also contribute to society through the supply and donation of disaster-relief air compressors and emergency rescue equipment.
We would like to express our sincere gratitude to our customers around the world for their continued trust and support since 1979. We remain committed to providing high-quality products and exceptional services, and we will continue striving to exceed our customers' expectations for many years to come.
2026-07-16
Learn how to set the correct air pressure, avoid over-tightening, and achieve consistent, accurate screw fastening with your pneumatic screwdriver. Proper air regulation ensures perfect torque, better product quality, and longer tool life.
2026-07-01
Direct-drive engine compressors has been regaining popularity due to its portability.
2026-06-24
Reliable and consistent quality
2026-06-17
Pneumatic Rivet Shavers deliver a smooth, flush rivet finish with precision and efficiency.
Get the right tool for the job—and achieve professional results every time.
Get the right tool for the job—and achieve professional results every time.
2026-06-10
Reliable products are built through clean, efficient, and professional manufacturing processes.
2026-05-29
Professional power.
Fast, clean, and efficient results.
Meet Unoair I-66 3/4" impact wrench!
Fast, clean, and efficient results.
Meet Unoair I-66 3/4" impact wrench!
2026-03-04
Unoair is excited to share that our company is attending Internationale Eisenwarenmesse Köln 2026 at Hall 4.1, Booth E040/F041.
Many of our valued business partners have warmly visited our booth to explore new opportunities and strengthen our cooperation.
We truly appreciate your support.
We would especially like to thank our partners in Germany and across the EU for distributing our air compressors, pneumatic tools, torque screwdrivers, and hand tools — helping professionals achieve outstanding results every day.
If you are at the fair, feel free to stop by.
We look forward to meeting you!
Many of our valued business partners have warmly visited our booth to explore new opportunities and strengthen our cooperation.
We truly appreciate your support.
We would especially like to thank our partners in Germany and across the EU for distributing our air compressors, pneumatic tools, torque screwdrivers, and hand tools — helping professionals achieve outstanding results every day.
If you are at the fair, feel free to stop by.
We look forward to meeting you!
2026-02-18
When purchasing an attachment such as a grinding disc, cut-off wheel, or polishing pad, always ensure that the maximum rated RPM of the attachment is equal to or greater than the maximum speed of your tool, whether the tool is pneumatic or electric. Using an attachment with an insufficient speed rating may result in serious injury due to attachment failure.
Identifying the Maximum Tool RPM
Pneumatic tools:
The maximum speed is typically indicated directly on the tool label as free speed (n/min or RPM).
AC Electric tools:
Many electric tools display the maximum RPM on the specification label. If the RPM is not listed, it can be estimated using the following formula:
N(RPM)=120×Frequency (Hz)/P(Number of motor poles)
Next, calculating Attachment Peripheral Speed
To determine the maximum circumferential (peripheral) speed of the attachment when used with your tool, use the following formula:
V (m/s)=π×D (disc diameter in mm)×n (tool free RPM)/60,000
Safety Comparison
Compare the calculated speed V (m/s) with the maximum allowable speed marked on the attachment (referred to as Vd).
If Vd < V → DO NOT USE this attachment. It is not designed for the tool speed and may fail.
If Vd ≥ V → The attachment is suitable for use with the tool.
Important Safety Reminder
Safe operation involves more than speed compatibility. Users must also understand:
Proper use of the grinder guard
Correct grinding angle and permitted contact surfaces
Mounting procedures and inspection before use
Tool handling and personal protective equipment (PPE)
Always read and understand the tool manufacturer’s instructions before operation to ensure maximum safety and efficiency.