Features: brand new and high quality Adjustable speed: The air pump has a speed control design, you can adjust the flow rate from 0-30L/Min by rotating the regulator, and adjust the airflow speed according to the needs of the laser engraving machine. Great Air pump suitable for laser engraving machine: SCULPFUN 30L/Min air pump is very suitable for air-assisted laserengraving machine, it can be perfectly suitable for SCULPFUN S10 or other similar air-assisted laser engraving machines. High durability: This air pump has been produced and sold in the market for more than 10 years. After long-term testing and verification, it has extremely reliable function and stability. Low noise and low vibration: Upgraded silent design, the internal structure of the machine and the external anti-vibration feet greatly reduce noise or vibration, providing a quiet working environment less than 40dB. Stable air pressure output: High stability design, it can maintain a stable air output even if it has been working for a long for time. Specifications: For: ATOMSTACK,NEJE,XTOOL,ORTUR,SCULPFUN and most of engraving machine models on the market Parameter: 10-30L/Min (Adjustable airflow speed) Noise decibel: 40dB Length: approx. 175mm/6.89in Package Includes: 1Set x Air Pump note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!