California Air Tools 20040SM Powerful 4.0 HP SMART Ultra Quiet & Oil-Free 20 Gallon Air Compressor – 220V

Product Description

The California Air Tools 20040SM is a powerful 4.0 HP SMART ultra-quiet and oil-free air compressor designed for professional workshops, garages, and applications requiring reliable compressed air with remote monitoring and control. It features a 20-gallon horizontal steel tank and produces only 75 dB of operating noise.

The compressor is powered by twin 2.0 HP SP-9421-22060 motors operating at only 1,680 RPM. The oil-free dual-piston pump delivers 12.80 CFM at 40 PSI and 10.60 CFM at 90 PSI while reducing noise, heat, and wear. The pump is designed for a life cycle of 3,000+ hours before wear.

The integrated MDR2i OLED SMART Controller allows users to monitor and control the compressor remotely using a mobile phone, tablet, notebook, or computer. The controller can operate as an access point or connect to a Wi-Fi network, allowing users to program operating schedules, pressure settings, unloader relay delay, overcurrent limits, pressure units, and monitor total motor-pump running hours.

Key Features

• 4.0 HP rated/running power
• Twin 2.0 HP SP-9421-22060 motors
• Oil-free dual-piston pump system
• 20-gallon horizontal steel air tank
• Ultra-quiet 75 dB operating noise level
• SMART MDR2i OLED controller for remote monitoring and control
• Wi-Fi or access-point connectivity
• Programmable compressor ON/OFF schedules
• Adjustable pressure ON and OFF levels
• Remote output pressure adjustment
• Programmable unloader relay delay
• Adjustable overcurrent limit
• Total motor-pump running hour monitoring
• 12.80 CFM at 40 PSI
• 10.60 CFM at 90 PSI
• Working pressure of 90–120 PSI
• Adjustable kick-on pressure up to 105 PSI
• Maximum kick-off pressure of 130 PSI
• Easy Start Valve for reduced starting amperage
• Thermal overload protection
• 70/30 duty cycle
• Low 14-amp draw
• Non-ASME steel air tank

Specifications

• Brand: California Air Tools
• Model: 20040SM
• Motor Power: 4.0 HP Rated/Running
• Motor Configuration: Twin 2.0 HP Motors
• Motor Model: SP-9421-22060
• Motor Speed: 1,680 RPM
• Pump Type: Oil-Free Dual Piston
• Tank Capacity: 20 Gallons
• Tank Material: Steel
• Tank Orientation: Horizontal
• CFM at 40 PSI: 12.80 CFM
• CFM at 90 PSI: 10.60 CFM
• Working Pressure: 90–120 PSI
• Adjustable Kick-On Pressure: Up to 105 PSI
• Maximum Kick-Off Pressure: 130 PSI
• Noise Level: 75 dB
• Voltage: 220V
• Frequency: 60 Hz
• Phase: Single Phase
• Current Draw: 14 Amps
• Plug Type: NEMA 6-15P
• Tank Fill Time: Approximately 150 Seconds
• Recovery Time: Approximately 40 Seconds from 95 to 125 PSI
• Duty Cycle: 70/30
• SMART Controller: MDR2i OLED
• Connectivity: Wi-Fi / Access Point
• Dimensions: 39 × 15 × 28 Inches
• Weight: 140 lbs
• Tank Rating: Non-ASME
• Warranty: 1-Year Limited Manufacturer Warranty

What's Included

• California Air Tools 20040SM Air Compressor
• 20-Gallon Horizontal Steel Air Tank
• Twin 2.0 HP SP-9421-22060 Motors
• Oil-Free Dual-Piston Pump System
• MDR2i OLED SMART Controller
• Pressure Regulator
• Pressure Gauge
• Female Industrial Push-to-Connect Quick Connector
• Easy Start Valve
• Thermal Overload Protector
• Four Air Filters

Applications

The California Air Tools 20040SM is designed for professional and shop environments where quiet operation, reliable airflow, and remote compressor management are important.

• Professional workshops
• Garages
• Machine shops
• CNC equipment
• Pneumatic tools
• General engineering applications
• Manufacturing applications
• Medium-duty compressed-air equipment
• General shop applications
• Applications requiring scheduled compressor operation
• Applications requiring remote pressure monitoring and adjustment

Maintenance

The oil-free dual-piston pump eliminates the need for compressor oil and reduces routine lubrication requirements. The pump is designed for a life cycle of 3,000+ hours before wear.

The two air filters attached to the motor-pump should be replaced every two years under normal operating conditions or annually when the compressor is exposed to dirty or dusty environments. Replacement air filter part number is 90260.

Regularly inspect the air filters, tank, fittings, hoses, electrical connections, and automatic controls to maintain safe and reliable operation.