Road-ready 390CFM air compressor with Cummins diesel engine (AF390B-7-10)

The AIRFLOW AF390B-7-10 delivers 11.0 m³/min (390CFM) at 100 psi, or 9.4 m³/min at 150 psi, built on a heavy-duty frame for high-demand site conditions. Powered by a Cummins QSF3.8 turbocharged diesel engine paired with a single-stage oil-cooled rotary twin screw compressor, it handles sustained high-volume air supply across civil infrastructure, mining, and industrial operations.

Compressor Features

• Dual pressure rating: 11.0 m³/min at 100 psi (7 bar) or 9.4 m³/min at 150 psi (10 bar)
• Cummins QSF3.8 water-cooled, turbocharged, direct injection engine, 104 kW @ 2200 rpm
• Four air outlets: one 2″ (50A) and three ¾” (20A) for simultaneous high-volume and standard tool use
• Single-stage oil-cooled rotary twin screw compressor system
• 170 L fuel tank for extended run time between refuels
• 0.075 m³ receiver tank capacity
• Heavy-duty construction suited for harsh and remote site conditions

Applications

• Large-scale construction and civil infrastructure works
• Pipeline and underground cabling
• Mining and tunnelling operations
• Industrial plant air supply and equipment servicing
• High-demand multi-tool operations on active sites

Specifications

• Free Air Delivery: 11.0 m³/min @ 7 bar (100 psi) / 9.4 m³/min @ 10 bar (150 psi)
• Outlets: 50A (2″) x1, 20A (¾”) x3
• Cooling: Oil-cooled, rotary twin screw (single-stage)
• Receiver Tank Capacity: 0.075 m³
• Fuel Tank: 170 L
• Engine: Cummins QSF3.8, 4-cylinder, turbocharged, direct injection, water-cooled
• Engine Displacement: 3,800 cc
• Power Output: 104 kW @ 2200 rpm
• Dimensions (L × W × H): 2781 × 1280 × 1466 mm
• Weight: 1850 kg (dry), 2020 kg (wet)

Support & Servicing

Supported by Choon Huat Engineering’s fast-response EMS team and local service network. Full maintenance, repairs, and spare parts available on request.