
Portable diesel · MACY
MACY 12/8portable air compressor | Masia Compressors
Portable air compressor with Cummins diesel engine: 424 cfm at 125 psi, German compressor unit with SKF bearings and 160-liter fuel tank.

424 cfmFlow rate
125 psiPressure
110 kWCummins engine
160 LFuel tank
Built towork on the job site
Components that explain its reliability in mining, construction and industrial projects.


- Cummins diesel enginePremium-quality Cummins QSC3.9-C130-32 engine with turbocharger technology for fuel savings and 110 kW of power.
- German compressor unitMade in Germany to strict quality standards and fitted with SKF bearings for long service life. 2-stage compression for higher flow with lower consumption.
- Separator tankReduces pressure leaks and energy losses, and delivers excellent air quality with low lubricant carryover.
- Heat exchangersMade of high-quality aluminum; the fan motor responds to oil temperature, reducing wear and energy cost.
- Stainless steel pipingGreatly reduce oil leaks and withstand high and low temperatures and high pressure.
- Protected electrical panelDesigned with German components and protections that ensure optimal equipment performance.
Specificationstechnical
Operating parameters and capacities per the Masia Compressors technical data sheet.
Flow rate: 424 cfm · Pressure: 125 psi
| Parameter | Value |
|---|---|
| Atmospheric pressure (Kg/cm2) | 1,033 |
| Compression stages | 2 |
| Ambient temperature (⁰C) | ≤46 |
| Relative humidity (%) | 80 |
| Discharge temperature (⁰C) | ≤ Ambient temperature + 15 ⁰C |
| Displacement control (%) | 50~100 |
| Diesel engine | Cummins QSC3.9-C130-32 · turbocharged, air-cooled |
| Engine speed (rpm) (rated) | 2.300 |
| Engine speed (rpm) (no load) | 1.700 |
| Engine power (kW) | 110 |
| Number of cylinders | 4 |
| Parameter | Value |
|---|---|
| Drive method | Direct drive 1:1 |
| Lubricant grade | ISO 46 |
| Lubricant quantity (liters) (compressor) | 90 |
| Lubricant quantity (liters) (engine) | 11 |
| Coolant quantity (liters) (engine) | 27 |
| Fuel tank capacity (liters) | 160 |
| Outlet connection (inch) | 1x 1-1/2’’ ; 1x 3/4’’ |
| Weight (kg) | 1.800 |
| Dimensions (m) (without trailer, without tires) | 3,24 x 1,88 x 2,10 |
| Protection devices | High temperature, high voltage, overcurrent lockout, phase loss, unstable voltage |
Specifications are taken from the Masia Compressors technical data sheet; values may vary depending on configuration. Check with our team.
Complete your systemwith treatment and monitoring
Dry air with a dryer
Untreated compressed air contains moisture, aerosols and particles that damage your system. An air dryer is essential to protect it.
- Eco-friendly R410A refrigerant with low energy consumption and no ozone depletion.
- Cross-flow heat exchanger with low pressure drop.
- Lossless condensate drain: zero compressed air waste.
- Advanced control that ensures dry air and prevents freezing at low load.
- Pressure dew point of 3 °C / 37 °F (100 % relative humidity at 20 °C / 68 °F).
Remote control
Monitor and optimize your equipment's performance.
- Control your compressor from your computer or phone and adjust its operating parameters.
- Helps save energy and reduce costs.
- Lets you monitor your compressed air network.
- Shows alerts and potential equipment issues.
Componentsand their origin
| Component | Origin |
|---|---|
| Compressor unit | Germany |
| Diesel engine (Cummins) | United States |
| Bearings | Sweden |
| Intake valve | Austria |
| Pressure sensor | Denmark |
| Electrical control system | France |
| Controller | Belgium |
| Filters and lubricant | Germany |
| Coupling | Germany |
| Drain valve | Italy |
MACY 12/8 technical data sheet
Download the PDF with all specifications (Spanish).
