CALT 33m³/min Flow, 25bar Pressure, All-terrain Move, 24h Stable Running Diesel Portable Compressor
AIRERA’s industry-leading heavy-duty flagship. Delivering an extraordinary $33text{ m}^3/text{min}$ ultra-large flow and $25text{ bar}$ high pressure, it is tailor-made for deep-well drilling, large-scale mining, and cutting-edge heavy industrial needs. Equipped with a rugged all-terrain chassis, it conquers extreme environments like deserts and rocky terrains effortlessly. Powered by a top-tier industrial engine and enhanced cooling, it supports 24/7 non-stop, stable full-load operation. Choose AIRERA for the ultimate in high efficiency, durability, and reliable air power.
- Diesel engine
In the intake system, exhaust gas turbocharging is adopted to improve the power performance.Meet the Euro II emission standards, high-performance oil pump, low fuel consumption.The overall structure is compact and the appearance is beautiful and generous.Covering the whole country's after-sales service network, users can get rapid and complete service.

- Cooling system
The cooler with large heat dissipation area is designed, which is suitable for harsh environments such as high temperature and high humidity in the field.Enlarged 30% cooling system to keep 25% cooling performance than old models for long-term working in the high-temp ambient. Environment. Unique fin and channel design, good heat dissipation, low pressure and easy cleaning.Low speed and low noise axial fan, low running noise; High temperature resistance and long service life.Horizontal exhaust to avoid hot air backflow and optimize cooling effect.
- Air end
The rotor is made of German processing equipment-to ensure the dimensional accuracy of parts.The bearing adopts the world brand SKF--- prolong the service life.High-load-resistant design-working pressure can reach 1.6Mpa.
| ITEM | UNIT | MODEL CALT 33-25K |
|---|---|---|
| Air capacity | m³/min | 33 |
| Working pressure | MPa | 2.5 |
| Weight | kg | 6900 |
| L×W×H | mm |
4573×2160×2601 |
| Type No.× Qty | 8.25-16×4 | |
| Diesel engine | ||
| Model | QSZ13-C550-30 | |
| Type | Vertical, in-line, water-cooled | |
| Sunction | Turbo charger | |
| Dia. of cylinder×Journey×amount | 130×163×6 | |
| Displacement L | 13 | |
| Rated speed | r/min | 1800 |
| Idle speed | r/min | 1300 |
| Rated Power | kW(HP) | 410(550) |
| Engine lubricant capacity | L | 35 |
| Diesel capacity | L | 755 |
| Battery | V | 24 |
| Compressor | ||
| Pressure stage | 2 | |
| Compressor oil capacity | L | 100 |
| Amount size×Qty |
G2×1,G3/4×1 |
|
| Notice | CA: Screw compressor, LT:Portable ,All the models could be customized into skid-mounted type. |

Absolutely. The machine is optionally equipped with an intake pre-heating system and heavy-duty batteries, allowing easy one-touch starts even in bitter cold down to $-20^circtext{C}$. Meanwhile, the engine's smart altitude compensation automatically adjusts air intake and fuel injection, ensuring a stable and powerful $25text{ bar}$ output even at altitudes above 3,000 meters.
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