The AIRERA CALT-25/18K is a high pressure diesel portable screw air compressor engineered for demanding drilling and mining environments. With a working pressure of 25 bar and an air delivery capacity of 18 m3 per minute, this model ensures continuous and stable compressed air supply for water well drilling, DTH drilling and quarry operations.
Powered by a reliable diesel engine and equipped with a heavy duty screw airend, the compressor performs efficiently in remote areas without access to electricity. The trailer mounted structure makes it convenient for transportation between job sites, improving flexibility and operational efficiency.
High -efficient Diesel portable/movable screw compressor

Specifications:
1, two-stage screw block is patented;,
2,Designed for a maximum pressure of 40 bar;
3,Two-stage compression; Deutz and Yuchai World well-known engines
4,SKF bearings,direct drive, no noise gears;
Application:
Movable screw air compressor are widely used in mines, water conservancy, transportation, shipbuilding, urban construction, energy, industry and other industries.
High Pressure Output
Delivers up to 25 bar working pressure, ideal for drilling and mining applications.
High Airflow Capacity
18 m3/min air delivery supports heavy duty pneumatic equipment.
Reliable Diesel Engine
Stable performance with optimized fuel efficiency.
Durable Screw Airend
Designed for long service life and continuous operation.
Trailer Mounted Design
Easy to transport and suitable for mobile field work.
Efficient Cooling System
Ensures stable operation even in high ambient temperature conditions.
User Friendly Control Panel
Real time monitoring of pressure, temperature and engine status.

| Item | Specification |
|---|---|
| Model | CALT-25/18K |
| Air Delivery | 18 m3/min |
| Working Pressure | 25 bar |
| Compression Type | Single Stage |
| Engine Type | Diesel Engine |
| Cooling Method | Air Cooling |
| Drive Type | Direct Coupled |
| Fuel Tank Capacity | 200 L |
| Noise Level | ≤78 dB(A) |
| Weight | 2600 kg |
| Dimensions | 3500 x 1800 x 2000 mm |
Water well drilling
DTH drilling
Mining and quarry operations
Tunnel construction
Infrastructure projects
Oil and gas field support

Q1: Is this compressor suitable for DTH drilling?
Yes. The 25 bar high pressure design makes it ideal for DTH and water well drilling.
Q2: Can it operate without external power supply?
Yes. The diesel engine allows full operation in remote areas.
Q3: Is it convenient for transportation?
Yes. The trailer mounted design enables easy movement between different job sites.
Q4: Can engine configuration be customized?
Yes. Engine brands and specifications can be adjusted based on customer requirements.