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How to Select the Right Diesel Screw Air Compressor for Your Project (Mining, Solar, Piling & More)

Jun 25, 2026

In our previous article, we introduced Liugong Air Compressors, backed by the Chinese state-owned enterprise Liugong. Today, we’ll take a look at their product lineup and how to select the right model for your project.

When requesting quotes from us, some customers provide a specific model number, while others know the pressure or air volume they need. However, many have no understanding of air compressor specifications or their suitable applications. This requires distributors or manufacturers to have a thorough understanding of the products they sell or develop, as well as years of industry experience, so they are fully versed in the practical applications of air compressors.

First, let’s take a look at the product lineup for Liugong Air Compressors:

Diesel Engine Emission Standard Small Model
175-500 CFM (8-13 bar)
Yuchai CN III CSH300A-12 CSH350A-10 CSH450A-8 CSH500A-13 CSH530A-14
CN II CSH175A-8
Euro V CSH350A-10
Cummins CN III CSH175A-8
CN II CSH250A-8 CSH350A-10 CSH400A-8 CSH450A-10 CSH500A-15

 

Diesel Engine Emission Standard Medium Model
500-1100 CFM (13-25 bar)
Yuchai CN III CSH560A-8 CSH600A-18 CSH660A-20 CSH1020A-23
CN II CSH1100A-25
Cummins CN III CSH860A-21 CSH1020A-23 CSH1100A-25
CN II CSH780A-8 CSH750A-10 CSH780A-10 CSH900A-10
CSH600A-18 CSH780A-21 CSH1020A-23 CSH1100A-25
Euro V CSH1100A-25ST5

 

Diesel Engine Emission Standard Huge Model
1100-1820 CFM (25-40 bar)
Yuchai CN III CSH1120A-31 CSH1300A-34 CSH1300A-31 CSH1320A-35
CSH1450A-35 CSH1450A-40 CSH1620A-40 CSH4650A-20 CSH1820A-20
Cummins CN III CSH1300A-31 CSH1320A-25 CSH1320A-35
CN II CSH13A20-35
VOLVO CN III CSH1600A-35 CSH1620A-40

 

Based on the figure above, you can determine the pressure and air flow rate of the air compressor according to the target bore diameter and depth specified in your project brief, and select the appropriate air compressor model. For example, if the target depth is w × 100 m, based on our many years of industry experience, you can choose a w × 10 bar air compressor. Provided the specifications are accurate, this air compressor can generally drill a hole with a diameter of 203 mm and a depth of w × 100 m. If the bore diameter is larger, the depth will be less than w*100m; if the bore diameter is smaller, the depth will be greater than w*100m.

In addition to these two parameters, you can also select the engine type, emission class, whether the unit is skid-mounted, and whether it features variable-frequency starting, among other options.

If you are new to the industry and have not yet received a project or project brief, you can select a suitable model based on the model recommendations we have summarized for different application scenarios:

Screw Air Compressors for Mine Road Construction

Model CSH175A-8 CSH300A-12 CSH350A-10 CSH450A-8 CSH500A-14 CSH560A-8
Compressor Standard Condition Single Condition Single Condition Single Condition Single Condition Single Condition Single Condition
Volume Flow [m³/min] 5 8 10 12.5 15 16
Volume Flow [CFM] 175 300 350 450 500 560
Exhaust Pressure [bar] 8 12 10 8 14 8
Exhaust Pressure [psi] 116 174 145 116 203 116
Engine Manufacturer Cummins Yuchai Yuchai Yuchai Yuchai Yuchai
Power [kW] 36.8 96 96 96 140 140
Emission Standard Euro III China III China III China III China III China III

 

Model CSH600A-18 CSH600A-18 CSH660A-20 CSH750A-10 CSH780A-8 CSH900A-10
Compressor​ Standard Condition Single Condition Single Condition Single Condition Single Condition Single Condition Single Condition
Volume Flow [m³/min] 17 17 18 21 22 25.5
Volume Flow [CFM] 600 600 660 750 780 900
Exhaust Pressure [bar] 18 18 20 10 8 10
Exhaust Pressure [psi] 261 261 290 145 116 145
Engine Manufacturer Yuchai Cummins Yuchai Cummins Cummins Cummins
Power [kW] 162 162 191 162 162 239
Emission Standard China III China II China III China II China II China II

 

Electric Screw Air Compressor Solutions for Mining Operations

  • Air Compressor Station
  • Containerized Air Compressor Station

Advantage

Intelligent Interlocking: Enables simultaneous interlocked control of multiple air compressors; interlocking modes can be configured according to user needs.
Energy Conservation and Emissions Reduction: Optional variable frequency drives (VFDs) control motor speed based on actual air consumption, intelligently adjusting to the most energy-efficient operating plan.
Lower Costs: Low operating and maintenance costs, with a longer service life. Efficient and Convenient: Plug-and-play containerized air compressor stations offer relatively low total procurement costs. Installation requires only a level site; the unit is easy to hoist into place, convenient to transport, and causes virtually no environmental impact.
Centralized Air Supply Solution: Multiple air compressors operate in parallel to provide centralized air supply, which is then distributed to individual air outlets. This effectively reduces operating costs and improves operational efficiency.

Parameter Unit CSH350A-13A CSH460A-10A CSH580A-10A CSH700A-8A CSH580A-16A CSH860A-8A
Compressor​ Volume Flow [m³/min] 10 13 16 20 16 24
Volume Flow [CFM] 350 460 580 700 580 860
Exhaust Pressure [bar] 10 10 10 8 16 8
Exhaust Pressure [psi] 189 145 145 116 232 116
Motor​ Rated Power [kW] 90 90 110 110 132 160
Rated Speed [rpm] 1490 1490 2980 2980 1490 2980
Protection Class IP55/F IP55/F IP55/F IP55/F IP55/F IP55/F
Energy Efficiency Class IE3 IE3 IE3 IE3 IE3 IE3

 

Parameter Unit CSH660A-20A CSH750A-14A CSH750A-21A CSH860A-14A CSH1000A-17A CSH920A-21A
Compressor​ Volume Flow [m³/min] 18 21 21 24 28 26
Volume Flow [CFM] 660 750 750 860 1000 920
Exhaust Pressure [bar] 20 14 21 14 17 21
Exhaust Pressure [psi] 290 203 305 203 247 305
Lubricating Oil Capacity [L] 90 90 90 90 90 90
Engine​ Airend LGiR LGiR LGiR LGiR LGiR LGiR
Manufacturer Cummins LGiR Cummins LGiR LGiR LGiR
Model 6LATAA8.9-C325 B7-T3 L9PLUST3 L9PLUST3 L9PLUST3 L9PLUST3
Power [kW] 160 160 180 180 200 200
Max Operating Speed/Idle [rpm] 1900/1300 2000/1300 1600/1300 2000/1300 1830/1400 1930/1400
Total Displacement 8.9 6.79 8.9 8.9 8.9 8.9
Emission Standard China II China III China III China III China III China III

Screw Air Compressor Series for Solar Power Construction

Model CSH780A-21 CSH860A-21 CSH1100A-25
Standard Condition Single Condition Condition 1 Condition 2 Condition 1 Condition 2
Airflow (m³/min) 22 24 18 26-22 31-25
Airflow (CFM) 780 860 660 930-780 1100-900
Exhaust Pressure (bar) 21 21 21 16-22 16-25
Exhaust Pressure (psi) 305 305 305 232-319 232-363
Lubricating Oil Capacity (L) 80 80 80 110 110
Air End LGIR LGIR LGIR LGIR LGIR
Manufacturer Cummins Cummins Cummins Cummins Cummins
Model (Engine) 6LATA8.9-C325 B7-T3 B7-T3 L9PLUS T3 L9PLUS T3
Power (kW) 239 221 221 294 294
Max Operating Speed / Idle Speed (rpm) 1900/1300 2000/1300 1600/1300 1830/1400 1930/1400
Number of Cylinders 6 6 6 6 6
Total Displacement (L) 8.9 6.79 6.79 8.9 8.9
Emission Standard China II China III China III China III China III

Screw Air Compressor Series for Waterway Dredging

CSH1180A-31
Parameter Unit Condition 1 Condition 2
Compressor Airflow (m³/min) 29-25 31.5-26
Airflow (CFM) 1030-900 1180-920
Exhaust Pressure (bar) 18-25 18-31
Exhaust Pressure (psi) 261-363 261-450
Lubricating Oil Capacity (L) 110 110
Air End LGIR LGIR
Engine Manufacturer Yuchai Yuchai
Model YC6MK410L-C20 YC6MK410L-C20
Power (kW) 300 300
Max Operating Speed / Idle Speed (rpm) 1750/1400 1900/1400
Number of Cylinders 6 6
Total Displacement (L) 10.3 10.3
Emission Standard China II China II

Category Parameter CSH1100A-25 CSH1120A-31 CSH1300A-34 CSH1320A-35
Condition 1 Condition 2 Condition 1 Condition 2 Condition 1 Condition 2 Condition 1 Condition 2
Compressor​ Airflow (m³/min) 26-22 31-25 29-25 31.5-26 31-29 36-32 31-29 36.5-32
Airflow (CFM) 930-780 1100-900 1030-900 1180-920 1100-1030 1300-1150 1100-1030 1300-1150
Exhaust Pressure (bar) 16-22 16-25 18-25 18-31 21-25 21-35 21-35 21-35
Exhaust Pressure (psi) 232-319 232-363 261-363 261-450 305-363 305-493 305-363 305-508
Lubricating Oil Capacity (L) 110 110 120 120 120 120 120 120
Air End LGIR LGIR LGIR LGIR LGIR LGIR LGIR LGIR
Engine​ Manufacturer Cummins Cummins Yuchai Yuchai Yuchai Yuchai Cummins Yuchai
Model L9PLUST3 L9PLUST3 YC6MK400-H300 YC6MK400-H300 YC6K560-KT YC6K560-KT QSZ13-C550 YC6K16775-T300
Power (kW) 294 294 295 295 412 412 295 570
Max Operating Speed / Idle Speed (rpm) 1830/1400 1930/1400 1750/1400 1900/1400 1600/1300 1830/1300 1600/1400 1830/1400
Number of Cylinders 6 6 6 6 6 6 6 6
Total Displacement (L) 8.9 8.9 10.3 10.3 13 13 13 13
Emission Standard China III China III China III China III China III China III China III China III

 

Category Parameter CSH1450A-35 CSH1600A-35 CSH1620A-40 CSH1650A-25
Condition 1 Condition 2 Condition 1 Condition 2 Condition 1 Condition 2 Condition 1 Condition 2
Compressor​ Airflow (m³/min) 41-39 41-35 45-42 45-39 42-40 45.5-38 42-40 45.5-38
Airflow (CFM) 1450-1380 1450-1250 1600-1500 1600-1350 1500-1420 1620-1350 1500-1420 1620-1350
Exhaust Pressure (bar) 21-25 21-35 21-25 21-35 15-20 15-40 15-20 16-20
Exhaust Pressure (psi) 305-363 305-508 305-363 305-508 218-290 218-580 218-290 232-290
Lubricating Oil Capacity (L) 160 165 165 165 165 165 165 165
Air End Sullivan Sullivan Sullivan Sullivan IR IR Sullivan LGIR
Engine​ Manufacturer Yuchai Yuchai Volvo Volvo Volvo Volvo Yuchai Yuchai
Model YCK16775-T300 YCK16775-T300 TAD1643VE TAD1643VE YCGTD800-T881 YCGTD800-T881 YCK16775-T300 YCK16775-T300
Power (kW) 570 570 565 565 565 565 570 570
Max Operating Speed / Idle Speed (rpm) 1800/1300 1800/1300 1780/1300 1900/1400 1850/1300 1850/1300 1850/1300 1850/1300
Number of Cylinders 6 6 6 6 6 6 6 6
Total Displacement (L) 15.93 15.93 16 16 16 16 15.93 15.93
Emission Standard China III China III China III China III China III China III Stage III Stage III

Authorized LiuGong Distributor | Direct From China

Source genuine LiuGong diesel screw air compressors with full factory support and no middleman markups. We provide end-to-end export services including customs clearance, global shipping, and English technical documentation. Review the specs above, then contact us for a custom quote, lead time estimate, and application-specific sizing advice. Your reliable partner for heavy-duty compressor solutions worldwide.

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