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Diesel-driven screw air compressors combine the power of diesel engines with the efficiency of screw air compressors, and are particularly suitable for operating scenarios without power supply or in harsh environments.
| Model | RKYII-27/12 | RKYII-30/10 | RKYII-18/25 | |||
| Volume flow (m³/min) | 27 | 30 | 18 | |||
| Working pressure (Barg) | 12 | 10 | 25 | |||
| Fuel tank volume(L) | 420 | 420 | 420 | |||
| Maximum ambient temperature(℃) | 50 | 50 | 50 | |||
| Compression stage | 2 | 2 | 2 | |||
| Engine brand | CUMMINS | CUMMINS | CUMMINS | |||
| Engine model | QSL8.9-C325 | QSL8.9-C325 | QSL8.9-C325 | |||
| Engine power(KW) | 242 | 242 | 242 | |||
| Maximum engine speed(Rpm) | 2100 | 2100 | 2100 | |||
| Minimum engine speed(Rpm) | 1500 | 1500 | 1500 | |||
| Wheels Qty | 4 | 4 | 4 | |||
| Noise level(dB) | 88±3 | 88±3 | 88±3 | |||
| Overall weight (kg) | 4800 | 5150 | 5310 | |||
| Dimensions(L*W*H)mm | 5400*2100*2550 | 5400*2100*2550 | 5400*2100*2550 | |||
| Air outlet (inch) | 5 pcs in total (2*G1-1/2, 2*G1-1/4, 1*G1) | |||||
Features and Advantages
1. No External Power Required Diesel engine-driven, suitable for remote areas (such as mines and oil fields), field operations, or sites with insufficient power infrastructure.
2. High Mobility Typically designed to be mobile (mounted on a vehicle or trailer), these units can be quickly moved to different construction sites, adapting to frequent relocations.
3. Strong Environmental Adaptability Resistant to extreme temperatures, humidity, and dust, some models feature explosion-proof designs, making them suitable for high-risk areas such as petrochemical and mining operations.
4. Large Displacement & Stable Air Supply Screw technology provides continuous and stable compressed air output with a wide range of displacements (typically 20-40 CFM to 1000+ CFM), meeting the needs of large tools.
5. Optimized Fuel Efficiency Modern diesel engines utilize electronic fuel injection or turbocharging technology, and when combined with variable-frequency screw compressors, they dynamically adjust speed, reducing fuel consumption.
6. Low-Maintenance Design Both the diesel engine and the screw airend utilize long-lasting filtration systems and wear-resistant materials, reducing downtime and maintenance.
Application Industries
1. Mining and Quarrying: Provides air supply for equipment such as rock drills and jackhammers, suitable for harsh environments such as open-pit or underground operations.
2. Oil and Gas: Used for pneumatic tools on drilling platforms and for pipeline maintenance. Explosion-proof models are suitable for use in flammable and explosive environments.
3. Construction and Road Construction: Powers concrete sprayers and pile foundation equipment. The mobile design accommodates site relocation needs.
4. Agriculture and Forestry: Provides air supply for sprinkler systems and wood processing equipment in remote areas.
5. Emergency and Disaster Relief: Provides emergency air supply during power outages (e.g., firefighting and post-disaster reconstruction).
6. Military and Defense: Used for field maintenance, engineering support, and other scenarios where reliable power is unavailable.
FAQ
Q1: What are the main differences between diesel-powered and electric-powered air compressors?
A: Power Source: Diesel engines are powered by burning diesel fuel, requiring no electricity and are suitable for off-grid or mobile applications; electric air compressors rely on the power grid.
Mobility: Diesel engines are typically mounted on trailers or skids for easy field operation; electric models are mostly fixed.
Emissions: Diesel engines require exhaust gas treatment (such as black smoke and particulate matter), while electric models are more environmentally friendly.
Q2. Usage and Operation
Q: What should I check before starting?
A: Diesel system: Fuel level, oil line leaks, and filter condition.
Lubrication system: Compressor oil level and oil quality (turbidity or impurities).
Cooling system: Coolant level and radiator cleanliness.
Air system: Check the intake filter for blockage and exhaust valve function.
Q3: How do I properly start and stop a diesel air compressor?
A: Starting: Open the fuel valve → Preheat (in a low-temperature environment) → Idle for 1-2 minutes → Slowly increase the pressure to operating pressure.
Shutdown: Run the engine unloaded for 3-5 minutes (to cool down) → Turn off the diesel engine → Cut off the fuel valve.
Q4: Why does air compressor oil need to be changed regularly?
A: Long-term operation at high temperatures can cause oxidation and carbon deposits in the oil, leading to reduced lubrication performance, accelerated rotor wear, and even high-temperature shutdown.
Q5. Common Faults and Solutions
Q: Possible causes of diesel engine starting difficulties?
A: Fuel issues: Insufficient fuel, clogged filter, air in the oil line.
Battery/Starter: Low battery, starter failure (common in cold regions).
Environmental factors: Failure to use the preheater in low temperatures.
Diesel-driven screw air compressors combine the power of diesel engines with the efficiency of screw air compressors, and are particularly suitable for operating scenarios without power supply or in harsh environments.
| Model | RKYII-27/12 | RKYII-30/10 | RKYII-18/25 | |||
| Volume flow (m³/min) | 27 | 30 | 18 | |||
| Working pressure (Barg) | 12 | 10 | 25 | |||
| Fuel tank volume(L) | 420 | 420 | 420 | |||
| Maximum ambient temperature(℃) | 50 | 50 | 50 | |||
| Compression stage | 2 | 2 | 2 | |||
| Engine brand | CUMMINS | CUMMINS | CUMMINS | |||
| Engine model | QSL8.9-C325 | QSL8.9-C325 | QSL8.9-C325 | |||
| Engine power(KW) | 242 | 242 | 242 | |||
| Maximum engine speed(Rpm) | 2100 | 2100 | 2100 | |||
| Minimum engine speed(Rpm) | 1500 | 1500 | 1500 | |||
| Wheels Qty | 4 | 4 | 4 | |||
| Noise level(dB) | 88±3 | 88±3 | 88±3 | |||
| Overall weight (kg) | 4800 | 5150 | 5310 | |||
| Dimensions(L*W*H)mm | 5400*2100*2550 | 5400*2100*2550 | 5400*2100*2550 | |||
| Air outlet (inch) | 5 pcs in total (2*G1-1/2, 2*G1-1/4, 1*G1) | |||||
Features and Advantages
1. No External Power Required Diesel engine-driven, suitable for remote areas (such as mines and oil fields), field operations, or sites with insufficient power infrastructure.
2. High Mobility Typically designed to be mobile (mounted on a vehicle or trailer), these units can be quickly moved to different construction sites, adapting to frequent relocations.
3. Strong Environmental Adaptability Resistant to extreme temperatures, humidity, and dust, some models feature explosion-proof designs, making them suitable for high-risk areas such as petrochemical and mining operations.
4. Large Displacement & Stable Air Supply Screw technology provides continuous and stable compressed air output with a wide range of displacements (typically 20-40 CFM to 1000+ CFM), meeting the needs of large tools.
5. Optimized Fuel Efficiency Modern diesel engines utilize electronic fuel injection or turbocharging technology, and when combined with variable-frequency screw compressors, they dynamically adjust speed, reducing fuel consumption.
6. Low-Maintenance Design Both the diesel engine and the screw airend utilize long-lasting filtration systems and wear-resistant materials, reducing downtime and maintenance.
Application Industries
1. Mining and Quarrying: Provides air supply for equipment such as rock drills and jackhammers, suitable for harsh environments such as open-pit or underground operations.
2. Oil and Gas: Used for pneumatic tools on drilling platforms and for pipeline maintenance. Explosion-proof models are suitable for use in flammable and explosive environments.
3. Construction and Road Construction: Powers concrete sprayers and pile foundation equipment. The mobile design accommodates site relocation needs.
4. Agriculture and Forestry: Provides air supply for sprinkler systems and wood processing equipment in remote areas.
5. Emergency and Disaster Relief: Provides emergency air supply during power outages (e.g., firefighting and post-disaster reconstruction).
6. Military and Defense: Used for field maintenance, engineering support, and other scenarios where reliable power is unavailable.
FAQ
Q1: What are the main differences between diesel-powered and electric-powered air compressors?
A: Power Source: Diesel engines are powered by burning diesel fuel, requiring no electricity and are suitable for off-grid or mobile applications; electric air compressors rely on the power grid.
Mobility: Diesel engines are typically mounted on trailers or skids for easy field operation; electric models are mostly fixed.
Emissions: Diesel engines require exhaust gas treatment (such as black smoke and particulate matter), while electric models are more environmentally friendly.
Q2. Usage and Operation
Q: What should I check before starting?
A: Diesel system: Fuel level, oil line leaks, and filter condition.
Lubrication system: Compressor oil level and oil quality (turbidity or impurities).
Cooling system: Coolant level and radiator cleanliness.
Air system: Check the intake filter for blockage and exhaust valve function.
Q3: How do I properly start and stop a diesel air compressor?
A: Starting: Open the fuel valve → Preheat (in a low-temperature environment) → Idle for 1-2 minutes → Slowly increase the pressure to operating pressure.
Shutdown: Run the engine unloaded for 3-5 minutes (to cool down) → Turn off the diesel engine → Cut off the fuel valve.
Q4: Why does air compressor oil need to be changed regularly?
A: Long-term operation at high temperatures can cause oxidation and carbon deposits in the oil, leading to reduced lubrication performance, accelerated rotor wear, and even high-temperature shutdown.
Q5. Common Faults and Solutions
Q: Possible causes of diesel engine starting difficulties?
A: Fuel issues: Insufficient fuel, clogged filter, air in the oil line.
Battery/Starter: Low battery, starter failure (common in cold regions).
Environmental factors: Failure to use the preheater in low temperatures.
