China Custom 10 Drlling Air Compressor Mobile Screw Diesel Portable Air Compressors for Mining portable air compressor

Product Description

Working principle of diesel air compressor 1. Inhalation process: The CHINAMFG has no intake and exhaust valve groups, and the intake is only regulated by the opening and closing of a regulating valve. When the tooth groove space of the main and auxiliary rotors is transferred to the opening of the air inlet end wall of the casing, the space is large. All are discharged, and when the exhaust is completed, the tooth gap is in a vacuum state.When it turns to the air inlet, the outside air is sucked in and flows axially into the tooth grooves of the main and auxiliary rotors. When the air fills the entire tooth groove, the end surface of the intake side of the rotor is turned away from the air inlet of the casing, and the air between the tooth grooves is sealed. The above is the “intake process”
2. Sealing and conveying process: When the suction is finished, the tooth peaks of the main and auxiliary rotors are sealed with the casing, and the air in the tooth grooves no longer flows out, which is the “closed process”. The 2 rotors continue to rotate, and the tooth peaks and tooth grooves match at the suction end, and the matching surface gradually moves to the exhaust end, which is the “transportation process”.3. Compression and fuel injection process: During the conveying process of the diesel air compressor, the meshing surface gradually moves toward the exhaust end, that is, the tooth groove space between the meshing surface and the exhaust port gradually decreases, and the air in the tooth groove is gradually compressed. The pressure is gradually increased, this is the “compression process”. While compressing, lubricating oil is also sprayed into the compression chamber to mix with air due to the pressure difference.
4. Exhaust process: Precautions for using diesel air compressors: The commissioning of new machines shall be carried out by designated or approved commissioning personnel. Pay attention to whether the direction of rotation of the motor is correct when starting the machine or changing the power cord to prevent the machine head from losing oil and burning. The diesel air compressor should be placed on a flat ground, and the ground should not be soft soil. When the main pipeline is piped, the pipeline has a downward slope of 1º~2º.


1) Why customer choose us? 
ZheJiang Saifu Industry Co.Ltd provide professional air solution for customers. One-stop purchasing, we can provide the screw air compressor, air dryers air filters and all the spare parts. 
2) Where is your factory?
Our factory is in ZheJiang ,China.Both OEM & ODM service can be accepted.

3) What’s your delivery time?
Generally 7 to 10 days, if urgently order, pls contact our sales in advance.

4) How long is your air compressor warranty?
One year for the whole machine and 2 years for screw air end, except consumable spare parts.

5) How long could your air compressor be used?
Generally, more than 10 years.

6) What’s payment term?
T/T, L/C,  D/P,  Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.
7) How about your customer service?
24 hours on-line service available. 48hours problem solved promise.

8) How about your after-sales service?
  a.Provide customers with installation and commissioning online instructions. 
  b.Well-trained engineers available to overseas service. 
  c.CHINAMFG agents and after service available.


After-sales Service: 12 Month
Warranty: 1 Year
Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: Diesel Engine
Cylinder Position: Vertical


air compressor

What is the impact of humidity on compressed air quality?

Humidity can have a significant impact on the quality of compressed air. Compressed air systems often draw in ambient air, which contains moisture in the form of water vapor. When this air is compressed, the moisture becomes concentrated, leading to potential issues in the compressed air. Here’s an overview of the impact of humidity on compressed air quality:

1. Corrosion:

High humidity in compressed air can contribute to corrosion within the compressed air system. The moisture in the air can react with metal surfaces, leading to rust and corrosion in pipes, tanks, valves, and other components. Corrosion not only weakens the structural integrity of the system but also introduces contaminants into the compressed air, compromising its quality and potentially damaging downstream equipment.

2. Contaminant Carryover:

Humidity in compressed air can cause carryover of contaminants. Water droplets formed due to condensation can carry particulates, oil, and other impurities present in the air. These contaminants can then be transported along with the compressed air, leading to fouling of filters, clogging of pipelines, and potential damage to pneumatic tools, machinery, and processes.

3. Decreased Efficiency of Pneumatic Systems:

Excessive moisture in compressed air can reduce the efficiency of pneumatic systems. Water droplets can obstruct or block the flow of air, leading to decreased performance of pneumatic tools and equipment. Moisture can also cause problems in control valves, actuators, and other pneumatic devices, affecting their responsiveness and accuracy.

4. Product Contamination:

In industries where compressed air comes into direct contact with products or processes, high humidity can result in product contamination. Moisture in compressed air can mix with sensitive products, leading to quality issues, spoilage, or even health hazards in industries such as food and beverage, pharmaceuticals, and electronics manufacturing.

5. Increased Maintenance Requirements:

Humidity in compressed air can increase the maintenance requirements of a compressed air system. Moisture can accumulate in filters, separators, and other air treatment components, necessitating frequent replacement or cleaning. Excessive moisture can also lead to the growth of bacteria, fungus, and mold within the system, requiring additional cleaning and maintenance efforts.

6. Adverse Effects on Instrumentation:

Humidity can adversely affect instrumentation and control systems that rely on compressed air. Moisture can disrupt the accuracy and reliability of pressure sensors, flow meters, and other pneumatic instruments, leading to incorrect measurements and control signals.

To mitigate the impact of humidity on compressed air quality, various air treatment equipment is employed, including air dryers, moisture separators, and filters. These devices help remove moisture from the compressed air, ensuring that the air supplied is dry and of high quality for the intended applications.

air compressor

Are there differences between single-stage and two-stage air compressors?

Yes, there are differences between single-stage and two-stage air compressors. Here’s an in-depth explanation of their distinctions:

Compression Stages:

The primary difference between single-stage and two-stage air compressors lies in the number of compression stages they have. A single-stage compressor has only one compression stage, while a two-stage compressor has two sequential compression stages.

Compression Process:

In a single-stage compressor, the entire compression process occurs in a single cylinder. The air is drawn into the cylinder, compressed in a single stroke, and then discharged. On the other hand, a two-stage compressor utilizes two cylinders or chambers. In the first stage, air is compressed to an intermediate pressure in the first cylinder. Then, the partially compressed air is sent to the second cylinder where it undergoes further compression to reach the desired final pressure.

Pressure Output:

The number of compression stages directly affects the pressure output of the air compressor. Single-stage compressors typically provide lower maximum pressure levels compared to two-stage compressors. Single-stage compressors are suitable for applications that require moderate to low air pressure, while two-stage compressors are capable of delivering higher pressures, making them suitable for demanding applications that require greater air pressure.


Two-stage compressors generally offer higher efficiency compared to single-stage compressors. The two-stage compression process allows for better heat dissipation between stages, reducing the chances of overheating and improving overall efficiency. Additionally, the two-stage design allows the compressor to achieve higher compression ratios while minimizing the work done by each stage, resulting in improved energy efficiency.


Intercooling is a feature specific to two-stage compressors. Intercoolers are heat exchangers placed between the first and second compression stages. They cool down the partially compressed air before it enters the second stage, reducing the temperature and improving compression efficiency. The intercooling process helps to minimize heat buildup and reduces the potential for moisture condensation within the compressor system.


The choice between a single-stage and two-stage compressor depends on the intended application. Single-stage compressors are commonly used for light-duty applications such as powering pneumatic tools, small-scale workshops, and DIY projects. Two-stage compressors are more suitable for heavy-duty applications that require higher pressures, such as industrial manufacturing, automotive service, and large-scale construction.

It is important to consider the specific requirements of the application, including required pressure levels, duty cycle, and anticipated air demand, when selecting between a single-stage and two-stage air compressor.

In summary, the main differences between single-stage and two-stage air compressors lie in the number of compression stages, pressure output, efficiency, intercooling capability, and application suitability.

air compressor

How does an air compressor work?

An air compressor works by using mechanical energy to compress and pressurize air, which is then stored and used for various applications. Here’s a detailed explanation of how an air compressor operates:

1. Air Intake: The air compressor draws in ambient air through an intake valve or filter. The air may pass through a series of filters to remove contaminants such as dust, dirt, and moisture, ensuring the compressed air is clean and suitable for its intended use.

2. Compression: The intake air enters a compression chamber, typically consisting of one or more pistons or a rotating screw mechanism. As the piston moves or the screw rotates, the volume of the compression chamber decreases, causing the air to be compressed. This compression process increases the pressure and reduces the volume of the air.

3. Pressure Build-Up: The compressed air is discharged into a storage tank or receiver where it is held at a high pressure. The tank allows the compressed air to be stored for later use and helps to maintain a consistent supply of compressed air, even during periods of high demand.

4. Pressure Regulation: Air compressors often have a pressure regulator that controls the output pressure of the compressed air. This allows the user to adjust the pressure according to the requirements of the specific application. The pressure regulator ensures that the compressed air is delivered at the desired pressure level.

5. Release and Use: When compressed air is needed, it is released from the storage tank or receiver through an outlet valve or connection. The compressed air can then be directed to the desired application, such as pneumatic tools, air-operated machinery, or other pneumatic systems.

6. Continued Operation: The air compressor continues to operate as long as there is a demand for compressed air. When the pressure in the storage tank drops below a certain level, the compressor automatically starts again to replenish the compressed air supply.

Additionally, air compressors may include various components such as pressure gauges, safety valves, lubrication systems, and cooling mechanisms to ensure efficient and reliable operation.

In summary, an air compressor works by drawing in air, compressing it to increase its pressure, storing the compressed air, regulating the output pressure, and releasing it for use in various applications. This process allows for the generation of a continuous supply of compressed air for a wide range of industrial, commercial, and personal uses.

China Custom 10 Drlling Air Compressor Mobile Screw Diesel Portable Air Compressors for Mining   portable air compressorChina Custom 10 Drlling Air Compressor Mobile Screw Diesel Portable Air Compressors for Mining   portable air compressor
editor by CX 2023-09-27