China wholesaler Shenglida High Quality W-3.5/5 11kw 25HP Piston Portable Air Compressor Electric for Mining air compressor oil

Product Description

W-3.5/5 11KW 25HP piston portable air compressor electric  with a jackhammer rock drill

W-3.5/5 11KW 25HP piston portable air compressor electric Double Air Tank Diesel Portable Best-Selling Engine Oil Piston Air Compressors are mainly used to supply stable and clean compressed air to pneumatic tools and keep them working smoothly and efficiently.

Product Description

1. Valve plate and spring strip: made of special steel from Sweden and after special treatment;  highly efficient and reliable
2.Piston ring:special design;integral casting;excellent flexibility;lowest lubricating oil consumption
3. Cylinder: made of boron cast iron; wear-resistant; especially suitable for dusty condition
4. Cylinder cover: extrusion process adopted; streamlined external appearance; good heat emission performance
5. Simple structure lightweight easy to move
6. Energy saving Low cost
7. Easy operating and maintenance

1. High pressure, high efficiency, and high reliability
The cylinder head and the fan with independent patent technology are used to separate the intake chamber from the exhaust chamber, avoiding the high temperature of the exhaust chamber to the intake chamber, and the arc-shaped cooling fan is provided, and the hot part is effectively cooled by the strong wind to reduce the discharge. Gas temperature, especially in hot summer, avoiding high temperature pulling cylinder; increasing exhaust pressure, greatly improving the working efficiency and reliability of wind power.
2. Low power consumption and long life service
Designed with 4 piston rings, it adopts a “snap-and-loop” buckle structure, which automatically compensates for the opening after wear. The seal is good and the lubricating oil is low, which greatly prolongs the service life of the air compressor.
3. High efficiency and low using cost
The optimized design of the intake and exhaust valve structure, coupled with the patented cylinder head and fan, effectively reduces the intake and exhaust resistance and exhaust temperature, improves exhaust pressure and operating efficiency, and reduces operating costs.
4. Stable and reliable operation
Large-size bearings are used to increase the diameter of the crankshaft. The moving parts are optimized. The air compressor has good self-balancing, low vibration, and low noise. The thickened and enhanced gas storage tank has high strength, rigidity, long life, and stable and reliable operation.
5. Good adaptable
A complete range of products can be equipped with diesel or electric motors in a variety of forms and different environments.
6. Beautiful appearance
Using the patented design, the layout of each component is reasonable, compact, and beautiful.
7 .  High-cost performance
Little investment, low maintenance cost, high-cost performance.

Product Parameters


Model Motor power Cylinder qty*mm Rotation speed r/min F A D   m³/min Working pressure Mpa(kg/cm³) Dimension L*W*H mm Weight  KGS
W-1.8/5 S1100*11KW 3*φ100 1200 1.8 0.5(5)) 1500*600*950 300
W-2.8/5 S1100*15KW 3*φ115 1120 2.6 0.5(5) 1670*820*1150 450
W-3.0/5 S1115*18.5KW 3*φ120 1070 3 0.5(5) 1880*870*1230 460
W-3.2/7 S1125*18.5KW 3*φ125 800 3.7 0.7(7) 1910*800*1620 460
W-3.5/5 S1125*18.5KW 3*φ125 1170 3.5 0.5(5) 1880*870*1240 460
SF4.0/5 S1125*18.5KW 4*φ120 1070 4.0 0.5(5) 1960*860*1300 655
2V-3.5/5 S1125*18.5KW 4*φ115 980 3.5 0.5(5) 1800*950*1300 650
2V-4.0/5 S1125*18.5KW 4*φ120 980 4.0 0.5(5) 1800*950*1300 750


W-3.5/5 11KW 25HP piston portable air compressor Widely used in mining, water conservancy, geology, construction, building materials, transportation, textile, machinery, automobile manufacturing, and repair industries, which need compressed air-powered in various places; it is a new generation of efficient, energy-saving air compressor; especially in the mine drilling projects, can drive pneumatic tools such as pneumatic rock drills and pneumatic hammers to improve efficiency.

Detailed Photos

Cylinder: made of boron cast iron; wear insistent; especially suitable for dusty conditions, the dustproof grade is IP54.Cylinder cover: extrusion process adopted; streamlined external appearance; good heat emission performance.

Air tank: Small in size, light in weight, easy to move, Excellent air supply ability.Durable wheel: long service life, popular design.


Electric motor Simple structure, convenient control, small size, high efficiency, environmental protection and no pollution


Piston ring: Special design, integral casting; excellent flexibility, lowest lubricating oil consumption.




Customer Feedback


Company Profile


1.How do your prices compare to the manufacturer/factory?

  We are the main distributor of major construction machinery manufacturers/factories in China and keep getting the best dealer prices. From the comparison and feedback from many customers, our price is even more competitive than the factory/factory price.

2.How is the delivery time?

  In general, we can deliver ordinary machines immediately to our customers within 7 days, as we have various resources to inspect stock machines, locally and nationwide, and receive machines in a timely manner. But it takes more than 30 days for a manufacturer/factory to produce an order machine.

3.How often can you respond to customer inquiries?

  Our team is made up of a group of hardworking and dynamic people who work around the clock to respond to customer inquiries and questions. Most issues can be successfully resolved within 8 hours, while manufacturers/factories take longer to respond.

4.Which payment methods can you accept?

 Usually we can use wire transfer or letter of credit, and sometimes DP. (1) Wire transfer, 30% deposit in advance, 70% balance paid before shipment, long-term cooperation customers can present a copy of the original bill of lading. (2) Letter of credit, 100% irrevocable letter of credit without “soft   terms” from internationally recognized banks can be accepted. Please seek advice from the sales manager you work with.

5.Which clauses in the Incoterms 2571 can you use?

  We are a professional and mature international player and can handle all INCOTERMS 2571, we usually work on regular terms like FOB, CFR, CIF, CIP, DAP.

6.How long are your prices valid?

  We are a gentle and friendly supplier, never greedy for profit. Our prices remain largely stable throughout the year. We will only adjust the price according to the following 2 situations: (1) USD exchange rate: According to the international currency exchange rate, the RMB exchange rate is quite different; (2) The manufacturer/factory adjusted the machine price due to the increase of labor cost or raw material cost.

7.What logistics methods can you use for shipping?

We can transport construction machinery with various means of transport. (1) 80% of our shipping will be by the sea, to all major continents such as Africa, South America, Middle East. (2) China’s inland neighboring countries, such as Russia, Mongolia, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Turkmenistan, etc., can transport by road or rail. (3) For urgently needed light spare parts, we can provide international express services, such as DHL, TNT, UPS, FedEx, etc.

After-sales Service: Yes
Warranty: 1 Year
Lubrication Style: Lubricated
US$ 500/Piece
1 Piece(Min.Order)


Order Sample



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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

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

How does the horsepower of an air compressor affect its capabilities?

The horsepower of an air compressor is a crucial factor that directly impacts its capabilities and performance. Here’s a closer look at how the horsepower rating affects an air compressor:

Power Output:

The horsepower rating of an air compressor indicates its power output or the rate at which it can perform work. Generally, a higher horsepower rating translates to a greater power output, allowing the air compressor to deliver more compressed air per unit of time. This increased power output enables the compressor to operate pneumatic tools and equipment that require higher air pressure or greater airflow.

Air Pressure:

The horsepower of an air compressor is directly related to the air pressure it can generate. Air compressors with higher horsepower ratings have the capacity to produce higher air pressures. This is particularly important when operating tools or machinery that require specific air pressure levels to function optimally. For example, heavy-duty pneumatic tools like jackhammers or impact wrenches may require higher air pressure to deliver the necessary force.

Air Volume:

In addition to air pressure, the horsepower of an air compressor also affects the air volume or airflow it can provide. Higher horsepower compressors can deliver greater volumes of compressed air, measured in cubic feet per minute (CFM). This increased airflow is beneficial when using pneumatic tools that require a continuous supply of compressed air, such as paint sprayers or sandblasters.

Duty Cycle:

The horsepower rating of an air compressor can also influence its duty cycle. The duty cycle refers to the amount of time an air compressor can operate continuously before it needs to rest and cool down. Higher horsepower compressors often have larger and more robust components, allowing them to handle heavier workloads and operate for longer periods without overheating. This is particularly important in demanding applications where continuous and uninterrupted operation is required.

Size and Portability:

It’s worth noting that the horsepower rating can also affect the physical size and portability of an air compressor. Higher horsepower compressors tend to be larger and heavier due to the need for more substantial motors and components to generate the increased power output. This can impact the ease of transportation and maneuverability, especially in portable or mobile applications.

When selecting an air compressor, it is essential to consider the specific requirements of your intended applications. Factors such as desired air pressure, airflow, duty cycle, and portability should be taken into account. It’s important to choose an air compressor with a horsepower rating that aligns with the demands of the tools and equipment you plan to operate, ensuring optimal performance and efficiency.

Consulting the manufacturer’s specifications and guidelines can provide valuable information on how the horsepower rating of an air compressor corresponds to its capabilities and suitability for different tasks.

air compressor

How do you choose the right size of air compressor for your needs?

Choosing the right size of air compressor is essential to ensure optimal performance and efficiency for your specific needs. Here are some factors to consider when selecting the appropriate size:

1. Air Demand: Determine the air demand requirements of your applications. Calculate the total CFM (Cubic Feet per Minute) needed by considering the air consumption of all the pneumatic tools and equipment that will be operated simultaneously. Choose an air compressor with a CFM rating that meets or exceeds this total demand.

2. Pressure Requirements: Consider the required operating pressure for your applications. Check the PSI (Pounds per Square Inch) rating of the tools and equipment you will be using. Ensure that the air compressor you choose can deliver the necessary pressure consistently.

3. Duty Cycle: Evaluate the duty cycle of the air compressor. The duty cycle represents the percentage of time the compressor can operate within a given time period without overheating or experiencing performance issues. If you require continuous or heavy-duty operation, choose a compressor with a higher duty cycle.

4. Power Source: Determine the available power source at your location. Air compressors can be powered by electricity or gasoline engines. Ensure that the chosen compressor matches the available power supply and consider factors such as voltage, phase, and fuel requirements.

5. Portability: Assess the portability requirements of your applications. If you need to move the air compressor frequently or use it in different locations, consider a portable or wheeled compressor that is easy to transport.

6. Space and Noise Constraints: Consider the available space for installation and the noise restrictions in your working environment. Choose an air compressor that fits within the allocated space and meets any noise regulations or requirements.

7. Future Expansion: Anticipate any potential future expansions or increases in air demand. If you expect your air demand to grow over time, it may be wise to choose a slightly larger compressor to accommodate future needs and avoid the need for premature replacement.

8. Budget: Consider your budgetary constraints. Compare the prices of different air compressor models while ensuring that the chosen compressor meets your specific requirements. Keep in mind that investing in a higher-quality compressor may result in better performance, durability, and long-term cost savings.

By considering these factors and evaluating your specific needs, you can choose the right size of air compressor that will meet your air demand, pressure requirements, and operational preferences, ultimately ensuring efficient and reliable performance.

China wholesaler Shenglida High Quality W-3.5/5 11kw 25HP Piston Portable Air Compressor Electric for Mining   air compressor oilChina wholesaler Shenglida High Quality W-3.5/5 11kw 25HP Piston Portable Air Compressor Electric for Mining   air compressor oil
editor by CX 2023-10-17

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