China Custom Industrial Electric Stationary Direct Driven DC Compressor for Press Air air compressor price

Product Description

Model: DC-30A
Free air delivery: 3.6m3/min
Working pressure: 8bar
Screw air end rotor lobe: 5:6
Brand of screw air end: CHINAMFG ZheJiang  AB+ series with 6 pcs bearings
Control: Mircro PLC controller
Driven: direct coupling
Cooling: by air
Electric motor: 30hp 22kW 380V/3PH/50HZ,IP54 protection level
Discharge temperature: less than ambient +8 ºC
Noise: less than 68 dB(A)
Air outlet size: G1″
Dimension: 1330*830*1265mm
Weight: 400kg
Warranty: 24 months for the screw air end,12 months for the whole set compressor except air filter,oil filter and oil/air separator.
Delivery time: 25 days after receiving deposit.



Air end
1.SAP type line to maximize the screw compression efficiency Similar products save more than 5%
2.High machining accuracy, low vibration of main machine and low noise
3.Reached National Level 1 Energy Efficiency Standard.

1.Efficient design, bearings, ensure the long life of the motor.
2.IP54 protected fully enclosed motor, worry-free in harsh conditions run.
3.Standard phase sequence protection to prevent reversal.

Large Touch Master Controller
1.Matching inverter exclusive customization.
2.LCD Chinese and English switch display.
3.Rich self-diagnostic functions such as fault alarm, maintenance reminder, automatic shutdown, etc.
4.Clock function, can set timing switch.
5.Multiple signal outputs: RS485 port.

1.ABB / CHINAMFG brand vector control frequency conversion system, frequency conversion response speed is faster.
2.Constant pressure output to remove pressure fluctuation and off-load.
3.Constant temperature output at 9~85°C, Low starting current to protect components,15% energy-saving.

Pre-filter Protection
1.Unique pre-filter cover design to keep the inside of the machine clean and extend the maintenance cycle.
2.Easy to disassemble and clean, and can be reused.

Efficient Cooling System
1.Adopting large-size high-efficiency cooler to cope with harsh working conditions.
2.Adopt independent large fan combined with oil cooling system, lower temperature and more stable.

Electrical System
1.Standardized design, safe and reliable.
2.Professional wiring interface,the wiring is reasonable, simple, clear and easy to maintain.,
3.and CHINAMFG are equipped with a series of high-level components, and their safe use is guaranteed for a long time.

Direct Drive
1.1: 1 direct drive, stable and efficient.
2.Adopts more mature split-type direct drive, which is more reliable and easier to maintain than integrated drive.
3.Imported brand, large size coupling to ensure the long life of the drive system.

For some areas with poor operating conditions such as high temperature and high humidity,large-area plate heat exchangers and high-efficiency air coolers are used.

Exhaust pipe
The exhaust pipe adopts double-layer bellows,and the oil passage adopts special temperature resistance of 125 °C high-pressure hose.

Technical Parameters:

Model Discharge Pressure Discharge Air Volume Motor Power Dimension(mm) Discharge Pipc.Dia Unit Weight
SEF350Z 0.8MPa 10.0m³/min 55KW 1900X1270X1570 1X2″ 1560KG
1.0MPa 9.0m³/min
1.3MPa 7.8m³/min
SEF460Z 0.8MPa 13m³/min 75KW 1900X1270X1570 1X2″ 1731KG
1.0MPa 11.8m³/min
1.3MPa 9.6m³/min
SEF565Z 0.8MPa 16.0m³/min 90KW 2620X1670X1800 1X2″ 2260KG
1.0MPa 14.2m³/min
1.3MPa 12.2m³/min
SEF710Z 0.8MPa 20.5m³/min 110KW 2620X1670X1800 1X2″ 2770KG
1.0MPa 17.8m³/min
1.3MPa 15.5m³/min
SEF780Z 0.8MPa 23.5m³/min 132KW 2620x1670x1800 1×2″ 2926KG
1.0MPa 20.5m³/min
1.3MPa 17.0m³/min
SEF1060Z 0.8MPa 30.0m³/min 160KW 3070X2140X2130 DN80 4100KG
1.0MPa 26.0m³/min
1.3MPa 22.0m³/min
SEF1165Z 0.8MPa 32.0m³/min 185KW 3070X2140X2130 DN80 4400KG
1.0MPa 28.5m³/min
1.3MPa 25.0m³/min
SEF1270Z 0.8MPa 35.0m³/min 200KW 3420X2220X2130 DN100 5200KG
1.0MPa 31.0m³/min
1.3MPa 27.0m³/min
SEF1420Z 0.8MPa 41.0m³/min 250KW 3420x2220X2130 DN100 5300KG
1.0MPa 39.0m³/min
1.3MPa 35.0m³/min
SEF1765Z 0.8MPa 50m³/min 280KW 4200X2380X2550 DN125 5600KG
1.0MPa 42m³/min
SEF1980Z 0.8MPa 56m³/min 315KW 4200X2380X2550 DN125 7980KG
1.0MPa 50m³/min
1.3MPa 43m³/min
SEF2190ZW 0.8MPa 63m³/min 355KW 3690X2350X2150 DN125 7350KG
1.0MPa 55m³/min
1.3MPa 47m³/min
SEF2580ZW 0.8MPa 73m³/min 400KW 4070X2300X2250 DN150 8100KG
1.0MPa 63m³/min
1.3MPa 53m³/min
SEF2860ZW 0.8MPa 81m³/min 450KW 4070X2300X2250 DN150 8500KG
1.0MPa 71m³/min
1.3MPa 60m³/min
SEF3145ZW 0.8MPa 89m³/min 500KW 4300X2350X2150 DN150 9000KG
1.0MPa 79m³/min
1.3MPa 67m³/min
SEF3530ZW 0.8MPa 100m³/min 560KW 5000X2350X2150 DN200 10000KG
SEF3885ZW 0.8MPa 110m³/min 630KW 5000X2350X2150 DN200 11000KG


1.The brand power,reliable quality, stable performance.
   The harsh thermal equilibrium serviceability can guarantee that the machine work effectively under high temperature environment  (≤40ºC);

2.Unique patent design, light load startup system;

3.Efficient cooling system, divided into 3 parts: water- cooled ,mid- cold, oil cold, which ensure the reliable operation of diesel engine, and it’s suitable for high temperature working environment;

4.Independent research and development of the opposite door design, rational layout, which is easy to do regular maintenace ,with advantages of the fixed and portable compressor;

5.A single point lifting, forklift hole device, equipped with drag ring.It is suitable for repair car transport, easy to transfer and installation of the unit;

6.Waterproof and dustproof design, which is suitable for outdoor hard working environment;

7.According to customer requirements, the heating boiler and remote components is available for cold starting;

Product Applications:

Packaging and Shipping

Our workers pack the tested air compressors in wooden cases. After the packaging is completed, the air compressor will be transported to the port and then shipping to the world.

Our Exhibition

Our service

1.Pre-sale service:

Act as a good adviser and assistant of clients enable them to get rich and generous returns on their investments . 
1.Select equipment model.
2.Design and manufacture products according to client’s special requirement ; 
3.Train technical personnel for clients .

2.Services during the sale:

1.Pre-check and accept products ahead of delivery .
2. Help clients to draft solving plans .

3.After-sale services:

Provide considerate services to minimize clients’ worries.
1.Complete After-sales service,professional engineers available to service machinery at home or oversea.
2. 24 hours technical support by e-mail.
3.Other essential technological service.

Contact details:

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After-sales Service: Online support
Warranty: 12 Months
Lubrication Style: Oil-free


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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

How are air compressors employed in the petrochemical industry?

Air compressors play a vital role in the petrochemical industry, where they are employed for various applications that require compressed air. The petrochemical industry encompasses the production of chemicals and products derived from petroleum and natural gas. Here’s an overview of how air compressors are utilized in the petrochemical industry:

1. Instrumentation and Control Systems:

Air compressors are used to power pneumatic instrumentation and control systems in petrochemical plants. These systems rely on compressed air to operate control valves, actuators, and other pneumatic devices that regulate processes such as flow control, pressure control, and temperature control. Compressed air provides a reliable and clean source of energy for these critical control mechanisms.

2. Pneumatic Tools and Equipment:

Petrochemical plants often utilize pneumatic tools and equipment for various tasks such as maintenance, repair, and construction activities. Air compressors supply the necessary compressed air to power these tools, including pneumatic drills, impact wrenches, grinders, sanders, and painting equipment. The versatility and convenience of compressed air make it an ideal energy source for a wide range of pneumatic tools used in the industry.

3. Process Air and Gas Supply:

Petrochemical processes often require a supply of compressed air and gases for specific applications. Air compressors are employed to generate compressed air for processes such as oxidation, combustion, and aeration. They may also be used to compress gases like nitrogen, hydrogen, and oxygen, which are utilized in various petrochemical reactions and treatment processes.

4. Cooling and Ventilation:

Petrochemical plants require adequate cooling and ventilation systems to maintain optimal operating conditions and ensure the safety of personnel. Air compressors are used to power cooling fans, blowers, and air circulation systems that help maintain the desired temperature, remove heat generated by equipment, and provide ventilation in critical areas.

5. Nitrogen Generation:

Nitrogen is widely used in the petrochemical industry for applications such as blanketing, purging, and inerting. Air compressors are utilized in nitrogen generation systems, where they compress atmospheric air, which is then passed through a nitrogen separation process to produce high-purity nitrogen gas. This nitrogen is used for various purposes, including preventing the formation of explosive mixtures, protecting sensitive equipment, and maintaining the integrity of stored products.

6. Instrument Air:

Instrument air is essential for operating pneumatic instruments, analyzers, and control devices throughout the petrochemical plant. Air compressors supply compressed air that is treated and conditioned to meet the stringent requirements of instrument air quality standards. Instrument air is used for tasks such as pneumatic conveying, pneumatic actuators, and calibration of instruments.

By employing air compressors in the petrochemical industry, operators can ensure reliable and efficient operation of pneumatic systems, power various tools and equipment, support critical processes, and maintain safe and controlled environments.

air compressor

Can air compressors be integrated into automated systems?

Yes, air compressors can be integrated into automated systems, providing a reliable and versatile source of compressed air for various applications. Here’s a detailed explanation of how air compressors can be integrated into automated systems:

Pneumatic Automation:

Air compressors are commonly used in pneumatic automation systems, where compressed air is utilized to power and control automated machinery and equipment. Pneumatic systems rely on the controlled release of compressed air to generate linear or rotational motion, actuating valves, cylinders, and other pneumatic components. By integrating an air compressor into the system, a continuous supply of compressed air is available to power the automation process.

Control and Regulation:

In automated systems, air compressors are often connected to a control and regulation system to manage the compressed air supply. This system includes components such as pressure regulators, valves, and sensors to monitor and adjust the air pressure, flow, and distribution. The control system ensures that the air compressor operates within the desired parameters and provides the appropriate amount of compressed air to different parts of the automated system as needed.

Sequential Operations:

Integration of air compressors into automated systems enables sequential operations to be carried out efficiently. Compressed air can be used to control the timing and sequencing of different pneumatic components, ensuring that the automated system performs tasks in the desired order and with precise timing. This is particularly useful in manufacturing and assembly processes where precise coordination of pneumatic actuators is required.

Energy Efficiency:

Air compressors can contribute to energy-efficient automation systems. By incorporating energy-saving features such as Variable Speed Drive (VSD) technology, air compressors can adjust their power output according to the demand, reducing energy consumption during periods of low activity. Additionally, efficient control and regulation systems help optimize the use of compressed air, minimizing waste and improving overall energy efficiency.

Monitoring and Diagnostics:

Integration of air compressors into automated systems often includes monitoring and diagnostic capabilities. Sensors and monitoring devices can be installed to collect data on parameters such as air pressure, temperature, and system performance. This information can be used for real-time monitoring, preventive maintenance, and troubleshooting, ensuring the reliable operation of the automated system.

When integrating air compressors into automated systems, it is crucial to consider factors such as the specific requirements of the automation process, the desired air pressure and volume, and the compatibility of the compressor with the control and regulation system. Consulting with experts in automation and compressed air systems can help in designing an efficient and reliable integration.

In summary, air compressors can be seamlessly integrated into automated systems, providing the necessary compressed air to power and control pneumatic components, enabling sequential operations, and contributing to energy-efficient automation processes.

air compressor

What are the different types of air compressors?

There are several different types of air compressors, each with its own unique design and operating principle. Here’s an overview of the most commonly used types:

1. Reciprocating Air Compressors: Reciprocating air compressors, also known as piston compressors, use one or more pistons driven by a crankshaft to compress air. They operate by drawing air into a cylinder, compressing it with the piston’s up-and-down motion, and discharging the compressed air into a storage tank. Reciprocating compressors are known for their high pressure capabilities and are commonly used in industrial applications.

2. Rotary Screw Air Compressors: Rotary screw air compressors utilize two interlocking screws to compress air. As the male and female screws rotate, the air is trapped between them and gradually compressed as it moves along the screw threads. These compressors are known for their continuous duty cycle, high efficiency, and quiet operation. They are widely used in industrial, commercial, and automotive applications.

3. Centrifugal Air Compressors: Centrifugal air compressors rely on the principle of centrifugal force to compress air. They use a high-speed impeller to accelerate the incoming air and then convert the kinetic energy into pressure energy. Centrifugal compressors are commonly used in large-scale industrial applications that require high volumes of compressed air.

4. Rotary Vane Air Compressors: Rotary vane air compressors employ a rotor with sliding vanes that compress the air. As the rotor rotates, the vanes slide in and out of the rotor, creating compression chambers. Air is drawn in, trapped, and compressed as the vanes move. These compressors are compact, reliable, and suitable for small to medium-sized applications.

5. Axial Flow Air Compressors: Axial flow air compressors are primarily used in specialized applications such as aircraft engines and gas turbines. They utilize a series of rotating and stationary blades to compress air in a continuous flow. Axial flow compressors are known for their high flow rates and are designed for applications that require large volumes of compressed air.

6. Scroll Air Compressors: Scroll air compressors consist of two interlocking spirals or scrolls that compress the air. One spiral remains stationary while the other orbits around it, creating a series of expanding and contracting pockets that compress the air. Scroll compressors are compact, reliable, and commonly used in applications where low noise and oil-free air are required, such as medical and dental equipment.

These are just a few examples of the different types of air compressors available. Each type has its own advantages, capabilities, and ideal applications. The choice of air compressor depends on factors such as required pressure, flow rate, duty cycle, noise level, oil-free operation, and specific application requirements.

China Custom Industrial Electric Stationary Direct Driven DC Compressor for Press Air   air compressor priceChina Custom Industrial Electric Stationary Direct Driven DC Compressor for Press Air   air compressor price
editor by CX 2023-12-26