China Good quality Permanent Magnet Variable Speed Screw Air Compressor Epmseries 7.5kw 11kw 15kw 22kw 37kw air compressor lowes

Product Description

Product Presentation

EPM Series Parameter Table
Model E7.5PM E11PM E15PM E22PM E37PM
Rate Power 7.5kW 11kW 15kW 22kW 37kW
F.A.D 1.0m3/min 1.6m3/min 2.3m3/min 3.5m3/min 6.2m3/min
Pressure ≤0.8MPa
(Please contact if there is any other pressure requirement,Under different pressure, the exhaust volume can be adjusted)
Drive Type PM Motor/Direct-driven
Voltage/Frequency AC380V-50Hz
Starting Mode Variable Frequency
Connection G1/2” G3/4” G3/4” G1” Rp1-1/4”
Size(LxWxH) 850X600X840mm 1050X750X1040mm 1050X750X1040mm 1160X800X1150mm 1250X1030X1270mm
Weight 125kg 239.5kg 239.5kg 301kg 460kg


Comparison between permanent magnet motor and ordinary asynchronous motor

Compared with electrically excited motors, permanent magnet motors have the following advantages:
High efficiency

Eliminate excitation system loss, improve efficiency 5-12%, high power factor, large torque inertia ratio, stator current and stator resistance loss reduction, and rotor parameters can be measured, good control performance, motor direct drive, no speed slip, no bearing and connection transmission, efficiency increased by more than 3%, light load than the same specification asynchronous motor efficiency increased by 15-35% or so. Always efficient regardless of light load or heavy load. At present, the energy efficiency of permanent magnet motors used by Hylein has reached the national level 1 energy efficiency standards.
Low noise
Reasonable magnetic field design, magnetic density distribution, wider operating frequency range, lower operating noise. Truly constant air pressure: open loop vector control, response time < 50ms, can adjust gas production in an instant over a wide range.
Compact structure, small size, light weight, high precision and fast response
The exciting winding and the exciting power supply (magnetic pole core) are eliminated, and the structure is simple, the operation is reliable and the maintenance is convenient.
High starting torque
The starting torque and overload capacity of permanent magnet synchronous motor are 1 power level higher than that of three-phase asynchronous motor, and the ratio of the maximum starting torque to the rated torque can reach more than 3 times, while the general asynchronous motor is only 1.6 times.

Single Stage Compression



Oil cooled machine
Core Ndfeb magnetic steel, not only high temperature 180ºC, and energy efficiency level is higher than IE5. The heat loss is small and the efficiency is high under the same power.

Reliable intake valve system
Unique structural design, reliable intake valve system, do not have to worry about emergency shutdown and sudden power outage oil injection.
The oil and gas pipe of the whole machine are made of stainless steel material or imported hose, which is durable and not aging. It is sealed with thread and flat O-ring, easy to disassemble without leakage.


Rear exhaust design to suck instead of blow
Fans dissipate heat faster and make less noise. The traditional fan blows against the cooler, which has large resistance and loud noise. The back row is cooled, and the cooler is placed vertically to avoid the dust falling on the cooler from the top down, which will lead to slow blockage for a long time. This design avoids.

New oil-cooled motor
Mold forming, no welding points, no risk; Rotary oil passage circulation, small pressure difference; It’s a circular surface; Circular surface type oil passage, full oil flow, uniform cooling oil passage in the outside, easy to repair and maintenance.


Quality Upgrade Three Lightspots






Company Profile

HangZhou Hylein Energy & Environmental Technology Co., Ltd. is located in HangZhou, Pearl River Delta, known as China’s compressor production base, is a professional engaged in all kinds of screw air compressor, nitrogen machine, oxygen generator, vacuum pump, magnetic suspension compressor R & D, production and sales of manufacturing enterprises, with standard production assembly line, the introduction of Europe and North America mature and experienced technology, Focus on providing a full range of services for various industries.
We strictly follow the IS09001 quality system standards and related industry standards, and throughout the product design, procurement, manufacturing, inspection, sales and service of the entire process, we always adhere to the global procurement strategy to ensure the superior performance of each air compressor, we pay attention to the development of new products, the latest energy-saving products are providing quality services for the global industrial energy-saving cause.
In the ZheJiang -ZheJiang Railway oxygen supply system air compressor project, we overcome high altitude, ultra-low temperature, ultra-high temperature, huge dust, frequent switching power supply and other problems.

After-sales Service

Equipment support High efficiency and energy saving equipment since the start of normal commissioning, to ensure the normal operation of the equipment.

Service scheme Monthly, quarterly regular arrangement of personnel to the user phone or on-site equipment operation inspection, testing work, timely understanding of unit operation dynamics, effective answer to user equipment operation questions, and do the corresponding need to improve maintenance, maintenance, to ensure the long-term effective work of the equipment, while providing service reports every time.

Technical service As long as the user needs equipment and technical help and consultation, the company will accurately reply within 2 hours, and provide the relevant technical information.

Service team We have a CHINAMFG theoretical knowledge, practical ability of strong service team and high-quality management team.

Corresponding time Our company will respond within 2 hours after receiving the notification of the failure of the user’s equipment, provide the fastest solution, and arrange technicians to arrive at the scene as soon as necessary.

Warranty commitment High efficiency and energy saving equipment since the start of normal commissioning, the whole machine warranty for 1 year.



Q1: What’s your delivery time?

O: It takes about 15 days, if there is any urgent order, please contact us.


Q2: How long is your air compressor warranty?

O: One year for the whole machine when the compressor leave our factory.


Q3: How about your after-sales service?

O:1. Provide customers with installation and commissioning online instructions.

    2. Well-trained engineers available to overseas service

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After-sales Service: 7*24
Warranty: 1 Year
Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Installation Type: Stationary Type


air compressor

What role do air dryers play in compressed air systems?

Air dryers play a crucial role in compressed air systems by removing moisture and contaminants from the compressed air. Compressed air, when generated, contains water vapor from the ambient air, which can condense and cause issues in the system and end-use applications. Here’s an overview of the role air dryers play in compressed air systems:

1. Moisture Removal:

Air dryers are primarily responsible for removing moisture from the compressed air. Moisture in compressed air can lead to problems such as corrosion in the system, damage to pneumatic tools and equipment, and compromised product quality in manufacturing processes. Air dryers utilize various techniques, such as refrigeration, adsorption, or membrane separation, to reduce the dew point of the compressed air and eliminate moisture.

2. Contaminant Removal:

In addition to moisture, compressed air can also contain contaminants like oil, dirt, and particles. Air dryers help in removing these contaminants to ensure clean and high-quality compressed air. Depending on the type of air dryer, additional filtration mechanisms may be incorporated to enhance the removal of oil, particulates, and other impurities from the compressed air stream.

3. Protection of Equipment and Processes:

By removing moisture and contaminants, air dryers help protect the downstream equipment and processes that rely on compressed air. Moisture and contaminants can negatively impact the performance, reliability, and lifespan of pneumatic tools, machinery, and instrumentation. Air dryers ensure that the compressed air supplied to these components is clean, dry, and free from harmful substances, minimizing the risk of damage and operational issues.

4. Improved Productivity and Efficiency:

Utilizing air dryers in compressed air systems can lead to improved productivity and efficiency. Dry and clean compressed air reduces the likelihood of equipment failures, downtime, and maintenance requirements. It also prevents issues such as clogging of air lines, malfunctioning of pneumatic components, and inconsistent performance of processes. By maintaining the quality of compressed air, air dryers contribute to uninterrupted operations, optimized productivity, and cost savings.

5. Compliance with Standards and Specifications:

Many industries and applications have specific standards and specifications for the quality of compressed air. Air dryers play a vital role in meeting these requirements by ensuring that the compressed air meets the desired quality standards. This is particularly important in industries such as food and beverage, pharmaceuticals, electronics, and automotive, where clean and dry compressed air is essential for product integrity, safety, and regulatory compliance.

By incorporating air dryers into compressed air systems, users can effectively control moisture and contaminants, protect equipment and processes, enhance productivity, and meet the necessary quality standards for their specific applications.

air compressor

How do you troubleshoot common air compressor problems?

Troubleshooting common air compressor problems can help identify and resolve issues that may affect the performance and functionality of the compressor. Here are some steps to troubleshoot common air compressor problems:

1. No Power:

  • Check the power source and ensure the compressor is properly plugged in.
  • Inspect the circuit breaker or fuse box to ensure it hasn’t tripped or blown.
  • Verify that the compressor’s power switch or control panel is turned on.

2. Low Air Pressure:

  • Check the air pressure gauge on the compressor. If the pressure is below the desired level, the compressor might not be building up enough pressure.
  • Inspect for air leaks in the system. Leaks can cause a drop in pressure. Listen for hissing sounds or use a soapy water solution to identify the location of leaks.
  • Ensure the compressor’s intake filter is clean and not clogged, as this can restrict airflow and reduce pressure.

3. Excessive Noise or Vibration:

  • Inspect the compressor’s mounting and foundation to ensure it is secure and stable. Loose mounts can cause excessive noise and vibration.
  • Check for loose or damaged components, such as belts, pulleys, or motor mounts. Tighten or replace as necessary.
  • Verify that the compressor’s cooling system, such as the fan or fins, is clean and free from obstructions. Overheating can lead to increased noise and vibration.

4. Air Leaks:

  • Inspect all connections, valves, fittings, and hoses for leaks. Tighten or replace any loose or damaged components.
  • Apply a soapy water solution to suspected areas and look for bubbles. Bubbles indicate air leaks.
  • Consider using thread sealant or Teflon tape on threaded connections to ensure a proper seal.

5. Excessive Moisture in Compressed Air:

  • Check the compressor’s drain valve and ensure it is functioning properly. Open the valve to release any accumulated moisture.
  • Inspect and clean the compressor’s moisture separator or air dryer, if equipped.
  • Consider installing additional filtration or drying equipment to remove moisture from the compressed air system.

6. Motor Overheating:

  • Ensure the compressor’s cooling system is clean and unobstructed.
  • Check the motor’s air intake vents and clean any dust or debris that may be blocking airflow.
  • Verify that the compressor is not being operated in an excessively hot environment.
  • Check the motor’s lubrication levels and ensure they are within the manufacturer’s recommended range.
  • Consider using a thermal overload protector to prevent the motor from overheating.

If troubleshooting these common problems does not resolve the issue, it may be necessary to consult the manufacturer’s manual or seek assistance from a qualified technician. Regular maintenance, such as cleaning, lubrication, and inspection, can also help prevent common problems and ensure the optimal performance of the air compressor.

air compressor

Can you explain the basics of air compressor terminology?

Understanding the basic terminology related to air compressors can help in better comprehension of their operation and discussions related to them. Here are some essential terms related to air compressors:

1. CFM (Cubic Feet per Minute): CFM is a unit of measurement that denotes the volumetric flow rate of compressed air. It indicates the amount of air a compressor can deliver within a minute and is a crucial factor in determining the compressor’s capacity.

2. PSI (Pounds per Square Inch): PSI is a unit of measurement used to quantify pressure. It represents the force exerted by the compressed air on a specific area. PSI is a vital specification for understanding the pressure capabilities of an air compressor and determining its suitability for various applications.

3. Duty Cycle: Duty cycle refers to the percentage of time an air compressor can operate in a given time period. It indicates the compressor’s ability to handle continuous operation without overheating or experiencing performance issues. For instance, a compressor with a 50% duty cycle can run for half the time in a given hour or cycle.

4. Horsepower (HP): Horsepower is a unit used to measure the power output of a compressor motor. It indicates the motor’s capacity to drive the compressor pump and is often used as a reference for comparing different compressor models.

5. Receiver Tank: The receiver tank, also known as an air tank, is a storage vessel that holds the compressed air delivered by the compressor. It helps in stabilizing pressure fluctuations, allowing for a more consistent supply of compressed air during peak demand periods.

6. Single-Stage vs. Two-Stage: These terms refer to the number of compression stages in a reciprocating air compressor. In a single-stage compressor, air is compressed in a single stroke of the piston, while in a two-stage compressor, it undergoes initial compression in one stage and further compression in a second stage, resulting in higher pressures.

7. Oil-Free vs. Oil-Lubricated: These terms describe the lubrication method used in air compressors. Oil-free compressors have internal components that do not require oil lubrication, making them suitable for applications where oil contamination is a concern. Oil-lubricated compressors use oil for lubrication, enhancing durability and performance but requiring regular oil changes and maintenance.

8. Pressure Switch: A pressure switch is an electrical component that automatically starts and stops the compressor motor based on the pre-set pressure levels. It helps maintain the desired pressure range in the receiver tank and protects the compressor from over-pressurization.

9. Regulator: A regulator is a device used to control and adjust the output pressure of the compressed air. It allows users to set the desired pressure level for specific applications and ensures a consistent and safe supply of compressed air.

These are some of the fundamental terms associated with air compressors. Familiarizing yourself with these terms will aid in understanding and effectively communicating about air compressors and their functionality.

China Good quality Permanent Magnet Variable Speed Screw Air Compressor Epmseries 7.5kw 11kw 15kw 22kw 37kw   air compressor lowesChina Good quality Permanent Magnet Variable Speed Screw Air Compressor Epmseries 7.5kw 11kw 15kw 22kw 37kw   air compressor lowes
editor by CX 2024-05-13