Product Description
Product Description
Medical Compressor Food Compressor Chemical Compressor Oil-Free Scroll Air Compressor
Model:DCO30-A8
Capacity:3.4m3/min
Working pressure:8 bar
Rated power: 3.7kw 5hp
Drive mode: direct driven mode
Control type: pressure sensor control,7″ touch screen PLC
Working principle
The compression process of the oil-free scroll is realized by the rotating motion of the stationary scroll and the movable scroll.
The air enters from the outside of the main engine, and after the air is sucked in, the moving scroll closes the air inlet. With the rotation of the movable scroll, the air is continuously compressed, and the compressed oil-free air is sent from the center of the stationary scroll. This process is repeated continuously to ensure that the discharged compressed air is continuous and without fluctuation.
Features and advantages
100% oil free
It can be used in any industry, especially suitable for users who require high oil content in compressed air.
Run quietly
Scroll air compressors operate with extremely low noise and a healthier working environment.
Easy to install
It occupies a small area and can be installed near the gas point, thereby reducing the installation of compressed air pipe network and effectively reducing the installation cost of the pipe network.
Simple maintenance
There is no need to replace or add lubricating oil, only a small amount of consumables need to be replaced regularly, and the maintenance cost is low.
Zero emission
Only condensate is discharged, no harmful substances are discharged, in line with sustainable development goals.
Technical Parameters
| Model | Capacity(m³/min ) | Power(kW) | Host architecture | Exhaust pressure(Mpa) | Noise(dB) | Outlet diameter | Dimensions (mm) L*W*H | Weight(kg) |
| DHH2OS | 0.24 | 2.2 | 2.2*1 | 0.8 | 58±2 | 1/2 | 640*660*890 | 200 |
| DHH3OS | 0.41 | 3.7 | 3.7*1 | 0.8 | 58±2 | 1/2 | 640*660*890 | 220 |
| DHH3OS | 0.36 | 3.7 | 3.7*1 | 1 | 58±2 | 1/2 | 640*660*890 | 220 |
| DHH5OS | 0.60 | 5.5 | 5.5*1 | 0.8 | 58±2 | 1/2 | 640*660*890 | 240 |
| DHH7OS | 0.82 | 7.5 | 3.7*2 | 0.8 | 58±2 | 3/4 | 1000*690*990 | 300 |
| DHH7OS | 0.72 | 7.5 | 3.7*2 | 1 | 58±2 | 3/4 | 1000*690*990 | 300 |
| DHH11OS | 1.25 | 11 | 5.5*2 | 0.8 | 58±2 | 3/4 | 1000*690*990 | 340 |
| DHH11OS | 1.25 | 11 | 3.7*3 | 0.8 | 58±2 | 3/4 | 1150*690*1700 | 430 |
| DHH11OS | 1.08 | 11 | 3.7*3 | 1 | 58±2 | 3/4 | 1150*690*1700 | 430 |
| DHH15OS | 1.66 | 15 | 3.7*4 | 0.8 | 62±2 | 1 | 1490*1150*1290 | 620 |
| DHH15OS | 1.44 | 15 | 3.7*4 | 1 | 62±2 | 1 | 1490*1150*1290 | 620 |
| DHH16OS | 1.80 | 16.5 | 5.5*3 | 0.8 | 62±2 | 1 | 1150*690*1700 | 490 |
| DHH18OS | 2.14 | 18.5 | 3.7*5 | 0.8 | 65±2 | 1 | 1490*1150*1700 | 840 |
| DHH18OS | 1.77 | 18.5 | 3.7*5 | 1 | 65±2 | 1 | 1490*1150*1700 | 840 |
| DHH22OS | 2.55 | 22 | 5.5*4 | 0.8 | 65±2 | 1 | 1490*1150*1290 | 700 |
| DHH22OS | 2.55 | 22 | 3.7*6 | 0.8 | 65±2 | 1 | 1490*1150*1700 | 910 |
| DHH22OS | 2.11 | 22 | 3.7*6 | 1 | 68±2 | 1 | 1490*1150*1700 | 910 |
| DHH30OS | 3.40 | 30 | 3.7*8 | 0.8 | 68±2 | 5/4 | 1490*1150*2140 | 1140 |
| DHH30OS | 2.81 | 30 | 3.7*8 | 1 | 68±2 | 5/4 | 1490*1150*2140 | 1140 |
| DHH33OS | 3.60 | 33 | 5.5*6 | 0.8 | 68±2 | 5/4 | 1490*1150*1700 | 1571 |
Clean oil free compressed air
Adopt 74 degree conicity dry seamless, more reliable seamless, eliminate air leakage. Not just compression process is oil free, but also on the afterward transportation adopt stainless steel pipe, stainless steel check valve, stainless steel air receiver(for air receiver mounted), ensure the quality of compressed air.
High efficiency scroll air end
Adopt the advanced oil free scroll airend, reliable bearing and grease, make sure the reliability and long life-span of airend, high precise machine for motivated scroll, fixed scroll and housing, ensure high efficiency of airend. Reliable seamless material, ensure compression chamber and lubricated transmit 100% be separate, ensure compressed air is oil free.
High Reliability
Cooling fan adopt integrated centrifugal impeller, low noise, high cooling air pressure, high cooling air, ensure the cooling air is enough, ventilation fan adopt silence axial fan, ensure the heat inside of cabinet could be eliminated in time. Heat exchange has been increased 20%-30%, anticorrosive treatment inner structure, after strict testing, ensure the exhausting air less than environment temp.+10-15ºC, reduce the burden of downstream equipment. Adopt direct driven, not belt driven, improve transmission efficiency & reliability, reduce the maintenance cost of changing belt.
Certifications
Certificate
Project case
Project Case
Customer feedback
Customer Feedback
Company Profile
About Us
Dehaha Compressor was founded in 1996 with over 150 skilled employees and more than 25 R&D engineersteams ‘ .We focus on the research & develop,manufacture and energy-saving solutions of screw air compressor to create value for customers and society.In 2018 our total sales volume approached 15 million US dollars.By over 23 years enhanced experiences of designing,producing and marketing,today our valued customers are over 130 countries.
Germany Standard and 13 years exporting experience help us won more than 50 loyal overseas agents.
Dehaha’s primary businesses focus in following key areas:
Oil-injected rotary screw compressors
Portable screw air compressors
Oil free air compressors
High pressure air compressors
Air treatment equipment
At Dehaha,we earn our customers’ trust and satisfaction by manufacturing the superior quality compressed air
products for all industries.All of our products are designed for reliable performance,easy maintenance,and maximum energy efficiency.We have sales representatives who can speak English,Spanish,French,and Russian which makes it easier for our clients from all over the world to interact and negotiate with us.
Dehaha continuously innovates product development and management to meet customers’ demand.The powerful enterprise culture and continuous innovation make CHINAMFG improved rapidly to reach the business principle”Energy Saving First, Mutual Value Shared”. CHINAMFG mission is to be a world-renowned high-end brand,with sustainable development,constantly improving its own value and sharing it with our customers and staff.Committed to offer our customers a silent and energy-saving manufactured products.
Our service
Our Service
1. 24/7 after sales service support in different languages.
2.Follow up the feedback of products in 2 months interval by email or call.
3. Guidance of installation and commissioning on site can be provided by factory-trained technicians or local Authorized Service Center.
4. Technical training for customers in DEHAHA air compressor factory or working site.
5.Plenty of original spare parts with proven quality are all available from our central stocks in ZheJiang and all distributors’depots.
6.All kinds of technical documents in different languages.
FAQ
FAQ
Q1. Are you trading company or manufacture ?
A: We are professional manufacture of screw air compressor of ZheJiang , China, more than 24 years.
Q2. How long is the delivery time ?
A: For standard voltage ,15 working days. Non-standard ,please contact our sales.
Q3. What’s payment term ?
A: T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.
Q4. How about your after-sales service ?
A: 1.Provide customers with installation and commissioning online instructions.
2. Well-trained engineers available to overseas service.
3.CHINAMFG agents and after service avaiable.arrange our engineers to help you training and installation.
Q5. How about your warranty?
A: One year for the whole machine and 2 years for screw air end, except consumable spare parts.
Q6. Do you have any certificate ?
A: Yes, per different customer’s market need ,we can offer CE ,ISO etc certificate.
Q7. What about the maintenance ?
A: First maintenance need to be done after 500Hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.
Q8. How do you control quality ?
A: 1.The raw materials are strictly inspected
2. Some key parts are imported from overseas
3.Each compressor must pass at least 5 hours of continuous testing before leaving the factory.
Q9. Do you offer OEM service ?
A: Yes.Both OEM & ODM service can be accepted.
Q10.How long could your air compressor be used?
A: Generally, more than 10 years.
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| After-sales Service: | Online Support |
|---|---|
| Warranty: | 24months |
| Lubrication Style: | Lubricated |
| Cooling System: | Air Cooling |
| Power Source: | AC Power |
| Cylinder Position: | Vertical |
| Customization: |
Available
|
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|---|
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How Do Oil-Free Scroll Compressors Compare to Oil-Lubricated Ones?
When comparing oil-free scroll compressors to oil-lubricated compressors, several factors come into play. Here’s a detailed comparison:
Oil Contamination:
One of the primary differences between the two types of compressors is the presence or absence of oil in the compression process. Oil-lubricated compressors require lubricating oil for the operation of internal components, which introduces the risk of oil carryover and contamination in the compressed air. On the other hand, oil-free scroll compressors operate without the use of lubricating oil, ensuring that the compressed air remains free from oil particles and contamination. This makes oil-free scroll compressors more suitable for applications that demand clean and oil-free compressed air, such as in medical, pharmaceutical, and electronics industries.
Maintenance Requirements:
Oil-lubricated compressors require regular maintenance to ensure proper lubrication and oil quality. This includes oil changes, oil filter replacements, and monitoring oil levels. In contrast, oil-free scroll compressors have reduced maintenance requirements since there is no need for oil changes or oil-related maintenance tasks. This can result in lower maintenance costs and less downtime for oil-free scroll compressors.
Environmental Impact:
Oil-lubricated compressors have the potential to release oil into the environment through leaks or during maintenance activities. This can have negative environmental implications and may require additional measures for proper oil disposal. Oil-free scroll compressors, on the other hand, eliminate the risk of oil contamination and minimize the environmental impact associated with oil handling and disposal.
Efficiency and Performance:
Oil-lubricated compressors and oil-free scroll compressors can both deliver compressed air efficiently. However, oil-free scroll compressors are known for their high energy efficiency due to their scroll mechanism design, which minimizes internal leakage and reduces energy losses. Additionally, the absence of oil in oil-free scroll compressors eliminates the need for oil separators, oil filters, and associated pressure drops, further contributing to improved efficiency.
Noise Levels:
Oil-lubricated compressors can generate more noise due to the reciprocating motion of components and the presence of oil in the compression process. Oil-free scroll compressors, on the other hand, operate with smooth and quiet scroll mechanisms, resulting in lower noise levels. This can be advantageous in applications where noise reduction is desired, such as in medical environments or noise-sensitive manufacturing processes.
Application Suitability:
The choice between oil-free scroll compressors and oil-lubricated compressors depends on the specific requirements of the application. Oil-lubricated compressors are commonly used in industrial applications where oil contamination is not a concern, and the focus is on high capacity and efficiency. On the other hand, oil-free scroll compressors are favored in industries that require clean, oil-free compressed air, such as medical, pharmaceutical, laboratory, and electronics manufacturing.
In summary, oil-free scroll compressors offer advantages such as oil-free compressed air, reduced maintenance requirements, lower environmental impact, high energy efficiency, and quieter operation. However, the choice between oil-free scroll compressors and oil-lubricated compressors ultimately depends on the specific needs and considerations of the application at hand.
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How Do You Troubleshoot Common Issues with Oil-Free Scroll Compressor Systems?
When troubleshooting common issues with oil-free scroll compressor systems, it’s important to follow a systematic approach to identify and resolve the problem. Here’s a detailed explanation:
Step 1: Gather Information:
Start by gathering relevant information about the compressor system and the specific issue you are experiencing. This may include the compressor model and specifications, maintenance records, any error codes or warning messages displayed, and a description of the problem and its symptoms.
Step 2: Visual Inspection:
Perform a visual inspection of the compressor system. Look for any obvious signs of damage, leaks, loose connections, or unusual noise or vibrations. Check the air intake and exhaust vents for blockages or obstructions. Inspect the control panel and electrical components for any visible issues.
Step 3: Check Power and Controls:
Ensure that the compressor system is receiving proper power supply and that all electrical connections are secure. Check the control settings and adjust them as needed. Verify that any safety switches or interlocks are properly engaged. Test the system with different control settings to see if the issue persists or changes.
Step 4: Review Maintenance and Service Records:
Review the maintenance and service records of the compressor system. Check if any scheduled maintenance tasks, such as filter replacements or lubricant changes, are overdue. Ensure that the system has been properly serviced according to the manufacturer’s recommendations. Improper maintenance or missed service tasks can contribute to performance issues.
Step 5: Monitor Operating Parameters:
Monitor the operating parameters of the compressor system during normal operation. This may include measuring and recording variables such as discharge pressure, suction pressure, motor current, and temperature. Compare these parameters to the manufacturer’s specifications or known good values to identify any deviations that may indicate a problem.
Step 6: Analyze Error Codes or Alarms:
If the compressor system displays error codes or alarms, consult the system’s documentation or user manual to understand their meaning. Error codes can provide valuable information about the specific nature of the issue. Troubleshoot and address the underlying cause of the error code or alarm according to the manufacturer’s instructions.
Step 7: Inspect and Clean Filters:
Check and clean the air intake filters, oil filters, and any other filtration components in the system. Clogged or dirty filters can restrict airflow and cause performance issues. Follow the manufacturer’s guidelines for filter cleaning or replacement. Ensure that the filters are properly installed after cleaning or replacement.
Step 8: Verify Lubrication System:
If applicable, verify the lubrication system of the compressor. Check the oil level and ensure that it is within the recommended range. Inspect the oil cooler, oil lines, and oil filter for any leaks, blockages, or damage. Ensure that the lubricant used is of the correct type and viscosity specified by the manufacturer.
Step 9: Check Cooling System:
Inspect the cooling system of the compressor, including the air or water cooling components. Make sure that the cooling system is functioning properly and that there are no obstructions or restrictions in the airflow or water flow. Clean any accumulated dirt or debris from the cooling fins or heat exchangers.
Step 10: Consult Manufacturer’s Documentation:
If the issue persists or if you are unable to identify the problem, consult the manufacturer’s documentation, such as the user manual or troubleshooting guide. These resources often provide specific troubleshooting steps and solutions for common issues with the oil-free scroll compressor system. Follow the manufacturer’s recommendations and contact their technical support if necessary.
It’s important to note that troubleshooting and maintenance of oil-free scroll compressor systems may require specialized knowledge and expertise. If you are not familiar with the specific equipment or troubleshooting procedures, it is recommended to consult a qualified technician or contact the manufacturer’s technical support for assistance.
In summary, troubleshooting common issues with oil-free scroll compressor systems involves gathering information, performing visual inspections, checking power and controls, reviewing maintenance records, monitoring operating parameters, analyzing error codes, inspecting and cleaning filters, verifying the lubrication system, checking the cooling system, and consulting the manufacturer’s documentation. Following a systematic approach helps identify and resolve problems effectively.
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What Is an Oil-Free Scroll Air Compressor?
An oil-free scroll air compressor is a type of compressor that utilizes a scroll mechanism to compress air without the need for lubricating oil. Here’s a detailed explanation:
Working Principle:
An oil-free scroll air compressor consists of two spiral-shaped scrolls, typically referred to as the stationary scroll and the orbiting scroll. These scrolls are positioned eccentrically to each other, creating crescent-shaped compression chambers.
As the orbiting scroll moves in a circular motion within the stationary scroll, the crescent-shaped compression chambers decrease in volume. This reduction in volume compresses the air trapped within the chambers, resulting in the pressurization of the air.
Oil-Free Operation:
- No Lubricating Oil: Unlike other compressor types, such as reciprocating or rotary screw compressors, oil-free scroll compressors do not rely on lubricating oil for sealing or cooling purposes. The scrolls are designed with precision tolerances and mating surfaces that allow them to operate without any oil lubrication.
- Dry Compression: The absence of lubricating oil in the compression chambers ensures that the compressed air remains free from oil contaminants. This makes oil-free scroll compressors suitable for applications that require clean, oil-free air, such as in medical, pharmaceutical, laboratory, and food processing industries.
Advantages:
- High Efficiency: Oil-free scroll compressors are known for their high efficiency due to the continuous compression process. The scroll design minimizes internal leakage and improves volumetric efficiency, resulting in reduced energy consumption and operating costs.
- Compact and Quiet: Oil-free scroll compressors are compact in size and have fewer moving parts compared to other compressor types. This compact design not only saves space but also contributes to quieter operation with lower noise levels.
- Low Maintenance: Since oil-free scroll compressors do not require oil changes or regular lubrication, their maintenance requirements are significantly reduced. This can lead to cost savings and less downtime for maintenance activities.
- Reliability: The scroll mechanism in oil-free scroll compressors operates smoothly and without metal-to-metal contact, resulting in reduced wear and tear. This enhances the compressor’s reliability and longevity, providing consistent performance over an extended period.
Applications:
Oil-free scroll compressors are commonly used in various applications where clean, oil-free compressed air is essential. Some typical applications include:
- Medical and dental air supply
- Pharmaceutical manufacturing
- Laboratory air systems
- Food and beverage processing
- Electronics manufacturing
- Printing and packaging industries
Overall, an oil-free scroll air compressor offers efficient, oil-free compression, compactness, low maintenance, and reliability, making it a suitable choice for applications that demand clean air and require a reliable source of compressed air.
editor by CX 2023-12-20