Product Description
DM Series Permanent Magnet Variable Frequency Screw Compressor
Permanent magnet Direct Screw Air End
It is a unique new design, which combines the permanent magnet motor and the speed control frequency converter. It couples with the high quality air end, which shows the advanced CHINAMFG technology.
It can provide the unique energy-saving effect and super reliability. There is no motor bearing. The screwing compressor is driven by the permanent magnet motor. There is no consider about the attrition of the gear,pulley,belt, coupling,shaft seal and the moving parts, which leads to the leak or change parts. Meanwhile, it not need to consider the calibritionfor the gear coaxial seal. The high-effect converter technique will reduce the operating costs prodigiously, which can provide you a real excellent technology.
Technical Parameter
| Model | Volume flow (m3/min) | Power (kW) |
Noise (db) |
Outlet diameter |
Dimension(mm) | Weight (kg) |
||||||
| 6bar | 7bar | 8bar | 10bar | 13bar | Lenght | Width | Height | |||||
| DM-10A | / | 1.3 | 1.2 | 1 | / | 7.5 | 63 | G3/4 | 895 | 590 | 970 | 190 |
| DM-20A | 2.55 | 2.4 | 2.3 | 2.0 | / | 15 | 65 | G3/4 | 1062 | 690 | 1000 | 236 |
| DM-30A | 4.5 | 4.15 | 3.7 | 3.2 | / | 22 | 68 | G1 | 1330 | 830 | 1265 | 410 |
| DM-40A | 6 | 5.7 | 5.2 | / | / | 30 | 68 | G1 | 1330 | 830 | 1265 | 520 |
| DM-50A | 7.35 | 6.9 | 6.5 | 5.6 | 4.9 | 37 | 69 | G1 1/2 | 1500 | 940 | 1415 | 655 |
| DM-60A | 8.7 | 8.1 | 7.5 | 6.75 | 5.9 | 45 | 70 | G1 1/2 | 1500 | 940 | 1415 | 730 |
| DM-75A | 11.2 | 10.3 | 9.5 | / | 7.8 | 55 | 70 | G2 | 1600 | 1060 | 1470 | 950 |
| DM-100A | 13.6 | 13 | 12.8 | 11 | 9.5 | 75 | 72 | G2 | 2000 | 1120 | 1590 | 1070 |
| DM-125A | 17.2 | 16.7 | 15.5 | 14.0 | 12.5 | 90 | 72 | G2 | 2000 | 1120 | 1590 | 1221 |
| DM-150A | 21.5 | 20.8 | 19.6 | 17.8 | 15.5 | 110 | 72 | DN65 | 2400 | 1630 | 1980 | 1950 |
| DM-175A | 24.6 | 24.1 | 23.2 | 19.5 | 17 | 132 | 72 | DN65 | 2400 | 1630 | 1980 | 2150 |
| DM-220A | 30.2 | 28.8 | 27.8 | 23.0 | 20 | 160 | 72 | DN80 | 2800 | 1828 | 2150 | 3620 |
Notes:
1.A represents air-cooling type;
2.Working Environment temperature: 2ºC~45ºC;
3.Startup Mode: frenquency start
4.Work Power: 380V / 50HZ/3P 4 wire type.
5.F.A.D volume flow test is according to ASMC PTC9 or ISO1217 standard (GB/T3853)
Detailed description
1.Rotor
Rotors are asymmetric in profile, backed up by ball bearings and roller bearings. Operates at a low speed, thereby low in abrasion and maintenance expenses, air end is long service life.
2.Control panel
Intelligent microcomputer-based control technology can monitor and control in all aspects the complete machine following your instructions, remote control realizes unattended operation.
3.Oil filter
Rotary filters are applied to completely remove the impurities in the lubricating oil, easy to replace and free of oil impregnate.
4.Air filter
Original imported filter material,high efficiency 3 levels air separator, keep internal cleanliness of the system effectively.
5.Cooler
The cooler is located separately from the internal isolation of the chassis,so that the cooling fans would suck air with normal temperature from outside.Compared to cooling by using the air of 45~65°Cinside the chassis,the cooling fans could save over 30% energy when the temperature of the air outlet decreases 3~8°C.
6.Excellent quality of motors
Professional customized high efficiency permanent magnet motor,Compared to normal motors, Permanent magnet motor more excellent energy saving.protection grade:IP65
7.The air end of compressor is of high efficiency and long life
Excellent CHINAMFG bearings are adopted for compressor air end to better improve their use efficiency,reduce abrasion.and to realize long term operation with no faults,low noise and long life.
Company Profile
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.
Application Industry
Air compressors are widely used in industries to meet customers’ various gas needs,such as Industrial equipment,pipelines, printing service, electric power, metallurgy, oil&gas, power plants, shipbuilding, plastics, painting, textile, blow molding, steel industry, chemical industry, shipyard, machanical etc.
Shipping and shipping
• Packing Details: Plywood crate pallet plus foam board and bubble film, Full closed wooden case. 1pcs/each package (for stationary screw air compressor)
• Shipping method: by sea, by LCL/FCL or as requested
• Delivery method: FOB, CFR, CIF and EXW etc.
• Delivery time: in 7-15 days after receiving deposit (customized machines not included)
Our service
1. 24h/7 after sales support in different languages
2. Follow up the in products in 2 months interval by email or call
3.Guidance of installation and commissioning on site can be provided by factory-trained technicians
4. Technical training for customers in CHINAMFG air compressor factory or working site.
5. plenty of drginal spare parts with proven quality are all available from our stocks in Jianhgsu .
6. All kinds of technical documents in different languges.
After-sale Service
• Any questions or requests before, during or after sales, we would like to help you any time and will find you the best solution in 24 hours.
• Warranty: One year for the whole machine Genuine spare parts will be provided with the best price.
• An overboard engineer service is available.
Overseas Engineer Service
• We are available to send our engineer for aboard service. Only need you to arrange accommodation, transportation, and translator. The extra cost for each will be discussed based on the local price level.
Special Customized Service
(1) Full OEM
• Quantity: at least 5 pcs
• In this plan, we will do all the changes (Color, nameplate, and logo) as your need, and will not charge extra fee.
(2) Half OEM
• Quantity: no limit
• Under this program, we can make the necessary alteration (nameplate and logo) but we will charge some extra fee for the nameplate, as the nameplate factory has the MOQ.
(3) Logo OEM
• Quantity: no limit
• Only the logo will be changed to yours, and no extra fee will be charged.
FAQ
1.Why customer choose us?
DHH CHINAMFG ZheJiang CO.,LTD.with 23 years old history,we are specialized in Rotary Screw Air Compressor.Germany Standard and 13 years exporting experience help us won more than 30 loyal foreign agents.We warmly welcome your small trial order for quality or market test.
2.Are you a manufacturer or trading company?
We are professional manufacturer with big modern factory in HangZhou,China,with professional design team.Both OEM & ODM service can be accepted.
3.Where is your factory located? How can I visit there?
Our factory is located in HangZhou City, ZheJiang Province, China. We can pick up you from ZheJiang , it’s about 1 hour from ZheJiang Xihu (West Lake) Dis. Airport to our factory. Warmly welcome to visit us!
4.What’s your delivery time?
380V 50HZ we can delivery the goods within 14 days. Other electricity or other color we will delivery within 22 days,if urgently order,pls contact our sales in advance.
5.How long is your air compressor warranty?
One year for the whole machine and 2 years for screw air end, except consumable spare parts and we can provide some spare parts of the machines.
6.How does your factory do regarding quality control?
Quality is everything. we always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001:2015 authentication and CE certificate.
7.How long could your air compressor be used?
Generally, more than 10 years.
8. 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.
9.How about your customer service?
24 hours on-line service available.48 hours problem solved promise.
10.How about your after-sales service?
(1) Provide customers with installation and commissioning online instructions.
(2) Well-trained engineers available to overseas service.
(3) CHINAMFG agents and after service available.
| Lubrication Style: | Lubricated |
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| Cooling System: | Air Cooling |
| Power Source: | AC Power |
| Customization: |
Available
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| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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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.
Can air compressors be used for inflating tires and sporting equipment?
Yes, air compressors can be used for inflating tires and sporting equipment, providing a convenient and efficient method for achieving the desired air pressure. Here’s how air compressors are used for these purposes:
1. Tire Inflation:
Air compressors are commonly used for inflating vehicle tires, including car tires, motorcycle tires, bicycle tires, and even larger truck or trailer tires. Air compressors provide a continuous source of pressurized air, allowing for quick and accurate inflation. They are often used in automotive repair shops, gas stations, and by individuals who regularly need to inflate tires.
2. Sporting Equipment Inflation:
Air compressors are also useful for inflating various types of sporting equipment. This includes inflatable balls such as soccer balls, basketballs, footballs, and volleyballs. Additionally, air compressors can be used to inflate inflatable water toys, air mattresses, inflatable kayaks, and other recreational items that require air for proper inflation.
3. Air Tools for Inflation:
Air compressors can power air tools specifically designed for inflation purposes. These tools, known as inflators or air blow guns, provide controlled airflow for inflating tires and sporting equipment. They often have built-in pressure gauges and nozzles designed to fit different types of valves, making them versatile and suitable for various inflation tasks.
4. Adjustable Pressure:
One advantage of using air compressors for inflation is the ability to adjust the pressure. Most air compressors allow users to set the desired pressure level using a pressure regulator or control knob. This feature ensures that tires and sporting equipment are inflated to the recommended pressure, promoting optimal performance and safety.
5. Efficiency and Speed:
Air compressors provide a faster and more efficient inflation method compared to manual pumps. The continuous supply of compressed air allows for quick inflation, reducing the time and effort required to inflate tires and sporting equipment manually.
6. Portable Air Compressors:
For inflating tires and sporting equipment on the go, portable air compressors are available. These compact and lightweight compressors can be easily carried in vehicles or taken to sports events and outdoor activities, ensuring convenient access to a reliable air supply.
It is important to note that when using air compressors for inflating tires, it is recommended to follow manufacturer guidelines and proper inflation techniques to ensure safety and avoid overinflation.
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What maintenance is required for air compressors?
Maintaining air compressors is essential to ensure their optimal performance, longevity, and safe operation. Regular maintenance helps prevent breakdowns, improves efficiency, and reduces the risk of accidents. Here are some key maintenance tasks for air compressors:
1. Regular Inspection: Perform visual inspections of the air compressor to identify any signs of wear, damage, or leaks. Inspect the compressor, hoses, fittings, and connections for any abnormalities. Pay attention to oil leaks, loose bolts, and worn-out components.
2. Oil Changes: If your air compressor has an oil lubrication system, regular oil changes are crucial. Follow the manufacturer’s recommendations for the frequency of oil changes and use the recommended oil type. Dirty or degraded oil can impact compressor performance and lead to premature wear.
3. Air Filter Cleaning or Replacement: Clean or replace the air filter regularly to ensure proper air intake and prevent contaminants from entering the compressor. Clogged or dirty filters can restrict airflow and reduce efficiency.
4. Drain Moisture: Air compressors produce moisture as a byproduct of the compression process. Accumulated moisture in the tank can lead to rust and corrosion. Drain the moisture regularly from the tank to prevent damage. Some compressors have automatic drains, while others require manual draining.
5. Belt Inspection and Adjustment: If your compressor has a belt-driven system, inspect the belts for signs of wear, cracks, or tension issues. Adjust or replace the belts as necessary to maintain proper tension and power transmission.
6. Tank Inspection: Inspect the compressor tank for any signs of corrosion, dents, or structural issues. A damaged tank can be hazardous and should be repaired or replaced promptly.
7. Valve Maintenance: Check the safety valves, pressure relief valves, and other valves regularly to ensure they are functioning correctly. Test the valves periodically to verify their proper operation.
8. Motor and Electrical Components: Inspect the motor and electrical components for any signs of damage or overheating. Check electrical connections for tightness and ensure proper grounding.
9. Keep the Area Clean: Maintain a clean and debris-free area around the compressor. Remove any dirt, dust, or obstructions that can hinder the compressor’s performance or cause overheating.
10. Follow Manufacturer’s Guidelines: Always refer to the manufacturer’s manual for specific maintenance instructions and recommended service intervals for your air compressor model. They provide valuable information on maintenance tasks, lubrication requirements, and safety precautions.
Regular maintenance is vital to keep your air compressor in optimal condition and extend its lifespan. It’s also important to note that maintenance requirements may vary depending on the type, size, and usage of the compressor. By following a comprehensive maintenance routine, you can ensure the reliable operation of your air compressor and maximize its efficiency and longevity.
editor by CX 2023-12-13