China supplier Portable Screw Air Compressor 7 Bar CHINAMFG Xas38kd CHINAMFG portable air compressor

Product Description

Portable Screw Air Compressor 7 Bar CHINAMFG Xas38kd Kubota

1. Lightweight
11 models. Almost all are below 750 kg including options with a built in generator and aftercooler.

2. Legendary toughness
HardHat canopy for longer lifetime and higher residual value.

3. Assured reliability
Anti-air lock system for guaranteed engine starting.

4. PACE – 1 compressor, multiple applications
A boost for your utilization rate. Thanks to PACE, you can adjust the pressure and use your compressor for multiple applications.

5. Stage V compliant
All models comply with Europe’s most stringent emission regulations.

6. On-board generator
Our towable compressors are also available with built-in generator. That’s 1 piece of equipment less that you need to bring to your construction site.

Find the most suitable XAS for your application:
With or without built-in generator
With or without PACE technology (adjustable pressure)
Wide range of options (quality air treatment, extreme weather kits, and more)

Technical Data of 8 Series  Portable Air Compressor

Performance Unit XAS38Kd XAS 48 Kd XAHS38Kd XAS 58Kd XAS 68 Kd
Working Pressure Bar (g) 7 7 12 7 7
Psi (g) 100 100 175 100 100
Free Air Delivery CFM 70 90 80 120 135
M3 /Min 2 3 2 3 4
Noise dB(A) 70 70 70 70 70
Engine
Engine Brand   Kubota Kubota Kubota Kubota Kubota
Engine Model   D 722 D 902 V 1505 V 1505 V 1505
Number of Cylinders   3 3 4 4 4
Power output kw 14,9 18,5 26,5 26,5 26,5
Fuel Tank capacity L 27 27 60 60 60
Full load RPM rpm 3400 3600 3000 3000 3000
Dimensions : Box unit
Length mm 1550 1550 1940 1940 1940
Width mm 1050 1050 1160 1160 1160
Height mm 880 880 1050 1050 1050
Weight Box kg 440 440 650 650 650

 

Technical Data
Performance XAS 88KD XAS 98KD XAS 48KDG XAS 68KDG XAS 98KDG
Free air delivery m²/min 5   5.3 2.5 3.5 5.3
Working pressure   bar 7 7 7 10.3 7
Emission valve No/size  3*3/4″  3*3/4″ 3*3/4″ 3*3/4″ 3*3/4″
electric power kVA     6(12.5) 6(12.5) 9
air compressor oil tank L 8 9 8 8 9
Max.ambient temperature at sea level C 50 50 50 50 50
Min.starting temperature C -10/-20   -10/-20 -10/-20 -10/-20 -10/-20
Noise level     dB(A) 101   101 101 101 101
Engine    
Brand      Kubota   Kubota Kubota Kubota Kubota
Model       V 1505 T   V1505 T V 1505(T) V1505 T V 1505 T
Cylinder no.   4 4 4 4 4
Power    kW 33 33 26.5(33) 33 33
Full load   rpm  3000  3000 3000 3000 3000
unload   rpm  1850  1850 1850 1850 1850
engine oil tank capacity L 5.5   5.5 5.5 5.5 5.5
cooler tank capacity L 8.5   8.5 8.5 8.5 8.5
fuel tank capacity L 60 60 60 60 60
Dimension    
Length   mm  2290  2290 2290 2290 2290
Width   mm  1350  1350 1350 1350 1350
Height   mm  1400  1400 1400 1400 1400
Weight    kg  <750  <750 <750 <750 <750

More CHINAMFG air compressor:

XAS XAS37, XAS47, XAS57, XAS67, XAS97,XAS137, XAS58kd, XAS68kd, XAS78kd, XAS88, XAS88kd, XAS57E, XAS77E, XAS486E, XAS186C,
XAH XAH107,
XAHS XAHS37, XAHS38kd, XAHS710E, XAHS650E, XAHS376E, XAHS930E, XAHS950, XAHS166C, XAHS710cd,
XATS XATS67, XATS68kd, XATS1200, XATS1050, XATS156C, XATS800cd,
XAMS XAMS850E, XAMS800E, XAMS466E, XAMS1150, XAMS850cd,
XAVS XAVS650E, XAVS550E, XAVS306E, XAVS336E, XAVS900, XAVS206C, XAVS236C, XAVS650cd,
XAXS XAXS600E, XAXS600C, XAXS600cd,
XRS XRS846,
XRHS XRHS1150E, XRHS1150, XRHS836, XRHS666C, XRHS666cd,
XRVS XRVS960E, XRVS1050, XRVS1275, XRVS1000, XRVS716,
XRXS XRXS1210,
XRYS XRYS1150,

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After-sales Service: Best
Warranty: 1 Year
Principle: Screw
Application: Intermediate Back Pressure Type, High Back Pressure Type
Performance: Low Noise, Variable Frequency, Explosion-Proof
Mute: Mute

air compressor

Are There Oil-Free Screw Compressors Available?

Yes, oil-free screw compressors are available in the market to cater to applications where oil contamination is a concern. Here’s a detailed explanation:

Oil-free screw compressors, as the name suggests, are designed to operate without the use of lubricating oil in the compression chamber. These compressors offer several advantages in industries where oil-free compressed air or gas is required, such as in food and beverage, pharmaceutical, electronics, and certain manufacturing processes.

The key features and considerations of oil-free screw compressors include:

  • 1. Specialized Design: Oil-free screw compressors are designed with specialized materials, coatings, and sealing systems to eliminate the need for lubricating oil in the compression process. The rotors and other internal components are constructed to ensure minimal friction and wear, even in the absence of oil.
  • 2. Dry Compression: Unlike lubricated screw compressors, oil-free screw compressors rely on dry compression methods. The compression chamber is designed to achieve compression without the presence of oil, ensuring that the discharged air or gas is free from oil contaminants. This is particularly critical in industries where oil contamination can have detrimental effects on product quality or equipment performance.
  • 3. Sealing Technology: Oil-free screw compressors employ advanced sealing technologies to prevent air or gas leakage between the high-pressure and low-pressure sides of the compressor. These sealing systems ensure efficient compression while maintaining the required clearances between the rotors and the compressor housing.
  • 4. Cooling Systems: Oil-free screw compressors utilize alternative cooling methods, such as air or water cooling, to dissipate the heat generated during compression. Efficient cooling is crucial to prevent overheating and ensure reliable operation.
  • 5. Filtration Systems: Oil-free compressors often incorporate high-quality filtration systems to remove particulates, moisture, and other contaminants from the incoming air or gas. These filtration systems help maintain the integrity of the compressor and ensure the delivery of clean, oil-free compressed air or gas.
  • 6. Application-Specific Solutions: Oil-free screw compressors are available in various sizes and configurations to meet specific application requirements. They can be tailored to deliver the desired air or gas flow rates, pressures, and purity levels.

It’s important to note that oil-free screw compressors generally have higher initial costs compared to lubricated compressors due to their specialized design and materials. However, they offer benefits such as reduced maintenance, minimized risk of oil contamination, and compliance with stringent industry standards or regulations.

When considering an oil-free screw compressor, it’s crucial to assess the specific application needs, air quality requirements, and operating conditions. Consulting with manufacturers or suppliers can help in selecting the most suitable oil-free screw compressor for a particular industry or process.

In summary, oil-free screw compressors are available and offer a reliable and efficient solution for applications where oil-free compressed air or gas is essential. These compressors are designed with specialized features to ensure dry compression, reliable sealing, effective cooling, and high-quality filtration.

air compressor

Can Screw Compressors Be Used for Medical Air Supply?

Yes, screw compressors can be used for medical air supply. Here’s a detailed explanation:

Screw compressors are commonly employed in various applications, including medical air supply systems. Medical air is a critical utility in healthcare facilities, used for various purposes such as respiratory therapy, anesthesia, and surgical tools. Here are some key points to consider:

1. Reliability and Efficiency:

Screw compressors are known for their reliability and efficiency. They can provide a continuous and reliable source of compressed air, ensuring a stable supply for medical applications. The rotary screw design allows for smooth and efficient compression, minimizing energy consumption and maximizing system performance.

2. Oil-Free Operation:

In medical applications, it is crucial to ensure the purity of the compressed air. Screw compressors can be designed and certified to provide oil-free air, eliminating the risk of oil contamination in the medical air supply. Oil-free screw compressors incorporate specialized sealing systems and filtration to prevent oil carryover, making them suitable for medical air applications.

3. Air Quality Standards:

Medical air must meet specific air quality standards to ensure patient safety and treatment effectiveness. Standards such as the European Pharmacopoeia (Ph. Eur.) or the United States Pharmacopeia (USP) define the required purity levels for medical air, including limits on particulate matter, moisture content, and microbial contamination. Screw compressors can be equipped with appropriate filtration and purification systems to meet these standards.

4. Integrated Drying and Filtration:

Some screw compressors designed for medical air applications incorporate integrated drying and filtration systems. These systems remove moisture and contaminants from the compressed air, ensuring it meets the required quality standards. Integrated drying systems can include refrigerated dryers, desiccant dryers, or membrane dryers, depending on the specific needs of the medical air supply system.

5. Redundancy and Backup Systems:

Medical air supply systems often require a high level of reliability and continuity. Screw compressors can be configured with redundancy and backup systems to ensure uninterrupted supply. Multiple compressors can be installed in parallel, with automatic switching mechanisms to maintain supply in case of a compressor failure or maintenance activities.

6. Monitoring and Alarms:

Modern screw compressors used in medical air supply systems often feature advanced monitoring capabilities. They can continuously monitor and record key parameters such as pressure, temperature, and system performance. Alarms and alerts can be configured to notify operators or maintenance personnel in case of abnormal conditions or potential issues with the compressor.

7. Compliance with Standards and Regulations:

When using screw compressors for medical air supply, it is essential to comply with relevant standards and regulations. These may include medical device regulations, electrical safety standards, and guidelines specific to medical gas systems. Compliance ensures that the medical air supply system meets the necessary safety and quality requirements.

In summary, screw compressors can be used for medical air supply, providing reliable and efficient compressed air for various medical applications. With their reliability, oil-free operation, adherence to air quality standards, integrated drying and filtration capabilities, and the ability to incorporate redundancy and monitoring features, screw compressors are well-suited for medical air supply systems in healthcare facilities.

air compressor

What Is the Efficiency of Screw Compressors?

The efficiency of screw compressors can vary depending on various factors, including the design, operating conditions, and maintenance. Here’s a detailed explanation of the efficiency of screw compressors:

1. Isothermal Efficiency:

Isothermal efficiency refers to the ideal efficiency of a compressor operating under isothermal conditions. In reality, screw compressors experience temperature rise during compression, and therefore, they do not achieve isothermal efficiency. The compression process in screw compressors is considered to be relatively close to isothermal compared to other compressor types, such as reciprocating compressors. This is due to the continuous and smooth flow of air or gas through the compression chamber, which helps in minimizing temperature differences.

2. Adiabatic Efficiency:

Adiabatic efficiency refers to the actual efficiency of a compressor, taking into account the heat generated during compression. Screw compressors typically have higher adiabatic efficiency compared to reciprocating compressors. The helical design of the rotors and the presence of intermeshing lobes allow for efficient compression with minimal energy loss. The adiabatic efficiency of a screw compressor can be influenced by factors such as the compression ratio, rotational speed, and discharge pressure.

3. Overall Efficiency:

The overall efficiency of a screw compressor takes into account various factors, including mechanical losses, power consumption, and auxiliary power requirements. Mechanical losses can occur due to friction between the rotors, bearings, and other moving parts. Well-maintained screw compressors with properly lubricated components and well-aligned rotors can minimize mechanical losses and improve overall efficiency. Power consumption is another factor affecting efficiency, and it can vary depending on the size, design, and operating conditions of the compressor.

4. Energy Efficiency:

Energy efficiency is an important aspect of screw compressors. It relates to the ability of the compressor to convert electrical energy into compressed air with minimal energy waste. Energy-efficient screw compressors are designed to optimize the compression process, reduce power consumption, and maximize output for a given input. Variable Speed Drive (VSD) screw compressors, for example, can adjust the rotational speed to match the compressed air demand, resulting in improved energy efficiency and significant energy savings.

It’s important to note that the efficiency of screw compressors can vary depending on the specific model, design features, and operating conditions. Regular maintenance, including proper lubrication, cleaning, and component inspection, is crucial for maintaining high efficiency levels. Additionally, selecting the right size and type of screw compressor for the intended application is essential to achieve optimal efficiency and performance.

In summary, screw compressors are known for their relatively high efficiency compared to other compressor types. While they may not achieve perfect isothermal efficiency, their adiabatic efficiency, overall efficiency, and energy efficiency make them suitable for a wide range of industrial applications.

China supplier Portable Screw Air Compressor 7 Bar CHINAMFG Xas38kd CHINAMFG   portable air compressorChina supplier Portable Screw Air Compressor 7 Bar CHINAMFG Xas38kd CHINAMFG   portable air compressor
editor by CX 2024-05-13

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