China 22kw 30HP Direct Drive Screw Air Compressors for Operating Condition Industry air compressor oil

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Technical Info of Immediate Travel Electric Motor Screw Air Compressors

Q1: What is the rotor pace for the air finish?
A1: 2980rmp.

Q2: What’s your lead time?
A2: usually, 5-7 days. (OEM orders: 15days)

Q3: Can you offer water cooled air compressor?
A3: Yes, we can (normally, air cooled type).

This autumn: What’s the payment term?
A4: T/T, L/C, Western Union, etc. Also we could accept USD, RMB, and other currency.

Q5: Do you accept customized voltage?
A5: Yes. 380V/50Hz/3ph, 380V/60Hz/3ph, 220V/50Hz/3ph, 220V/60Hz/3ph, 440V/50Hz/3ph, 440V/60Hz/3ph, or as per your requests.

Q6: What is your guarantee for air compressor?
A6: One year for the whole air compressor(not such as the consumption spare areas) and technical supports can be offered in accordance to your demands.

Q7：你们接受OEM订单吗？
A7: Of course, OEM orders are warmly welcome.

Q8: How about your customer service and after-sales service?
A8: 24hrs on-line support, 48hrs problem solved promise.

Q9: Do you have spare parts in stock?
A9: Yes, we do.

Q10: What kind of initial lubrication oil you used in air compressor?
A10: TOTAL 46# mineral oil.

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如何为您的家选择合适的空气压缩机

You will find that air compressors are indispensable tools for a variety of situations, including garages, home workshops, and basements. These tools can power a variety of tools, and each model is sized to suit the job at hand. Because air compressors have only one motor, they are lightweight, compact, and easy to handle. Using one air compressor to power several tools will also reduce the wear and tear on individual components. This article will introduce some important characteristics to look for when choosing the right air compressor for your home.

正位移

A positive displacement compressor applies pressure to a fluid, whereas a centrifugal one does the opposite. A positive displacement compressor creates the desired pressure by trapping air and increasing its volume. Its discharge valve releases the high-pressure gas. These compressors are used in industrial applications and nuclear power plants. The difference between a positive and negative displacement compressor is that a positive displacement compressor can compress and release air at a consistent rate.
容积式空气压缩机利用往复运动的活塞来压缩空气。活塞运动会减小压缩室内的空气体积，当压力达到所需值时，排气阀就会打开。这类压缩机常用于自行车气筒和其他气动工具。容积式空气压缩机具有多个进气口，并有多种结构配置。容积式空气压缩机可分为单作用活塞和双作用活塞，并可采用油润滑或无油润滑。
容积式空气压缩机与动压式压缩机不同。它将空气吸入压缩室，然后在阀门打开时释放压力。容积式压缩机广泛应用于工业领域，有单作用、双作用和油润滑等多种型号。大型活塞式压缩机带有通风的中间部件和安装在活塞销上的十字头。小型型号则采用带有轴承的永久密封曲轴箱。

无油

Oil-free air compressors have some advantages over their oil-lubricated counterparts. They do not require lubrication oil because they are coated with Teflon. The material has one of the lowest coefficients of friction and is layered, so it slides past other layers with little effort. Because of this, oil-free compressors tend to be cheaper and still deliver comparable performance. Oil-free compressors are a good choice for industrial applications.
The life of an oil-free air compressor is significantly longer than an oil-lubricated counterpart. These models can operate up to 2,000 hours, four times longer than the average oil-lubed compressor. Oil-free compressors also have a significantly lower operating noise than their oil-lubricated counterparts. And because they don’t need oil changes, they are quieter. Some even last up to 2,000 hours.
如果您的应用对空气纯度要求很高，那么无油空气压缩机是一个不错的选择。许多应用都需要超纯空气，即使是一滴油也会导致产品变质或损坏生产设备。除了健康风险之外，无油空气压缩机还能降低与油污染相关的成本，并将泄漏降至最低。此外，它还省去了收集、处理和处置废油的步骤。
A typical oil-free air compressor is very efficient, requiring only about 18% of the full load horsepower. However, oil-free compressors have a higher risk of premature failure and are not recommended for large-scale industrial applications. They may also use up to 18% of the compressor’s full capacity. They may sound appealing, but you must make sure you understand the benefits of an oil-free air compressor before choosing one for your industrial applications.

单级

单级空气压缩机专为单个气动工具或设备提供动力而设计。这类机器通常比双级压缩机体积更小，产生的热量和能量也更少。虽然它们并非为重载工业而设计，但对于包括汽车修理厂、加油站和各种制造工厂在内的多种应用仍然非常有效。它们也可用于钻井作业，因为它们适用于空气流量需求低的狭小空间。
A single-stage air compressor has one cylinder and two valves – the inlet and the delivery valves. Both of these valves function mechanically, with the inlet valve controlling torque and the delivery one controlling air pressure. Generally, single-stage compressors are powered by a gas engine, but there are also electric models available. The single-stage air compressor is the most common type of air compressor. It has a single cylinder, one piston, and one air cylinder.
The single-stage air compressors are used for small projects or personal use. A two-stage air compressor is more effective for industrial projects. Its longer air end life makes it more efficient. It is also more efficient for use in the automotive industry, where the engine has many cylinders. In general, single-stage compressors require a higher power level. The single-stage model is ideal for small projects, while a two-stage one is suitable for larger-scale arsenals.

CFM

空气压缩机的每分钟立方英尺数 (CFM) 是机器的输出功率。要计算 CFM 值，首先要查看压缩机的规格参数。您应该知道该设备的容积是多少立方英尺，以及它的压缩能力是多少磅/平方英寸。有了这些信息，您就可以计算 CFM 值。现在，您可以利用这些数值来选择适合您需求的空气压缩机。
The most common way to increase the CFM of an air compressor is to turn the regulator down. By turning the dial down, the air compressor will produce more than 10 CFM. You can also try connecting two output valves. Make sure that the settings are adjusted properly before you begin. This will ensure that your air compressor is functioning at its maximum efficiency and lifespan. To increase the CFM of your air compressor, first check that your regulator is calibrated for the desired pressure level.
要计算空气压缩机的 CFM（立方英尺/分钟），首先要确定机器的储气罐容积。然后，将该容积乘以充满储气罐所需的时间。最后，将结果除以 60 秒即可计算出 CFM。了解机器的储气量后，就可以选择合适的空气压缩机了。如果在狭小的空间内工作，则应购买带有大容量储气罐的机器。

压力

The PSI of an air compressor is the pressure that it can output. A typical air compressor has a gauge connected to the airline at the bottom, next to it, or between the two. The gauge tells the actual pressure of the air compressor, while the cut-out pressure is determined by the manufacturer. The manufacturer recommends that you set the cut-out pressure twenty to forty PSI higher than the factory recommended pressure. If you want to set the pressure for your nail gun, you can use the cut-in and cut-out pressures on your compressor, and the tank won’t exceed this range.
The PSI of an air compressor measures the force that it can deliver, which is often in pounds per square inch. For most air tools, you need at least forty to 90 psi. In general, reciprocating air compressors work on an on/off basis. This relationship is known as the duty cycle. All air compressors are rated for a particular duty cycle, such as fifty percent on and twenty-five percent off.
The Psig of an air compressor is not free, as many people believe. The PSI of an air compressor is not free, but it is essential to maintain it for safe operations. If you’re having trouble maintaining a consistent pressure, consider turning down the PSI of your compressor by 2 psig. This will determine the critical pressure for the machine. You’ll also increase the amount of energy in the system by one percent.

电源

空气压缩机的电源对其运行至关重要。如果没有正确的电压和电流，空气压缩机将无法正常工作。电源必须靠近压缩机，以便插入电源插座。如果距离插座太远，压缩机可能无法建立足够的压力。在这种情况下，空气压缩机内部的保险丝会熔断，以保护用户。电源应与压缩机保持安全距离。
Most manufacturers do not specify the power source for an air compressor. Depending on the horsepower, the compressor will require approximately four amps of power. A one-horsepower compressor would draw about twelve amps. If it were powered by a typical 120-volt household supply, its motor would exceed the 15-amp breaker capacity. A larger air compressor, however, will require a separate 15-amp power source, making it impossible to use it with this type of power source.
The power source for an air compressor is typically electrical alternating current (AC) that is equivalent to the voltage on a standard wall outlet. A three-phase air compressor, on the other hand, requires a special AC supply with three electrical offset pulses. Regardless of the type of air compressor, the power source must be compatible with the incoming power service. One of the most common problems when attempting to connect an air compressor to an AC power source is undersized wire. This results in low voltage and high amperes, tripping of over-load relays and blown fuses.

editor by czh 2023-01-04