When we are planning to buy a compressor, we are always faced with a wave of invoices that usually have similar content and brief information about the brand of parts and the country of manufacture, making it difficult for us to choose which device and which company to buy. To choose the best device Among the recieved invoices for an identical screw compressor in terms of capacity and power (horsepower), we must have information beyond a few brand names so that we can first of all choose the best compressor and secondly, ensure that the selling company is capable of providing after-sales service or not.
I suggest that during the technical and review meeting, ask the companies providing the purchase proposal questions such as the ones written below so that you can make a better comparison and choice:
Type of screw compressor (belt or direct coupling? And also what is the model and type of air conditioning unit?)
How many kilowatts is the actual motor power?
What type of electromotor was used? (Permanent induction motor, 3000RPM or 1500 RPM)
Is the efficiency of the motor IE4 or IE5?
How many cubic meters per minute does it aerate? What is the maximum working pressure of the device?
What is the material of the piping inside the device?
What is the maximum noise level of the compressor?
Is it possible to visit all stages of construction and also test the compressor completely before delivery?
How many years of after-sales service is there for the compressor?
Warranty conditions? (What parts are included? Is the entire device unconditionally guaranteed?)
How many years is the warranty period from the time of purchase? Or is it based on the number of hours of the device?
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