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Compressor Failure Analysis

A compressor owned by Dhofar Cattle Feed experienced a failure of its air end bearing which caused noise and high temperatures. Upon inspection, the technician found the teflon coating was damaged. The compressor was replaced with a used air end temporarily while a new one is obtained under warranty. The failure was due to premature bearing damage which lost clearance and caused rotor-to-rotor contact.
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0% found this document useful (0 votes)
227 views5 pages

Compressor Failure Analysis

A compressor owned by Dhofar Cattle Feed experienced a failure of its air end bearing which caused noise and high temperatures. Upon inspection, the technician found the teflon coating was damaged. The compressor was replaced with a used air end temporarily while a new one is obtained under warranty. The failure was due to premature bearing damage which lost clearance and caused rotor-to-rotor contact.
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Failure Report

1. General Data

Company Name BIN SALIM ENTERPRISES


Customer Name DHOFAR CATTLE FEED - AL SAFWAH
Mobile Number +96891239610
E-mail rodel@dcfoman.com
Request Date DD/MM/YYYY 17-09-2023
Failure Date DD/MM/YYYY 27-07-2023

2. Smart Box Data

Model 2G ✔ 3G Mk5s Serial Number

Elektronikon Type MK5 LED’s Status OKAY

Remarks:

3. Machine Data

Model ZT55FF Serial Number APF204596


Element part number 1616 6770 81 Element Serial Number AIA2811928
Integrated Dryer type YES Serial Number of dryer

Running hours 5526 Loading hours 3518


manufacture date DD/MM/YYYY 2022 Commissioning date DD/MM/YYYY 14/12/2022

Atlas Copco Service Middle East O.M.C - Dubai Branch


Compressor Technique Service (CTS) Visitor’s Address: Telephone: +971 (0)4 3738 262
P.O BOX 122778 Gold & Diamond Park Fax: +971 (0)4 3233 961
Dubai, UAE Building No.2, 2nd Floor Office 2121 www.atlascopco.com/en-ae
VAT Reg No: 100281687200003
Failure Report
4. Details

Failure Area Element - Piston Failure component Other

Failure Reason Bearing damaged Failure Part Number 1616 6770 81


Failure Part Description Air End Failure Part Serial number AIA2811928

Description of failure

There was a hp element bearing failure which resulted to the compressor prod
ucing high noice and high temperature. On arrival, we could barely run the c
ompressor because of the noise level was high. We opened the inlet valve and
inspected and noticed the teflon coating were all gone.
The compressor was shutting down at 235 degC instantenously and intercooler
pressure was 3.88bar.

Root cause of the failure

This was caused due to premature failure of bearing which caused lose of rot
or clearance, hence running rotor-to-rotor and this is why the teflon coatin
g were all gone.

Atlas Copco Service Middle East O.M.C - Dubai Branch


Compressor Technique Service (CTS) Visitor’s Address: Telephone: +971 (0)4 3738 262
P.O BOX 122778 Gold & Diamond Park Fax: +971 (0)4 3233 961
Dubai, UAE Building No.2, 2nd Floor Office 2121 www.atlascopco.com/en-ae
VAT Reg No: 100281687200003
Failure Report

Action

We removed the air end and service an old air end and replaced it in the com
pressor. It is currently running with intercooler pressure of 2.7bar.

Planned Actions

We need to get the new air-end on warranty and replace the old one that is r
unning in the mean time.

Atlas Copco Service Middle East O.M.C - Dubai Branch


Compressor Technique Service (CTS) Visitor’s Address: Telephone: +971 (0)4 3738 262
P.O BOX 122778 Gold & Diamond Park Fax: +971 (0)4 3233 961
Dubai, UAE Building No.2, 2nd Floor Office 2121 www.atlascopco.com/en-ae
VAT Reg No: 100281687200003
Failure Report

5. Photographs

Atlas Copco Service Middle East O.M.C - Dubai Branch


Compressor Technique Service (CTS) Visitor’s Address: Telephone: +971 (0)4 3738 262
P.O BOX 122778 Gold & Diamond Park Fax: +971 (0)4 3233 961
Dubai, UAE Building No.2, 2nd Floor Office 2121 www.atlascopco.com/en-ae
VAT Reg No: 100281687200003
Failure Report

6. Comments

7. Signature
*For motor failure and converter (VSD) failure make sure to fill the FNS request

Atlas Copco

Name: NAMDI MARTIN ALOZIE


Signature

Atlas Copco Service Middle East O.M.C - Dubai Branch


Compressor Technique Service (CTS) Visitor’s Address: Telephone: +971 (0)4 3738 262
P.O BOX 122778 Gold & Diamond Park Fax: +971 (0)4 3233 961
Dubai, UAE Building No.2, 2nd Floor Office 2121 www.atlascopco.com/en-ae
VAT Reg No: 100281687200003

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