Processing Machinery
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POM caster
Problem Phenomenon
The axle hole of a POM caster deforms under heavy load
Cause Analysis
POM creeps under continuous heavy load, and rolling is not smooth after the axle hole deforms; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solution
Add metal bushings to the axle holes of heavy-load casters; select reinforced grades; verify by rolling durability test; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
Metalizing the axle holes of heavy-load casters is standard; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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