Wuxi Shunda Plastic Pipes Welding Machine Co., Ltd
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How to properly maintain an electrofusion welding machine?

Aug 25, 2025

I. Daily Maintenance Key Points
‌1. Cleaning and Maintenance‌
Clean the electrode contact surface every 50 hours and wipe the contact tip with alcohol wipes (roughness <1.6μm).
Inspect the wire feed roll grooves and remove iron powder/weld shavings (blow out with compressed air).
‌2. Lubrication Management‌
Add high-temperature grease to the transmission mechanism every three months.
Check the hydraulic system oil level (must reach 2/3 of the sight glass).
‌II. Regular Inspection Cycles
‌1. Basic Maintenance‌
Inspect the insulation performance thoroughly every six months (resistance ≥ 1MΩ).
Replace worn parts (such as the wire feed roll/contact tip).
‌2. Mandatory Calibration‌
Perform calibration every 2000 welds or 12 months (whichever comes first).
Required Keep calibration records for future reference.

III. Seasonal Protection
Avoid direct sunlight in summer (operating in the shade/awning is recommended).

Winter: Preheat the equipment (run at no load for 5 minutes).

IV. Maintenance of Key Components

1. Welding Gun System
Replace the contact tip if the aperture exceeds the tolerance by 0.2mm. Immediately shut down if the insulating ferrule is damaged (to prevent short circuits).

2. Wire Feeder
Adjust the pressure to 1.5 times the wire diameter (e.g., 1.8N for 1.2mm wire). Ensure the straightening wheel position matches the wire diameter.

V. Safety Precautions
Ground resistance ≤ 4Ω for 380V equipment. Clean the cooling air duct monthly (if dust screen is clogged). Immediately shut down and inspect if abnormal heating occurs.

Product introduction and characteristics of PE electrofusion welding machine