How to Lubricate the Guide Rails of a 3D Welding Table

1. Choosing the Right Lubricant

Ball guides (commonly used on X/Y axes): Lithium-based extreme pressure grease (NLGI grade 2) is recommended. It has moderate viscosity and anti-dust properties, suitable for medium-to-high speed reciprocating motion.

Roller guides (mostly used in heavy-duty parts such as the Z-axis): Polyurea-based grease (NLGI grade 3) is recommended. It has strong load-bearing capacity and high oil film stability.

High-speed guides (>10m/min): Synthetic ester grease should be used. It has good low-temperature fluidity and is not easily oxidized at high temperatures, avoiding coking.

⚠️ Do not mix different types of grease (such as lithium-based and polyurea-based), otherwise it will cause the oil film to break. Before changing the grease, the old grease residue must be thoroughly removed.

2. Lubrication Procedure

Clean the guide surface: Wipe the guide surface with a clean, lint-free cloth to remove dust, oil, and metal shavings. If necessary, use compressed air to blow clean the gaps.

Even Application of Lubricating Grease: Apply an appropriate amount of grease in a thin, even layer along the entire length of the guide rail, avoiding clumps that could attract dust and form abrasive particles.

Manual Distributed Operation: After starting the equipment, allow the slider to move back and forth along the guide rail 2-3 times to ensure the grease fully penetrates the raceway.

Remove Excess Grease: Wipe away any excess grease with a cloth to prevent contamination of the workpiece or environment.

3. Recommended Lubrication Frequency:
Regular Operating Conditions (8 hours of work per day, low dust): Lubricate every 500 working hours.

High-Dust or High-Humidity Environments (e.g., welding workshops): It is recommended to check and replenish lubrication every 200 working hours.

High-Frequency Use or Heavy-Load Scenarios: Adjust dynamically based on "daily processing time" and "guide rail movement speed" to avoid insufficient lubrication leading to dry friction.

4. Precautions:

Wear clean gloves before lubrication to prevent sweat from contacting the guide rail and causing corrosion.

Do not use a high-pressure water gun to wash the guide rails, as this will wash away the lubricant and accelerate corrosion.

If you notice high sliding resistance or abnormal noise, first check if the guide rails are parallel; if necessary, contact the manufacturer for calibration.