Rust prevention is critical for single beam cranes, especially in humid, coastal, or industrial environments where moisture and corrosive substances (e.g., acids, salts) are present. Here’s a structured approach to protect your crane:

1. Material Selection

Corrosion-Resistant Alloys: Use stainless steel (e.g., 304/316 grades) or galvanized steel for structural components.

Aluminum Alternatives: For non-load-bearing parts, aluminum offers natural rust resistance.

2. Surface Treatments

Hot-Dip Galvanizing: Coats steel in a zinc layer, providing up to 50 years of protection in moderate environments.

Powder Coating: Apply epoxy or polyester coatings for a durable, scratch-resistant finish.

Zinc-Rich Primers: Use as a base layer before painting for extra protection.

3. Environmental Controls

Ventilation: Install fans or exhaust systems to reduce humidity in enclosed areas.

Dehumidifiers: Use in control rooms or storage areas to maintain RH below 60%.

Sealing: Ensure doors/windows are sealed to block moisture ingress.

4. Maintenance Practices

Regular Inspections: Check for paint chips, scratches, or rust spots every 3–6 months.

Cleaning: Remove dirt, salt, or chemicals with a mild detergent and water.

Touch-Ups: Repair damaged coatings immediately with matching paint/primer.

5. Lubrication & Additives

Rust Inhibitors: Use lubricants with rust-preventative additives (e.g., molybdenum disulfide).

Grease Guns: Apply grease to moving parts (e.g., bearings, trolleys) to displace moisture.

6. Advanced Protection

Cathodic Protection: In highly corrosive zones, install sacrificial anodes (e.g., zinc) to divert corrosion.

Vapor Corrosion Inhibitors (VCI): Place VCI emitters in storage areas to release rust-inhibiting molecules.

7. Monitoring & Testing

Thickness Gauges: Measure coating thickness periodically to ensure compliance with standards (e.g., ISO 2808).

Borescope Inspections: Check hard-to-reach areas (e.g., beam interiors) for hidden rust.

8. Training & Compliance

Operator Guidelines: Train staff to report rust signs early and avoid abrasive cleaning tools.

Adherence to Standards: Follow ASME B30.11 or ISO 12944 for coating durability and maintenance schedules.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment