Hot-Dip Galvanized Australian Carbon Steel Round Bars - CNC Machined Industrial Roller Rods with Customizable Length

These CNC Machined Hot-Dip Galvanized Australian Carbon Steel Round Bars are precision-engineered solid steel rods designed for heavy-duty industrial roller applications. Manufactured from high-grade carbon steel and finished with a uniform hot-dip galvanized coating, they offer exceptional corrosion resistance, surface smoothness, and dimensional accuracy. Ideal for use in conveyor rollers, track rollers, mining equipment, and agricultural machinery.

1. Raw Material - High-quality carbon steel round bars sourced from certified mills.
2. CNC Machining - Precision turning, drilling, threading, or grooving as per customer drawings.
3. Surface Preparation - Degreasing, pickling, and fluxing to ensure galvanizing adhesion.
4. Hot-Dip Galvanizing - Immersion in molten zinc bath (approx. 450°C) for full coverage inside and out.
5. Inspection & Testing - Dimensional check, coating thickness gauge, and visual inspection for uniformity.
6. Packaging - Rust-proof bundling with plastic caps or wooden crates for export.

• CNC Precision - Consistent diameter and straightness for smooth roller assembly and reduced vibration.
• Superior Corrosion Resistance - Hot-dip galvanizing protects against rust, moisture, chemicals, and salt spray - ideal for outdoor, marine, or mining environments.
• Smooth Surface - Post-machining and galvanizing ensure low friction for roller rotation and bearing fit.
• High Strength & Durability - Carbon steel core withstands heavy loads, impact, and wear.
• Customizable - Length, end finishing (flat/chamfered/threaded), secondary operations (drilling, keyway, etc.) available.
• Australian Standard Compliant - Meets AS/NZS 4680 requirements for galvanized coatings on steel structures and components.

• Dimensional inspection - Digital calipers, micrometers, CMM.
• Coating thickness - Magnetic thickness gauge (every batch).
• Adhesion test - Cross-cut or bend test per AS/NZS 4680.
• Salt spray test - Optional for extreme environment validation (up to 1000 hrs).
• Surface roughness - Profilometer measurement.

Packaging:

• Individual plastic sleeve + foam end caps (for machined surfaces)
• Steel banded bundles or wooden crates
• Anti-rust paper and desiccant for long-distance sea freight

Delivery:

• Lead time: 30-45 days based on quantity & complexity
• Port: Qingdao / Tianjin / Shanghai
• Documents: Commercial invoice, packing list, mill certificate, galvanizing test report