Hot-Dip Galvanized Australian Carbon Steel Round Bars - CNC Machined Industrial Roller Rods with Customizable Length
Price:
$0.5-2
MOQ:
1000pcs
Delivery Time:
30 days
Brand:
Qingdao Sande Tech Co.,Ltd
Product Description
CNC Machined Hot-Dip Galvanized Australian Carbon Steel Round Bars - Industrial Roller Steel Rods
Product Overview
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.
Key Specifications
| Parameter | Details |
|---|---|
| Material | Carbon steel (grades: C45, 1045, A36, or as required) |
| Surface Finish | Hot-dip galvanized (HDG) to AS/NZS 4680 or ASTM A123 |
| Machining Process | CNC turning, centerless grinding, cut-to-length, chamfering |
| Diameter Tolerance | ±0.05 mm to ±0.01 mm (depending on CNC precision) |
| Length | Custom from 50 mm to 6000 mm |
| Surface Roughness (Ra) | ≤ 1.6 μm (machined), ≤ 6.3 μm (as-galvanized) |
| Zinc Coating Thickness | 50-100 μm (typical for HDG) |
| Hardness | Customizable via heat treatment (e.g., induction hardening) |
| Standards | AS/NZS 4680, ASTM A123, ISO 1461 |
Manufacturing Process
- Raw Material - High-quality carbon steel round bars sourced from certified mills.
- CNC Machining - Precision turning, drilling, threading, or grooving as per customer drawings.
- Surface Preparation - Degreasing, pickling, and fluxing to ensure galvanizing adhesion.
- Hot-Dip Galvanizing - Immersion in molten zinc bath (approx. 450°C) for full coverage inside and out.
- Inspection & Testing - Dimensional check, coating thickness gauge, and visual inspection for uniformity.
- Packaging - Rust-proof bundling with plastic caps or wooden crates for export.
Key Features & Benefits
- 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.
Applications - Industrial Roller Steel Rods
| Industry | Typical Use |
|---|---|
| Material Handling | Conveyor roller shafts, belt conveyor idlers, gravity rollers |
| Mining & Quarrying | Heavy-duty track rollers, feeder rollers, impact rollers |
| Agriculture | Roller chains, seed drill rollers, sorting table shafts |
| Construction | Scaffolding caster rollers, concrete mixer drum support rods |
| Marine & Ports | Ship loader rollers, dock conveyor rollers (saltwater resistant) |
| Automation | Linear motion guide shafts, cam followers, support rollers |
Quality Control & Testing
- 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 & Delivery
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
Why Choose Our CNC Machined Galvanized Steel Rods?
✅ One-stop service - From raw steel to CNC machining to hot-dip galvanizing under one roof
✅ Australian standard expertise - Experienced in AS/NZS 4680 for Australia & NZ market
✅ Short lead time - In-house CNC lathes and galvanizing line
✅ Third-party inspection accepted - SGS, BV, Intertek available
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Qingdao Sande Technology Co., LTD
Location
South Building, China-South Korea Maker Industrial Park, Chengyang District, Qingdao City, Shandong Province
Contact Person
tian