CNC Machined Bars Australia
We manufacture custom CNC machined bars from steel, stainless steel, aluminium, brass, and titanium. Round bars, square bars, hex bars, flat bars, tapered and stepped bars — all CNC turned and milled to your exact specifications. Quote in 2 business days.
Bar Types We Manufacture
From simple standard profiles to complex custom-geometry bars with custom end features.
Round Bars
Shafts, spindles, dowels, and pins in any diameter and length.
Square Bars
Structural and alignment bars with precision dimensions.
Hex Bars
Hexagonal profile bars for fasteners and structural components.
Flat Bars
Flat-profile bars for straps, plates, and structural applications.
Tapered Bars
Graduated diameter bars for reducing sections and conical features.
Stepped Bars
Multi-diameter bars with shoulder features and precise steps.
Threaded Bars
Bars with internal or external threading for fastening.
Custom Profile Bars
Custom cross-section bars to your specific geometry.
Materials Available
We supply custom machined bars in all standard engineering materials — choose the right material for strength and durability.
| Material | Grades | Applications |
|---|---|---|
| Steel | 4140, 4340, mild steel | Industrial machinery, construction, aerospace, high-stress |
| Stainless Steel | 316, 17-4 PH | Marine, aerospace, oil & gas, corrosion-resistant |
| Aluminium | 6061-T6, 7075-T6 | Aerospace, lightweight structures, general engineering |
| Brass | C360, C385 | Decorative, electrical, low-friction applications |
| Titanium | Grade 2, Grade 5 | Aerospace, medical, extreme temperature applications |
Manufacturing Capabilities
CNC Turning
High-precision CNC turning for round and tapered bars. Excellent surface finish and tight tolerances on diameters.
- ✓ Diameters 1mm–600mm
- ✓ Threading & grooves
- ✓ Surface finish Ra 0.8µm
- ✓ Stepped profiles
CNC Milling
Multi-axis milling for bars with custom end features, flats, slots, and complex geometry.
- ✓ Custom end features
- ✓ Flats and slots
- ✓ Grooves and knurls
- ✓ Precision holes
Precision Grinding
Cylindrical and surface grinding for bars requiring super-tight tolerances and smooth finishes.
- ✓ ±0.005mm tolerances
- ✓ Ra 0.4µm finishes
- ✓ Straightness <0.01mm
- ✓ Concentricity control
Quality Assurance
- ✓Coordinate measuring machine (CMM) inspection available
- ✓Dimensional tolerances verified on all parts
- ✓Straightness and concentricity gauging
- ✓Surface finish verification (profilometer)
- ✓Material certifications on request
- ✓Full traceability documentation
- ✓ISO 9001 quality processes
Lead Times & Quantities
Quote Turnaround
2 business days for quote response
Single Bar (1-off)
3–5 business days typical
Production Runs (10+)
5–15 business days depending on complexity
Rush Service
Available — contact for 24–48h expedite
Industries We Serve
Construction
Automotive
Aerospace
Industrial Machinery
Marine
Agriculture
CNC Machined Bars FAQ
What bar types can you manufacture?
We manufacture custom CNC machined bars including round bars (shafts, spindles, dowels), square bars (structural, alignment), hex bars (bolts, fasteners), flat bars (straps, plates), tapered bars (reducing sections), stepped bars (multi-diameter components), threaded bars (fastening), and custom profile bars. All bars are CNC machined to your exact specifications.
What materials are best for high-strength bars?
Steel 4140 and 4340 are the standard choices for high-strength bars — tensile strengths up to 655–1,200 MPa depending on heat treatment. Stainless steel 316 offers good strength (517 MPa) with superior corrosion resistance. 17-4 PH stainless provides exceptional strength (1310 MPa) for aerospace applications. Titanium Grade 5 is ideal for extreme-strength-to-weight applications. Aluminium 7075-T6 offers the best strength in a lightweight material (572 MPa).
What tolerances can you hold on bar diameters?
Standard CNC machining on bars achieves ±0.05mm on diameter dimensions. Precision machining with grinding can hold ±0.01mm. For critical applications requiring super-precision, we offer precision grinding to ±0.005mm or better. Cylindricity and straightness are typically within standard tolerances — tighter control is available on request.
What is the typical lead time for custom bars?
Quote turnaround is 2 business days. Once order is confirmed, lead times depend on bar complexity and current shop load. Simple round or square bars typically deliver in 3–5 business days. Complex multi-feature bars may require 5–10 business days. Precision grinding adds 2–5 business days. Rush lead times are available — contact our engineering team for expedited scheduling.
Can you manufacture bars with custom end features?
Yes. We regularly machine bars with custom end features including threads, flats, tapers, shoulders, grooves, knurling, and custom profiles. End-face features like counterbores, taps, and holes are standard. CNC turning and milling allow single-setup machining for complex end features.
Do you offer surface finishing for bars?
Yes. Surface finishing is managed as part of our supply service. Options include surface grinding (Ra 0.8µm), polishing, hard chrome plating, nickel plating, and anodising (for aluminium). Specify your finish requirement on your drawing or in your quote request.
Get a Quote in 2 Business Days
Upload your drawing and receive a quote for custom CNC machined bars — any material, any profile. From single prototypes to production runs.
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