Custom turned flanges provide high-load structural joining, tight geometric alignment, and leak-free mounting interfaces for complex mechanical assemblies. Each component is custom-machined directly from your engineering files, ensuring exact concentricity, exact pitch circle diameters, and strict surface finish control.

Technical Specifications

Parameter	Standard Machining Range
Outer Diameter	5 mm to 450 mm
Bore Tolerance	Down to +/-0.01 mm
Surface Roughness	Ra 0.8 to Ra 3.2 um
Concentricity	Within 0.015 mm
Machining Standards	ISO 2768-m / Custom Drawing

Typical Structural Configurations

Flat Flanges:

Disc interfaces built with clean bore dimensions and mounting hole arrays for baseline mechanical anchoring.

Stepped Flanges:

Machined with raised shoulders to establish precise alignment registers and controlled axial positioning.

Threaded Flanges:

Cut with internal or external threads to meet exact pitch diameter and thread depth guidelines.

Adapter Flanges:

Custom profiles designed to connect unequal shaft sizes, distinct bolt circles, or mismatched housings.

Material Selection Guide

Aluminum 6061-T6 / 7075:

Lightweight option with high strength-to-weight performance for weight-sensitive enclosures.

Stainless Steel 304 / 316L:

High-grade mechanical durability and oxidation resistance for demanding liquid and gas environments.

Carbon Steel 1045 / 4140:

High structural toughness engineered for heavy mechanical loads and high-stress machinery.

Brass and Copper Alloys:

Excellent electrical conductivity and thermal relief suited for power transmission components.

Secondary Precision Processing

Multi-Axis Drilling: Secondary machining for complex bolt patterns, angled cross holes, counterbores, and blind holes.

Custom Threading: Precision cutting for metric, UN, and NPT internal or external threading specifications.

Profile Milling: Dedicated machining for keyways, drive flats, locking grooves, and non-rotational surfaces.

Quality Assurance Procedures

Metrology Verification:

Dimensional checks across critical features using calibrated micrometers and optical comparators.

Coordinate Inspection:

High-precision CMM measurement for complex geometric features and concentricity control.

Batch Quality Control:

Every production lot is verified against engineering drawings to guarantee field assembly.

Surface Treatment Capabilities

Corrosion Protection: Options include passivating, zinc coating, and electroless nickel plating for environmental durability.

Wear Resistance: Anodizing and black oxide surface finishing to lower friction and improve surface hardness.

Custom Aesthetics: Controlled clear or color finishing tailored to match strict visual and functional requirements.

Target Industry Applications

01/

Automotive Systems: Sensor mountings, fluid lines, and housing adaptors requiring precise alignment and durability.

02/

Medical Equipment: Enclosure mounts and valve manifolds demanding tight tolerances and cleanable surface finishes.

03/

Industrial Machinery: Drive shaft adapters, pump covers, and high-load structural connection points.

04/

Electronics Enclosures: Specialized internal structural mounts requiring controlled thermal conductivity and shielding

Engineering Design Requirements

Engineering Files: 2D drawings showing critical tolerances and 3D CAD models in STEP or IGES format.

Material Specifications: Exact raw material grade, heat treatment requirements, and target batch sizes.

Finish Criteria: Required surface treatments, surface roughness parameters, and specific inspection guidelines.

FAQ

Q: Can these parts be manufactured directly from 3D CAD models?

A: Production utilizes STEP and IGES CAD files alongside 2D PDF drawings to ensure exact dimensional accuracy.

Q: What is the tightest tolerance achievable on critical bore diameters?

A: Standard turning operations consistently achieve bore and concentricity tolerances down to +/-0.01 mm on specified features.

Q: Are secondary hole patterns machined during the same production cycle?

A: Multi-axis secondary machining handles bolt patterns, cross holes, and keyways following primary turning operations.

Q: Which surface treatment best resists harsh operating environments?

A: Passivated 316L stainless steel or hard-coat anodized aluminum provide long-term resistance to environmental exposure.

Q: Can custom thread standards and non-standard pitches be cut?

A: Internal and external threads can be machined to custom pitch, size, and depth specifications as defined on drawings.

Q: What documentation is required to receive a production quote?

A: A 2D drawing with tolerances, 3D CAD file, material grade specification, surface finish choice, and quantity are needed.

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Custom Turned Flanges