Stainless Steel Flange Bushing CNC Turning Parts Precision for Industrial Machinery

This custom flange shaft sleeve is a high-precision turn-mill composite CNC machining component. It is processed from solid metal bar stock, combining CNC turning and milling operations in one setup. With multi-step stepped outer circles, inner bores, radial threaded holes and flange mounting holes, it delivers excellent coaxiality and tight dimensional tolerance. Widely used in hydraulic systems, automation equipment, fluid control and precision machinery. We provide OEM custom service according to your drawings or samples.

Product Parameters Table

表格

Product Description

This precision multi-stage flange shaft sleeve adopts CNC turn-mill composite machining technology. We start from solid metal bar, removing excess material through lathe turning to form concentric stepped outer diameters, inner holes and flange base. Side radial holes and threaded features are completed in the same clamping to avoid repeated positioning errors and guarantee superior coaxiality and roundness.

Material Processing Introduction

• 304 Stainless Steel: Good corrosion resistance and moderate machinability, suitable for general industrial and wet environment applications. After machining, passivation treatment can be added to improve rust-proof performance.
• 316L Stainless Steel: Higher anti-corrosion property, ideal for marine, chemical and high humidity working conditions. It has slightly higher cutting difficulty and longer processing cycle.
• 416 Stainless Steel: Free-cutting stainless steel, excellent machinability, easy to get smooth surface and precise threads, perfect for high-volume precision turning parts.
• 6061/7075 Aluminum: Lightweight option with fast machining speed, great for low-load, weight-sensitive scenarios.

Every workpiece will go through full deburring to eliminate sharp cutting edges. We can offer multiple surface treatments: retain original turning texture, mechanical polishing to achieve brushed finish, passivation for stainless steel anti-rust, or hard chrome plating to enhance surface hardness and wear resistance.

From prototype sample testing to mass batch manufacturing, our QC team inspects key dimensions with precision measuring instruments to ensure consistent quality. We support custom development according to your 2D drawings or 3D models.

FAQ

Q1: What is turn-mill composite machining?

A1: Turn-mill composite machining completes both turning and milling processes on one machine in a single clamping. It is perfect for rotary parts with side holes, threads or flat features. It reduces re-clamping errors and greatly improves concentricity and precision compared with separate lathe and machining center processing.

Q2: How to select the suitable material for my flange shaft sleeve?

A2:

• 304 stainless steel: Cost-effective, good anti-rust performance for most general hydraulic and automation projects.
• 316L stainless steel: Best corrosion resistance for chemical, seawater and corrosive fluid environments.
• 416 stainless steel: Easy to machine, great surface finish and precise threads for high-precision components.
• Aluminum: Light weight, fast production, for non-corrosive and lightweight demand.

Q3: What tolerance can your CNC turning process achieve?

A3: Normal tolerance is ±0.02mm. For ultra-precision requirements, we can reach ±0.005mm. The achievable tolerance depends on material hardness and part structure, we will evaluate and confirm after reviewing your drawings.

Q4: What surface treatments are available for stainless steel turned parts?

A4: Available options: as-machined turning texture, mechanical brushing/polishing, passivation (anti-rust), hard chrome plating. Passivation is the most common choice for stainless steel to improve corrosion resistance without changing dimensions.

Q5: Can I order a prototype before mass production?

A5: Yes, 1-piece prototype is available for functional testing. Once the sample is approved, we can proceed mass production with stable quality control.

Q6: What drawing files do you accept for quotation and production?

A6: We accept STEP, IGES, STL, DWG and PDF files. Please send drawings with dimension, tolerance and material requirements, we will check manufacturability and provide formal quotation quickly.