· Product Overview

· Core Specifications

Material Performance

Manufacturing Standards

• Certification: ISO 9001 & ISO 13485 (medical-grade compliance available)
• Key Processes: 5-Axis CNC Turning → Precision Threading → Deburring → Passivation Polishing → CMM Inspection & Runout Testing
• Standard Parameters:
  • Dimensional Tolerance: ±0.005mm (ensures precise alignment with mating components)
  • Surface Finish: Passivated polished (Ra ≤ 0.8μm) for enhanced corrosion resistance and smooth motion
  • Custom Features: Multi-stepped profile for component positioning, integrated threaded end, and precision concentricity (≤0.01mm runout)

· Application Scenarios

• Industrial Automation: Robot arm drive shafts, conveyor system positioning axles, and sensor mounting rods.
• Medical & Laboratory Devices: Diagnostic instrument precision shafts, sample handling system drive axles, and surgical tool components (biocompatible).
• 3D Printing & CNC Machinery: 3D printer lead screw supports, CNC router linear motion shafts, and tool changer alignment rods.
• Aerospace & UAVs: Lightweight UAV rotor shafts, avionics system drive axles, and satellite equipment positioning rods.
• Marine & Offshore Equipment: Boat engine control shafts, offshore platform hydraulic system axles, and corrosion-resistant transmission components.

· Production Process Introduction

1. Raw Material Preparation: Cut certified 304/316 stainless steel bars to exact length and diameter for the shaft profile.
2. 5-Axis CNC Turning: Use high-precision CNC lathes to machine the multi-stepped profile and threaded end in a single setup for maximum concentricity.
3. Precision Threading: Form the integrated threaded end with a precision tapping tool to ensure secure, leak-free connections.
4. Deburring & Polishing: Remove sharp edges from the shaft steps, threads, and end faces, then polish the surface to a smooth finish.
5. Passivation Treatment: Apply a chemical passivation process to enhance corrosion resistance and ensure compliance with food/medical safety standards.
6. Quality Inspection: Perform CMM dimensional scanning, runout testing, and thread fit analysis to verify compliance with specifications.

· Packaging and Shipping Methods

• Packaging:
  • Individual Shafts: Wrapped in anti-scratch foam padding and sealed in moisture-proof, anti-static plastic bags to protect the polished surface and threaded end.
  • Bulk Orders: Packed in foam-lined partitioned boxes (prevents shaft deformation, thread damage, and mixing of sizes/materials).
• Shipping Options:
  • Express Delivery (DHL/FedEx): 3–5 business days for prototype or small-quantity orders, with temperature-controlled shipping available for medical applications.
  • Air Freight: 7–10 business days for medium-batch production runs.
  • Sea Freight: 20–25 business days for large-volume bulk orders.All shipments include full traceability documentation and compliance certificates.

· Process

· Frequently Asked Questions (FAQ)

• MOQ (Minimum Order Quantity): 500 pieces for standard configurations; 200 pieces for custom designs (with valid CAD files/technical drawings).
• Lead Time: Standard lead time is 7–12 working days (includes CNC machining, passivation, and inspection); expedited production (5–7 days) is available for urgent orders (additional fees apply).
• Customization Capability: Full end-to-end customization is supported—adjust material grade (304/316), shaft length/diameter, step geometry, thread specs, or surface finish (electropolishing for enhanced biocompatibility). Our engineering team validates designs for concentricity, torque transmission, and corrosion resistance.