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High - precision stainless steel micro rod, CNC machined for use in miniature electronic devices, showcasing fine craftsmanship.
Steel step pin with finger size reference
Assortment of polished steel step pins on display
Closeup detail of miniature steel step pin
Digital caliper measuring precision steel step pin

Precision Steel Step Pin for Miniature Mechanical & Electronic Devices

  • Material: Stainless Steel (304/316), Aluminum Alloy (6061/7075); Custom metals available

  • Diameter: 0.5 mm – 2.0 mm (Custom sizes accepted)

  • Length: 1 mm – 20 mm

  • Tolerance: ±0.01 mm or better

  • Surface Finish: Polished, Ra ≤ 0.8 μm

  • Production Process: Precision CNC Turning & Milling

  • Application Fields: Electronics, Medical Devices, Instrumentation, Micro-Mechanical Systems

  • MOQ: 1000 pcs (Small batch orders accepted)

  • Customization: Available for size, material, and design

  • Packaging: Anti-static bags or customized packing for safe transport

  • Lead Time: 7–15 days depending on order quantity

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Description

Precision steel step pins are essential miniature components meticulously engineered for high-precision mechanical and electronic assemblies where dimensional accuracy and structural reliability are critical. Defined by their stepped cylindrical design, these pins enable seamless integration into tight-tolerance applications—with key dimensions (such as the smaller shaft diameter, verified at approximately 0.89mm via digital calipers) ensuring flawless fit and function.

Crafted from high-grade precision steel, these pins offer exceptional corrosion resistance, wear resistance, and dimensional stability—making them ideal for industries including medical device manufacturing (e.g., surgical instruments, diagnostic equipment), micro-electronics (such as sensor modules, connectors, and miniaturized circuitry), precision instrumentation, and advanced watchmaking. Fabricated through CNC turning and precision machining processes, each pin adheres to ultra-tight tolerances (typically within ±0.01mm) to guarantee consistency across production runs.

The polished surface finish not only enhances aesthetic uniformity but also reduces friction during installation and operational use—improving assembly efficiency and extending the service life of integrated systems. Whether utilized in standard configurations or customized for project-specific requirements, these high-precision steel step pins deliver the precision and durability needed to power critical miniature technologies.

Our CNC Machining Facilities & Capabilities

At JXD Machining, we operate a 5,000+ square meter fully integrated CNC machining facility, armed with a fleet of 40+ advanced pieces of equipment to meet diverse customization demands. Our core equipment lineup includes: 12 sets of 3-axis CNC milling centers (Haas VF-2), 8 sets of 4-axis machining centers (DMG MORI CMX 1100 V), 5 sets of high-precision 5-axis milling centers (MAZAK Variaxis i-700), 10 sets of CNC turning lathes (Okuma LT2000-MY), 3 sets of Swiss-type automatic lathes (Citizen M32), and a complete Surface Treatment line covering anodizing, sandblasting, and powder coating.

 

We excel in both flexible rapid prototyping and stable high-volume production: we support 1-50 pieces of rapid sampling and 10,000+ pieces of mass production, with the ability to process over 20 Materials including Aluminum(6061/7075), Stainless Steel(304/316), Titanium alloy (TC4), Brass, and engineering Plastics ( POM  / PEEK ). With a strict tolerance control range of ±0.005mm to ±0.05mm, we easily handle complex structures such as deep holes, curved surfaces, and multi-step components, serving key industries like Electronics, Medical devices, Consumer Products, and Industrial Automation.

On delivery efficiency, we balance speed and precision: rapid prototyping takes 3-5 working days, small-batch production (50-500 pieces) is completed in 7-10 working days, and large-volume orders are delivered within 15-25 working days (adjustable based on order scale and complexity).

Want to see our workshop layout, equipment, and production process? Click here for our “About Us” page.

 

Quality Assurance

At JXD Machining, our strict, streamlined quality & outbound process—backed by advanced tools—guarantees compliance:

Incoming Check: Verify raw material certificates + sample tests (hardness, composition) to rule out defects.

In-Process Inspection: Spot-check critical stages with CMMs to validate tolerances (±0.001mm) early.

100% Final Test: Full dimensional, surface roughness, and functional checks—only passers move forward.

Outbound Review: Secure packaging + batch labeling; test reports/certifications included for traceability.

Every component leaves ready to meet your standards. Learn more & view certificates → Click here

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