SUS304 Stepped Guide Pin Threaded Locating Pin Swiss CNC Machining Plunger

This fixture positioning shaft, also called stepped guide pin, threaded locating pin and stainless steel plunger, is a core precision machined part processed by our swiss cnc shaft production line. Raw material is precision drawn 304 stainless steel round bar. The whole workpiece is finished in one single clamping by 20-type swiss CNC lathe with guide bushing, integrating front micro locating tip, dual positioning shoulders, full thread section, long smooth guide rod and rear tiny locating boss without secondary clamping offset. After back spindle cutting, all parts go through full deburring and roller sand polishing to eliminate tool marks, then stainless steel passivation cleaning for rust resistance. As a reliable custom manufacturer with full OEM custom service, we can adjust total length, step diameters, thread specifications and tip geometry based on your CAD drawings or physical samples. Every finished swiss cnc shaft undergoes full dimensional inspection to guarantee assembly consistency for precision mechanical systems.

• Automation jig fixture positioning: fixture positioning shaft & threaded locating pin
• Micro motor transmission & guiding: stepped guide pin motor guide shaft
• Precision testing equipment stainless steel plunger & pressure plunger
• Electronic assembly machine linear guiding swiss cnc shaft
• Medical small equipment non-corrosive locating pin parts
• Office automation device positioning locking stepped shaft
• Packaging machinery linear sliding guide pin components

As a professional custom manufacturer for swiss cnc shaft series, we deliver full OEM custom service covering stepped guide pin, threaded locating pin, stainless steel plunger and fixture positioning shaft:

• Prototype Customization: Make samples according to customer CAD drawings, sketches or original physical samples.
• Dimension Customization: Modify total length, all step diameters, thread parameters and locating tip size.
• Material Customization: Optional stainless steel grades upon anti-corrosion strength requirements.
• Surface Customization: Adjust sandblast texture, passivation standard or add extra surface finishes.
• Flexible Order Support: Accept small trial sample orders and mass volume bulk production.
• Custom Export Packaging: Neutral carton packaging or customer branded labeling packaging.

• One-clamp swiss CNC full forming: Avoid coaxiality deviation caused by multi-time clamping, eliminate assembly jamming of threaded locating pin.
• ±0.005mm ultra tight tolerance: Solve loose positioning or stuck sliding issues of low-precision fixture positioning shaft.
• Mirror sandblasting + roller deburring: Remove all tool marks and sharp burrs, prevent scratching mating precision parts.
• 304 stainless steel passivation finish: Effectively stop rust oxidation for long-term humid workshop use.
• Dual integrated positioning shoulders: Higher positioning accuracy than single-step stepped guide pin, stable repeated positioning.
• Full batch dimensional sorting: Filter out out-of-tolerance stainless steel plunger, reduce client on-site assembly rejection rate.

• Raw Material Inspection: Verify stainless steel material certificate, bar roundness and straightness.
• In-process Real-Time QC: Continuous dimension monitoring during swiss CNC lathe machining to control tolerance.
• Post-Polishing Inspection: Check surface smoothness, confirm complete removal of cutting burrs.
• Surface Treatment QC: Test passivation anti-corrosion film uniformity and salt spray resistance.
• Finished Full Inspection: Digital micrometer measurement, coaxiality test, surface roughness inspection.
• Manual Sorting: Separate deformed, scratched or dimensionally unqualified swiss cnc shaft.
• Batch Test Report: Provide complete inspection report for each bulk shipment before packaging.