Tight-Tolerance Grinding Services
AXALLOY Precision provides tight-tolerance grinding for high-value components made from difficult-to-machine alloys. Based in Shenzhen, we support international engineering, procurement, and quality teams with repeatable grinding processes, inspection evidence, and export-ready documentation—from prototypes to controlled production.
Why Tight-Tolerance Grinding (and Why AXALLOY)
Grinding is often the most reliable way to achieve ultra-stable dimensions, flatness, roundness, and fine surface finishes on demanding alloys—especially after heat treatment or when machining alone cannot consistently meet the functional requirements.
AXALLOY is a strong fit when you need:
- Process control for critical fits and sealing surfaces
- Verified inspection results (not just "pass/fail")
- Material traceability and quality records for regulated or high-risk applications
- A supplier that can support prototype-to-production continuity
Tight-Tolerance Grinding Capabilities
Precision Grinding Types
- Surface grinding
- Cylindrical grinding
- Centerless grinding
Standard Grinding Performance
- Grinding tolerance: down to ±0.002 mm
- Flatness: down to 0.003 mm
- Roundness: down to 0.002 mm
- Cylindricity: down to 0.003 mm
- Surface finish: down to Ra 0.2 μm
Work Envelope
- Max surface grinding size: 600 × 300 × 350 mm
- Max cylindrical grinding diameter: Ø300 mm
- Max cylindrical grinding length: 1,000 mm
Typical Ground Features & Use Cases
Materials We Commonly Grind (Difficult Alloys)
AXALLOY specializes in alloys where heat, work hardening, and tool wear create machining risk. Common material groups include:
If your material is difficult, inconsistent, or sensitive to distortion, we can review the print and propose a stable grinding route.
Prototype to Production Support
- Prototypes: 1–20 parts
- Low-volume production: 20–500 parts
- Batch production: 500–10,000+ parts
- MOQ: 1 part
Grinding is commonly integrated as a final operation after CNC machining, EDM, and heat treatment—helping lock in critical features with minimized variation.
Engineering Support (DFM + Process Planning)
For tight-tolerance grinding projects, we can support:
- Drawing and tolerance review (GD&T, datum strategy, critical features)
- Recommendations on stock allowance for grinding
- Sequence planning (machining → heat treat → stress relief → grind)
- Fixturing approach to reduce distortion and preserve references
We focus on manufacturability and inspection strategy before committing to a production route—especially for thin walls, high-aspect-ratio geometry, and critical interfaces.
Lead Times
Expedited service available depending on scope and inspection requirements.
Inspection & Quality Documentation
We support engineering and supplier-quality requirements with a controlled inspection and documentation system.
Inspection Capabilities
- CMM range: 700 × 1,000 × 600 mm
- CMM accuracy: up to 1.8 + L/300 μm
- Optical measurement accuracy: ±0.002 mm
- Surface roughness measurement: Ra 0.05–40 μm
- Thread inspection, profile measurement, and calibrated inspection equipment
- Temperature-controlled inspection room
Available Quality Records
- Material Test Report / Mill Test Certificate
- Certificate of Conformance (CoC)
- First Article Inspection (FAI)
- Full dimensional inspection reports (ballooned drawing format available)
- Surface roughness report
- Heat treatment and coating certificates (when applicable)
- Material and lot traceability + special process records
- Inspection photos (upon request)
Best-Fit Applications
AXALLOY is best suited for customers who prioritize reliability, documentation, and controlled processes, including:
- Aerospace and aviation components
- Medical devices and precision instrument parts
- Semiconductor equipment hardware
- Energy, oil & gas, marine, and high-performance industrial equipment
- Robotics and automation systems requiring stable fits and alignment
Common Project Triggers
- Tight flatness/roundness/cylindricity requirements
- Surface finish targets where machining marks are not acceptable
- Post-heat-treat size control
- Supplier transition due to quality escapes or inconsistent repeatability
What to Send for a Fast, Accurate Quote
To quote tight-tolerance grinding effectively, please provide:
- 2D drawing (PDF) with GD&T and critical features identified
- 3D model (STEP/IGES/X_T preferred) if available
- Material spec and condition (annealed / hardened / heat-treated requirements)
- Quantities (prototype and expected repeat volumes)
- Required documentation (FAI, full inspection, roughness report, traceability)
- Target delivery date and any packaging requirements
Supported File Formats
3D
STEP/STP, IGES/IGS, X_T/X_B, SLDPRT, SAT
2D
PDF, DWG, DXF
Upload
Max 500 MB per RFQ (ZIP/RAR accepted)
Not the Ideal Fit
We may not be the best choice for commodity parts purchased purely on lowest unit price, projects with incomplete technical requirements or unclear acceptance criteria, or unverified certification demands and unauthorized component reproduction.
Request a Tight-Tolerance Grinding Review
If you have a difficult-alloy part that requires ±0.002 mm grinding tolerances, Ra 0.2 μm finishes, or validated inspection reporting, AXALLOY can review your drawing/model and recommend a stable, repeatable manufacturing route.
Send your RFQ with drawings, material, quantity, and required documentation to start.