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CNC Machining FAQs

Jan. 06, 2026

This section addresses some of the most frequently asked questions from engineers, buyers, and project managers working with Rollyu Precision for CNC machining services. It covers lead times, order volumes, surface finish expectations, and documentation standards to help customers plan and manage their projects efficiently.

 CNC Machining FAQs

1. What are the typical lead times for CNC machining projects?

Lead times depend on part complexity, material availability, quantity, and post-processing requirements.

  • Rapid prototypes: 5–10 business      days

  • Small to mid-volume production:      10–20 business days

  • High-volume runs or parts requiring anodizing, heat treatment,      or electropolishing: 20–30 business days

Expedited services are available upon request. All delivery schedules are confirmed during quotation based on actual capacity and supply chain conditions.

 

2. What is your minimum order quantity (MOQ)?

Rollyu Precision supports a range of order sizes:

  • Prototypes and single-piece machining: Accepted

  • Low-volume production: From 5 to      100 units

  • Full-scale production: 100+ units,      with pricing tiers based on quantity

We work closely with startups, R&D teams, and OEMs — no MOQ is required for initial development or validation builds.

 

3. What surface finish standards can Rollyu achieve?

Surface finish depends on the machining process, material, and any post-processing treatments applied:

  • As-machined: Ra 1.6–3.2 μm typical      (63–125 µin)

  • Polished: Ra 0.4–0.8 μm (16–32 µin)

  • Electropolished / Chemically polished: Ra < 0.2 μm for critical applications

  • Anodized / Bead-blasted / Powder-coated: Available per customer spec

  • Cosmetic surfaces: We follow      industry-specific standards, including ASTM, ISO 1302, or customer-defined      appearance criteria

All finishes are visually inspected and, if specified, verified using surface roughness testers (profilometers).

 

4. Do you provide material certifications?

Yes. Rollyu Precision offers full traceability and certification for all materials used:

  • Material Test Reports (MTRs) / Mill Certificates

  • RoHS & REACH compliance declarations

  • Biocompatibility certification for      medical-grade materials (e.g., Titanium Grade 5, 316L Stainless Steel,      PEEK)

  • DFARS-compliant or domestic source documentation, if required

 

Certifications are included upon request and form part of our standard quality documentation package for regulated industries such as medical, dental, robotics, aerospace, and semiconductor.


Have additional technical or sourcing questions for your CNC project?
Our engineering team is available to review your drawings, tolerances, and documentation requirements before quoting.