FAQs

Find answers in our General and Technical FAQs, covering quote requests, production documentation, and technical details. We update these regularly based on real project experience. Can’t find what you need? Contact us—if your question can help others, we’ll add it to this page.

Company & Services

KaiSpeed (full name: KaiSpeed Technology Co.,Ltd.) is a China-based on-demand manufacturing partner for prototypes and production parts. We focus on CNC machining (milling & turning), sheet metal fabrication, vacuum casting, injection molding, and comprehensive post-finishing for metals and plastics.

Automation & robotics, medical devices, consumer products, energy, aerospace, R&D labs, and more. If you have compliance or traceability requirements, please note them in your RFQ/PO.

We operate in Shenzhen, China and ship worldwide.

Quotes, Files & DFM

Send your RFQ to [email protected] or submit via our Online Form.
We accept STEP (.step/.stp), IGES (.igs/.iges), Parasolid (.x_t/.x_b), STL, SLDPRT, and 2D drawings (.pdf/.dxf/.dwg).

To speed things up, include: material(s), quantity, finish, tolerance notes, critical dimensions, and any assembly/context.

Yes. We review manufacturability and highlight potential risks (thin walls, deep pockets, tool reach, tight tolerances on cosmetic faces, etc.). We’ll suggest alternatives when it reduces cost, lead time, or risk.

For most RFQs: 24 hours. Complex assemblies may take longer—we’ll advise promptly.

Lead Time, Shipping & Logistics

Lead times depend on geometry, quantity, materials, and finishing. As a general reference:

  • CNC prototypes: often 3–9 business days for simple parts.

  • Complex or multi-process jobs: longer; we’ll confirm with your quote.

  • Tooling/molding projects: typically 2–5 weeks, depending on scope.

Express air from China to North America/Europe often arrives in a few days after dispatch (customs dependent). For heavy shipments, we can arrange air or sea freight via forwarders. alternatives when it reduces cost, lead time, or risk.

  • Standard: Ex Works (EXW) for rapid prototyping and regular production orders. Under EXW, you (the customer) arrange shipping, customs clearance, and all associated fees once the goods leave our premises.

  • Optional: Delivered Duty Paid (DDP) via DHL Express air freight—we handle transportation, customs, and duties to your address. (Availability depends on destination and shipment details; please confirm at RFQ/PO.)

Materials, Standards & Tolerances

Metals: Aluminum alloy, Steel, Brass, Copper, Titanium alloy, Zinc alloy, Magnesium alloy …

Plastics: ABS, PC, POM/Delrin, Nylon (PA), PEEK, PMMA/Acrylic, PETG, PE/HDPE, PP, etc.
If you need a specific grade/spec, include it in your RFQ.

Maximum part sizeOur machining processes adhere to ISO standards for quality and precision:

  • CNC Machining: generally ISO 2768-M (medium) for tolerances—balanced precision suitable for most mechanical parts.

  • Sheet Metal, Vacuum Casting: generally ISO 2768-C (coarse), addressing typical fabrication tolerances.
    Unless otherwise specified in your 2D engineering drawings, these are our defaults. If your drawing specifies different tolerances or standards, we will follow your requirements.

We support small precision parts up to larger plates/brackets. Please include overall size in your RFQ so we can select the right machines/fixturing.

Finishes & Post-Processing

  • Assembling & form-fitting

  • Fastening & metal inserting (e.g., threaded inserts)

  • Sanding & polishing

  • Blasting & brushing

  • Painting & printing (e.g., silkscreen/Pad printing)

  • Laser etching/engraving

  • Anodizing (clear/black/colors; hard anodize on request)

  • Electroplating (e.g., nickel, zinc), chroming

  • Chemical finishing & passivation

  • Powder coating
    We support one-stop surface finishing operations so your prototype can closely emulate the final product. If your print calls for specific standards or color/gloss, list them in your RFQ.

Quality & Inspection

  • ISO 9001:2015 certified.

  • Full dimensional inspection by experienced QC engineers with calibrated equipment. CMM or 3D scanning reports are available upon request.

  • OQC (Outgoing Quality Control) reports are available upon request.

  • We can provide material certificates, inspection reports, and Certificates of Conformance (CoC) as required.

  • Important: please request any specific documentation upfront on the order/PO. It becomes very difficult (often impossible) to obtain items like material certs afterward.

  • Our Statistical Sampling Plan is based on MIL-STD-105E with a Zero Acceptance (C=0) policy.

    • Samples are taken per the standard’s lot-size/code letter.

    • Acceptance number = 0 for the selected AQL—if a defect is found in the sample, the lot is rejected or subjected to 100% screening per agreement.
      If you require a specific AQL or alternative plan, please indicate it on your PO.

Yes. We select metrology methods appropriate to the tolerance (CMM, scanning, pin gauges, micrometers, etc.). Please flag CTQ features and provide a 2D drawing for clarity.

Orders, Payment & Pricing

  • New customers: unless otherwise agreed, payment in advance.

  • After a period of successful cooperation, we can consider 30-day credit terms based on order quantity and account history.

  • Tooling orders: except in very special cases, a 50% deposit is required in advance (even for customers with credit terms). The balance is typically due after T1 sample approval.

  • Terms are negotiable case-by-case—please state your needs in the RFQ/PO.

No strict MOQ. We support one-off prototypes to volume production; pricing improves with volume and simplified features.

Material, quantity, overall size, tolerances, tool reach/depth, finishing, and special processes (heat treat, anodize, plating). Early DFM tweaks can significantly reduce cost.

1) RFQ → 2) DFM/Quote → 3) PO + payment → 4) Manufacturing → 5) Inspection → 6) Shipping + docs → 7) After-sales support.

If production hasn’t started, we’ll re-quote based on updated files. If production is underway, we’ll review status and propose options (stop/hold/modify).

Drawings, IP & Confidentiality

Yes—2D drawings clarify tolerances, datums, threads, finishes, and inspection callouts. When in doubt, we follow the drawing. depending on scope.

Yes. We’re happy to sign an NDA. Your files are used only for quoting/production, shared internally on a need-to-know basis, and archived per your instructions after delivery.

Special Topics

Yes. For multi-process assemblies, we coordinate vendors and fixtures and deliver finished parts or sub-assemblies per your spec.

Yes—FAI/PPAP-style checks and pilot runs are available on request.

Use your drawing to label Critical to Quality (CTQ) features and cosmetic faces. This helps us plan toolpaths, fixtures, and inspection priorities to meet both function and appearance.

  • Prefer filleted internal corners over sharp 90° pockets; add radii ≥ tool radius.

  • Keep depth-to-diameter ≤ 4:1 for drilled holes; deeper holes may need special tooling/strategy.

  • Avoid ultra-thin walls; target ≥1.0 mm (metal) and ≥1.5 mm (plastic) unless justified by analysis/testing.

  • Flag threads, inserts, and mating fits on the drawing.

  • If you must hold a very tight tolerance on a cosmetic face, note it early so we can plan finishing accordingly.

Still have questions?

We’re here to help. Email [email protected] or use our Contact page. We aim to respond within 24 hours on business days.

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