ISO9001/IATF16949 Certified CNC Manufacturer in China | 24h Quotation | Free DFM Support
Upload PDF/STEP/IGES drawings in seconds.
Clear cost breakdown: materials, machine time, finishing, documentation.
Verifiable tolerances: typical ±0.01 mm; tighter on defined features.
Hero micro-trust: ISO 9001 / IATF 16949. Most quotes return in 24–48h. Complex multi-setup parts may take longer.
The more complete the info, the faster and more accurate your quote. This is the smallest set that truly helps:
Files — 3D (STEP/IGES) + 2D (PDF).
Good: “STEP + PDF.” Better: “STEP + PDF with GD&T.”
Material & Grade — e.g., “6061-T6 / 17-4PH / PEEK-450G.”
Quantity & Batches — e.g., “50 pcs now + 500/month.”
Key Tolerances & Datums — call out CTQs and inspection points.
Target Lead Time & Incoterms — e.g., “3 weeks, FOB / CIF / DDP.”
If your part involves complex 5-face geometry, note that we’ll route it to 5-axis CNC machining for complex aluminum/steel parts. Micro shafts and concentric fasteners go through Swiss-type turning for micro components.
We’ll show how your cost is built—and where savings come from.
Cost components
Materials + Machine Time (5-axis / Swiss-type / inspection) + Subcontract (anodize, heat-treat, coating) + Tooling/Fixtures + Quality Docs + Target Margin.
For plastic housings, cost depends on tooling strategies in injection molding and bridge tools in rapid tooling. For quick prototypes or fixtures, consider 3D printing for prototypes and fixtures to de-risk the design before committing to steel.
3 proven cost levers
Material alternatives — e.g., 6061 vs 7075; 316L vs 17-4PH.
Batching & cycle time — fixture for one-and-done clamping, reduce changeovers.
Right-sized tolerances & finishes — keep ±0.01 mm for CTQs; relax non-functional features.
Honesty box: what we don’t do
We don’t quote incomplete drawings just to “win the file.”
We don’t promise same-day on complex multi-setup parts.
We don’t low-ball and up-charge later. Scope changes go via ECR/ECN.
Acknowledgement ≤ 4h → Process Review ≤ 24h → Costing ≤ 48h → Quote & Clarifications
If sheet blanks or profiles are involved, we may pre-nest via laser cutting for sheet parts & blanks. For bridge quantities prior to hard tooling, we often suggest vacuum casting; for heavier wall sections, sand casting can be evaluated.
Urgent orders: If files are complete, material alternatives are allowed, and non-functional surfaces can be relaxed, we can attempt same-day assessment.
What we say we can make—we can measure and document.
5-Axis CNC — typical tolerance ±0.01 mm; datum-driven setups for complex geometry.
Swiss-Type Turning — micro shafts, fasteners, concentricity-critical features.
Inspection — CMM, optical metrology, surface profilometry (Ra/Rz), roundness/cylindricity, certified thread gauges.
Evidence — anonymized sample CMM pages and fixture/inspection photos available on request.
Documentation is part of the product for regulated builds. If your program is mold-centric, we align with export mold production practices and part validation flows in injection molding / rapid tooling.
Included on standard builds: basic material certs, inspection summary, lot-level labeling.
Added scope (quoted): PPAP (L1–L3), FAI/AS9102, detailed CMM sampling plans, special cleanliness/packaging, third-party tests.
Design validation aids: consider plastic models for design verification before cutting hard tools.
EV Enclosure — 6061-T6 — 5-Axis machining
Tight flatness and thread depth alignment across faces. Result: one-and-done fixturing; cycle time ↓18%; quote in 36h.
Micro Shaft — 17-4PH — Swiss-type turning
Concentricity on bearing seats. Result: verified with roundness/cylindricity checks; stable Cpk on CTQs.
Sensor Bracket — PEEK — 3D-printed prototype → rapid tooling
Warp risk and finish constraints. Result: fixture strategy + profiling; scrap ↓; consistent Ra within spec.
| Stage | Owner(s) | Key Tasks | SLA |
|---|---|---|---|
| Request Intake | Sales Rep | Log request, record details, send acknowledgment | ≤ 4 hours |
| Technical Review | Process Engineer & Supervisor | Feasibility analysis, process plan, risk identification | ≤ 24 hours |
| Material/Subcontract Evaluation | Materials Control | Verify stock & certificates, assess subcontract lead times | Concurrent with review |
| Cost Calculation | Cost Accountant & Sales Manager | Calculate direct & indirect costs, set margin | ≤ 48 hours |
| Quotation Drafting | Sales Rep | Populate template, attach reports | ≤ 4 hours after cost calc |
| Internal Approval | Sales Manager/Deputy GM | Approve price & conditions | ≤ 4 hours |
| Delivery & Follow-Up | Sales Rep & Customer Service | Send quotation, confirm receipt, log follow-up | ≤ 1 business day |
| Version Control | Sales Rep | Issue new versions, update CRM | Immediate |
| Expiry & Analysis | Sales Manager | Mark expired, trigger reminders, compile monthly KPIs | Monthly |
| Cost Item | Basis | Unit Cost | Qty | Subtotal |
|---|---|---|---|---|
| Material | BOM × unit price | ¥ 50.00 /kg | 2 kg | ¥ 100.00 |
| 5-Axis CNC Machining | Hours × machine rate | US $ 200.00 /h | 1 h | US $ 200.00 |
| Swiss Lathe Machining | Hours × machine rate | US $ 150.00 /h | 0.5 h | US $ 75.00 |
| Injection Molding | Mold fee + perpiece molding fee | US $ 500.00 + US $ 5.00/pc | 100 pcs | US $ 500 + US $ 500 |
| Subcontract Heat Treatment | Fixed batch fee | US $ 80.00/batch | 1 batch | US $ 80.00 |
| Total Direct Costs | — | |||
| Equipment Depreciation | Machine hours amortization | US $ 20.00 /h | 1 h | US $ 20.00 |
| Inspection Costs | Per piece or hour allocation | US $ 2.00/pc | 100 pcs | US $ 200.00 |
| Administrative Overhead | % of total cost (10%) | — | — | 10 % of total |
| Total Indirect Costs | — | |||
| Target Margin | ≥ 20 % | Margin applied |
Note: Figures are illustrative. Please replace with actual unit costs and convert to a single currency.
| Version | Date | Status | Customer Feedback | Next Action |
|---|---|---|---|---|
| V1.0 | 2025-05-20 | Sent | — | Confirm receipt in 1 day |
| V1.1 | 2025-05-22 | Revised | Customer requested 10 % discount | Recalculate costs & re-approve |
| V1.2 | 2025-05-24 | Pending | Customer needs expedited lead time | Coordinate production & update delivery |
| V1.3 | 2025-05-26 | Valid & Pending PO | Customer preparing PO | Follow up on PO signature |
| — | — | — | — | — |
Q1. How fast do you quote?
Most parts return a quote in 24–48h. If drawings are incomplete or involve multiple subcontract steps (e.g., anodize for 5-axis CNC parts, texture for injection molding), we’ll send a clarification list within 4h and a new ETA.
Q2. How do you calculate price? Will you change it later?
Materials + machine time + subcontract + tooling + quality docs. Once scope is confirmed, we don’t “price-creep.” For plastic programs, see rapid tooling vs. full molding trade-offs. Scope changes go through ECR/ECN.
Q3. What tolerances can you validate?
Typical machining tolerance is ±0.01 mm. On defined features (common in 5-axis parts and Swiss-turned shafts) tighter verification (e.g., ±0.002 mm) may be achievable—case by case.
Q4. Which documents and compliance can you provide?
PPAP (L1–L3), FAI/AS9102, CMM, material/heat-treat certs, RoHS/REACH, lot traceability. Mold programs follow export mold documentation where applicable.
Q5. Can you sign an NDA?
Yes. Upload yours or use our template. For design validation prior to tooling, 3D printing and plastic models reduce disclosure risk while accelerating DFM.
Q6. Do you support pilot runs before mass production?
Yes. We recommend pilot → mass. Bridge with vacuum casting or rapid tooling before full injection molding.
Q7. How do I reduce cost without changing function?
Consider material alternatives and batching on 5-axis parts; relax non-functional finishes on Swiss-turned components; use 3D printed prototypes before cutting tools.
Q8. Can you work with customer-specified materials or AVL?
Yes. State grades/specs and approved vendors in the RFQ. For molding resins and textures, reference injection molding guidelines.
CNC Machining Design Guide
Discover How SPI ™Super-ingenuity Delivers Precision CNC Machining for High-Performance Prototypes and Production Parts
