3Q Machining | ISO 9001:2015 | Dongguan, China
One Stop Sourcing Your Custom Parts & Rapid Prototype
Advanced CNC Manufacturing & Precision Engineering Solutions: deliver engineering certainty. From 1pc rapid prototypes to 10,000+ pcs mass production with ±0.001mm accuracy.
We offer a one-stop solution of custom machining services for your Rapid Prototyping & Precision Machining Parts with our advanced 3-4-5 axis machinery, EDM, and Surface Treatment.
🚀 Instant DFM Feedback
Submit 3D CAD: .STEP, .IGES, .X_T, .SLDPRT
Japanese Market
Machining Precision
DFM Feedback
CNC Centers
IP Protection
Instant Project Estimator 3.0
Configure your industry requirements, equipment needs, and material specifications. Our DFM algorithm projects real-time manufacturing costs, global delivery timelines, and routes you to the precise technological solution.
Our DFM cost modeling is dynamically benchmarked against LME (London Metal Exchange) raw material spot prices, China regional Tier-1 manufacturing overhead rates ($15-$30/hr), and real-time international DDP freight tariffs.
Projection Dashboard
* AI models provide conceptual budgeting. Final quote requires engineering CAD review.
China Direct vs. Local Shops
Engineers frequently ask: "Is it worth outsourcing to China?" The answer lies in Supply Chain Density. By manufacturing directly in Dongguan, we bypass local distributors, reduce material costs by 40%, and integrate surface finishing within hours—not weeks.
DDP Global Shipping
We handle all customs clearances, import tariffs, and logistics to the US, EU, and UAE. Parts arrive at your door seamlessly.
Ironclad IP Protection
We operate strictly B2B with siloed networks. We sign and enforce international NDAs before you share any CAD models.
Global Procurement FAQ
Are you a trading company or a factory?
We are a 100% direct manufacturer. We own 50+ CNC machines and our engineering team handles all CAM programming in-house, eliminating middleman markups.
Do you provide Material Test Reports (MTRs)?
Yes. 100% material traceability is our standard. We provide EN 10204 3.1 MTRs and utilize in-house XRF PMI scanners to verify all alloys before machining.
Will there be a language barrier for complex GD&T?
Zero translation loss. Our technical sales and engineers fluently read English and Japanese prints, adhering strictly to ASME, ISO, and JIS engineering standards.
Why Choose 3Q Machining as Your Direct-CNC Partner in China?
In a complex global supply chain, the shortest distance between your CAD drawing and a precision part is a direct factory relationship. We deliver engineering certainty through direct communication.
01. Direct Engineer-to-Engineer
Talk directly to our programmers. Ensure zero technical translation loss and faster DFM cycles without trading markups.
02. Dedicated to Low-Volume
We specialize in 1 to 1000pcs custom production. Your complex prototype gets our lead engineer's full resource allocation.
03. SME Agility & Speed
As a specialized shop of 50 experts, we pivot quickly to meet your tight deadlines with an owner-involved quality culture.
04. Pure-Play B2B Foundry
We don't run retail brands. Your designs are secured by siloed data protocols and NDAs, ensuring absolute IP safety.
SME Advantage vs. The Market
vs. Trading Companies
- Transparency: Pay factory-direct rates ($15-$30/hr).
- Technical Control: We own the machines; no 3rd-party blame games.
vs. Mega-Factories
- Priority: Your 50pcs project is our #1 priority, not a filler for mass orders.
- Flexibility: Zero bureaucracy; fast pivots on design changes.
70% of Our Production is Exported to Japan
Japanese engineers demand absolute precision. Our facility meets JIS (Japanese Industrial Standards), ensuring every part—from robotics to aerospace—meets zero-defect requirements.
Japan Market Trust Rate
Strategic Comparison: Why Direct-Factory Matters
| Engineering Metric | Trading Companies | Mega-Factories | 3Q Machining (Direct) |
|---|---|---|---|
| Pricing Model | +30-50% Hidden Markup | High Overhead Costs | Direct: $15 - $30 /hr |
| Technical Control | Zero (Outsourced) | Rigid / Inflexible | 100% In-house Control |
| Precision Standards | Inconsistent / High Risk | Standard ISO Only | JIS Standard (±0.001mm) |
| Quality Control | Random Manual Check | Sample Sampling | 100% CMM & XRF Scan |
* Verified data based on 2026 industry sourcing benchmarks.
Precision Beyond Standard Limits.
When Casting & Standard Machining Fail, We Deliver.
Whether you require PEEK, Titanium, or complex geometries impossible via casting, our 5-axis capabilities bridge the gap—without expensive tooling.
1. 100% MATERIAL TRACEABILITY
No fake alloys. Every block of 7075 Aluminum or Stainless 316L is verified via Material Test Reports (MTRs).
2. COMPLEX GEOMETRIES
Simultaneous 5-axis CNC centers handle intricate undercuts and deep cavities with ±0.001mm accuracy.
3. RAPID, TOOLING-FREE
Avoid $10k+ mold costs. We manufacture 1 to 1000 parts on-demand to accelerate your R&D cycles.
Response in < 2 Hours: project@3Qmachining.com
Mose Li | Technical Founder
Leading 3Q Machining with 20 years of precision engineering mastery (Since 2006). Personally architecting the bridge between complex global design requirements and flawless Chinese manufacturing execution.
End-to-End Manufacturing Hubs
Navigate our specialized technical resources to optimize your custom part procurement, from material selection to final 5-axis execution.
CNC Services
5-axis milling, Swiss turning, EDM, and MIL-SPEC surface finishing.
View Capabilities →Materials Database
Compare machinability and cost for 100+ alloys (Titanium, Inconel, PEEK).
Access Database →Industry Solutions
Geo-compliant execution for Aerospace (AS9102), Medical, and Defense.
Browse Sectors →Equipment List
Review our 50+ spindle asset list, including Hexagon CMM and Mazak centers.
Inspect Factory →CNC Material Selection & Engineering Data
Choosing the right alloy or polymer dictates product lifecycle, machining complexity, and ultimate cost. At 3Q Machining, our engineers leverage deep metallurgical knowledge to optimize your toolpaths.
| Material Grade | Hardness & Characteristics | Target Products | Ideal Tolerances | Standard Finishes | Cost Index |
|---|---|---|---|---|---|
| Aluminum 6061-T6 | Excellent machinability. Hardness: HB 95. | Automotive, Electronics, Robotics. Enclosures, heatsinks. | ± 0.01mm | Color Anodizing, Bead Blast | Low ($) |
| Aluminum 7075-T6 | Exceptional strength. Hardness: HB 150. | Aerospace, Defense, Drone parts. Aircraft fittings. | ± 0.01mm | Hard Anodizing (Type III) | Medium ($$) |
| Stainless Steel 316L | Corrosion resistance. Hardness: HRB 95. | Medical, Marine, Food. Surgical tools, pump valves. | ± 0.01mm | Passivation, Electropolish | High ($$$) |
| Titanium Grade 5 | Extreme strength. Hardness: HRC 36. | Medical Implants, Aerospace. Bone screws, blades. | ± 0.01mm | Ra 0.8 / Polishing | Very High ($$$$) |
| PEEK (Plastic) | Chemical resistance. Stable polymer. | Semiconductor, Medical. Insulators, bearings. | ± 0.02mm | As Machined | High ($$$) |
| POM (Delrin) | High stiffness. Low friction. | Automotive, Consumer products. Precision gears. | ± 0.02mm | As Machined | Low ($) |
Unsure which material balances your structural requirements and budget?
Our lead engineers provide comprehensive material analysis based on your CAD geometry and end-use application.
Request Material ConsultationWe Speak MIL-SPEC & ASTM Standards.
Specialized surface treatments are as critical as the cut itself. While we support rapid additive prototyping, our core DNA is high-precision CNC machining with guaranteed compliance for mission-critical industries.
Aerospace & Aviation
Modern equivalents to legacy Alodine. RoHS/REACH compliant trivalent chromium for Tier-1 aerospace contractors.
Defense & Tactical
Extreme abrasion resistance and NIR-compliant matte signatures for tactical mounts and UAV components.
Medical & Surgical
Zero iron contamination for implants. Biocompatible surfaces that meet sterile environment standards (Stainless 316L).
Marine & Subsea
Impenetrable barriers against salt-fog and high-pressure caustic subsea robotics environments.
Need a specific MIL-SPEC or industry standard?
Consult Our Surface EngineersDirect Factory Response in < 2 Hours: project@3Qmachining.com
Global CNC Sourcing FAQ
Global Knowledge Hub: Mitigate offshore manufacturing risks. We have synthesized definitive answers regarding IP protection, DDP logistics, and EN 10204 material traceability to empower procurement teams across North America, Europe, the Middle East, and Asia-Pacific.
How does 3Q Machining guarantee ±0.001mm sub-micron tolerances?
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Is my CAD data and intellectual property safe when outsourcing to China?
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How do you prevent counterfeit materials and ensure traceability?
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What are your standard lead times for prototypes and production runs?
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Do you handle surface finishing, coating, and sub-assembly?
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Do you offer DDP shipping & customs clearance for international clients?
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Can you comply with AS9102, ISO 13485, and NACE MR0175 standards?
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What is your MOQ, and how do you maintain a $15-$30/hr cost advantage?
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Explore Our Engineering Ecosystem
From individual machine tolerances to complete turnkey assemblies, navigate our technical resources to find the right manufacturing path for your CAD design.
CNC Services
Precision milling, turning, and micro-machining capabilities.
View Capabilities →Materials Guide
100+ metal and plastic alloys with detailed machinability data.
Select Material →Equipment List
50+ multi-axis CNC centers and sub-micron inspection tools.
Inspect Facility →Industries
Aerospace, Medical, and Robotics sector-specific solutions.
View Sectors →Turnkey Solutions
Consolidated supply chain: Molding, Casting, and Assembly.
Explore Turnkey →