About Us
Operating from Shenzhen, China, PRECI5 operates as a specialized engineering and contract manufacturer focusing on advanced 5-axis CNC machining and tight-tolerance precision components. We serve international OEMs, tier suppliers, and product engineering teams who demand repeatable dimensional stability, full material traceability, and verifiable quality.
Rather than functioning as a transactional broker, we own, program, and operate an extensive fleet of Japanese CNC multi-axis machining centers. From prototype design-for-manufacture (DFM) verification to serialized production runs, we manufacture complex geometries in stainless steels, high-temp alloys, engineering polymers, and aluminum, holding tight tolerances down to 0.003 mm.
Core Manufacturing Capabilities
What We Manufacture
Our core competency centers on continuous simultaneous 5-axis milling, complex turn-mill configurations, and precision boring. We eliminate multiple setups, reduce cumulative stacking errors, and achieve surface finishes that meet critical functional and aesthetic criteria.
Complex 5-Axis Machined Components
Simultaneous multi-axis machining for sculptured surfaces, impellers, blisks, aerospace fluid manifolds, thin-walled structural frames, and multi-faceted housings requiring tight positional true tolerance.
Turn-Mill & Multi-Tasking Parts
High-precision cylindrical components with off-center cross-holes, mill flats, threads, keyways, and angular bores produced in single chucking via Mazak QTC and QTE live-tooled turn-mill centers.
Horizontal CNC Milling (HMC)
High-volume and multi-sided tombstone machining utilizing dual-pallet Mazak HCN5000 systems. Built for cast iron, valve bodies, large aluminum enclosures, and heavy production cycles.
Micro-Hole Drilling & Cavity Milling
Sub-millimeter orifice generation, high-pressure fuel orifices, optical aperture frames, medical fluidic channels, and fine-pitch thread milling in high-toughness alloys.
Precision Grinding & Honing
Internal, external, and surface grinding processes ensuring cylindricity, concentricity, and roundness under 0.002 mm with surface roughness capability down to Ra 0.2 μm.
Secondary & Finishing Operations
Controlled in-house and validated partner processes including EDM wire cutting, passivating, bead blasting, hard anodizing (Type II/III), electroless nickel plating, and heat treatment.
In-House Manufacturing Infrastructure
Factory at a Glance & Machinery Fleet
Production reliability requires verified spindle capacity. We deploy Japanese high-rigidity CNC machining centers, maintained under strict calibration and maintenance protocols to safeguard repeatability across batch orders.
Standardized machine controller architectures enable seamless NC code portability, reduced setup cycle times, and agile capacity scheduling between continuous batch runs.
| Equipment Model & Type | Configuration | Machine Count |
|---|---|---|
| Mazak C600 | Simultaneous 5-Axis Machining Center | 8 |
| Mazak VCN-430AL | High-Performance 4-Axis Vertical Center | 39 |
| Mazak HCN5000 | Horizontal Machining Center (Dual Pallet) | 2 |
| Mazak QTC100MY | High-Precision Turn-Mill Center (Y-Axis / Live Tooling) | 10 |
| Mazak QTE100 | High-Speed Precision CNC Turning Center | 12 |
| FANUC VMC | Vertical Machining Centers (Robodrill Series) | 18 |
| Other Ancillary CNC, Lathes, Grinding & Honing Units | 25 | |
| Total Installed Production Fleet | 114 Units | |
5-Axis Machining Center Detailed Specification
Primary technical parameters for critical complex geometry manufacturing.
| Model Name | Travel Envelope (X / Y / Z) | Spindle Speed | Tool Capacity | Machining Accuracy |
|---|---|---|---|---|
| Mazak C600 | 900 × 900 × 700 mm | 24,000 rpm | 30 Tools (ATC) | 0.003 mm |
Metrology & Quality Systems
Inspection Standards & Quality Control
Quality control at PRECI5 is not an afterthought at the packaging table; it is embedded in our machining methodology. Every critical feature undergoes First Article Inspection (FAI), in-process Statistical Process Control (SPC), and complete 3D coordinate validation in an environmentally controlled metrology lab.
Inspection Equipment Portfolio
| Metrology System | Measuring Envelope / Specs | Inspection Purpose |
|---|---|---|
| ZEISS CMM | 700 × 700 × 600 mm | 3D GD&T, contour, profile validation |
| Sirius CMM | 500 × 600 mm | Batch coordinate & positional checks |
| Surface Roughness Tester | Ra, Rz, Rmax analysis | Micro-finish and sealing surface verification |
| Concentricity Gauge | Runout & coaxial alignment | Turned shaft and bearing journal geometry |
| Hardness Tester | Rockwell / Vickers scale | Heat-treatment and core strength checks |
| Coating Thickness Gauge | Eddy-current & magnetic | Anodize layer and electroplate verification |
| XRF Spectrometer | Elemental PMI identification | Incoming raw stock material composition |
Inspection Protocols & Deliverables
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Positive Material Identification (PMI): Every batch of incoming stock is verified with our XRF spectrometer against Mill Test Reports (MTR) prior to cutting.
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In-Process Probing & Tool Monitoring: Renishaw on-machine probes conduct automated workpiece coordinate alignment and dynamic tool wear compensation.
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Full Metrology Documentation: Each delivery includes Full Dimensional CMM Inspection Reports, Bubble Drawings, Certificate of Conformance (CoC), and Raw Material Certs.
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Controlled Environment: Metrology room maintained at 20°C ± 0.5°C and controlled humidity to safeguard micrometric measurement accuracy.
Certified Quality & Environmental Frameworks
All certifications reflect audited and actively maintained quality management systems. Certificate registration numbers, accredited bodies, and detailed audit scopes are provided with formal production qualification packages.
Target Sectors
Industries We Support
Our operational standards and equipment envelope are tailored specifically for high-consequence industries where component failure is not acceptable.
Aerospace & Defense
Structural brackets, turbine fluid fittings, avionics enclosures, and gimbal chassis. High strength-to-weight titanium (Grade 5), Inconel 718, and 7075-T6 aluminum.
AS9100D Compliant ProcessesMedical & Life Sciences
Surgical instrument handles, endoscopic housings, orthopaedic components, and analytical fluid blocks. Medical grade 316L, 17-4PH, and PEEK machining.
ISO 13485 Strict CleanlinessAutomotive & E-Mobility
EV battery thermal management manifolds, sensor housings, powertrain components, and steering knuckles. Rigorous CPK tracking and PPAP submission capability.
IATF 16949 Serial ConsistencySemiconductor & Photonics
Vacuum chambers, precision optical alignment stages, wafer transfer arms, and laser mirror mounts requiring zero micro-burrs and Ra 0.2 surface finishes.
Sub-Micron Geometric PrecisionTechnical Workflow
Engineering & Production Approach
We bridge the gap between design engineering and physical machining. Every project undergoes a thorough front-end engineering gateway before raw stock enters the CNC chuck.
Comprehensive DFM Review
Detailed check of GD&T callouts, tool approach clearances, deep pocket radius feasibility, and wall thicknesses to eliminate costly machining bottlenecks.
CAM Simulation & Fixturing
Full 3D kinematic verification via Mastercam and Hypermill. Custom vacuum or hydraulic dedicated fixturing built to avoid vibration and deflection during heavy cut phases.
FAI & Metrology Approval
The first physical run undergoes complete 100% feature mapping on the ZEISS CMM. Serial production commences only after engineering sign-off on the FAI report.
Serialized Repeat Runs
Frozen machining programs, controlled tooling offsets, and serialized batch records guarantee that part #1,000 matches part #1 without baseline drift.
Procurement Rationale
Why Partner with PRECI5
Foreign engineering teams need supply chain certainty. Here is why overseas procurement leaders rely on our Shenzhen manufacturing facility for mission-critical parts:
Direct Asset Ownership
No broker markups and no outsourced manufacturing black-boxes. You work directly with the factory floor that houses the 8 Mazak 5-axis machines, 39 Mazak 4-axis centers, and ZEISS CMMs. Direct technical communication ensures faster engineering adjustments and complete IP security.
Shenzhen Supply Chain Agility
Situated at the heart of southern China's advanced manufacturing cluster, we leverage immediate regional access to certified raw billet providers, specialized surface finishing treatments, and fast international export channels through Shenzhen and Hong Kong ports.
Engineering-Fluent Communication
Your project inquiry is evaluated by bilingual manufacturing engineers capable of reviewing complex STEP, IGES, and 2D GD&T drawings. We speak your technical language, respond with practical cost-down recommendations, and provide clear scheduling updates.
Ready to Validate Your Next Precision Component?
Send us your 2D drawings and 3D CAD models. Our technical engineering team in Shenzhen will complete a formal DFM analysis and provide a transparent, itemized quotation within 24 hours.