Custom CNC Machining Parts Manufacturer in China
CNC milling, turning, and Swiss machining for custom metal and plastic parts — from prototypes to production.
ISO 9001
Quality Management
Free DFM Review
Before Quotation
Prototype, Small-Batch
& Production Orders
Engineering Response
Within 12 Hours
Advanced CNC
Machines
High Precision
±0.005 mm
Strict Quality
Control
Serving Global
Customers
Our Core CNC Machining Capabilities
Scintra provides precision CNC machining services for custom metal and plastic parts, from prototypes to production runs. Our core capabilities include CNC milling, CNC turning, Swiss CNC machining and surface finishing, supported by DFM review and quality inspection.
CNC Turning
For shafts, bushings, sleeves, spacers, threaded fittings and round precision parts.
CNC Milling
For housings, plates, brackets, frames, heat sinks and complex multi-face components.
Swiss CNC Machining
For small-diameter, long, slender and high-repeatability parts such as pins, connectors and micro shafts.
Custom Aluminum Extrusions
For structural, enclosure, and functional industrial components.
Processes
- CNC Milling (3/4/5-Axis)
- CNC Turning
- Swiss CNC Machining
- Drilling, Tapping, Reaming
- Boring, Grooving, Chamfering
Materials
- Aluminum (6061, 7075, 5052)
- Stainless Steel (303, 304, 316, 17-4)
- Steel (1018, 1045, 4140, etc.)
- Plastics (POM, PEEK, Nylon, PTFE)
- Brass, Copper, Titanium
Tolerance
- ISO 2768-F standard for general dimensions
- ±0.01 mm common for suitable features
- ±0.005 mm can be reviewed for critical dimensions
Surface Finish
- As Machined
- Fine Machined
- Polishing / Bead Blasting
- Anodizing / Hard Anodizing
- Passivation / Plating / Black Oxide
File Formats
- STEP / STP
- IGES / IGS
- SolidWorks
- AutoCAD
- DWG / DXF
Inspection
- CMM
- Calipers / Micrometers
- Thread Gauges
- Optical Comparator
- Material Certificates Available
From Drawings to Finished CNC Parts
Engineering support, machining, inspection, and delivery for custom metal and plastic components.
Scintra supports custom CNC machined parts from drawing review to final delivery. Our engineers review tolerances, materials, surface finishes, threaded features, and inspection points before quotation and production, helping overseas customers reduce sourcing risk and move projects forward efficiently.
Drawing Review
We review drawings, tolerances, materials, and finishes to ensure feasibility and accuracy.
DFM Feedback
Our engineers provide DFM feedback to reduce risk, improve performance, and control cost.
CNC Production
Advanced CNC machining for prototypes, small batches, and medium-volume production.
Inspection & Delivery
100% inspection for critical dimensions and global delivery with secure packaging.
Why Overseas Customers Choose Scintra
Reliable engineering communication, precision machining, and predictable delivery for custom CNC parts.
Since 2009, Scintra has supported overseas customers with custom CNC machined parts for prototype development, small batches, and medium-volume production. We focus on clear engineering communication, dimensional accuracy, stable inspection processes, and reliable delivery—helping customers reduce sourcing risk when buying CNC parts from China.
Engineering Support
Fast DFM feedback before quotation and production.
Precision Machining
Key dimensions can be controlled up to ±0.005 mm when required.
Quality Control
Material documents and inspection reports are available when needed.
Reliable Production
Support for prototypes, small batches, and medium-volume orders.
ISO-Based Quality Control for CNC Machined Parts
Material verification, in-process checks, final inspection, and quality documents when required.
Quality is controlled throughout the entire machining process, not only at final inspection. Each project can include material verification, in-process dimensional checks, final inspection, and inspection reports for critical dimensions when required.
Material Verification
Confirm material grade and certifications before machining.
In-Process Inspection
Dimensional checks during machining to ensure stability.
Final Inspection
CMM inspection and functional verification to drawing.
Quality Documents
Inspection reports, material certs, and traceability.
CNC Machining Case Studies
Examples of custom CNC machined parts produced for prototype, small-batch, and production applications.
304 Stainless Steel UAV Shaft
- Case: 304 Stainless Steel UAV Shaft
- Material: 304 Stainless Steel
- Process: Swiss CNC Turning
- Quantity: 50,000 pcs
- Critical Tolerance: ±0.005 mm
- Inspection: Micrometer + CMM sampling
- Result: Stable batch consistency for repeat production
6061 Aluminum Exterior Component
- Case: 6061 Aluminum Exterior Component
- Material: 6061 Aluminum
- Process: 6-Side Milling + Anodizing
- Quantity: Custom Batch
- Critical Tolerance: ±0.05 mm
- Surface Quality: Scratch-free, dent-free, spot-free
- Application: High-end consumer electronics
- Result: Excellent cosmetic finish & dimensional stability
316 Stainless Steel Medical Component
- Case: 316 Stainless Steel Medical Component
- Material: 316 Stainless Steel
- Process: Swiss CNC Machining
- Quantity: 60,000 pcs
- Critical Tolerance: ±0.01 mm
- Application: Medical Industry
- Result: Stable batch consistency & mass production capability
What Our Customers Are Saying
Real feedback from customers who rely on us for quality, precision, and on-time delivery.
Industries We Serve
Custom CNC machined parts for industrial, medical, robotics, automotive, aerospace, and electronics applications.
Automotive
High-precision automotive parts for engines, transmissions, and custom vehicle applications.
Industrial Equipment
We supply robust components for heavy-duty machinery, production equipment, and industrial automation applications
Robotics
We manufacture specialized components for robotic systems, improving accuracy, reliability, and overall performance in automated and robotic applications
Consumer Electronics
From prototype to production, access a broad selection of premium materials and finishes with full quality documentation—enabling faster innovation.
What Our CNC Machining Service Covers
From 2D drawings and 3D CAD models to custom metal and plastic parts.
Our CNC machining service supports custom metal and plastic parts from 2D drawings, 3D CAD models, or physical samples. Before quotation, our engineers review material grade, tolerance notes, threaded holes, surface finish, inspection points, and assembly requirements.
Brackets & Mounting Plates
L-brackets, gussets, base plates, and custom mounting solutions.
Housings & Enclosures
Precision housings, boxes, and covers with tight tolerances.
Shafts & Cylindrical Parts
Turned shafts, pins, spacers, bushings, and rollers.
Fittings & Connectors
Adapters, couplings, flanges, and fluid or pneumatic fittings.
Replacement Parts & Prototypes
One-off parts, functional prototypes, low-volume production, and repeat orders.
Frequently Asked Questions
Everything you need to know about our manufacturing capabilities, quality assurance, and delivery times.
What files do you need for quotation?
We recommend 3D STEP/STP/IGS files and 2D PDF drawings with material, quantity, tolerance and surface finish requirements.
Can you quote if I only have a sample or sketch?
Yes. We can review photos, sketches or samples first, but accurate pricing requires confirmed dimensions and material.
What tolerance can you hold?
Standard tolerance is ISO 2768-F unless otherwise specified. ±0.01 mm is common for suitable features, and ±0.005 mm can be reviewed for critical dimensions.
Do you support prototyping and small-batch production?
Yes. We provide prototyping, small-batch pilot runs, and full-scale production with consistent quality assurance.
Do you provide inspection reports?
Yes. We can provide dimensional inspection reports for critical dimensions upon request.
How can I get a quick, accurate quote?
Upload 2D/3D drawings with material, quantity, and critical requirements. Our engineering team will review and respond promptly.