Custom CNC Machining Services In China
- Tolerances down to ±0.005 mm*
- 100+ CNC machines
- Prototype to production
Our numerical control processing capabilities
SINCERE offers top-tier CNC machining services, including CNC milling, CNC turning, drilling, tapping, and wire EDM. We guarantee high precision, quality finishes, and on-time delivery for your projects.
CNC Turning
Rotating workpiece, stationary tool. Ideal for cylindrical parts like shafts and bushings.
CNC Milling
Rotating multi-point tool, stationary workpiece. Machines complex shapes, slots, and 3D contours.
3 / 4 / 5-Axis CNC Machining
Multi-axis machining for complex parts, angled features, and precision contours with fewer setups.
Cnc Machining Parts
Aluminum CNC Turning Parts
CNC Turned Parts
Aluminum Die Casting Bracket
Custom Motor Parts via CNC Milling
CNC Machining Parts
CNC Turing Aluminum
CNC Milling Aluminum Parts
CNC Milling Aluminum
CNC Milling Aluminum Parts
Why Choose Sincere's CNC Machining Service
From prototypes to mass production, we handle any quantity. Get competitive pricing and a fast turnaround for your project.
CNC Efficiency
Our optimized machining processes achieve an average numerical control utilization rate exceeding 60%. This high efficiency directly translates to faster project completion, minimized idle time, and significant reductions in your overall labor and time costs, allowing you to meet tight deadlines without compromise.
Material Sourcing & Flexibility
We provide access to a vast inventory of standard and specialty metals and alloys. Through established partnerships and volume purchasing, we secure favorable pricing and ensure material availability, offering you both cost savings and reliable supply chain management for your projects.
Advanced Manufacturing Scale
Our facility houses over 100 state-of-the-art CNC machining centers and a range of automated die casting machines (300T to 1000T). This robust capacity, supporting an annual output of millions of parts, enables high-volume production with the economies of scale necessary to drive down your per-part cost.
Experienced Engineering Partnership
Backed by a dedicated team with over a decade of specialized CNC and manufacturing experience, we proactively optimize every stage of your order. Our expertise ensures efficient planning, precise execution, and proactive problem-solving, delivering exceptional value by saving you critical time and unnecessary financial expenditure.
CNC machining Materials
Experience ±0.005mm Precision, On-Demand CNC Machining Service & Reliable Support.
- Aluminum: Renowned for its optimal balance of lightweight properties, structural strength, and excellent corrosion resistance, aluminum is a fully recyclable and cost-efficient foundation for precision-manufactured components.
- Alloys: 6061, 7075, 2024, 5052, 5083, 6060, 6082, 2017 (Available in standard tempers such as T6, T651, H32, etc.)
- Finishing Options: Anodizing (Type II, Type III Hardcoat), Anodizing + PTFE Impregnation, Alodine / Chromate Conversion Coating, Electroless Nickel Plating (ENP), Powder Coating, Nickel Electroplating, Media Blasting, Passivation, Tumble/ Vibratory Finishing.
- Stainless Steel: Known for its excellent corrosion resistance and durability, stainless steel is a versatile material ideal for applications demanding hygiene, strength, and long-term reliability in harsh environments.
- Alloys: 303, 304/304L, 316/316L, 17-4 PH, 416, 440C, etc.
- Finishing Options: As Machined, Bead/Media Blasting, Polishing (Mechanical & Electropolishing), Passivation, Powder Coating, Nickel Plating, Decorative Chrome Plating, Gold Plating, Silver Plating, PVD Coating.
- Magnesium: Magnesium is the lightest structural engineering metal, prized for its exceptional strength-to-weight ratio, excellent damping capacity, and good electromagnetic shielding properties, making it a strategic choice for weight-sensitive aerospace, defense, automotive, and high-performance consumer electronics applications.
- Alloys: AZ31B, AZ91D, AM60B, ZK60A, WE43, QE22, AZ80, ZE41
- Finishing Options: Media Blasting, Chemical Film/Chromate Conversion Coating (Gold/Green/Iridescent), Anodizing (Hard Anodize for Mg), Passivation, Powder Coating, Electroless Nickel Plating, Paint & Primer, Laser Marking.
- Brass: Brass is a copper-zinc alloy renowned for its excellent machinability, striking gold-like appearance, and inherent antimicrobial properties. It offers good strength, corrosion resistance, and electrical conductivity, making it a premium choice for decorative, electrical, and precision mechanical components.
- Alloys: C360 (Free-Cutting), C260 (Cartridge Brass), C280 (Muntz Metal), C464 (Naval Brass), C485 (Leaded Free-Machining Naval Brass), etc.
- Finishing Options: As Machined, Bead/Media Blasting, Polishing (to Mirror/ Satin), Nickel Plating, Chrome Plating, Gold Plating, Silver Plating, Antiquing/ Patina, Clear Coating (Lacquer), Passivation.
- Alloy Steel: Alloy steel is engineered by adding elements such as chromium, nickel, and molybdenum to carbon steel, significantly enhancing its strength, toughness, wear resistance, and hardenability. It is a fundamental material for high-stress structural components, tools, and automotive parts.
- Alloys: 1215, 4140, 4340, 4130, 8620, 4340, P20, H13
- Finishing Options: Polishing, Black Oxide, Zinc Plating (Electro-Galvanizing), Nickel/Chrome Plating, Phosphating, Painting, Powder Coating.
- Copper: Copper is distinguished by its unparalleled electrical and thermal conductivity, excellent corrosion resistance, and inherent antimicrobial properties. This ductile and malleable metal is indispensable for electrical, thermal management, and hygienic applications.
- Alloys: C10100 (Oxygen-Free), C11000 (ETP/Electrolytic Tough Pitch), C12200 (Phosphorus Deoxidized), C14500 (Tellurium Copper), C17200 (Beryllium Copper), C18700 (Lead-Copper), etc.
- Finishing Options: Polishing, Plating (Nickel, Tin, Silver, Gold), Passivation, Electroless Nickel Plating, Anti-Tarnish Coatings, Brush Finishing, Media Blasting.
- Tool Steel: A class of high-carbon, high-alloy steels engineered for exceptional hardness, wear resistance, and thermal stability. It is the fundamental material for cutting tools, molds, dies, and components subject to extreme abrasion or pressure.
- Alloys: A2 (Air-Hardening), D2 (High-Carbon, High-Chromium), O1 (Oil-Hardening), S7 (Shock-Resistant), M2 (High-Speed Steel), H13 (Hot-Work), P20 (Pre-Hardened Mold Steel).
- Finishing Options: Precision Grinding & Polishing, Bead/Sand Blasting, Heat Treatment (Annealing, Hardening, Tempering), Nitriding, TiN/TiCN PVD Coating, Plating (Nickel, Chrome), Painting, Powder Coating.
- Titanium: Renowned for its exceptional strength-to-weight ratio, outstanding corrosion resistance, and excellent biocompatibility, titanium is a premium material chosen for the most demanding applications in aerospace, medical implants, and high-performance engineering.
- Alloys: Ti-6Al-4V (Grade 5), CP Titanium (Grade 2), Ti-6Al-4V ELI (Grade 23), Ti-5Al-2.5Sn, Ti-3Al-2.5V, Ti-6Al-2Sn-4Zr-2Mo
- Finishing Options: Polishing, Anodizing (Type II & III, Color), Media/Sand Blasting, Passivation, Chemical Etching, Laser Marking/Engraving, Bead Blasting, Tumbling.
Metal Surface Finishes
Experience ±0.005mm Precision, On-Demand CNC Machining Service & Reliable Support.
Customer Case
Experience ±0.005mm Precision, On-Demand CNC Machining Service & Reliable Support.
Aerospace
High-Precision Titanium Structural Component for Satellite Deployment Mechanism
Machined a complex, thin-walled Ti-6Al-4V structural bracket requiring tight tolerances (±0.013mm) and exceptional surface integrity. The part is critical for a satellite’s reliable deployment system in orbit.
7
Day Delivery
±0.005mm
Precision
CNC Machining Tolerance Capabilities
The following table details our standard and high-precision machining tolerances, demonstrating our capability to produce parts for the most demanding applications.
| Basic size range | Fine | Medium | Coarse | Very coarse |
| 0.5 up to 3 | ± 0.05 | ± 0.1 | ± 0.2 | – |
| over 3 up to 6 | ± 0.05 | ± 0.1 | ± 0.3 | ± 0.5 |
| over 6 up to 30 | ± 0.1 | ± 0.2 | ± 0.5 | ± 1 |
| over 30 up to 120 | ± 0.15 | ± 0.3 | ± 0.8 | ± 1.5 |
| over 120 up to 400 | ± 0.2 | ± 0.5 | ± 1.2 | ± 2.5 |
| over 400 up to 1000 | ± 0.3 | ± 0.8 | ± 2 | ± 4 |
| over 1000 up to 2000 | ± 0.5 | ± 1.2 | ± 3 | ± 6 |
| over 2000 up to 4000 | – | ± 2 | ± 4 | ± 8 |
Start Your Order
24/7 Project Support. Get Your Parts Fast, Anywhere.
01、Upload Design
Send your CAD file. We support all major formats.
02、Define Specifications
Select material and finishing. Our experts will provide recommendations.
03、Review & Order
Receive a detailed quote and confirm your order with transparent pricing.
04、Receive Parts
Get your finished parts delivered directly to you, ready for use.
FAQ About CNC Machining Services
What file formats do you accept for quoting and production?
Can you help optimize my design for better manufacturability and lower cost?
What materials can you machine, and do you offer material recommendations?
What are your standard tolerances, and can you hold tighter tolerances?
How long does prototyping and production usually take?
Prototyping typically takes 3–7 days after order confirmation, depending on part complexity and finish. Production runs (e.g., 100–10,000 pieces) may require 10–20 days. We offer expedited services — contact us for urgent projects.
What quality control measures do you have in place?
Request Your Quote to Begin with Confidence
From prototype to production, we deliver high-quality CNC machined parts with fast turnaround and competitive pricing, seamlessly.
