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Trusted by Engineers and Purchasing Leaders at the World's Most Successful Companies
JS Precision has produced over 300,000 unique parts for more than 1,000 clients worldwide, helping bring their custom projects from concept to reality.
From standard 3-axis operations to advanced 5-axis projects, we transform your concepts into high-quality components through precision engineering and expert craftsmanship.
Delivers accuracy and cost-efficiency for straightforward part geometries with clear dimensional requirements.
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Enables efficient multi-sided machining to streamline production of components with moderate complexity.
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Engineered for complex contours and demanding tolerances, allowing simultaneous multi-angle machining for innovative designs.
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Accelerate your product development cycle with our CNC prototyping services. We deliver high-precision prototypes and molds with industry-leading speed, supporting seamless design validation and iteration.
Explore PrototypingFrom initial low-volume production to large-scale manufacturing, we ensure consistent quality and exacting tolerances at any scale. Our flexible capacity adapts to your demand while upholding uncompromising reliability.
Explore ProductionAt JS Precision, we provide a comprehensive material portfolio for both plastic and metal CNC milling, engineered to meet stringent performance and durability requirements. Our selection supports optimal design outcomes, enabling you to balance precision, machinability, and cost-effectiveness for your project.
Aluminum provides an exceptional strength-to-weight ratio, superior machinability, and high corrosion resistance. Ideal for demanding applications in aerospace and automotive industries, our aluminum CNC milling service delivers precision components with high-quality finishes tailored to your specifications.
Typical brand
6061
7075
2024
5052
6082
7075-T6
5083
ABS offers good impact strength, toughness, and ease of processing. It is widely used in automotive parts, electronic housings, and consumer goods.
ABS
ABS+
Achieve refined aesthetics and enhanced durability for your custom CNC milled parts through professional surface finishing, which removes imperfections while providing protective resistance and improved performance.
Mechanical/chemical polishing creates reflective mirror finish without coating. Ideal for decorative metal parts.
Sandblasting/etching creates uniform non-reflective texture with anti-fingerprint properties. Used on electronic enclosures.
Electrochemical process removes micro-protrusions for ultra-smooth, corrosion-resistant surfaces. Common in medical/food-grade stainless steel.
Electric field deposits paint particles uniformly on complex shapes. Offers strong adhesion and eco-friendly process.
Electroplated chromium layer provides mirror-like finish (800-1000HV hardness). Used in automotive trim & bathroom fixtures.
Depositing 0.1-5μm gold layer enhances aesthetics and oxidation resistance. Ideal for electronic contacts/jewelry.
Chemical oxidation creates black Fe3O4 layer to reduce glare and improve rust resistance. Used on tools/machinery parts.
High-gloss black coating via spray/plating combines aesthetics and weather resistance. Applied to consumer electronics.
Hand/machine polished red copper with enhanced oxidation resistance. Used in sculptures/jewelry.
Chromate coating dyed gold for corrosion resistance and aesthetics. Applied to zinc alloy parts.
High-temperature carbon infusion boosts surface hardness (up to 60HRC). Used in gears/cutting tools.
Hard anodizing creates thick oxide layer (50-100μm) with insulation/heat resistance. For aerospace components.
With owned ISO-certified factories in China, we provide unmatched speed, control, and quality. JS Precision's integrated manufacturing network ensures 1-day lead times for CNC parts. Equipped with multi-axis mills, lathes, and automated lines, we guarantee precise results and reliable global shipping.
JS Precision partners with manufacturers across automotive, aerospace, medical, electronics, and robotics industries. From startups to global leaders, we deliver precision CNC machining and rapid prototyping solutions built for critical applications.
JS Precision made custom quality parts simpler and faster by integrating engineering, manufacturing, and supply chain. Aligning acoustic design, thermal performance, and manufacturability transformed a complex concept into a high-fidelity, mass-producible product.
JS Precision delivered mission-critical combustion parts for a leading aerospace manufacturer. We employed advanced multi-axis CNC machining with nickel-based superalloys to achieve components that withstand extreme thermal stress and precise aerodynamic tolerances.
This collaboration highlights how precision manufacturing enables next-generation robotic agility. By delivering high-accuracy, high-strength components for dynamic robotic systems, JS Precision helps turn advanced concepts into reliable, high-performance reality.
JS Precision supplies critical suspension uprights and control arms for Alpine Motorsport's GT racing program. Our high-strength, precision-machined components enhance handling and reduce weight for consistent on-track performance.
Sebastian Bachhofer, a senior systems engineer, utilized JS Precision's advanced 5-axis CNC machining to produce precision valve bodies that ensure reliable sealing and fluid control under extreme pressure.
JS Precision consistently meets stringent CNC Milling Tolerance standards to deliver exact measurements and reliable, high-quality CNC milled metals and plastics. Our standard follows ISO 2768m for metals and ISO 2768c for plastics.
| 3-Axis | 4-Axis | 5-Axis | |
|---|---|---|---|
| Maximum Part Size | 1200 × 600 × 600 mm | 1200 × 600 × 600 mm | 4000 × 1500 × 600 mm |
| Minimum Part Size | 3 × 3 × 3 mm | 3 × 3 × 3 mm | 3 × 3 × 3 mm |
| General Tolerances | ±0.05 mm | ±0.05 mm | ±0.03 mm |
| Lead Time | Simple parts as fast as 24 hours, most projects in 5 business days. | 5 business days for most projects. | 5 business days for most projects. |
Your success depends on reliable parts. Our CNC milling services deliver precision machining with tolerances as fine as ±0.005mm. You can get high-quality CNC milled parts for both prototypes and production runs.
Our ISO 9001 certified CNC milling facilities, together with ISO 13485, AS9100D, and IATF 16949, meet the highest international standards for quality and compliance.
We leverage advanced CNC machinery and a skilled team, supported by precision tools like CMMs, to ensure accurate dimensions and consistent performance in every project.
Each stage, from raw material to final inspection, follows strict quality control procedures. Full traceability and documented checks give customers worldwide confidence in every delivery.
With JS Precision's professional CNC milling service, you gain more than advanced machinery: you secure a commitment to exceptional precision, reliable on-time delivery, and dedicated engineering support for every custom project.
We combine high-performance materials with rigorous in-process inspections to ensure dimensional accuracy, excellent surface finishes, and consistent quality, part after part.
From rapid prototyping to volume production, our optimized workflow and capacity planning enable industry-leading turnaround, with many standard projects completed within 5–7 business days.
Our engineering team provides design-for-manufacturability (DFM) feedback, material selection guidance, and process optimization, turning complex concepts into reliable, cost-effective solutions.
Partner with JS Precision for CNC milling that delivers quality, speed, and expert support, all in one seamless service.
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CNC milling is a highly precise subtractive manufacturing process that transforms digital designs into physical parts by removing material with automated, rotating cutting tools.
The process begins with a 3D CAD model, which is translated into machine instructions (G-code). The workpiece is fixtured on the machine table, and a rotating cutting tool follows the programmed toolpath along multiple axes, accurately cutting away material to form features such as pockets, holes, threads, and complex surfaces.
While 3-axis milling moves in the X, Y, and Z directions, 4 and 5-axis CNC milling introduce rotational movement, enabling the production of highly complex geometries in a single setup. This combination of digital precision, multi-axis capability, and repeatability makes CNC milling a cornerstone technology across aerospace, automotive, medical, and industrial equipment manufacturing.
At JS Precision, we leverage advanced multi-axis CNC milling centers and in-house programming expertise to deliver components with tight tolerances, excellent surface finish, and efficient lead times—from prototype to production.
CNC milling provides a comprehensive set of benefits that enhance manufacturing capabilities:
CNC milling machines deliver exceptional accuracy, producing parts that consistently meet strict dimensional and surface finish requirements.
With multi-axis machining capability, CNC milling creates intricate contours, undercuts, and detailed features that are challenging for conventional methods.
Automated operation enables high-volume output with minimal downtime, significantly reducing lead times and increasing overall productivity.
Compatible with metals, plastics, and composites, CNC milling supports diverse applications and adapts quickly to design changes through programmable toolpaths.
Once programmed, the same part can be reproduced identically across production runs, ensuring uniformity and lowering variability.
While initial setup requires investment, CNC milling lowers per-part costs through reduced scrap, less manual labor, and optimized cycle times—especially in medium to high volumes.
Enclosed machining and automated tool handling minimize operator exposure to moving parts, contributing to a safer and more controlled manufacturing environment.
CNC milling produces precision components for diverse industries:
CNC milling manufactures critical engine parts such as engine blocks, cylinder heads, and pistons, ensuring strength, heat resistance, and stability under extreme conditions.
This process produces high-accuracy gears, splines, and shafts with tight tolerances and excellent surface finishes, essential for power transmission in automotive, industrial, and robotic systems.
CNC milling fabricates biocompatible, patient-specific implants and surgical tools, such as hip joints and dental prosthetics, meeting strict requirements for precision and surface quality.
Ideal for electronic enclosures and heat sinks, CNC milling ensures lightweight, EMI-shielding components with precise fits for consumer electronics and communication devices.
The technology enables rapid iteration and testing of functional prototypes and low-volume custom parts, allowing validation of form, fit, and performance before mass production.
CNC milling produces high-wear molds, dies, jigs, and fixtures with complex geometries and tight tolerances, supporting injection molding, stamping, and other processes.
It manufactures lightweight, high-strength turbine blades, structural brackets, and avionics housings, meeting rigorous performance and reliability standards for demanding environments.
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We operate a full spectrum of multi-axis CNC machining centers, including 3-axis, 4-axis, and 5-axis systems, to handle components from simple geometries to complex contoured parts.
Our service spans rapid prototyping to high-volume production, machining metals, plastics, and composites with tight tolerances (down to ±0.025 mm) and superior surface finishes.
CNC milling employs rotating tools to remove material from a stationary workpiece, ideal for complex 3D shapes. CNC turning rotates the workpiece against a stationary tool, best suited for cylindrical parts like shafts and pins.
CNC mills are engineered for harder materials (metals, engineered plastics) and high-precision tasks. CNC routers are typically used for softer materials (wood, certain plastics) and larger-format work where ultra-tight tolerances are less critical.
For designs without specified fillets, JS Precision typically applies a standard radius of R0.5–R1 mm to internal edges and a R0.3 mm radius or a chamfer to external edges, ensuring part safety and manufacturability.
Vertical milling centers (VMCs) have a vertically oriented spindle, ideal for detailed work on flat surfaces. Horizontal milling centers (HMCs) feature a horizontal spindle, offering superior chip evacuation and stability for heavy cutting and batch production.
Tool offset is a programmed compensation for tool wear, length, and diameter variations. It is critical for maintaining dimensional accuracy and consistency across production runs.
5-axis CNC machining allows simultaneous movement along five axes, enabling the complete machining of complex geometries in a single setup. This reduces lead times, minimizes errors from re-fixturing, and is a core capability at JS Precision for aerospace, medical, and automotive components.
JS Precision machines a wide array of materials including aluminum, steel, stainless steel, titanium, brass, copper, and various engineering plastics—selected based on your part's mechanical, thermal, and environmental requirements.
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