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Trusted by Engineers and Purchasing Leaders at the World's Most Successful Companies
LS Manufacturing has delivered reliable experience to over 28,000 customers by producing more than 250,000 complex parts
From robust 3-axis machining to complex 5-axis geometries, we bring your most demanding designs to life with engineering-grade accuracy, rigorous quality control, and manufacturing expertise trusted by industry leaders.
Accelerate your design cycle with our rapid CNC milling. We deliver precision prototypes in days, not weeks, for effective form, fit, and function testing to de-risk development.
Learn MoreBridge seamlessly from prototype to market. Our scalable capacity and strict process controls ensure consistent quality and reliability, whether for pilot runs or full-scale manufacturing.
Get Instant QuoteSelecting the right material is critical for part performance, cost, and durability. We provide a comprehensive library of plastics and metals, each verified for consistent quality. Our team offers expert guidance to match your design requirements with the ideal material, ensuring optimal strength, finish, and performance in the final application.
Aluminum offers an exceptional strength-to-weight ratio, outstanding machinability for complex geometries, and strong corrosion resistance. It is a premier choice for high-performance applications in aerospace, automotive, and consumer electronics, where reducing weight without compromising durability is critical.
ABS provides high strength and impact resistance with good heat tolerance, making it ideal for injection molding and machining durable, functional components in consumer electronics, automotive interiors, and structural prototypes.
At LS Manufacturing, we offer a variety of custom surface finishes to enhance the appearance, performance, and durability of your CNC milled parts. Our surface finishing options are designed to meet your specific aesthetic and functional requirements.
A chromate-based chemical conversion coating primarily for aluminum. It creates a thin, conductive layer that provides excellent corrosion resistance and serves as an ideal substrate for paint adhesion. It is a lightweight, economical alternative to anodizing, widely specified in aerospace, automotive, and military applications for corrosion protection and electrical conductivity.
A Type II anodizing process that builds a hard, transparent, and glossy oxide layer on aluminum. It significantly increases surface hardness and corrosion resistance while enhancing the metal's natural luster. Available in a wide spectrum of permanent colors, it is essential for consumer electronics, automotive trim, and architectural components demanding durability and a premium appearance.
A mechanical finishing process that propels fine media (e.g., glass beads) at high pressure to clean, texture, or matte a surface. It effectively hides minor tool marks, creates a uniform, low-glare satin finish, and provides an optimal key for subsequent painting or coating. Ideal for enclosures, handles, and parts requiring a clean, consistent, non-reflective aesthetic.
Creates a consistent, unidirectional satin grain on metal surfaces through precision abrasive brushing. This finish masks fingerprints and light scratches, offers a refined tactile feel, and reduces light reflection. It provides a premium, non-glare appearance for consumer-facing components like appliance panels, architectural hardware, and electronic bezels.
An immersion process where a charged part is coated with a paint film drawn from a water-based solution through electrophoresis. It provides exceptional, uniform coverage—including edges and recesses—with superior corrosion resistance. Primarily used as a primer or single coat for automotive frames, agricultural equipment, and high-durability industrial components.
An electrochemical process that removes a microscopic layer of material, smoothing micro-peaks and brightening the surface. Beyond achieving a brilliant, clean finish, it passivates stainless steel and other alloys, drastically improving corrosion resistance, decontamination, and cleanability. Critical for medical implants, semiconductor tools, pharmaceutical, and high-purity fluid systems.
An electroplating process that deposits a thin, adherent layer of gold onto a substrate. It provides superior corrosion resistance, excellent electrical conductivity, and a luxurious, decorative appearance. Used for high-reliability electrical connectors, RF shielding, commemorative items, jewelry, and aerospace components where performance, solderability, or aesthetics are paramount.
The surface finish directly from the CNC machine, characterized by visible, consistent tooling marks. It is the most cost-effective and fastest option, with no added processing time. Ideal for non-visible functional components, internal prototypes, and applications where minimizing cost and lead time is the highest priority over cosmetic appearance.
A chemical treatment for stainless steel that removes free iron from the surface and promotes the formation of a stable, inert chromium oxide layer. This process maximizes the alloy's natural corrosion resistance without altering part dimensions. A mandatory step for medical instruments, food processing equipment, and marine components to prevent rust and contamination.
A progressive mechanical abrasion process that refines a metal surface to a smooth, high-gloss, or mirror finish. It dramatically reduces surface roughness (Ra), improving cleanability, light reflection, reducing friction, and elevating visual appeal. Standard for luxury goods, food-grade equipment, optical components, and architectural features.
A specialized post-processing technique for thermoplastics (like ABS, PC, PMMA) that uses solvent vapors to gently melt the surface layer. This eliminates layer lines and microscopic imperfections, resulting in a crystal-clear, glossy, and smooth finish that enhances optical clarity and chemical resistance. Ideal for clear lenses, light guides, and display models.
An electrochemical process that deposits a protective zinc coating on steel or iron substrates. The zinc acts as a sacrificial anode, providing galvanic corrosion protection. It can be supplemented with various chromate conversions (clear, blue, yellow, black) for added resistance and color. A cost-effective and reliable solution for fasteners, brackets, automotive parts, and hardware.
Leverage our extensive network of ISO-certified CNC workshops across China to accelerate your supply chain. We integrate advanced machining centers, grinders, EDM, and automated lines to deliver precision parts with shortened lead times, clear communication, and dependable global logistics—from prototype to production.
LS Manufacturing partners with leading companies across the automotive, aerospace, medical, electronics, and robotics industries. From individual inventors to global enterprises, we deliver precision CNC Milling machining and manufacturing solutions trusted for quality and reliability worldwide.
When a top smartphone brand faced immense pressure to launch its flagship device, it turned to LS Manufacturing. The challenge: mass-producing ultra-precise aluminum alloy frames with ±0.005mm tolerances and a flawless anodized finish—within an aggressive 4-week timeline.
The MIT Satellite Systems Laboratory (SSL) required reaction wheel components with nanometer-level vibration stability for its latest research satellite. LS Manufacturing delivered using 5-axis micro-milling and specialized space-grade alloys, achieving unprecedented precision for orbit-level performance.
KUKA Robotics needed high-precision, lightweight robotic arms for delicate wafer handling in sterile cleanroom environments. LS Manufacturing employed carbon fiber composites and titanium alloys, optimizing stiffness-to-weight ratios and minimizing particulate generation.
Porsche required lightweight yet ultra-rigid battery enclosures for the Taycan electric sports car. Using high-strength aluminum alloys and advanced welding techniques, LS Manufacturing achieved exceptional dimensional stability under thermal and vibration stresses.
Oilfield services leader Schlumberger needed large-scale valve blocks that could withstand 10,000-psi pressures and highly corrosive undersea environments. LS Manufacturing delivered with high-nickel alloys and non-destructive testing, ensuring zero failures under extreme conditions.
LS ensures precision with our CNC Milling Tolerance standards. We commit to exact measurements, benefiting clients with consistent, high-quality results, optimized for search visibility. Our standard tolerances for CNC milled metals are ISO 2768-m and ISO 2768-c for plastics.
| 3-Axis | 4-Axis | 5-Axis | |
|---|---|---|---|
| Maximum Part Size | 1000 x 500 x 500 mm | 1000 x 500 x 500 mm | 4000 x 1500 x 600 mm |
| Minimum Part Size | 5 x 5 x 5 mm | 5 x 5 x 5 mm | 5 x 5 x 5 mm |
| General Tolerances | ±0.1 mm | ±0.1 mm | ±0.05 mm |
| Lead Time | Delivery of simple parts can be as fast as 1 day. | 5 business days for most projects. | 5 business days for most projects. |
Follow these key design principles to ensure your parts are not only functional but also manufacturable, cost-effective, and reliable. Adhering to these recommendations helps prevent common machining issues, reduces production delays, and optimizes part performance.
Internal radii should be at least 1/3 of the cavity depth. Use larger radii whenever possible.
Diameter Φ1.5–5 mm: depth = 3× diameter.
Diameter ≥Φ5 mm: depth = 4–6× diameter.
We support custom threads per customer requirements.
For metals: 0.8 mm; For plastics: 1.5 mm. Thicker walls ensure better structural integrity and machining reliability.
Minimum width: 0.5 mm; Minimum depth: 0.1 mm.
Text can be added via CNC engraving or laser marking for permanent marking.
Minimum diameter: 1 mm. For best results, limit hole depth to 4× the diameter to maintain accuracy and tool stability.
Your success depends on reliable parts. Our CNC milling services deliver precision-milled components with a 90% first-pass yield, supporting both prototype validation and production runs.
Our ISO 9001 certified CNC milling facilities, together with ISO 13485, ISO 14001, and IATF 16949, meet the highest international standards for quality management, environmental responsibility, and industry-specific compliance.
With more than 30 quality engineers and over 20 advanced inspection tools—including CMMs, optical measuring systems, and material analyzers—we ensure every milled part meets exact dimensional and performance specifications.
From material certification to final inspection, each stage follows documented quality procedures. Full traceability and real‑time updates give you complete confidence in every delivery, anywhere in the world.
Choose LS Manufacturing for your CNC machining needs and experience our commitment to quality through our rigorous quality control processes. Contact us today to discuss your project and see how we can help you achieve your goals.
With LS Manufacturing, your CNC milling project is supported by more than advanced machines; it's backed by a commitment to precision, speed, and expert collaboration. From prototype to production, we deliver quality parts that keep your designs on track and your deadlines within reach.
Your parts deserve flawless execution. We machine to tolerances as tight as ±0.01mm, ensuring consistent fit, reliable assembly, and smooth operation in every application.
We help you move at speed. Operating from our modern workshops, we optimize workflows to deliver quick‑turn parts, often within one day, so your projects stay ahead of schedule.
You're never alone in the process. Our engineers provide DFM guidance, material selection advice, and ongoing support to ensure every part performs as intended, on time and within spec.
A customer's words mean more than ours see what our satisfied customers have said about how we fulfilled their requirements.
CNC milling is a precise, automated manufacturing process that turns your digital design into a finished part by removing material with rotating cutting tools. It starts with your 3D CAD model, which is converted into step‑by‑step machine instructions. These commands guide the cutting tool along precise paths to shape the raw material into the exact geometry you need, ensuring high repeatability and tight tolerances for both prototypes and production runs.
This flexibility makes CNC milling essential across industries—from aerospace and automotive to medical devices and consumer electronics—where precision, complexity, and reliability are non‑negotiable.
CNC milling offers numerous advantages for manufacturing:
Precision & Repeatability: Achieve tight tolerances and consistent quality across every unit, eliminating fit issues and reducing assembly rejects.
Complex Geometry Capacity: Machine intricate contours, deep cavities, and multi-axis features unreachable with conventional methods, unlocking advanced design possibilities.
Material & Application Flexibility: Process a wide range of metals, plastics, and composites, making it suitable for prototypes, tools, and end-use components across industries.
Efficiency at Scale: Automated operations enable fast turnaround and high-volume output without sacrificing accuracy, speeding time-to-market.
Cost-Effective Production: Optimize material use, minimize waste, and reduce manual labor—lowering per-part costs especially in mid to high volumes.
Integrated Quality & Safety: Automated precision reduces human error and enhances workplace safety while ensuring every part meets specification.
From concept to component, CNC milling supports innovation where accuracy, complexity, and reliability are non-negotiable. Its adaptability makes it the go-to process for producing functional prototypes, tooling, and final parts in sectors demanding the highest standards.
Manufacture high-strength blocks, heads, and housings that withstand extreme temperatures and pressures in automotive and aerospace systems.
Produce splines, shafts, and complex gear profiles with exacting tolerances for smooth, reliable power transfer.
Create biocompatible, patient-specific implants and surgical tools that meet stringent regulatory and performance requirements.
Machine lightweight, EMI-shielding, or thermally conductive casings that protect sensitive circuitry and support compact designs.
Iterate quickly with high-fidelity prototypes that test form, fit, and function before committing to production tooling.
Produce durable, high-precision mold cores, cavities, and cutting fixtures that ensure consistent output in downstream processes.
Fabricate lightweight, structurally critical brackets, mounts, and engine parts that comply with rigorous industry certifications.
Stay updated with the latest news and announcements from LS Manufacturing. Explore our latest articles below.
We operate a comprehensive range of 3‑axis, 4‑axis, and 5‑axis CNC milling centers. This allows us to match the right machine to your project's complexity—from simple prismatic parts to components with complex contours—ensuring optimal precision, efficiency, and cost‑effectiveness. Our multi‑axis setups also reduce the need for repositioning, which shortens lead times and improves dimensional consistency across batches.
Our capabilities encompass precision milling for prototypes and production, handling parts up to 1000 × 500 × 500 mm. We achieve tight tolerances (down to ±0.01 mm), work with a wide material library, and offer a full suite of surface finishes. From single parts to volumes of 10,000+, we ensure consistency and quality. We also support custom clamping and fixturing for fragile or unusually shaped components, so even challenging geometries can be machined reliably.
CNC milling uses a rotating cutting tool to remove material from a stationary workpiece, ideal for complex, prismatic shapes. CNC turning rotates the workpiece against a stationary tool, best for creating cylindrical or conical parts like shafts and bushings. The processes are complementary and can be combined for complex components. Many of our customers use both services in tandem—for example, a turned shaft with milled flats or grooves—to streamline sourcing and maintain quality across the assembly.
CNC milling is designed for high‑precision, high‑force cutting of metals and engineering plastics, achieving tighter tolerances. CNC routing is typically used for faster, larger‑format cutting of softer materials like wood, plastics, and composites, often with a focus on sheet goods. If your project involves thin‑wall aluminum or delicate plastics, our milling process provides better edge quality and dimensional control than routing, reducing the risk of distortion or tear‑out.
For internal corners, we typically apply a default fillet radius equal to the tool diameter used in that area. If your design has specific strength or aesthetic requirements, we strongly recommend specifying exact radii to ensure the part meets your exact expectations. Including fillet call‑outs in your drawing also helps us select the most efficient tooling strategy, which can lower machining time and cost.
In vertical milling, the spindle is oriented vertically; it's common and excellent for most 2.5D and 3D work. In horizontal milling, the spindle is horizontal, offering better chip evacuation and stability for deep pockets and heavy cutting, often used in high‑volume production. We deploy horizontal mills for parts requiring deep cavities or multiple sides machined in one setup, as it reduces handling and improves feature‑to‑feature accuracy.
Tool offset is a numerical value programmed into the CNC machine to account for the precise geometry and wear of each cutting tool. It ensures the tool follows the correct path, which is critical for maintaining part dimensions and achieving specified tolerances. Our operators regularly calibrate and update tool offsets throughout a production run, so part consistency is maintained even over long batches.
5‑axis machining allows the cutting tool to move linearly along X, Y, and Z axes while the workpiece or tool holder also rotates on two additional axes. This enables the machining of highly complex geometries in a single setup, reducing time and improving accuracy for parts like impellers, molds, and aerospace components. By minimizing re‑fixturing, 5‑axis milling also reduces cumulative tolerance stack‑up, giving you tighter overall part accuracy.
We machine a broad spectrum of materials, including a wide variety of metals (aluminum, steel, titanium, brass) and plastics (ABS, PC, PEEK, Nylon). Our team can advise on the best material for your application based on strength, weight, thermal properties, and cost requirements. We also keep a stock of common grades for rapid prototyping, so you can get parts faster without compromising material performance.
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