What is CNC Machining?
⇒CNC machining, or Computer Numerical Control machining, is a highly versatile manufacturing process that utilizes automated, high-speed cutting tools to precisely remove material from a workpiece—typically metal or plastic—until the desired shape and dimensions are achieved.
⇒Common types of CNC equipment include 3-axis, 4-axis, and 5-axis milling machines, lathes, and routers. These machines operate in various ways: some move the tool while the workpiece remains stationary, others rotate and move the workpiece while the tool stays fixed, and some models move both the tool and workpiece simultaneously.
⇒The process begins when machinists receive a CAD (computer-aided design) model, often referred to as a 3D file. Using this model, they program the tool paths required to produce the part. An experienced machinist optimizes these paths to improve accuracy, maintain tight tolerances, and reduce overall CNC machining costs.
⇒CNC machines are capable of cutting a wide range of materials, including metal alloys, plastics, wood, stone, ceramics, and more. This flexibility makes CNC machining essential for producing custom parts across industries such as automotive, robotics, medical devices, aerospace, electronics, and industrial equipment.
⇒At 3ERP, we offer professional CNC machining services and provide custom quotes for a variety of materials—from standard options like aluminum, steel, stainless steel, ABS, and acetal, to advanced metals such as titanium and Inconel, as well as high-performance engineered plastics including Teflon, PPS, PEI, and PEEK.
CNC Machining Tolerances & Capabilities
At Nylon plastic, we pride ourselves on delivering precision-engineered parts that meet the most demanding specifications. Our advanced CNC equipment and rigorous quality control ensure that every component, from prototype to high-volume production, is built to perfection.
Below is a detailed overview of our standard machining tolerances and key capabilities:
| Feature | Especificación |
|---|---|
| Standard Tolerances | Metals: ISO 2768-m Plastics: ISO 2768-c |
| Precision Tolerances | We can hold strict tolerances as specified on your drawings, including GD&T and tight tolerances within ±0.001 inches. |
| Minimum Wall Thickness | 0.5 mm |
| Minimum End Mill Size | 0.5 mm |
| Minimum Drill Size | 1.0 mm |
| Tamaño máximo de la pieza | Milling: 4000 × 1500 × 600 mm Turning: Ø 200 × 500 mm |
| Minimum Part Size | Milling: 5 × 5 × 5 mm Turning: Ø 2 × 2 mm |
| Production Volume | Creación de prototipos: 1 – 100 pcs Low-Volume: 101 – 10,000 pcs High-Volume: 10,001+ pcs |
| Standard Lead Time | 5 business days for most projects. Expedited delivery for simple parts is available in as fast as 1 day. |
Our Plastic Injection Molding Services
High-Quality Injection Molding with Competitive Pricing & Fast Turnaround
CNC Turning Services
Gear Manufacturing Services
High-Volume CNC Production
CNC Machining Services FAQ
Our comprehensive CNC machining capabilities include:
Fresado en 3 ejes: Precision machining for simple to moderately complex parts
Fresado en 5 ejes: Complex geometries and simultaneous multi-surface machining
CNC Turning: Precision lathe work for rotational parts
Multi-Axis Turn-Mill: Combined turning and milling operations
Swiss-Type Machining: High-precision, high-volume small parts production
Mill-Turn Centers: Complete part processing in single setup
We work with extensive material options:
Aleaciones de aluminio: 6061, 7075, 5052 for lightweight applications
Stainless Steels: 303, 304, 316, 17-4PH for corrosion resistance
Tool Steels: D2, A2, O1 for molds and tooling
Exotic Metals: Titanium, Inconel, Monel for extreme environments
Plásticos: Delrin, PEEK, Nylon, PTFE for non-metallic applications
Copper & Brass: For electrical and decorative components
We maintain precision tolerances:
Standard Machining: ±0.005 inches (±0.127mm)
Mecanizado de precisión: ±0.001 inches (±0.025mm)
High-Precision: ±0.0005 inches (±0.012mm) achievable
Geometric Tolerancing: GD&T per ASME Y14.5 standards
Acabados superficiales: From 8 Ra to 125 Ra depending on requirements
Our machine envelope capabilities:
3-Axis Mills: 40" x 20" x 20" (1000x500x500mm)
5-Axis Mills: 30" x 20" x 20" (750x500x500mm)
CNC Lathes: Up to 12" diameter x 40" length
Swiss Machines: Up to 1.5" diameter x 12" length
Large Format: Custom solutions for oversized components
We support all major CAD formats:
3D CAD: STEP, IGES, SLDPRT, PRT, X_T
2D Drawings: PDF, DWG, DXF with complete specifications
CAM Files: Native CAM files from major software packages
Point Clouds: For reverse engineering applications
Our manufacturing timelines include:
Prototype Parts: 3-5 días laborables
Production Quantities: 1-2 weeks depending on volume
Complex Parts: 2-3 weeks with multiple operations
Emergency Services: 24-48 hour rush service available
Large Volumes: Custom scheduling for ongoing production
Our comprehensive quality assurance:
First Article Inspection: Complete dimensional verification
Inspección durante el proceso: Real-time quality monitoring
CMM Measurement: Precision coordinate measuring machines
Surface Roughness Testing: Profilometers for finish verification
Material Certification: Full traceability and compliance
ISO 9001: Certified quality management system
Our expertise spans multiple sectors:
Aeroespacial: Structural components, brackets, fittings
Médico: Surgical instruments, implants, device components
Automoción: Engine components, transmission parts, prototypes
Defense: Weapon systems, tactical gear, communication equipment
Electrónica: Enclosures, heat sinks, connector components
Industrial: Machine components, tooling, fixtures
Complete post-machining services available:
Deburring: Manual and automated edge breaking
Surface Treatments: Anodizing, plating, painting, powder coating
Heat Treatment: Annealing, hardening, stress relieving
Assembly: Press fits, welding, adhesive bonding
Marking: Laser engraving, etching, serialization
Embalaje: Custom packaging for protection and presentation
Advanced machining strategies:
5 ejes simultáneos: Complex contours and undercuts
High-Speed Machining: Improved surface finishes and accuracy
Custom Tooling: Special cutters for unique features
Probing Systems: In-machine verification and adjustment
Temperature Control: Environmental controls for thermal stability
Our DFM expertise includes:
Feature Optimization: Designing for standard tooling
Tolerance Analysis: Right-sizing tolerances for function
Selección de materiales: Choosing optimal materials for application
Setup Reduction: Designing for minimal operations
Cost Optimization: Balancing performance and manufacturing cost
throughout the process
Transparent cost structure:
Setup Charges: Machine programming and preparation
Hourly Rates: Based on machine time and complexity
Material Costs: Raw material plus processing
Secondary Operations: Additional services priced separately
Volume Discounts: Tiered pricing for production quantities
Tooling Costs: Special tooling if required
Creación de prototipos: 1-50 piezas con entrega rápida
Producción de puentes: 50-500 parts for testing and validation
Volúmenes de producción: 500+ parts with optimized processes
Just-in-Time: Scheduled deliveries for ongoing needs
Low-Volume High-Mix: Efficient small batch production
Principales ventajas
Reducción de costes: Consiga ahorros gracias al uso optimizado de materiales y al diseño inteligente del grosor de las paredes.
Mejora de la fabricabilidad: Valide la viabilidad de la producción con evaluaciones de ángulos de desmoldeo y líneas de separación.
Menos defectos: Reciba alertas tempranas de posibles problemas, como marcas de hundimiento y líneas de soldadura.
Confianza basada en datos: Tome decisiones informadas con un análisis detallado del flujo del molde sobre llenado, enfriamiento y alabeo.
Principales ventajas
Defina sus necesidades en función de los requisitos mecánicos, térmicos y químicos.
Navegue por la conformidad con orientación experta sobre RoHS, REACH y otras normas.
Equilibre coste y rendimiento para identificar la solución más económica.
Verifique su elección con asistencia profesional para ensayos y certificación de materiales.
Puedes esperar:
Eficacia de producción optimizada: Diseños de moldes que acortan los tiempos de ciclo y maximizan la producción.
Calidad de pieza garantizada: Estabilidad dimensional garantizada y excelencia estética para cada pieza.
Fiabilidad a largo plazo y facilidad de mantenimiento: Diseños que minimizan el tiempo de inactividad y reducen los costes de funcionamiento durante toda la vida útil.
Una solución a medida: Un molde diseñado con precisión para sus requisitos específicos de producto y objetivos de volumen.
Sus principales ventajas:
Aumento de la eficacia y el rendimiento gracias a la racionalización de los tiempos de ciclo.
Mayor consistencia de la calidad con una menor variación entre piezas.
Reducción significativa de los costes al minimizar la chatarra y el derroche de energía.
Una línea de producción más robusta y con mayor estabilidad operativa general.
Proceso en 3 pasos
Cómo trabajar？
Desde el momento en que se confirma su pedido de moldes de inyección, seguimos un procedimiento estandarizado para garantizar la transparencia y unas transiciones fluidas en cada paso. Este proceso mantiene tanto a nuestro equipo como a nuestros clientes totalmente informados sobre el progreso, garantizando que cada fase se ejecuta de forma eficiente. Así es como comenzamos y completamos su proyecto de molde de inyección:
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