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We provide professional 3/4/5-axis CNC milling services for custom precision components, covering prototype development to medium & mass production. We fabricate structural brackets, equipment housings, manifold blocks and fixture plates for diverse industries.
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In-house post-processing capability -
Machining for aluminum, stainless steel, titanium and engineering plastics
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Strict dimensional control and premium surface finishing
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Seasoned manufacturing team with rich precision machining experience
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Flexible MOQ
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Prototype to Production Transition
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Multi-Axis Machining Capability
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ISO 9001:2015 Certified QMS
Our CNC Milling Processes
Material removal along workpiece edges, widely adopted for slot and groove machining.
Rotating end mills for vertical surface processing, ideal for pockets and contoured profiles.
Produce precise circular holes through rotary cutting with drill bits.
Typical CNC Milling Parts
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Precision Equipment Housings -
Structural Support Brackets -
Hydraulic Manifold Blocks -
Fixtures & Tooling Plates -
Valve Bodies & Valve Components -
Connector Bases -
Instrument Enclosures -
Custom Spacers & Mounts -
Gear Housing Casings -
Automation Mechanical Blocks
Have a similar part to manufacture?
Get Free Quote CNC Milling Materials
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. Metal .-
Aluminum (2A12, 5052, 6061, 7075)
2A12 is Al-Cu-Mg hard alloy with balanced mechanical properties. The full aluminum range is lightweight, easy to machine, and supports high-precision processing with reliable surface finishing.
Cost Efficiency:
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Stainless Steel (303, 304, 316L)
Great corrosion resistance and mechanical strength. 303 enables easy machining; 304 & 316L offer superior rust and acid resistance for long-service precision components.
Cost Efficiency:
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Brass (H59, H62)
Good ductility and cutting performance with excellent electric and thermal conductivity. Ideal for intricate contours and thread machining with premium surface quality.
Cost Efficiency:
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Copper (C1100)
Outstanding thermal & electrical conductivity and great plasticity. Stable physical characteristics for precision conductive and heat dissipation parts.
Cost Efficiency:
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Titanium Alloy (TC4)
High specific strength, low weight and remarkable corrosion resistance. Properties remain stable under extreme temperature conditions.
Cost Efficiency:
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Steel (45#, 4140)
High tensile strength and rigidity. Compatible with heat treatment to boost hardness and wear resistance for heavy-load mechanical components.
Cost Efficiency:
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. Plastic .-
PEEK
High-temperature resistance, strong mechanical strength and great wear resistance. Outstanding chemical stability and consistent dimensional accuracy.
Cost Efficiency:
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PEI
High rigidity, reliable thermal stability and low thermal expansion. Features excellent insulation and maintains precision after fine machining.
Cost Efficiency:
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POM
Low friction and self-lubricating characteristics. High hardness and dimensional stability for precision moving components.
Cost Efficiency:
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PA66 Nylon
Superior toughness, impact resistance and abrasion resistance. Good fatigue performance and stable machinability.
Cost Efficiency:
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PVC
Strong chemical resistance and reliable insulation. Solid anti-aging performance with cost advantages.
Cost Efficiency:
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PTFE
Ultra-low friction coefficient, wide temperature adaptability and complete chemical inertness, featuring great anti-sticking performance.
Cost Efficiency:
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Explore our full material list or contact our engineering team for recommendations.
Surface Finishing Options
We offer a variety of surface finishing options to enhance the appearance, durability, and performance of your CNC machined parts.
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Anodizing
Forms a protective oxide film on aluminum surfaces, improving wear resistance and corrosion resistance. Supports diverse color options for decorative requirements.
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Powder Coating
Delivers a thick, uniform protective coating with strong anti-corrosion capability. Features rich color selection and excellent surface coverage.
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Passivation
Removes surface contaminants of stainless steel and generates a passive film. Effectively strengthens rust resistance without altering part dimensions.
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Electropolishing
Achieves a smooth, bright metallic surface by electrochemical treatment. Improves corrosion resistance and reduces surface burrs.
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Sandblasting
Creates uniform matte texture on component surfaces. Eliminates machining tool marks and improves coating adhesion.
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Nickel Plating
Provides good hardness, wear resistance and corrosion protection. Ensures smooth surface and stable performance for metal components.
*Not sure which finish is right for your part? Explore our complete guide
Tolerance Guide
Precision lies at the core of CNC milling. We define tolerances based on component function, material characteristics and manufacturing feasibility, balancing reliable performance and cost control.
Reasonable tolerance design lowers machining expenses and boosts production efficiency:
- Avoid overly tight tolerances without functional requirements
- Adopt standard tolerances for non-critical features
- Simplify intricate geometries where possible
- Maintain uniform wall thickness for better structural stability
- Take material properties into consideration during processing
| Tolerance Type | Standard Tolerance (±mm) | Material | Cost Impact | Machining Feasibility |
| Distance Dimensions | ± 0.127 mm (± 0.005”) | All materials | Low | Standard 3-axis milling, compatible with most materials |
| Orientation and Form Dimensions | ± 0.127 mm (± 0.005”) | All materials | Medium | General CNC machining; higher precision required for large workpieces |
| Angularity | ± 0.5° | All materials | Medium | Realizable on 3-axis and 5-axis equipment |
| Edge Condition | Sharp edges broken & deburred | All metals & plastics | Low | Standard finishing service; sharp edges available upon drawing requirement |
Not sure about the right tolerance for your part?
Get Free Quote Our CNC Machining Process
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STEP 1
Design Review -
STEP 2
Programming -
STEP 3
CNC Machining -
STEP 4
Deburring -
STEP 5
Surface Finishing -
STEP 6
Quality Inspection
Guides to Optimize Your CNC Parts Design
Common CNC Machining Questions
Ready to Start Your Custom Parts Project?
Upload your drawings (STEP, STP, IGES, STL) or contact our team for a fast and confidential quotation.
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Engineered CNC Milling Solutions You Can Rely On
At Karry Precision, we deliver reliable custom CNC milling services built on professional engineering experience and advanced processing equipment. We manufacture precision components strictly according to your unique specifications. Focusing on diversified material options, controlled dimensional accuracy and efficient delivery cycles, we maintain consistent manufacturing standards to provide cost-effective machining solutions serving multiple industries.
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Proven manufacturing capacity for complex geometric components
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Professional 3/4/5-axis multi-axis machining capability
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Precision processing with controllable tight tolerances
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Supports extensive selection of metals and engineering plastics
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Efficient lead time covering prototype sampling and batch production
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Diversified surface finishing solutions to fit different application demands
