Custom Brass Precision Mold Parts | High-Tolerance CNC Turned Components for Electrical & Fluid Systems

Precision in Every Micron: Specialized Brass Component Solutions

Combining Superior Conductivity with Unmatched Dimensional Stability

At Senlan Precision, we recognize that custom brass components are more than just "easy-to-machine" parts—they are the critical conductors and structural pivots of your precision systems. From high-end mold inserts to complex electrical interface components, we leverage advanced Swiss-turning and CNC milling technology to deliver brass parts that meet the most stringent Western engineering standards.

Our focus is on material purity and geometric excellence, ensuring that every batch delivers 100% repeatability for high-speed assembly lines.

Overcoming the Technical Barriers of Brass Machining

1. Solving the Stress Deformation Challenge

• The Issue: Brass is sensitive to thermal stress and clamping pressure, often leading to warping in thin-walled designs.

• Our Solution: We utilize specialized low-pressure fixturing and stress-relief aging processes. By controlling the internal stress of the material during CNC turning, we guarantee that high-tolerance features (up to ±0.005mm) remain stable from the production floor to your assembly line.

2. Lead-Free & RoHS Compliant Material Control

• The Issue: Non-compliant brass alloys risk legal and environmental sanctions in European and US markets.

• Our Solution: We maintain strict material segregation. Our inventory includes certified C36000, C46400, and Lead-free Eco-Brass. Every shipment is accompanied by a material certificate verifying chemical composition and environmental compliance.

3. Burr-Free Micro Machining & Surface Integrity

• The Issue: Micro-burrs in internal threads and cross-holes can cause catastrophic failures in fluid or electrical systems.

• Our Solution: Utilizing 5-axis Swiss-type turning centers, we execute secondary deburring in-machine. Final parts undergo electrolytic polishing or passivation to ensure a tarnish-free, mirror-like finish (Ra 0.4) that facilitates flawless signal transmission or fluid flow.

Technical Specifications & Machining Capabilities

Application-Specific Expertise

Our brass precision components are the industry standard for:

• Electrical & Electronics: High-current terminals, sensor housings, and connector pins.

• Fluid Power & HVAC: Precision valve seats, manifold inserts, and high-pressure nozzle components.

• Precision Mold Inserts: Fast-cooling core inserts and conductive bushings for injection molds.

• Luxury Goods & Lock Systems: High-security lock cylinders and aesthetic hardware with tight tolerances.

Why Strategic Buyers Choose Senlan Precision

1. Transparent Material Traceability: We provide genuine mill certificates and internal spectral analysis for every batch of brass.

2. Micron-Level Repeatability: Our ISO 9001:2015 certified process ensures that part #1 is identical to part #10,000.

3. Cleanroom-Ready Packaging: Parts undergo multi-stage ultrasonic cleaning and are vacuum-sealed to prevent oxidation during sea or air transit.

4. Professional DFM Feedback: We consult on material temper (Half-hard vs Full-hard) and geometry to reduce your manufacturing costs without sacrificing quality.

5. Quality Documentation: Every delivery includes a comprehensive FAI (First Article Inspection) or CPK report for critical dimensions.

FAQ – Proactive Quality Assurance

Q: How do you prevent oxidation of brass parts during long-distance shipping?

A: We use VCI (Volatile Corrosion Inhibitor) packaging and moisture-absorbent desiccant, ensuring that parts remain bright and untarnished upon arrival at your facility.

Q: Can you achieve tight tolerances on lead-free brass?

A: Yes. Lead-free brass is harder on tools, but we utilize specialized diamond-coated tooling and adjusted spindle speeds to maintain the same ±0.005mm tolerance as free-cutting brass.

Q: Do you offer assembly services for turned brass components?

A: We provide value-added services, including O-ring installation, press-fitting, and sub-assembly, delivering a "Ready-to-Use" component to your production line.

Request a Technical Quote & Material Consultation

Ensure the reliability of your electrical and fluid systems with certified brass precision. Submit your STEP/DWG drawings today for a 24-hour manufacturing review and competitive quote.