High Precision Custom CNC Machined Parts

FlexiTurn provides precision CNC machining services for custom brass double‑ferrule compression fittings — high‑reliability fluid components manufactured to tight tolerances for fluid power and instrumentation systems.

Precision Component Manufacturing Processes

• Fitting Body & Nut Turning: External and internal threading, sealing cone profiling, bore sizing, and chamfering for each component are completed in a single CNC turning setup. This eliminates cumulative runout error from re-chucking and maintains strict bore-to-thread concentricity.
• 3-Axis Hex Flat Milling: Precision 3-axis CNC milling produces hexagonal wrenching flats with controlled across-flats dimensional tolerances, ensuring uniform wrench engagement and predictable tightening torque during field installation.
• Precision Ferrule Machining: Front and back ferrules are machined to micrometer-level tolerances to deliver controlled axial displacement, uniform tube retention, and consistent sealing deformation under applied torque.
• Critical Surface Finishing: Optional precision form grinding of sealing cone surfaces achieves a surface finish of Ra < 0.4 μm, minimizing micro-leakage risk in high-pressure fluid circuits.

Technical Specifications

Machined Components: Fitting Body, Compression Nut, Front Ferrule, Back Ferrule Supported Brass Alloys C36000 Free-Cutting Brass, C37700 Forging Brass, DZR Brass (EN 10204 3.1 Certified)

Dimensional Tolerances: ±0.005 mm on critical sealing cone features; ±0.01 mm on general turned features

Thread Standards: NPT, BSPT, BSPP, Metric, UNF (100% Verified with Calibrated Plug & Ring Gauges)

Geometric Tolerances:  Concentricity ≤ 0.005 mm; Sealing Cone Angle Tolerance ≤ ±0.25°

Surface Finish: Ra 0.8–1.6 μm (Standard As-Turned); Ra < 0.4 μm (Precision Ground Sealing Faces, Optional)

Quality Assurance & Pressure Integrity Verification

Every batch is manufactured under FlexiTurn’s ISO 9001:2015-aligned quality management system with full technical verification:

• Material Traceability: 100% raw material batch tracking. Certified EN 10204 3.1 material test reports supplied upon request for each production batch.
• Critical Feature Inspection: 100% inspection of thread integrity and critical sealing dimensions using optical comparators and calibrated Go/No-Go gauges. General dimensional features are inspected per approved AQL sampling plans.
• Leakage & Pressure Testing: Optional pneumatic bubble testing and hydrostatic pressure validation available on request for critical fluid routing assemblies, with parameters tailored to application requirements.

Why Choose FlexiTurn

• Specialized Fluid Component Expertise: Calibrated cutting speeds, feeds, and specialized tool geometries prevent burr formation inside internal fluid passages, eliminating downstream contamination risks and reducing post-processing requirements.
• Single-Setup Concentricity Control: Machining all critical sealing cones and thread centerlines in a single clamping cycle per part eliminates cumulative fixturing error and ensures uniform, leak-tight ferrule seating.
• 100% In-House Production: All operations—incoming material inspection, turning, hex milling, deburring, and final CMM dimensional verification—are performed on-site with zero subcontracting.
• Complimentary 24-Hour DFM Review: Engineering evaluations analyze part geometry (ferrule retention profiles, thread relief pockets, sealing taper angles) to optimize manufacturing feasibility, reduce per-unit cost, and shorten lead times.
• Strict Confidentiality Protocols: CAD drawings and project specifications are managed under strict internal information security policies, with NDAs executed prior to data transfer.

Partner with FlexiTurn

Submit your 2D/3D CAD drawings (STEP/IGES/PDF) with thread specifications, tolerance callouts, and batch quantities. FlexiTurn delivers technical DFM feedback and direct-factory quotations within 24 hours.

Q1. What types of machining services do you offer?

We provide comprehensive CNC turning and milling services. FlexiTurn machines are equipped with 8-station programmable turrets and support both turning and 5-axis milling operations, making them suitable for everything from simple cylindrical parts to complex multi-axis components.

Q2. What materials can you work with?

We machine a wide range of materials including carbon steel, stainless steel, aluminum, plastics, and other engineering-grade materials. If you have a specific material in mind, just send us your requirements and we'll confirm feasibility.

Q3. What is your typical lead time?

Lead times vary depending on part complexity, quantity, and material availability. For prototypes and small-batch runs, we typically deliver within 5–10 business days. For high-volume production, we'll provide a customized schedule after reviewing your drawings. Contact us with your project details for an accurate timeline.

Q4. How do you price your services?

Pricing is based on several factors: material cost, machining time, tooling requirements, setup complexity, and order quantity. We offer competitive rates for both low-volume prototypes and high-volume production runs. Request a quote with your CAD files or drawings and we'll get back to you within 24 hours.

Q5. What quality control measures do you have in place?

We follow strict quality control procedures throughout the machining process. Our CNC systems support programmable precision down to 1 μm, ensuring high accuracy and repeatability. Every batch undergoes dimensional inspection before shipping, and we can provide inspection reports upon request.