Supplier of Stainless Steel Hydraulic Fittings for Auto Engine

Secondary Operations & Finishing

A. Value-Added Services

B. Surface Finishes

Quality Assurance & Inspection

A. Inspection Equipment

Multi-Sensor CMMs: 3D measurement with 0.001mm accuracy

Optical Comparators: Profile projection with 20× to 100× magnification

Surface Roughness Testers: Portable and benchtop Ra/Rz measurement

Hardness Testers: Rockwell, Brinell, Vickers, and micro-hardness

Thread Gauges: Complete sets to ISO/ANSI standards

Digital Calipers/Micrometers: 0.001mm resolution, calibrated regularly

Roundness Testers: Concentricity and cylindricity measurement

Force Measurement: Torque testing, spring constant verification

B. Quality Certifications & Processes

ISO 9001:2015 certified quality management system

First Article Inspection (FAIR): AS9102/PPAP documentation available

Statistical Process Control (SPC): Real-time monitoring of critical dimensions

Material Traceability: Mill test certificates, heat/lot number tracking

Calibration Program: All inspection equipment calibrated to NIST standards

Document Control: Revision-controlled drawings and specifications

Ordering Process & Lead Times

A. Standard Process Flow

RFQ Submission: Drawings (PDF/DWG), 3D models (STEP/IGES), specifications

Engineering Review: DFM analysis, material recommendation, process planning (24-48 hour response)

Quotation: Detailed pricing including tooling, setup, and piece price

Prototype Phase (if required): Sample production with inspection report

Production Approval: Process validation, inspection plan approval

Manufacturing: Scheduled production with milestone updates

Final Inspection: Complete FAIR or inspection report

Delivery: Packaged per requirements, shipping with tracking

B. Lead Time Guidelines

Customization & Special Capabilities

A. Complex Geometries

Eccentric Features: Off-center turning, cam profiles

Micro-Machining: Parts as small as Ø0.5mm with features to 0.05mm

Thin-Wall Components: Walls as thin as 0.1mm with proper support

Deep Hole Drilling: Up to 20× diameter depth with gun drilling equipment

Contoured Surfaces: Programmable radius forms, complex profiles

B. Special Processes

Hard Turning: Machining of hardened materials (45-65 HRC)

Polygon Turning: Non-circular forms, hex shapes, special profiles

Burnishing: Diamond or roller burnishing for superior surface finish

Knurling: Straight, diagonal, and diamond patterns

Part Marking: Laser engraving, dot peen marking, serialization

Packaging & Logistics

A. Packaging Options

Standard: Poly bags with labeled partitions in shipping cartons

ESD-Safe: Anti-static packaging for electronic components

Cleanroom: Double-bagged, particulate-controlled for medical/aerospace

VCI Protection: Volatile corrosion inhibitor packaging for ferrous metals

Custom: Foam inserts, vacuum sealing, desiccant packs as required

B. Shipping & Logistics

Export Documentation: Commercial invoice, packing list, certificate of origin

International Compliance: REACH, RoHS, conflict mineral documentation

Global Shipping: Relationships with major carriers (DHL, FedEx, UPS)

Inventory Management: Consignment stock, kanban systems, bonded warehousing

Frequently Asked Questions

Q: What is the difference between Swiss-type and conventional CNC turning?
A: Swiss-type lathes guide material through a bushing near the cutting tools, providing exceptional support for long, slender parts and enabling complex secondary operations in a single setup. Conventional lathes are typically more cost-effective for shorter parts with simpler geometries.

Q: Can you hold both metric and imperial tolerances?
A: Yes, our equipment and inspection tools are capable of working in both measurement systems. We regularly produce parts to ISO (metric) and ASME (imperial) standards.

Q: Do you provide material certifications?
A: Yes, we provide full traceability with mill test certificates for all metal materials. Additional testing (chemical analysis, mechanical properties) is available upon request.

Q: What is your minimum order quantity?
A: We accommodate orders from single prototypes to high-volume production. For standard materials and processes, our minimum production order is typically 50 pieces, but we evaluate all requests individually.

Q: How do you handle design changes during production?
A: All design changes follow a formal Engineering Change Order (ECO) process with customer approval. We maintain revision control of all drawings and specifications.

Q: Can you reverse engineer parts from samples?
A: Yes, we offer reverse engineering services using CMM measurement and 3D scanning to create manufacturing drawings from physical samples.

Contact for Custom Quotations

For project-specific pricing and technical consultation, please provide

Complete drawings or 3D models with critical dimensions called out

Material specifications or performance requirements

Quantity requirements (prototype, annual volumes)

Applicable industry standards or certifications

Target timeline and delivery requirements

Engineering Support: Technical review and preliminary quotations within 24 hours for complete submissions.