Trusted Custom Centrifugal Casting ManufacturerEngineered Tubes · Rings · Sleeves · Special Shapes from Your Drawing

Minimum: a 2D drawing (PDF, DXF, STEP) showing dimensions, tolerances, material specification, and surface finish requirements. Helpful additions: 3D CAD file, sample part for reference, target annual volume, target unit price, project timeline, and end-application service conditions. We provide DFM feedback within 48 hours of receiving the drawing with a signed NDA.

Yes. Mutual NDA is standard practice before any technical exchange. We have a standard NDA template, or we can review and sign your company's NDA template. Engineering files are stored in segregated project folders accessible only to assigned program engineers — typically program manager, design engineer, mold tooling engineer, and QC engineer. Files are not stored on shared servers or shop floor systems.

No fixed piece-count MOQ. The economic minimum is driven by mold tooling cost amortization. Standard custom tooling costs $3,000-15,000 depending on complexity. Single-cavity centrifugal tools become economical at 15-25 pieces of the same geometry. Multi-cavity production tools become economical at 100+ pieces. We can quote one-off prototype runs with shared tooling cost or pay-for-tooling models.

Standard custom mold tooling lead time is 15-25 days from approved drawing to first cast sample. Simple geometries with existing tooling library: 8-15 days. Complex multi-stepped or asymmetric geometries: 25-35 days. Mold tooling fabricated in-house on CNC machines — no third-party tooling shop delays. Sample castings produced within 5-10 days after tooling completion.

Standard QMS is ISO 9001:2015. Additional certification paths available: IATF 16949 (automotive), AS9100 (aerospace and defense), PED 2014/68/EU (EU pressure equipment), NACE MR0175 (sour service), and customer-specific QMS (Tier 1 OEM-specific quality requirements). Certification path selected during DFM phase based on end-application and buyer customer requirements.

Yes. PPAP (Production Part Approval Process) Level 1-5 submission supported per AIAG standard. PPAP package includes design records, engineering change documents, customer engineering approval, DFMEA, process flow diagrams, PFMEA, control plan, MSA studies, dimensional results, material/performance test results, initial process studies (Cpk), qualified laboratory documentation, AAR, sample production parts, and PSW. PPAP submission adds 2-4 weeks to program timeline.

As-cast OD tolerance: ±0.5 mm typical. After machining: ±0.05 mm achievable on critical dimensions. Wall thickness tolerance: ±0.3 mm as-cast, ±0.1 mm after machining. Surface finish Ra 1.6-3.2 μm after machining; Ra 0.4-0.8 μm achievable with finish grinding. Tighter tolerances available but add cost — typically only specified for bearing surfaces and mating interfaces. Standard tolerance chart shipped with quote.

Both. We can supply rough centrifugal castings for buyer downstream machining (lower cost), or fully finish-machined parts ready for assembly (higher cost, faster integration). In-house CNC machining capability: lathes, machining centers, grinding, broaching. Heat treatment, surface coating, and assembly value-add available for full-service programs. Most programs select rough + finish hybrid based on volume economics.

Yes. Supplier transfers are common — typically driven by cost reduction, capacity constraints at existing supplier, or quality issues. Standard transfer process: NDA, drawing review, existing supplier sample review, DFM feedback, tooling cost negotiation, sample production, FAI approval, dual-source production, then full transfer. Total transfer time typically 90-180 days from NDA to single-source production. We have completed 40+ supplier transfer programs.

Yes. Active custom centrifugal casting shipments to OEMs and Tier 1 suppliers in 40+ countries — US, Germany, France, Italy, UK, Russia, South Korea, Japan, India, Brazil, Mexico, Saudi Arabia, UAE, Thailand, Indonesia. FOB Qingdao standard quote; CIF, DDP, and project-specific freight handled through partnered forwarders. Container consolidation available for multi-program customers.