Aluminum Gravity Casting Built for Global OEMs
Bohua Casting operates under an NQA-certified IATF 16949 quality management system. ISO 9001 requirements are incorporated within the IATF 16949 system; Bohua does not currently hold a separate ISO 9001 certificate. ISO 14001 certification is under application. A356 / ZL114 gravity casting is supported with CNC machining, project-defined pressure-tightness testing, and drawing-based RFQ review.
Application coverage for regulated casting RFQs
Program-fit examples can be discussed during qualified RFQ review.
Our Products
Real Castings.
Real Applications.
From small brackets to gravity-cast parts evaluated up to approximately 2 m — supplied for automotive, industrial, and energy OEM programs. Explore parts by application below.
Casting Solutions
Find the Right Aluminum Casting for Your Project
Explore pump housings, valve bodies, machined enclosures, and A356 castings. Review the relevant process and inspection options, then share your drawings and requirements with our team.
Aluminum Pump Housings
Review pump housings with machined sealing faces, bores, and pressure-test requirements defined by your drawing.
View details →Hydraulic & Flow-Control Valve Bodies
Specify ports, threads, sealing surfaces, and inspection requirements for hydraulic and flow-control components.
View details →A356 & A356-T6 Aluminum Castings
Compare casting, heat-treatment, and machining options for A356 housings and structural components.
View details →Custom A356 Parts for OEM Programs
Discuss tooling, annual demand, drawing revisions, and documentation for a new or second-source casting program.
View details →Automotive Sand Casting
Explore sand casting for prototypes, service parts, lower-volume programs, and components with complex internal passages.
View details →Leak-Tight Aluminum Casting
Define the test method, pressure, and acceptance criteria for castings with sealing surfaces and internal fluid passages.
View details →Machined Gearbox & Reducer Housings
Review bearing seats, machining datums, heat-treatment requirements, and inspection for drive-system housings.
View details →EV Motor Housings & End Covers
Explore aluminum motor housings, end bells, and end covers with drawing-defined casting and CNC machining requirements.
View details →Quality Documents for Supplier Review
Review inspection capabilities and discuss material certificates, dimensional reports, and project-specific quality records.
View details →Case Studies
Proof that our aluminum casting work holds up in real sourcing environments.
See how Bohua supports second-source qualification, DFM improvement, PPAP documentation, and stable production ramp-up.
How We Work
Four Processes.
One Expert Team.
We select the right process for your geometry, volume, and mechanical requirements.
Gravity Casting
A356 · ZL114 — up to approximately 2 m
Permanent mold gravity casting for structural and safety-critical parts. T6 heat treatable, low porosity, superior mechanical properties.
Low-Pressure Casting
Controlled filling · Project-defined pressure-tightness testing
Counter-gravity fill for complex powertrain housings and components where controlled filling, machining stock, and leak-test planning matter.
Die Casting
ADC12 · High volume
High-pressure die casting for thin-wall, higher-volume components, with process fit confirmed from geometry, alloy, and tooling requirements.
Sand Casting
Prototypes · Size reviewed by drawing
Flexible expendable molds for prototyping, low-volume runs, and larger components evaluated against geometry and handling requirements.
Alloys
Right Alloy.
Right Properties.
Gravity / Low-Pressure
Structural, automotive, safety-critical
Gravity / Low-Pressure
High-load industrial, GB standard
Die Casting
High-volume thin-wall, complex geometry
The Facility
13,420 m² of Modern
Casting Infrastructure
Gravity casting, CNC machining, and inspection resources including Hexagon Global S and NANO Metrology CMMs, Oxford OES, 3D scanning, X-ray, tensile testing, and a project-defined pressure-tightness testing workshop in Fenghua, Ningbo.
Engineering Insights
Technical Guides
Aluminum Pump Housing Manufacturer & Supplier Guide
Pressure-tight pump housing sourcing guide for OEM buyers covering RFQ inputs, leak-risk control, machining scope, and China export readiness.
Read moreSourcingAluminum Valve Body Manufacturer & Supplier Guide
How buyers compare valve body suppliers on port machining, sealing surfaces, pressure integrity, and export-ready OEM execution.
Read moreSourcingAluminum Gearbox Housing Manufacturer & Supplier Guide
Buyer-focused gearbox housing guide covering bearing seats, datums, tooling review, machining strategy, and reducer RFQ readiness.
Read moreSourcingEV Motor End Cover & End Bell Manufacturer Guide
OEM sourcing guide for EV motor end covers and end bells with sealing, machining, alloy review, and export-ready supplier checkpoints.
Read moreSourcingHow to Choose a Pressure-Tight Aluminum Casting Supplier
A practical guide for pump housing, valve body, and leak-sensitive casting RFQs.
Read moreSourcingAluminum Impeller Manufacturer & Supplier Guide
Buyer-focused RFQ guide for aluminum impellers covering vane fill, machining allowance, balancing strategy, and export-ready sourcing from China.
Read moreTell Us What You Need.
Submit the project details here, then email drawings to linda@ningbobohua.com for engineering review and RFQ routing.