Aluminum Casting Manufacturer
from China
Quality-managed foundry in Ningbo. Gravity casting, low-pressure casting, die casting, machining coordination, and PPAP or FAI documentation planning for automotive and industrial RFQs.
Quick answer for buyers
Bohua Cast (Ningbo Bohua Mechanical Parts Co., Ltd.) is an aluminum casting manufacturer in Ningbo, China. The company supports OEM buyers with gravity casting, low-pressure casting, die casting and sand casting, plus machining coordination, T5/T6 heat-treatment planning, dimensional inspection, and PPAP or FAI documentation where required.
Buyer facts
| Legal entity | Ningbo Bohua Mechanical Parts Co., Ltd. |
|---|---|
| Brand | Bohua Cast / Bohua Casting |
| Founded | 2009 in Ningbo, Zhejiang, China |
| Quality system | IATF 16949:2016 (NQA, valid through Nov 2027); ISO 9001 scope integrated |
| Processes | Gravity casting, low-pressure casting, high-pressure die casting, sand casting |
| Common alloys | A356, ZL114, ZL101, ADC12 |
| RFQ inputs | 2D + 3D drawings, alloy or mechanical requirement, annual volume, machining scope, surface finish, inspection requirements |
Why source aluminum castings from China
The economics are well understood: lower labor cost, lower overhead, and the infrastructure of a mature manufacturing cluster. But the case for Chinese aluminum foundries goes beyond unit price.
Major casting hubs like Ningbo have dense supplier ecosystems — toolmakers, heat treaters, precision machinists, and surface finishers clustered nearby. Chinese foundries span the full aluminum casting process spectrum, and IATF 16949 certification is widespread among suppliers targeting automotive and tier-1 customers.
Manufacturing depth
Dense supplier ecosystems in Ningbo, Suzhou, and Dongguan support toolmaking, heat treatment, machining, and surface-finishing coordination.
Process range
Sand casting, gravity die, LPDC, and HPDC with alloy capability from A356-T6 structural grades through A380.
Quality infrastructure
CMM, OES spectrometers, hydrogen degassing, and in-house heat treatment are standard in qualified facilities.
Port access
Ningbo-Zhoushan port gives export-oriented suppliers established shipping routes to North America and Europe.
How to qualify a Chinese casting supplier
1. Quality system verification
Confirm IATF 16949 certificate is current and scope covers casting. Review internal audit findings and corrective action closure rates.
2. Process capability and equipment
In-house OES spectrometer, rotary degassing, CMM with traceable calibration, and heat treatment furnace with TUS records.
3. PPAP track record
Request a completed PPAP package from a current automotive program. Review FAIR/ISIR completeness and CMM report format.
4. Sample parts and FAI
Review T1 samples against drawing: dimensional FAIR, chemistry MTC, visual inspection, and tensile/hardness from heat treat batch.
Casting processes available
| Process | Best for | Tolerance | T6 |
|---|---|---|---|
| Gravity die casting | Brackets, housings, arms (1K–50K/yr) | CT6–CT8 | Yes |
| LPDC | Complex cores, wheels, thick sections | CT6–CT8 | Yes |
| Sand casting | Prototypes, large parts, <500/yr | CT10–CT12 | Yes |
| HPDC | High-volume thin-wall, non-structural | CT5–CT7 | No |
For automotive structural components — suspension links, brackets, knuckles, motor housings with fatigue requirements — gravity die or LPDC is the appropriate process.
CNC machining and the combined supply chain
With a combined casting-and-machining supplier, one supplier owns the complete PPAP submission from raw casting through finished dimensions. Casting datums are set with machining in mind, non-conformances have a single point of accountability, and CMM inspection covers both as-cast and machined features in one report.
For automotive programs with tight PPAP requirements, aligning casting datums, machining datums, inspection records, and sample approval documents early reduces program-management risk.
Bohua Casting at a glance
Why Bohua Cast for aluminum castings from China
IATF 16949 certified
Automotive quality system with CSR flow-down, documented PPAP process, and internal audit program.
Gravity die + LPDC
Both T6-capable processes under one roof. Process recommendation driven by your geometry and volume.
In-house CNC machining
Casting and precision machining as a single supply chain. One PPAP package, one point of accountability.
PPAP documentation planning
CMM, material records, process evidence, and PPAP level should be matched to the buyer's project requirement.
Drawing-based DFM review
Draft angles, wall thickness, core feasibility, stock allowance, and alloy selection can be reviewed from PDF plus STEP files.
Ningbo port access
Proximity to Ningbo-Zhoushan port supports established export routing to North America and Europe.
Frequently asked questions
Is it reliable to source aluminum castings from China?
Yes, when the supplier is properly qualified. Buyers should verify the supplier's current certificate, process scope, inspection equipment, sample discipline, PPAP or FAI experience, and corrective-action process before approval. Casting hubs like Ningbo can support automotive-style sourcing when the supplier evidence matches the buyer's drawing and quality requirements.
What certifications should a Chinese aluminum foundry have?
IATF 16949 is the standard for automotive supply chain suppliers. ISO 9001 alone may be insufficient for automotive supplier approval programs. Verify the certificate is current and issued by an IATF-recognized certification body, and that the scope covers the specific casting processes you are sourcing.
What is PPAP and does a Chinese foundry support it?
PPAP (Production Part Approval Process) is the automotive industry's part approval standard. Level 3 is the most common requirement for new parts, covering 18 elements including dimensional reports, material certs, process flow, control plan, PFMEA, and FAI/ISIR. Qualified Chinese foundries with IATF 16949 certification routinely support Level 3 PPAP.
What aluminum casting processes does Bohua Cast offer?
Bohua reviews gravity die casting (permanent mold), low-pressure casting, high-pressure die casting, and sand casting routes from the drawing, alloy, wall thickness, annual volume, and inspection scope. Machining, heat treatment, and documentation requirements should be confirmed during RFQ review.
What is the lead time for a new program?
New-program timing depends on drawing maturity, tool complexity, sample iterations, machining scope, heat treatment, inspection records, PPAP or FAI requirements, and current production loading. A useful RFQ should separate tooling, sample approval, production release, and export timing instead of relying on one generic lead-time number.
Start a Drawing-Based DFM Review
Send your 3D model (STEP or IGES), drawing, annual volume, alloy requirement, machining scope, and inspection notes so Bohua can review process fit and RFQ assumptions.
Request a Quote