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Aluminum Die Casting.

Cast housings, structural parts and precision interfaces—supported by tooling, machining and project-defined inspection across our strategic manufacturing network.

Cylindrical housing with machined bore and mounting feet
Cylindrical housing with machined bore and mounting feet.

Define the Interfaces. Agree the Acceptance.

Assembly interfaces

Identify datum surfaces, bearing bores, threaded connections and the dimensions that control fit.

Functional requirements

Provide loading, sealing, thermal contact and environmental conditions relevant to the part.

Release evidence

Agree sample approval, inspection records and change-control requirements before production release.

Inputs for This Manufacturing Route
  • Alloy, casting weight, projected area and wall sections
  • Machined datums, sealing faces, leak-test medium/pressure/limit
  • Surface finish, first-article or PPAP requirements and annual volume

From Casting to Finished Component.

Your drawing, alloy and annual demand guide DFM review of draft, walls, undercuts and machining stock.

Die-casting cell with automated melt-handling equipment

Tooling & Casting

Customer-owned tooling and first shots are approved before controlled repeat casting.

Industrial heat-treatment line with guarded access platforms

Thermal Processing

Heat treatment is included where the alloy, geometry and approved part requirements call for it.

Row of CNC machining centers

Precision Machining

CNC machining finishes bearing bores, sealing faces and other drawing-defined interfaces.

CMM probe measuring a machined tooling surface

Inspection & Release

FAI and agreed dimensional, porosity and appearance checks support release with specified packing and documents.

For Procurement

MOQ, lead time, packaging and commercial terms — go straight to a quotation.

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For Engineering

Grades, drawings, process data and design support for your DFM review.

Manufacturing Capability

For Quality / SQE

Certificates, inspection planning, traceability and PPAP / FAI support per project.

Certificates & Documentation

For Logistics

Packing, destination and delivery terms — discuss the shipment requirements for your order.

Coordinate delivery

Why Die Casting?

For repeat production, die casting can consolidate complex geometry and reduce machining. Tooling, volume and acceptance requirements determine the project economics.

  • ✓Complex geometry, net shape — thin walls, internal features, and near-net external geometry in a single operation
  • ✓High production rate — a die cast cycle takes 30–90 seconds — thousands of parts per day from one tool
  • ✓Excellent dimensional repeatability — ±0.1mm on as-cast features; consistent part-to-part
  • ✓Integrated functions — cast-in inserts, bosses for fasteners, EMI shielding, and heat sink fins in the part design

Applications

ApplicationTypical SpecWhy This Material
Electronics HousingsA380, powder coatedEMI shielding + thermal management + structure
Motor HousingsADC12, machined borePrecision motor end bells and shells
Automotive BracketsA360, heat treatedStructural components with tight tolerances
LED LightingADC12, anodizedThermal management housings for high-power LEDs
Power ToolsA380, paintedLightweight structural housings

Die Casting Capabilities

Alloy datasheets available for download.

ParameterCapabilityNotes
AlloysA380, ADC12, A360, A413, Zamak 3/5AlSi-based aluminum + zinc alloys
Part size0.05–20 kgHot and cold chamber machines
Aluminum clamping force130–4,400 tonsMultiple machine classes across the qualified manufacturing network
Zinc clamping force88–160 tonsHot-chamber route subject to alloy, geometry and volume review
Manufacturing locationsNingbo and JiangsuSite and machine assignment confirmed during RFQ review
Confirmed Ningbo aluminum cell group10 machines160T ×2 · 200T ×2 · 280T ×1 · 400T ×1 · 700T ×1 · 800T ×2 · 1250T ×1
Wall thickness1.0–2.5mm typical (0.8mm minimum)Thinner possible with vacuum assist
Tolerance±0.1mm per 25mm (as-cast)CNC machined features to ±0.01mm
Surface finishRa 1.6–3.2µm as-castPolished or textured mold surfaces
Secondary opsCNC machining, tapping, anodizing, powder coat, e-coatIn-house and managed partners

Equipment availability, tonnage assignment and secondary operations are confirmed against part envelope, projected area, alloy and annual volume before quotation.

Materials We Cast

Our standard aluminum and zinc casting alloys — selected with you during DFM review:

AlloyFamilyCharacter
A380Al-Si-CuWorkhorse — best all-round castability and strength
ADC12Al-Si-CuAsian equivalent of A380, excellent fluidity
A360Al-SiHigher corrosion resistance, good pressure tightness
A413Al-SiOptimized for pressure-tight and thin-wall parts
Zamak 3 / 5ZnVery small parts with tight as-cast tolerances

Other alloys considered per project — confirm availability with engineering.

Tolerance & Surface Finish

Realistic as-cast values — we confirm achievable tolerances per feature during quotation:

FeatureTypical Capability
As-cast linear tolerance±0.1 mm per 25 mm
CNC-machined features±0.01 mm
As-cast surface finishRa 1.6–3.2 µm
Minimum wall thickness0.8 mm (1.0–2.5 mm typical)
Draft angle0.5°–2° per side by depth

Tighter requirements are reviewed case by case — ask engineering before specifying.

DFM for Die Casting

Design decisions that save cost and improve quality:

  • ✓Uniform wall thickness — avoid thick sections that cause porosity and sink marks; use ribs for stiffness instead of mass
  • ✓Draft angles — 0.5°–2° per side depending on depth — required for part release from the die
  • ✓Undercuts — minimize — each undercut adds a slide mechanism that increases tooling cost and maintenance
  • ✓Machining stock — specify 0.3–0.5mm stock on machined faces; die cast surfaces may be porous under the skin

Porosity & Solutions

Die casting inherently traps some gas — manage it with design and process:

  • ✓Vacuum assist — evacuating the cavity can reduce entrapped gas; the published 60–80% reduction reference is not a guarantee for every geometry. Select the process using porosity and leak-test acceptance requirements
  • ✓Impregnation — resin impregnation seals micro-porosity for pressure-tight applications (sealant and process selected to the applicable specification)
  • ✓Design for porosity — locate machined surfaces away from last-to-fill regions; specify porosity acceptance criteria in your drawing
Verified Equipment Summary

50 Die-Casting Machines Across the Strategic Manufacturing Network

The consolidated equipment inventory covers 46 aluminum-alloy machines and 4 zinc-alloy machines across Ningbo and Jiangsu. Project routing is confirmed against part size, projected area, alloy and annual volume.

Download Equipment List (PDF)

50
Die-Casting Machines in Total
46
Aluminum Machines
4
Zinc Machines
88–4,400T
Combined Clamping Range

Aluminum Die-Casting — 46 Machines

130–280T130T ×3 · 160T ×3 · 180T ×1 · 200T ×2 · 280T ×6
350–630T350T ×1 · 400T ×4 · 500T ×3 · 530T ×2 · 630T ×1
700–1,000T700T ×2 · 800T ×5 · 840T ×1 · 850T ×3 · 1,000T ×1
1,250–4,400T1,250T ×2 · 1,300T ×1 · 1,600T ×2 · 1,800T ×1 · 2,500T ×1 · 4,400T ×1

Zinc Die-Casting — 4 Machines

88T1 machine
100T1 machine
138T1 machine
160T1 machine

The network also supports downstream CNC machining, spray coating, assembly and project-defined inspection.

Equipment groupLocationSystemAluminumZincRouting notes
Ningbo facility ANingbo, ZhejiangTS15 machines—Large-tonnage aluminum route
Ningbo facility BNingbo, ZhejiangTS10 machines2Aluminum and zinc routes · In-house spray process
Ningbo facility CNingbo, ZhejiangISO9 machines—Broad mid-tonnage coverage
Jiangsu facilityJiangsuISO6 machines—Regional aluminum capacity
Ningbo facility DNingbo, ZhejiangISO6 machines2Aluminum and zinc routes · In-house spray process
Strategic Manufacturing-Base Evidence

More Views from the Manufacturing Network

Real workshop and equipment views from long-term strategic manufacturing bases covering tooling support, automated die casting, heat treatment, CNC machining, robotic handling and dimensional inspection.

7 equipment viewsManufacturing and secondary operations
1 inspection viewDimensional verification
Manufacturing visibilityTooling · die casting · heat treatment · machining · automation · inspection
Manufacturing equipmentInspection & testing
Robotic extraction system operating within a die-casting cell
Cell automation

Robotic Part Extraction

Automated handling supports stable cycle control and reduces manual contact with hot castings.

Multiple industrial robots on an automated component handling line
Automation

Robotic Handling Line

Integrated robots transfer and position components through repeatable downstream operations.

Panoramic exterior of a strategic die-casting manufacturing base
Strategic manufacturing base

Integrated Die-Casting Campus

A dedicated manufacturing campus expands project capacity for casting, machining and downstream operations.

Large die-casting machine and melting furnace at a strategic manufacturing base
Large casting equipment

Die-Casting Cell & Furnace

Integrated casting and melt-handling equipment supports controlled production of larger aluminum components.

Real views from long-term strategic manufacturing basesProducing site and machine assignment confirmed during RFQ review

Inspection & Quality Documentation

Inspection scope is agreed per project in the inspection plan.

Dimensional

Calibrated gauges and CMM measurement on critical dimensions per the agreed sampling plan.

Material & Surface

Alloy certificates from the casting lot; surface roughness and coating verification where specified.

Project Documentation

FAI reports and PPAP documentation per project requirements; RoHS / REACH declarations on request.

Inspection Plan Agreement

Specify critical characteristics, sampling and acceptance criteria so the requested records match your part and application.

Plan the quality review

Certificates & quality system

Application Gallery

Representative applications of aluminum die castings across industrial markets.

Engineering Guides

Make Better Die-Casting Decisions Before Tooling.

Use these practical guides to define alloy, leak testing and surface requirements before requesting a quotation.

Case Study — A380 Die Cast Housing

See how we consolidated die casting, CNC finishing and anodizing under a group quality framework for an electronics housing program.

Frequently Asked Questions

What alloys should I choose?

A380 and ADC12 are common die-casting designations, not automatic substitutes. Review the governing chemistry and property standard. A360, A413 or Zamak may be reviewed for corrosion, sealing or small-part requirements; selection remains project-specific.

How much does tooling cost?

Die casting tools run $5,000–$50,000+ depending on part size, complexity (slides for undercuts), and expected tool life. High-volume tools use H13 steel and last 100,000–500,000 shots with maintenance. We provide tooling quotes with each part quote — and the tool is your property.

What's the MOQ for die casting?

Practical minimum is 500 pieces per order — below that, tooling amortization dominates part cost. For prototypes (10–100 pieces), we recommend CNC machining from billet, then transitioning to die casting at production volume. Our DFM review includes this trade-off analysis.

Can die cast parts be anodized?

Yes, with caveats: high-silicon alloys (A380, ADC12) anodize to a gray/bronze finish with some cosmetic variation. For decorative clear or colored anodizing, we recommend A360 or low-silicon alloys. For corrosion protection, review powder coating or e-coat with the alloy, pretreatment, geometry and environmental acceptance test.

Have a Drawing?

Send it to our team for engineering review and quotation — DFM feedback and alloy recommendation included.

Request a QuoteRequest Technical Review

Confidential RFQ · NDA Available Upon Request