Aluminum Die-Cast Housing
ADC12 or A380 reference; 1.5–3.0 mm HPDC wall-section review; CT4–CT8 as-cast tolerance and H7/H8 machined interfaces by drawing.
Drawing-based motor component supply
Cast Motor Housing Manufacturer
Drawing-based cast motor housings coordinated around material, casting route, stator bore, bearing and end-cover datums, mounting interfaces, heat transfer and the agreed inspection plan.
- Casting route selected from the released drawing
- Critical bores and faces reviewed as one datum system
- Porosity, distortion and leakage risks defined before tooling
Product routes
Match the Casting Route to Geometry, Load and Production Volume
Material and process are confirmed from wall sections, ribs, mounting features, machining stock, thermal duty, sealing boundary and expected annual demand.
Technical review
Cast Motor Housing Review Parameters
Values below are drawing-review bands used to structure an RFQ, not universal GX guarantees. The released drawing and approved sample control production acceptance.
| Parameter | Reference value / range | Release condition |
|---|---|---|
| Material / casting route | ADC12, A380, A356, gray or ductile iron | Final grade and HPDC, LPDC, gravity or sand-cast route by project |
| Reference wall section | 1.5–4.0 mm for thin-wall aluminum review | HPDC is commonly reviewed from 1.5–3.0 mm; local bosses, ribs and iron sections require DFM |
| Casting / machined tolerance | ISO 8062-3; CT4–CT8 die cast / CT8–CT12 sand cast; CNC ±0.05 mm reference | Size, route and drawing-specific tolerances override general grades |
| Material mechanical properties | ADC12 UTS ≈310 MPa / A356-T6 UTS 262–290 MPa / HT250 UTS ≥250 MPa | Material-certificate values and heat-treatment condition govern acceptance |
| Thermal conductivity | Aluminum 90–151 W/m·K / gray iron ≈45 W/m·K | Reference material data for thermal review; finished-housing performance depends on geometry and interfaces |
| Machined fits | H7 / H8 or drawing-defined | Stator bore, bearing seat and end-cover pilots |
| Coaxiality / TIR | 0.03–0.10 mm review band | Referenced to the released rotational datum |
| Critical surface finish | Ra 0.8–3.2 μm | Bearing, seal, locating and press-fit surfaces by function |
| Leak-test reference | 0.2–0.5 MPa (2–5 bar); water jacket 1.5–2× maximum working pressure | Medium, pressure, hold time and allowable leak rate must be written into the specification |
| Surface protection | Anodize 8–15 μm / powder coat NSS ≥240 h per ISO 9227 / e-coat by project | Coating system, thickness, salt-spray duration and masked interfaces require written agreement |
Final values become supply commitments only when written into the released drawing, approved specification, quotation and acceptance plan.
RFQ quick facts
What Buyers Should Define Before a Cast Motor Housing RFQ
A useful quotation starts from the released geometry, mating interfaces, operating boundary and measurable acceptance criteria.
- Drawing package
- 2D GD&T plus STEP/IGES and revision status
- Interfaces
- Stator, end cover, bearing, foot/flange and terminal-box datums
- Operating boundary
- Load, speed, temperature, vibration, cooling medium and target enclosure
- Production plan
- Sample quantity, annual demand, inspection evidence and PPAP/FAI level
Product and supply scope
What Is a Cast Motor Housing?
A cast motor housing is the structural enclosure that locates the stator and end covers, transfers mounting and reaction loads, supports heat rejection and protects the internal motor components. Its performance depends on the casting route, section design and the relationship between machined bores, faces and sealing features—not on material name alone.
GX coordinates drawing review, casting, machining, surface treatment and agreed inspection through the GX-Managed Manufacturing Network. Exact material, tooling, test method and supplied subcomponents are confirmed in the quotation and approved BOM.
Project route
Control the Casting Before Machining Exposes the Risk
The project route connects DFM, metal control, casting, critical-interface machining and measurable release criteria.
Requirement Review
Review CAD, GD&T, wall sections, interfaces, load, cooling, volume and validation.
Casting DFM
Select the casting route and review draft, ribs, bosses, gates, overflow and machining stock.
Metal and Forming
Control alloy or iron grade, melting, degassing and the approved casting parameters.
Cleaning and Stabilizing
Trim, deburr and blast; add impregnation for microporosity and stress relief when specified (aluminum 170–200°C / cast iron 550–600°C reference).
Critical Machining
Machine stator bore, bearing pilots, sealing faces and mounting datums to the released setup.
Release Control
Verify dimensions, porosity method, surface, cleanliness, coating and leakage as agreed.
Verification
Verify Geometry, Casting Integrity and Sealing on the Same Revision
Inspection is linked to functional interfaces so a visually acceptable casting is not released with an unstable bore, exposed pore or distorted sealing face.
| Control item | Method / evidence | Buyer benefit |
|---|---|---|
| Material / casting | Spectrometer or material certificate, hardness and visual standards | Confirms grade and casting condition |
| Critical geometry | CMM, bore gauges, roundness and roughness equipment | Controls stator fit, bearing alignment and mounting |
| Internal integrity | X-ray per ASTM E505, CT, sectioning or agreed porosity standard by risk; defect size and location defined on drawing | Keeps defects away from machined and sealed zones |
| Sealing boundary | Air-decay, water or helium method when specified | Verifies the defined pressure and leakage limit |
| Surface / cleanliness | Coating thickness, adhesion, masked faces and residual-particle checks | Protects assembly and service reliability |
Application fit
Where Cast Motor Housing Fits OEM Motor Designs
Application fit is established by the mating motor package, mounting, load, thermal path, environment and validation—not by the housing name alone.
Industrial Motors
Finned aluminum or iron frames reviewed for stator fit, mounting rigidity and heat rejection.
Pumps and Compressors
Housing and pump/cover interfaces reviewed for sealing, bearing alignment and corrosion conditions.
Automotive Auxiliary Drives
Compact housings reviewed for weight, traceability, vibration and production consistency.
Liquid-Cooled Drives
Water-jacket projects reviewed for porosity location, welding/closure route, cleanliness and leakage.
Project control
Documented Control for Drawing-Based Cast Motor Housing Supply
GX coordinates revision, material, process, sample approval, critical-characteristic inspection and recurring records according to the project scope. Certification claims are limited to their documented company and product scope.
Revision and BOM Control
Housing material, interfaces, finish, supplied components and acceptance follow the released revision.
Sample Approval
Dimensions, interface fit, surface and project-specific tests are recorded before recurring production.
Batch Inspection
Incoming, in-process and final controls use the agreed method, fixture, sampling and limits; Cpk ≥1.33 is the reference target where critical-characteristic capability is required.
Available project evidence is confirmed at quotation and may include material records, dimensional or CMM reports, roughness, coating, leakage, cleanliness and marked-drawing results.
Buyer communication
Discuss Cast Motor Housing Projects Face to Face
GX Magnet uses industrial exhibitions and engineering discussions to connect magnetic materials, stator/rotor interfaces and drawing-based motor-component supply.
Bring the housing and mating-component drawings. The review can identify the datum chain, supply boundary, process risks and missing RFQ information before formal quotation.
Sample Review
Compare materials, housing forms, machined interfaces and surface treatments.
Engineering Discussion
Review stator fit, bearing axis, mounting, cooling, sealing and inspection.
Supplier Evaluation
Plan DFM, sample approval, evidence, change control and recurring communication.
GX Magnet
Magnetic-Material and Motor-Component Experience Since 1992
GX combines established permanent-magnet experience with drawing-defined motor-component coordination so housing interfaces can be reviewed together with the stator, rotor, magnets, end covers and operating package.
Magnetic Interface Knowledge
Ferrite magnets, multipole rings and rotor/stator component experience support air-gap, magnet-location and assembly discussions.
GX-Managed Manufacturing Network
Forming, machining, treatment and assembly responsibilities are coordinated and stated by project rather than described as universally in-house.
Drawing-Based Verification
Critical dimensions, sample records and agreed batch checks connect the quotation to recurring delivery.
30+ Years Serving Clients Worldwide
FAQ
Cast Motor Housing Sourcing Questions
Clarify the drawing, interfaces, process route, operating conditions, test boundary and supplied BOM before comparing quotations.
Which casting process should be used for our motor housing?
HPDC suits complex thin-wall repeat production; low-pressure or gravity casting supports different integrity and heat-treatment needs; sand casting suits larger or lower-volume frames. GX confirms the route only after reviewing geometry, material, machining and volume.
How do you prevent pores from appearing after CNC machining?
Critical machined and sealed zones are identified during DFM. Gate, overflow, venting, section transitions and machining stock are reviewed, then the agreed X-ray, CT, sectioning or leakage method is tied to acceptance.
Can GX supply the housing fully machined?
Yes, when the released drawing defines the stator bore, bearing and cover pilots, sealing faces, mounting datums, threads, surface finish and inspection responsibility.
Can a cast motor housing be supplied with a cooling jacket?
It can be evaluated as a project. Provide coolant, working and proof pressure, temperature, flow direction, joining method, cleanliness and allowable leak rate.
What controls stator-bore roundness after machining?
Casting stability, machining allowance, clamping force, datum selection and measurement after unclamping are reviewed together. The drawing must state the required roundness or cylindricity and measurement condition.
Can GX guarantee an IP rating for the housing alone?
No. The finished motor IP rating depends on the housing, end covers, shaft seal, connectors, fasteners and assembly. GX supplies housing features to the agreed drawing and test boundary.
What documents can be supplied with samples?
The project can include material evidence, dimensional reports, CMM results, roughness, coating, X-ray or leakage records and a marked drawing, as agreed at quotation.
What information is needed for quotation?
Send 2D/3D files, material preference, critical interfaces, cooling and sealing conditions, surface treatment, sample quantity, annual demand and required validation documents.
Request for quotation
Request a Quote for a Cast Motor Housing
Send 2D/3D files, mating interfaces, material and process requirements, operating limits, surface finish, sample quantity, annual demand and validation expectations.
- Housing dimensions, datums, critical fits and GD&T
- Stator, end-cover, bearing, mounting, connector and sealing interfaces
- Material, forming route, machining, treatment and supplied BOM boundary
- Temperature, speed, load, cooling, environment and acceptance plan