CNCPioneer provides IATF 16949 and AS9100D CNC machining for electric vehicle components in China.
EV components machining differs from conventional automotive machining in four ways that define the technical requirements CNCPioneer's EV components manufacturing programs address.
Coordinate geometry, material, finishing and inspection around the part's intended function.
The traction motor stator bore is the most functionally critical precision feature in EV components manufacturing — governing motor thermal performance, electromagnetic performance, and structural alignment.
Every EV motor housing, battery cold plate, and power electronics enclosure contains precision-machined liquid cooling channels.
Review critical dimensions, datums and mating features and functional requirements before defining the process.
Motor housing, battery structural end plates, cooling plates, inverter housing, OBC enclosure, rotor shaft, reduction gear housing, e-axle body, and resolver housing — all from one IATF 16949 quality system .
Modern e-axle structures, motor-gearbox integrated housings, and battery tray structural members have compound-angle mounting interfaces and non-orthogonal bearing bore arrangements.
Engineering DFM review, thermal analysis, PPAP documentation, and coating allowance planning are built into the program review.
Explore representative configurations and share your drawing for a product-specific review.
Electric Motor Housing & End Cap Programs machined to your drawing. Confirm material, functional dimensions and finish before production.
Battery module end plates: face flatness 0.010mm/300mm; face parallelism 0.010mm; bolt hole true position ±0.010mm; material 6061-T6 aluminum standard (1/3 density of steel), anodized for corrosion protection.
Power Electronics Housing Programs machined to your drawing. Confirm material, functional dimensions and finish before production.
Single-speed reduction gearbox housing: input shaft bearing bore pair ±0.002mm each with bore-to-bore concentricity ±0.005mm; input-to-output shaft center distance ±0.010mm; inter-shaft angular relationship ±0.005°; housing-to-motor mating face flatness 0.010mm with pilot register ±0.005mm.
Rotor shaft for EV traction motor: 42CrMo4 through-hardened HRC 28–34 standard; 17-4PH H900 for corrosion-combined high-strength programs.
EV Thermal Management Machined Components machined to your drawing. Confirm material, functional dimensions and finish before production.
Match the component to its operating environment, assembly interfaces and documentation requirements.
EV Components for vehicle systems, electrical connections and production assemblies, with material and inspection requirements confirmed for the application.
EV Components for vehicle systems, electrical connections and production assemblies, with material and inspection requirements confirmed for the application.
EV Components for vehicle systems, electrical connections and production assemblies, with material and inspection requirements confirmed for the application.
EV Components for vehicle systems, electrical connections and production assemblies, with material and inspection requirements confirmed for the application.
EV Components for electronic devices, connectors and compact mechanical assemblies, with material and inspection requirements confirmed for the application.
Explore consumer electronics machining
EV Components for vehicle systems, electrical connections and production assemblies, with material and inspection requirements confirmed for the application.
Explore machining capabilities, material options and quality support for automotive components.
Explore automotive machiningMaterials
Confirm the exact grade, delivery condition and finish compatibility with your drawing.
Aluminum options for lightweight machined components. Confirm the alloy, temper, finishing allowance and critical assembly dimensions.
Aluminum options for lightweight machined components. Confirm the alloy, temper, finishing allowance and critical assembly dimensions.
Aluminum options for lightweight machined components. Confirm the alloy, temper, finishing allowance and critical assembly dimensions.
Aluminum options for lightweight machined components. Confirm the alloy, temper, finishing allowance and critical assembly dimensions.
Aluminum options for lightweight machined components. Confirm the alloy, temper, finishing allowance and critical assembly dimensions.
Confirm the exact material grade, condition, heat-treatment requirements and certificates against the approved drawing.
Confirm the exact material grade, condition, heat-treatment requirements and certificates against the approved drawing.
Stainless steel options for corrosion-resistant components. Confirm the grade, delivery condition, surface finish and cleaning requirements.
Finish selection
Select the finish around the specified material, functional surfaces and service conditions. Confirm process details and acceptance requirements with your drawing.
Review type ii clear anodize against the material, functional surfaces and intended service conditions.
HV 400+ hardness for aluminum EV component sliding contact surfaces — rotor bearing seat OD wear protection; e-axle housing bore wear protection; battery module guide rail surfaces.
Review passivation against the material, functional surfaces and intended service conditions.
Corrosion protection for aluminum EV component bores and threads in aggressive coolant chemistry environments — Ni-P coating uniform on complex internal features; ±0.003mm plating allowance incorporated in machined dimensions.
Electrically conductive chromate conversion for aluminum EV inverter, OBC, and PDU housing assembly seam interfaces — contact resistance ≤5 mΩ/cm² for EMC shielding continuity at housing joints.
Review powder coat & zinc-nickel electroplate against the material, functional surfaces and intended service conditions.
Machining resources for drawing review, prototypes and repeat-production programs.
Inspection & documentation
Review material identity, machining datums, functional dimensions and production records for your component.
Final tolerances, inspection coverage and acceptance criteria are confirmed against your drawing, material and geometry.
Confirm the certificates, inspection reports and production records needed for your order when sharing your drawing.
The product range includes Electric Motor Housing & End Cap Programs, Battery Pack Structural Components, Power Electronics Housing Programs. Custom geometry is reviewed against the approved drawing.
Material options include Aluminum 6061-T6, Aluminum 6063-T5, Aluminum 7075-T6. The exact grade and condition should be confirmed for your application.
Define critical dimensions, datums and mating features, together with datums, tolerances and required surface condition.
Finishing options include type ii clear anodize, type iii hard anodize, passivation. Applicability is reviewed against the specified material and geometry.
Pricing and delivery are confirmed after reviewing the drawing, material availability, quantity, machining route, finishing and inspection scope.
CUSTOM CNC PARTS
Share your drawing or 3D model, material, critical dimensions, finish and order quantity. We’ll review the machining route, inspection scope and delivery requirements.
5-Axis CNC Machining Aerospace Components
CNC Turning for Humanoid Robot Components
CNC-Machined EV Charger Components
EV Charging Gun Contact Pins