Geometry and access
Review diameters, bores, threads, shoulders and milled features together. Restricted access or thin sections may require changes to the proposed process.
EV Charging Gun
Contact Pins
Custom machined contact pins for charging-gun assemblies. Review contact profiles, locating shoulders, cable-side termination features and plating requirements.
Swiss machining and CNC turning/milling
Machined components to an approved drawing
Critical features and finish reviewed per order
Inspection and delivery scope agreed before production
DFMDrawing & process review
QCAgreed inspection plan
Component Scope and Drawing Review
CNCPioneer supplies individual CNC-machined parts for charging equipment. Complete charging guns, plug assemblies, vehicle inlets and charging stations are outside this supply scope.
This page focuses on cable-side charging-gun contact pins: their front contact profile, locating shoulders and rear termination features.
The equipment designer or integrator defines and validates electrical rating, temperature rise, mating performance, sealing and system compliance. A machined part or dimensional report does not establish those assembly ratings.
- Contact profileDefine the contact length, leading geometry and diameters from the mating assembly.
- Location in the carrierDimension shoulders, grooves and retention features from a common datum.
- Rear terminationSpecify the cable-side hole, thread or joining interface; identify any assembly operation separately.
- Plated conditionState which contact surfaces are plated and how final dimensions will be accepted.
Plan the Machining and Acceptance Requirements
Review the individual component before confirming the production route, price and schedule.
Material and condition
State the exact material specification, stock condition and permitted alternatives. Confirm availability and any treatment before ordering.
Finish and final dimensions
Identify functional surfaces, masked areas and the condition in which dimensions are accepted. Include any required measurements after finishing.
Quantity and documentation
Share initial and repeat quantities, the target date and required records. Inspection coverage and delivery timing are confirmed with the quotation.
What to Include in Your Quote Request
Send the component drawing and clarify the supplied item before requesting pricing.
- 2D drawing and available 3D CAD with matching revision.
- Exact material grade, condition, quantity and repeat-order expectations.
- Critical fits, datums, threads, edge limits and finishing requirements.
- Inspection records, target date and any component qualification requirements.
Component Examples to Specify
Examples illustrate individual machined parts. The accepted drawing defines the supplied item and its inspection requirements.
Power contact pins
Specify the contact profile, locating shoulder and rear termination on the individual pin drawing.
Stepped contact pins
Identify changes in diameter, retention features and any internal bore before choosing the machining route.
Pilot and signal pins
Define small-diameter features, edge conditions and inspection access; the electrical function belongs to the assembly specification.
Industries & Applications
Application images show the assembly environment. The supply scope is the individual machined component defined in the quotation.
EV Charging Equipment Applications
Machined components are integrated into charging assemblies by the equipment manufacturer. The component drawing and quotation define our supply scope.
Explore automotive component machiningMaterials
Material Options for Drawing Review
Specify the exact grade and condition selected for the component. Availability, finishing compatibility and suitability require project review.
Grade and condition to drawing
Copper and specified copper alloys
Provide the exact alloy and condition selected for the contact or terminal. Include the finish stack and required material records.
Grade and condition to drawing
Brass
Specify the grade, contact or mechanical function, and any plating requirements. Confirm the material selection against the assembly design.
Grade and condition to drawing
Stainless steel
For specified mechanical sleeves, locating parts or fasteners, identify the grade, fit and required surface condition.
Finish selection
Define the Finish on the Drawing
Include the finish specification, surfaces covered, masking and post-process dimensions. Process availability and documentation are confirmed for the order.
Drawing requirement
Deburring and edge requirements
Identify edges that contact seals, cables or mating parts. State permitted edge breaks and burr limits rather than relying on a generic deburr note.
- Best for
- Functional edges and assembly interfaces
- Specify
- Burr limits, edge break and protected features
Drawing requirement
Surface condition
Specify the required texture or coating for each functional surface. The drawing should distinguish cosmetic areas from fits and contact regions.
- Best for
- Specified contact, sealing and mating surfaces
- Specify
- Surface texture, coating and masking areas
Drawing requirement
Final inspection condition
Define whether acceptance applies before or after treatment. Include any coating-thickness, appearance and dimensional records needed.
- Best for
- Parts accepted after treatment
- Specify
- Acceptance condition and required records
Production Planning
Process selection, batch planning and inspection are reviewed for your drawing. Machine allocation and delivery timing are confirmed with the quotation.
DFMDrawing and process review
RFQQuantity and delivery review
Inspection & documentation
Inspection and Order Documentation
Agree the features to inspect, the measurement method and the records required for acceptance.
DrawingFeature-specific limits
AgreedInspection coverage
No universal tolerance or certification is implied. Supplier qualification, material records and inspection requirements must be confirmed for the specific order.
Material and Revision
- Check
- Drawing revision, material grade and supplied condition.
- Verify
- Review the purchase specification and agreed material documentation.
- Records
- Drawing revision and material records required by the order.
Critical Geometry
- Check
- Mating diameters, bores, threads, datums and positional relationships.
- Verify
- Agree suitable measuring methods and inspection access for each feature.
- Records
- Specified critical-feature measurements and any first-article report.
Finish and Edges
- Check
- Surface requirements, burr limits and dimensions after treatment.
- Verify
- Inspect in the acceptance condition defined by the drawing.
- Records
- Agreed finish and post-process inspection results.
Release to Delivery
- Check
- Quantity, marking, cleanliness, packaging and required records.
- Verify
- Review the agreed release criteria before shipment.
- Records
- Inspection and delivery documents included in the quotation.
Agree Your Quality Document Pack
Confirm the certificates, inspection reports and production records needed for your order when sharing your drawing.
EV Charging Gun Contact Pins Questions
Do you supply complete charging equipment?
CNCPioneer supplies individual CNC-machined parts for charging equipment. Complete charging guns, plug assemblies, vehicle inlets and charging stations are outside this supply scope.
What is the focus of this component page?
This page focuses on cable-side charging-gun contact pins: their front contact profile, locating shoulders and rear termination features.
Does a machined component have an electrical or sealing rating?
The equipment designer or integrator defines and validates electrical rating, temperature rise, mating performance, sealing and system compliance. A machined part or dimensional report does not establish those assembly ratings.
How should plating and mating dimensions be specified?
Identify the substrate, finish specification, coated and masked surfaces, and whether each controlled dimension applies before or after plating. Include the mating-part drawing where it affects acceptance.
What is required for a quotation?
Send the current component drawing, available model, material grade and condition, quantity, finish, critical dimensions and required records. Price, feasibility, any secondary operations and delivery timing are confirmed for that scope.
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Request a Component Machining Quote
Custom machined contact pins for charging-gun assemblies. Review contact profiles, locating shoulders, cable-side termination features and plating requirements. Share the drawing revision, material, quantity, finish and required inspection records.
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