Production Example

Q345R High Pressure Gas Cylinder Component CNC Machining Example

A real DXSCNC production example for a Q345R sealed gas-chamber component made by CNC turning and precision machining, followed by nickel plating. The supplied project requirement identifies gas service up to 6 MPa.

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Q345R pressure gas cylinder component CNC machining example by DXSCNC

Confidentiality Note

This production example uses DXSCNC-owned product photos. Customer identity, drawing number, project number, order value and confidential technical information are not published. The 6 MPa value is a supplied project requirement, not a public pressure-test record, code certification or general approval for every pressure application.

Project Snapshot

Page typeProduction Example
ComponentSealed gas cylinder / gas-chamber component
MaterialQ345R pressure-vessel steel
ApplicationIndustrial gas-pressure equipment
Supplied pressure requirementUp to 6 MPa
ManufacturingCNC turning and precision machining
Surface treatmentNickel plating
Main featuresCylindrical body, machined end face, central connection feature, circular hole pattern, sealing-related surfaces and rounded closed end
Inspection focusCritical dimensions, sealing-related areas, feature position, surface finish and visual condition after plating
Public evidence limitFinished-component photos are published; the customer drawing, pressure-test record and confidential inspection data are not public

Product Features

The component is a long cylindrical pressure part with a closed rounded body, a machined end face, central connection geometry and a circular pattern of precision openings. These features must be reviewed as a functional group because body geometry, end-face features and sealing-related surfaces can affect assembly and gas containment.

The public photographs show the finished nickel-plated component from complete, end-face and surface-detail views. They do not reveal the customer drawing or confidential dimensions.

CNC machined sealing and connection features on a Q345R pressure component
End-face view showing the central connection feature, circular feature pattern and sealing-related machined areas.

Real Production Photos

These are DXSCNC-owned product photos. The natural wood background is retained as real manufacturing evidence; the web versions were only centered, lightly adjusted, resized and compressed.

Q345R pressure gas cylinder component CNC machining example by DXSCNC
Complete view of the DXSCNC-owned Q345R sealed gas-chamber production example, shown on its original wood background.
Nickel plated Q345R pressure cylinder surface finish detail
Close view of the nickel-plated cylindrical surface and rounded end area used for post-plating visual review.
CNC machined sealing and connection features on a Q345R pressure component
End-face view showing the central connection feature, circular feature pattern and sealing-related machined areas.
Q345R steel CNC machined pressure component with nickel plated finish
Angled view of the machined end features and cylindrical body after nickel plating.
Finished Q345R pressure cylinder component for dimensional and visual inspection
Finished-component view used to explain dimensional, sealing-area and plating-condition inspection focus.

Material and Process

The confirmed material is Q345R pressure-vessel steel. Its use in a pressure-related component does not by itself establish compliance with a pressure-vessel code; the controlled drawing, material documentation, manufacturing route, joining method, pressure validation and applicable regulations remain project-specific.

The confirmed manufacturing route is CNC turning and precision machining, followed by nickel plating. Process review should account for tool wear, surface finish, heat input, workholding stability, sealing-related feature protection and dimensional change after plating.

Confirmed process facts

  • Q345R pressure-vessel steel
  • CNC turning
  • Precision end-feature machining
  • Nickel plating
  • Post-plating visual review

Manufacturing Risks

Sealing surface quality

Surface flatness, finish, contact area and machining marks should be defined from the drawing where the feature affects sealing.

Cylindrical and feature relationship

Body geometry, concentricity, wall-related dimensions and end-feature position may affect assembly or function and should be reviewed together.

Material machining behavior

Q345R machining requires suitable cutting parameters, tool-condition control and a process that supports consistent surface finish.

Plating allowance

Nickel-plating thickness can change finished dimensions, thread or fit conditions and edge appearance, so critical requirements should specify whether they apply before or after plating.

Masking and surface protection

Sealing, mating or connection features may require masking or special handling according to the controlled drawing and plating specification.

Pressure requirement validation

Machining inspection and pressure validation are different controls. Any pressure test, test medium, hold time, acceptance limit and certification requirement must be specified by the buyer.

Inspection Focus

Inspection focus is defined from the customer drawing and functional requirements. For a similar component, relevant checks may include outside diameter, body length, end-face dimensions, hole diameter and position, concentricity where specified, sealing-related surface condition and visual review after nickel plating.

Suitable tools may include micrometers, calipers, bore gauges, height gauges and other measurement methods selected for the geometry and tolerance. This public page does not claim that a pressure test or a specific inspection report was released for this example.

Finished Q345R pressure cylinder component for dimensional and visual inspection
Finished-component view used to explain dimensional, sealing-area and plating-condition inspection focus.

Surface Treatment / Packing

Nickel Plated Surface Protection

Nickel plating provides a protective surface and supports corrosion-resistance requirements for the specified industrial application. Machining review should consider plating-thickness allowance, dimensional change, masking of critical features and post-plating inspection.

The case-specific packing method is not approved for public release. For similar plated parts, DXSCNC reviews separated packing, protection of sealing and connection features, moisture exposure and prevention of metal-to-metal contact before shipment.

Nickel plated Q345R pressure cylinder surface finish detail
Close view of the nickel-plated cylindrical surface and rounded end area used for post-plating visual review.

Engineering Takeaway

Pressure-related CNC parts should not be quoted from nominal size alone. The drawing package should define the material standard, pressure requirement, sealing areas, functional datums, critical dimensions, plating thickness, inspection plan and any required pressure-test or documentation protocol.

DXSCNC can review machining and inspection feasibility from the released drawing, but system design approval and pressure-code compliance remain the responsibility of the applicable engineering and regulatory process.

Buyer focus

  • Sealing-area definition
  • Critical feature relationships
  • Pre- and post-plating dimensions
  • Inspection reporting
  • Pressure-test specification
  • Protected export packing

RFQ Checklist

  • 2D drawing
  • 3D model
  • Q345R material specification and documentation requirement
  • Quantity
  • Pressure requirement
  • Sealing requirement
  • Critical tolerances and datum references
  • Nickel-plating specification and thickness
  • Masking requirements
  • Inspection and pressure-test requirements
  • Packing and delivery notes

Send drawings for review

DXSCNC will review machining range, workholding, material behavior, sealing-related features, plating allowance and inspection feasibility before quoting.

Send Drawings for Review

Related Pages

FAQ

Can DXSCNC review Q345R pressure-vessel components for CNC machining?

Yes. DXSCNC can review drawing-based Q345R components for machining range, workholding, sealing-related features, surface-treatment allowance and inspection feasibility before quotation. Pressure-code compliance and system-design approval remain project-specific.

What should be considered when machining pressure-related CNC components?

Important review points include material specification, sealing surfaces, feature relationships, dimensional stability, plating allowance, inspection requirements and any separate pressure-test protocol required by the buyer.

Can DXSCNC coordinate nickel plating for CNC machined steel parts?

Yes. DXSCNC can review machining and nickel-plating coordination, including thickness allowance, masking, protection of critical surfaces and post-plating visual or dimensional checks according to the drawing.

Does the 6 MPa value on this page represent a DXSCNC certification?

No. It is the supplied requirement for this production example. The page does not publish a pressure-test record, code certification or general approval for every pressure application.

What should buyers send for a similar RFQ?

Provide the 2D drawing, 3D model, Q345R material specification, quantity, pressure and sealing requirements, critical tolerances, nickel-plating thickness, masking notes, inspection requirements and any pressure-test protocol.

Request a Quote

Ready to review a pressure-component machining project?

Send the drawing, material specification, quantity, pressure and sealing requirements, critical tolerances, nickel-plating notes and inspection requirements.

Engineering review before quotation

DXSCNC will review manufacturability, feature relationships, surface-treatment allowance, inspection feasibility and packing risks. Pressure-code or system-design approval is not implied.

Request a Quote