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Quality Assurance

Inspection and process control based on product drawings, specifications and order requirements.

Quality Control Based on Drawings and Requirements

Wei Xing Machinery applies inspection and process control to hydraulic fittings, adapters, welded tube assemblies, valve components, manifold blocks, hydraulic cylinder parts and custom CNC machined components. Inspection items are selected according to product type, drawings, critical dimensions, thread interfaces, surface requirements and customer specifications.

Our Quality Commitment

Practical inspection steps are selected according to drawings, order requirements and product applications.

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Incoming Material Verification

Review material specifications, dimensions, appearance and available material documents according to drawing and order requirements before machining.

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Dimensional Inspection

Check critical dimensions, hole positions, diameters, lengths and tolerances using suitable measuring methods based on the drawing.

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Thread & Interface Inspection

Inspect thread type, pitch, engagement, sealing faces, cone seats and interface geometry according to product requirements.

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Surface & Finish Inspection

Review burrs, sharp edges, machining marks, cleanliness, coating appearance and visible surface defects where applicable.

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Functional or Pressure Testing

Functional, sealing or pressure testing can be arranged for selected fittings and assemblies when required by the drawing, application or order.

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Final Review & Documentation

Confirm appearance, quantity, packaging and specified inspection items before shipment. Material or inspection documents can be prepared according to project requirements.

Product-Specific Inspection Focus

Hydraulic Fittings & Adapters

Threads, sealing faces, cone angles, O-ring grooves, hex dimensions and surface finish.

Hydraulic Hose Fittings

Thread or swivel interfaces, hose-tail geometry, ferrule matching and assembly dimensions.

Welded Tube Assemblies

Routing dimensions, joint position, weld appearance, cleanliness and interface alignment.

Manifold Blocks & Valve Bodies

Port positions, cavity dimensions, internal passages, sealing surfaces, deburring and valve body inspection and quality control.

Valve Spools, Pistons & Cylinder Parts

Diameters, stepped features, grooves, holes, surface condition and fit-related dimensions.

Custom CNC Parts

Drawing-defined dimensions, material, threads, surface finish and customer-specified critical features.

Production Process

From raw material inspection to final delivery, each step is controlled according to product requirements and specified inspection scope.

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Raw Material Inspection

Verify steel bars, forgings, dimensions, appearance and available material documents before production.

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CNC Machining

Precision turning and milling for hydraulic fittings and custom CNC parts.

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Deburring

Remove sharp edges and burrs to improve safety and assembly quality.

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Cleaning

Clean machined parts to remove chips, oil, and surface contaminants.

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Surface Treatment

Apply zinc plating, passivation, or other finishes based on product requirements.

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Dimensional Inspection

Check critical dimensions, threads, sealing faces and specified tolerances based on the drawing.

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Assembly

Install O-rings, nuts, sleeves, or related components when required.

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Functional / Pressure Testing

Perform functional, sealing or pressure testing for selected products when required by drawings, specifications or order conditions.

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Final Inspection

Confirm appearance, quantity, specified dimensions and packaging requirements before shipment.

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Packaging & Shipment

Pack parts securely for export delivery and long-distance transportation.

Inspection Information Required

Providing this information during inquiry or ordering helps define the inspection scope before production.

Quality FAQ

What inspection items are commonly checked?

Common checks include material verification, key dimensions, threads, sealing interfaces, surface condition, appearance, quantity, packaging and specified customer requirements.

Are all hydraulic fittings pressure tested?

Not every product requires pressure testing. Testing is arranged for selected products when specified by drawings, applications, standards or order requirements.

Can inspection reports be provided?

Material documents, dimensional inspection records or test documentation can be prepared according to project requirements when specified during inquiry or ordering.

How are threads and sealing interfaces checked?

Threads and sealing interfaces are checked according to product requirements, including thread type, pitch, engagement, sealing faces, cone seats, O-ring grooves and interface geometry where applicable.

Can you follow customer-specific inspection requirements?

Yes. Inspection items can be arranged according to drawings, specifications, critical dimensions and order requirements provided by the customer.

What quality information should be included in the drawing or purchase order?

Please include drawing revision, critical dimensions, tolerances, thread standard, sealing interface, material specification, surface treatment, functional or pressure test requirements, required documents and packaging requirements.

Need Inspection or Material Documentation?

Material documents, dimensional inspection records or test documentation can be discussed and prepared according to project requirements.