Quality planning at Jinhua Machinery begins with the approved drawing, purchase specification, and the characteristics that matter to the customer’s application. Our inspection approach is defined for each project rather than taken from a generic product template.

Drawing and Requirement Review

• Review drawings, specifications, revision status, materials, tolerances, surface requirements, and requested delivery schedule before quotation.
• Identify critical dimensions and any inspection or reporting requirements that must be included in the manufacturing plan.
• Clarify incomplete or conflicting requirements before production.

Process Control

Our manufacturing support follows IATF 16949-based process-control principles for automotive and industrial components. The production route, checkpoints, and acceptance criteria are established from the approved drawing and order requirements.

1. Confirm the current drawing revision and agreed technical requirements.
2. Plan material, machining, forging, casting, heat-treatment, surface-treatment, and inspection steps as applicable to the part.
3. Monitor the characteristics identified as important during production.
4. Perform final inspection against the approved drawing and agreed acceptance criteria.
5. Retain or provide records when these requirements have been agreed during quotation.

Inspection Methods and Records

The inspection method is selected according to the characteristic being verified. Please identify any required gauges, measurement methods, sample quantities, dimensional reports, material certificates, heat-treatment records, surface-treatment records, or traceability requirements in your RFQ so they can be reviewed before quotation.

Quality Information to Include in Your RFQ

• 2D drawing and, when available, 3D model with revision level
• Material grade and applicable standard
• Critical dimensions, tolerances, and datum requirements
• Heat treatment, hardness, coating, plating, or surface-finish requirements
• Inspection report, certificate, marking, packaging, and traceability requirements
• Prototype quantity, production quantity, annual demand, and target delivery date

Related Manufacturing Capabilities

Review our custom shaft manufacturing, custom gear manufacturing, fastener components, machined forging, and machined casting capabilities.

To discuss inspection requirements for a drawing-based project, visit our contact page or email fei.jiang@jinhuamach.com.