Managing Shop Floor Process Routing Cards in Chinese Manufacturing Contracts
Enforce physical, tamper-sealed shop floor routing cards as mandatory contractual delivery annexes to stop unauthorized process bypasses and secure legal remedies.
Process Bypass
Meaning
Quality management deviation occurs when a factory skips a mandatory step in the production sequence to save time or resources. Engaging in a process bypass is prohibited under the Quality Law of the People’s Republic of China unless an emergency amendment has been approved. This deviation compromises the traceability of the manufactured goods.
The local market supervision bureau enforces strict administrative penalties if an unauthorized detour occurs on the assembly line.
Authorization Threshold
Manufacturing compliance protocols require high-level sign-offs before any deviation from the standard operating procedure is permitted. An authorized process bypass must be documented through a temporary engineering change request. This request must be signed by the quality director and the production manager.
Customer approval is also required for critical processes. This safeguards the supplier from liability under the contract.
Risk Assessment
Operational safety evaluations must precede any change to the validated manufacturing sequence to identify potential product defects. Evaluating a proposed process bypass requires a cross-functional team to review the impact on product safety. This review determines whether the omitted step affects the mechanical integrity, the electrical insulation, or the chemical composition of the final product.
A formal risk priority number is calculated to decide if additional inspection steps must be added further down the line to compensate for the missing process. If the calculated risk is too high, the deviation is rejected and the original sequence remains active.
Verification Step
Factory audit procedures use specific checks to discover undocumented deviations during the assembly phase. To detect an unapproved process bypass, auditors compare the actual cycle times on the assembly line against the master routing times stored in the enterprise resource planning system. Any significant discrepancy indicates a skipped step.
This operational check ensures that all planned operations are executed in their correct order.