The process usually begins with design submission. Buyers provide drawings, CAD files, or an existing sample so the factory can understand dimensions such as length, plug size, keyway shape, and cam position. Once received, the manufacturer evaluates whether the custom lock cylinder can be produced using existing tooling or if new molds and machining fixtures are required. This step also determines early cost and feasibility.
If new tooling is needed, fabrication becomes the next stage. Molds and machining tools are prepared to ensure consistent production quality. After tooling is completed, sample units of the custom lock cylinder are produced for testing. These samples are checked for key rotation smoothness, mechanical fit, and functional performance in real use conditions.
Feedback from the sample stage may lead to adjustments. Small dimensional changes can sometimes be handled without major tooling updates, while larger design changes may require additional modifications. Once approved, the production parameters are locked to maintain consistency.
Mass production then begins with material verification, machining control, and functional testing at different stages. Each custom lock cylinder batch may undergo sampling or full inspection depending on application requirements. After production, products are packaged according to customer needs and shipped based on agreed logistics terms.
Overall, the production process is structured to ensure that a custom lock cylinder matches its intended application while maintaining mechanical reliability across different batches.

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