Jiayin NTC Sensor Finishing Line

Project scope

The source proposal from November 17, 2022 outlines an NTC finishing line for single-end components. The process includes wire cutting and boarding, soldering, encapsulation, shell insertion, resistance and hipot testing, and later-stage terminal and plastic-seat assembly.

Flow objective

Rather than stopping at basic resistor joining, the plan extends into the downstream finishing steps needed to move product toward final shipment. That makes it a broader finishing-line design than a simple soldering cell.

Linked finishing operations

The proposal has to bridge automatic and manual work across several stations: boarding, soldering, encapsulation, shell insertion, board-level resistance and hipot testing, and manual terminal/plastic-seat work. The challenge is not one machine but overall line continuity.

Daily output planning

The source repeatedly sizes the proposal around a 30,000-piece daily target. That requires not only machine selection but also planning for line boards, encapsulation frames, turnover carts, potting fixtures and operator assignments.

Quality verification

The line includes both resistance and high-voltage testing, which raises fixture and test-handling requirements. Later assembly steps such as terminal crimping and plastic-seat insertion also add dimensional and handling risk after the primary sensor body is completed.

Automated front-end

The proposal starts with automatic wire cutting and boarding, followed by single-end component feeding, shaping and soldering. The later slides quantify the number of line boards required to support the targeted daily throughput and the board recirculation cycle.

Encapsulation and fixture sizing

The plan specifies one encapsulation machine for the targeted daily output, plus turnover carts and encapsulation frames sized around the stated production volume. It also sizes potting fixtures for the downstream shell-insertion and dispensing process.

Testing and downstream assembly

The testing section uses automatic resistance and hipot verification on fixture-loaded boards. After testing, the proposal continues into manual sleeve cutting, terminal insertion and plastic-seat assembly so the finishing line covers the later mechanical steps as well.

Proposed operating result

The resulting concept is a human-machine finishing line designed to carry product from boarded wire through tested and mechanically finished NTC assemblies. It is built around quantified fixture, board and operator planning instead of treating each station in isolation.

Planning depth

The source goes beyond machine photos and includes daily-output calculations, tooling counts and operator allocation. In practice, that gives the customer a line-level deployment plan rather than only a loose equipment recommendation.