Delong NTC Sensor Finishing Line

Project scope

The Delong proposal from September 4, 2023 lays out an NTC finishing line built around 58-ohm resistor joining, board encapsulation, shell insertion, dispensing and automated resistance-plus-hipot testing.

Planning objective

The source does not stop at a process sketch. It also quantifies fixture counts, equipment counts, labor allocation and expected payback, making it a line-planning document as much as an equipment proposal.

Multiple linked stages

The line has to coordinate cutting and boarding, resistor shaping and soldering, encapsulation, shell insertion, manual sleeve work and auto testing. That creates a typical finishing-line problem: several medium-speed stages that need consistent handoff and fixture return.

Fixture and operator balancing

The proposal sizes not only machines but also supporting assets such as turnover carts, encapsulation frames and potting fixtures. It also translates that into planned on-line labor and projected labor savings, which suggests the customer was comparing automation against a manual baseline.

Testing requirements

The test stage combines resistance and high-voltage verification, so it needs dedicated fixtures and stable loading logic rather than simple bench testing.

Line configuration

The proposal begins with automatic boarding and 58-ohm resistor soldering, then moves into encapsulation and shell-insertion stages. The middle process is supported by five turnover carts and sixty encapsulation frames, plus 150 potting fixtures for the later process.

Testing section

The testing segment is planned around one automatic resistance and hipot test machine. The source presents this as a core quality gate for the finishing line rather than a separate optional station.

Investment model

The proposal states an estimated tooling investment of about CNY 151,300 and equipment investment of about CNY 1.73 million, for an overall line investment of about CNY 1.8813 million. It also estimates that the automated line reduces on-line labor by 13 people and reaches payback in roughly 14 months.

Proposed operating result

The Delong plan packages the NTC finishing route into one investment case covering process flow, support fixtures, testing and staffing. It gives the customer a clearer basis for deciding whether to move from manual work toward a more automated finishing line.

Business value

Because the proposal includes equipment counts, labor reduction and a payback estimate, it is positioned as an implementation-ready business case rather than only a technical concept.