58-Ohm Resistor NTC Production Line

Project scope

The source dated August 14, 2024 is both a production-line proposal and a quotation package for 58-ohm resistor-based NTC products. It covers boarding, soldering, encapsulation, shell insertion, cleaning, glue preparation and performance testing.

Production objective

The line is intended to replace a more fragmented manual flow with a structured production route that still allows some manual intervention in the later stages. The source sizes several stations around a daily output target of about 20,000 pieces.

More than a basic joining line

This proposal includes several support processes that many simpler NTC plans leave out: ultrasonic cleaning, rolling glue, automatic glue mixing and vacuum glue mixing. Those extra process blocks increase coordination complexity but are important for stable encapsulation quality.

Capacity and manual handoff

The source still contains manual steps such as board insertion, supplemental glue and some testing actions. The challenge is therefore to automate the high-repeat sections without pretending the whole route is fully unmanned.

Investment scrutiny

Because this file includes quotation content, the design also has to justify capital spending. The later slides explicitly discuss equipment cost, labor saving and payback.

Front-end line sizing

The boarding section is rated around 2,000 to 2,200 pieces per hour depending on wire length, while the proposal pairs it with a dual-station soldering process for resistor joining.

Cleaning and glue management

The cleaning section uses an ultrasonic cleaning line rated at 24 frames per hour with two cleaning passes and one drying pass. Downstream, the proposal adds a rolling-glue machine, an automatic glue-mixing machine with ratio control and weight monitoring, and a vacuum glue mixer.

Shell insertion and testing

The shell-insertion and dispensing station is rated around 4,000 to 5,000 pieces per hour. The later testing section supports room-state or constant-temperature resistance testing plus data collection, so the line can capture process results rather than only sort OK and NG manually.

Proposed operating result

The proposal gives the customer a fuller NTC production route that covers not only joining and encapsulation, but also cleaning, glue preparation and traceable testing. It is therefore positioned as a more complete process package than the base finishing-line proposals.

Cost and payback

The quotation slides include an equipment investment estimate of about CNY 1.3661 million and an expected payback period of about ten months. That makes this source one of the clearest business-case documents in the batch.