Wire, Cable, Optical Fibre and Electrical Materials Workers

How to become an Insulation Products Maker

Official Chinese title (2022 occupational classification): 绝缘制品制造工

Also called: Insulating Materials Maker, Insulator Maker, Moulded Insulation Parts Maker, Insulating Bushing Maker, Heat Shrink Materials Maker

Runs specialist equipment such as reactors, mica tape machines, coating machines, hot presses and air compressors to make and assemble insulators, heat shrink materials, insulating materials and moulded insulating parts for electrical and electronic equipment.

Main tasks

Impregnating glass cloth, polyester film and similar with resin on mica tape machines, bonding it to mica paper or flakes and drying it with heat to make mica tape
Adding raw materials and additives to reactors to make resins, adhesives, insulating oils and varnishes
Hot pressing and curing insulating materials, then forming, punching, cutting and machining them into moulded insulating parts with CNC engraving and milling machines, hot presses, water jet cutters, infrared edge saws and so on
Hot pressing and curing stacked mica tape or prepreg sheets, then finishing them on edge trimmers and similar machines to make electrical laminates or mica board
Impregnating, mixing and kneading resin, additives or fibre, then moulding it into insulating products with extruders, kneaders, coiling and sheeting machines
Casting or casting and stretching resin into electrical film with slitters, casting machines and biaxial film stretching lines
Coating film with polymer resin to make adhesive film on coating machines
Winding insulating paper or film onto rods or tubes, vacuum impregnating it with oil or resin to make the core, then assembling or pressing it into electrical bushings
Processing quartz, feldspar and other raw materials in processing equipment and kilns, then melting, pressing, toughening, thermal shock testing and cementing them into glass insulators
Processing rubber, resin, carbon black and fillers, mixing and vulcanising them into shape, then crimping end fittings onto the insulating core to make polymer insulators
Crushing, mixing, sieving, removing iron from and filter pressing feldspar, clay, industrial alumina, bauxite and so on, then vacuum extruding or dry pressing blanks and trimming them
Drying, glazing and firing in kilns and similar equipment, then cutting, grinding and cementing to make porcelain insulators
Heating radiation crosslinked polymers until rubbery, expanding them quickly and cooling them to set, to make heat shrink materials, with air compressors, vacuum pumps, chillers, expanders and expansion moulds
Assembling insulating parts for electrical products by stacking, tying, gluing and riveting with equipment and tools
Maintaining jigs, gauges, instruments and equipment and fixing faults
Testing the performance of insulating products, using thermal analysers, flammability testers, electrical ageing chambers, universal testing machines and breakdown voltage testers

Pay · AI and this job

Median pay in China: CN¥64,700 a year (2025).
Middle half: CN¥51,200 to CN¥82,200. One in ten earn less than CN¥42,000 and one in ten more than CN¥103,200.
This is the figure for the mid group Electrical Machinery and Equipment Manufacturing Workers, not for this job alone.
National figure: wage prices of enterprise employees from the Ministry of Human Resources and Social Security (MOHRSS) enterprise pay survey. The public sector and the self-employed are not covered.
Guangzhou only: median CN¥84,672 a year (2025), middle half CN¥79,559 to CN¥98,414.
This is the figure for the minor group Wire, Cable, Optical Fibre and Electrical Materials Workers, not for this job alone.
Generative AI can do relatively little of this work, by the ILO's global estimate.

Who does this work

The census group Electrical Machinery and Equipment Manufacturing Workers holds 0.37% of everyone employed in China; 40.3% of its workers are women (2020 Census).
48.6% are under 35, 46.6% are 35 to 54 and 4.8% are 55 or older. The middle age band is 35 to 39.
Census figures for the whole mid group (2020 long-form sample), not for this job alone.

Questions people ask

How much does an Insulation Products Maker earn in China?

Across China, the median pay of enterprise employees is CN¥64,700 a year (Ministry of Human Resources and Social Security (MOHRSS), 2025). The public sector and the self-employed are not covered. It is the figure for the mid group Electrical Machinery and Equipment Manufacturing Workers. In Guangzhou alone it is CN¥84,672 a year (2025).

Will AI change the work of an Insulation Products Maker?

Generative AI can do relatively little of this work, by the ILO's global estimate.

Sources

Ministry of Human Resources and Social Security (MOHRSS): 2025 enterprise pay survey information: wage prices of enterprise employees by occupation mid group, and digital occupations (P10 to P90 annual CNY) (2025 (published 2026-07-08)), retrieved 5 October 2026
Guangzhou Human Resources and Social Security Bureau: Guangzhou 2025 labour market wage prices (P10 to P90 annual CNY by occupation) (2025 (enterprise pay survey)), retrieved 4 October 2026
National Bureau of Statistics of China: China Population Census Yearbook 2020, long-form tables 4-6 and 4-7 (employed by occupation mid group, sex, age) (2020 Census long form (10% sample)), retrieved 4 October 2026
International Labour Organization, Generative AI and Jobs: A Refined Global Index of Occupational Exposure (ILO Working Paper 140, Gmyrek et al.) (ILO Working Paper 140, May 2025, Annex Table A1), CC BY 4.0, retrieved 4 October 2026

Sources: Occupational Classification of the People's Republic of China (2022 edition, public consultation draft), Ministry of Human Resources and Social Security, State Administration for Market Regulation and National Bureau of Statistics; Ministry of Human Resources and Social Security, 2025 enterprise pay survey information; Guangzhou Human Resources and Social Security Bureau, 2025 labour market wage prices; National Bureau of Statistics of China (www.stats.gov.cn), 2020 Population Census yearbook; Ministry of Education, vocational education major profiles (2022 revision) and undergraduate major catalogue (2025); Ministry of Human Resources and Social Security, national vocational qualifications catalogue (2021); O*NET interest scores (CC BY 4.0); ILO global generative AI exposure index (CC BY 4.0). Figures processed by Peernovo. English text, translations and the matching of occupations to ISCO-08, majors, degree fields and qualifications by Peernovo.

Descriptions and tasks are Peernovo's own words, written from the facts in the Occupational Classification of the People's Republic of China (2022 edition). Job titles and work types are the classification's own.

Updated 5 October 2026