Precision Transformer Core Stacking Technician

SANMINA-SCI TECHNOLOGY INDIA PRIVATE LIMITED; Illinois; On-site; USD 25,000 - 39,000; Full time

Job summary

Sanmina Corporation in Illinois is seeking a Core Stacking Technician to precisely assemble transformer core structures from laminations and follow exact drawings for proper sequencing. The role requires high attention to detail, ability to use calipers, and safe operation of lifting equipment.

Responsibilities include stacking cores, performing quality checks, logging production data, and supporting process improvements during ramp-up.

Qualifications

• High School Diploma or GED required.
• 3+ years of experience in a manufacturing or assembly environment.
• Experience in mechanical or precision assembly work.
• Ability to read and interpret technical drawings and work instructions.
• Basic use of measurement tools such as calipers and gauges.
• Strong attention to detail and manual dexterity.
• Ability to identify assembly or quality issues and take corrective action.

Responsibilities

• Assemble transformer core components (yokes and legs) using pre-cut laminations.
• Follow work instructions and technical drawings to ensure proper sequencing and alignment.
• Maintain stack integrity, alignment, and dimensional accuracy throughout assembly.
• Prepare core assemblies for downstream operations.
• Inspect laminations prior to assembly for damage, coating condition, or non-conformance; log production data.
• Safely transport laminations and core components using overhead cranes.
• Maintain consistent assembly quality and minimize rework; support continuous improvement.

Skills

Reading engineering drawings

Measurement tools

Attention to detail

Manual dexterity

Education

High School Diploma or GED

Associate degree in Electrical/Mechanical Technology

Tools

Overhead crane operation

Job description

Sanmina Corporation in Illinois is seeking a Core Stacking Technician to precisely assemble transformer core structures from laminations and follow exact drawings for proper sequencing. The role requires high attention to detail, ability to use calipers, and safe operation of lifting equipment.

Responsibilities include stacking cores, performing quality checks, logging production data, and supporting process improvements during ramp-up.