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WR Transformer Corp — Tomball, TX

The Coil and Core Assembler is responsible for the assembly and integration of transformer coils and magnetic cores in accordance with engineering specifications, work orders, and quality standards. This role is central to the manufacturing of dry-type transformers and requires a skilled assembler who can handle precision components, read technical drawings, and consistently produce assemblies that meet dimensional accuracy and electrical performance requirements. The Coil and Core Assembler works under the direction of the Production Supervisor and is expected to maintain a safe, organized, and efficient workspace at all times.

Coil assembly

• Assemble wound transformer coils including the installation of insulation materials, spacers, lead extensions, and tap connections in accordance with engineering drawings and work instructions
• Position and secure primary and secondary coil assemblies accurately to ensure proper electrical clearances and mechanical fit
• Apply insulating materials including kraft paper, fiberglass, and other dielectric materials as specified in the design documentation
• Prepare coil leads and connections for terminal attachment in coordination with the terminal assembly team

Core assembly & stacking

• Stack and assemble silicon steel laminations to build transformer cores according to engineering specifications and lamination patterns
• Align, clamp, and secure core assemblies to ensure proper magnetic circuit geometry, minimal air gaps, and structural integrity
• Install core hardware including tie rods, clamps, yoke plates, and base frames per design requirements
• Handle and stage lamination materials carefully to prevent damage, burrs, or contamination that could affect core performance

Coil and core integration

• Insert and seat assembled coils onto the transformer core accurately, ensuring proper alignment, clearances, and insulation integrity
• Install blocking, bracing, and support structures to secure the coil and core assembly within the transformer frame or enclosure
• Complete final assembly steps including the installation of top yokes, clamping structures, and mounting hardware

Technical interpretation

• Read and interpret engineering drawings, assembly diagrams, lamination schedules, and work instructions accurately
• Apply knowledge of imperial measurement systems to verify component dimensions and assembly tolerances
• Identify and communicate discrepancies between specifications and physical components to the Production Supervisor or engineering team

Quality & inspection

• Inspect completed coil and core assemblies for dimensional accuracy, insulation integrity, proper clearances, and workmanship quality
• Use precision measuring tools to verify component placement, torque values, and assembly dimensions
• Identify, document, and report any nonconformances, defects, or quality concerns to the supervisor or quality assurance team promptly
• Maintain a high standard of workmanship and quality throughout all stages of the coil and core assembly process

Tools & equipment

• Operate hand tools, power tools, torque wrenches, lifting equipment, and other assembly tools safely and efficiently
• Use overhead cranes, hoists, or other material handling equipment to safely position heavy core and coil assemblies as required
• Maintain tools and equipment in good working condition and report any malfunctions or damage to the supervisor

Workspace & safety

• Maintain a clean, organized, and hazard-free workspace in compliance with 5S standards and company safety policies
• Follow all company safety procedures, PPE requirements, and rigging and lifting protocols when handling heavy transformer components
• Identify and immediately report unsafe conditions, equipment malfunctions, or potential hazards to the Production Supervisor
• Participate in required safety training and contribute to a culture of safety on the production floor

Team collaboration

• Work collaboratively with coil winders, terminal assemblers, and other production team members to meet production schedules and quality benchmarks
• Communicate clearly and professionally with supervisors, team members, and engineering staff regarding production progress and technical questions
• Support other production areas as needed to contribute to overall facility production goals

• High school diploma or equivalent required
• 1+ years of experience in transformer assembly, electrical manufacturing, or precision mechanical assembly preferred
• Ability to read and interpret engineering drawings, assembly diagrams, and lamination schedules
• Familiarity with transformer coil and core construction methods and materials preferred
• Comfortable working with imperial measurement systems and precision measuring tools
• Good manual dexterity with strong attention to detail and a commitment to quality and accuracy
• Experience operating overhead cranes, hoists, or other material handling equipment a plus
• Physical condition suitable for handling heavy components, standing for extended periods, and performing repetitive tasks
• Strong communication skills and the ability to work effectively as part of a production team
• Reliable, punctual, and self-motivated with a proactive and safety-conscious approach to work

• Ability to stand, walk, bend, stoop, and kneel for extended periods during a production shift
• Ability to lift and carry coil assemblies, lamination stacks, and hardware components up to 50 pounds regularly
• Frequent handling of heavy transformer components with assistance from lifting equipment
• Good manual dexterity required for precise assembly, insulation application, and component placement tasks
• Must be able to wear required PPE including safety glasses, gloves, and steel-toed boots at all times on the production floor

This position works full-time on the production floor of WR Transformer Corp's manufacturing facility in Tomball, TX. The environment includes exposure to electrical components, heavy transformer assemblies, overhead lifting equipment, moderate noise levels, and varying temperatures. All safety protocols, rigging procedures, and PPE requirements must be strictly followed at all times.