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Millwright
Jupiter Aluminum Corporation
Hammond, Indiana
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Job Description
Position Summary:
The Millwright is responsible for the installation, maintenance, troubleshooting, and repair of mechanical systems, rotating equipment, and structural components within the aluminum mill. This role requires a deep understanding of industrial machinery, precision alignment, hydraulics, pneumatics, and welding.
Key Responsibilities:
Equipment Installation & Precision Alignment:

Install, dismantle, and relocate heavy industrial equipment, including annealing furnaces, cold mill components, and auxiliary systems. Align gearboxes, pumps, motors, shafts, couplings, and rollers to manufacturer tolerances. Set up and calibrate hydraulic and mechanical press systems, ensuring proper load distribution.

Mechanical Maintenance & Repair:

Perform routine inspections to catch and prevent mechanical failures. Use tools like vibration meters and thermal imaging to detect wear and overheating. Identify and fix misalignments, excessive noise, or faulty moving parts. Work with the electrical team to resolve motor and automation-related issues.

Fabrication & Welding:

Perform structural and pipe welding (MIG, TIG, and Stick) for equipment repairs and modifications. Fabricate custom brackets, guards, chutes, and machine mounts using cutting, grinding, and welding techniques. Cut and fit steel plates, piping, and sheet metal for machine reinforcement and support.

Troubleshooting & Root Cause Analysis:

Utilize mechanical diagnostics tools (vibration analysis, ultrasonic testing, infrared thermography) to detect equipment faults. Identify causes of wear, heat buildup, or misalignment in bearings, shafts, and seals. Analyze lubrication systems for contamination, degradation, and improper viscosity levels.

Fluid Power Systems & Conveyance:

Maintain, troubleshoot, and repair hydraulic pumps, cylinders, servo valves, and proportional controls. Inspect and replace high-pressure hoses, tubing, and fittings to prevent leaks and pressure drops. Overhaul and adjust pneumatic regulators, air compressors, and vacuum systems.

Structural & Rigging Operations:

Perform rigging, hoisting, and lifting of heavy equipment using chain hoists, slings, and cranes. Ensure proper balance and load distribution in mill rolls, spindles, and machine frames. Use jacks, chains, and slings to move and position equipment safely.

Documentation & Compliance:

Maintain detailed service logs, work orders, and parts usage reports using CMMS software. Ensure all work complies with OSHA, ANSI, and company safety regulations. Assist in spare parts inventory management, identifying critical components for stocking.

Other duties as assigned.
Working Conditions:
• Work in an industrial aluminum mill with high temperatures, heavy machinery, and noise.
• Exposure to oil, grease, metal shavings, and dust.
• Work at heights, in tight spaces, and on elevated platforms.
• Required to wear Personal Protective Equipment (PPE), including safety glasses, gloves, steel-toe boots, and hearing protection.
• May work rotating shifts, weekends, and be on-call for urgent repairs.
• Work in both indoor and semi-outdoor areas, depending on production needs.
Qualifications: Education/Experience:
• High school diploma or GED required; Technical certification in Industrial Maintenance, Millwrighting, or Mechanical Engineering Technology preferred.
• 5+ years of experience in heavy industrial maintenance, preferably in metals, manufacturing, or a production environment.
• Proficiency in blueprint reading, hydraulic schematics, and mechanical drawings.
• Experience with precision machining, lathe work, and surface grinding for repairs.
• Familiarity with industrial lubrication systems, proper grease selection, and oil analysis.
• Welding certifications (AWS, ASME) and rigging certifications are a plus.
Behavioral Competencies:
• Strong analytical and troubleshooting skills for diagnosing complex mechanical failures.
• Attention to detail and a commitment to quality workmanship.
• Ability to work independently and as part of a maintenance team.
• Strong communication skills to collaborate with production operators and engineers.
• Safety-conscious mindset with a proactive approach to workplace hazards.
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Physical Requirements:
• Ability to lift up to 50 lbs and handle heavy welding equipment and materials.
• Stand, walk, bend, kneel, and climb for extended periods.
• Work in hot, cold, and dusty conditions near production equipment.
• Perform repetitive motions, overhead work, and manual dexterity tasks.
• Operate hand tools, power tools, and precision measuring instruments.
This job description is intended to outline the general nature and level of work being performed by employees in this role. It is not an exhaustive list of all responsibilities, duties, and skills required. Management reserves the right to modify, add, or remove duties as necessary.
By choice, Jupiter Aluminum is committed to creating a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, religion, color, age, sex, national origin, sexual orientation, gender identity, disability status, or veteran status.
Job Requirements