CNC Maintenance Technician

Cincinnati, OH
Full Time
Cincinnati
Mid Level
Aerobraze, a division of Wall Colmonoy provides advanced manufacturing services to the aerospace, defense and heavy equipment industries.  From our modern 90,000 square ft facility in Cincinnati Ohio, we perform CNC machining, vacuum furnace brazing, welding, thermal spray coating, x-ray inspection and advanced assembly.  Our customers are among the largest companies in the world, and our products are part of the key technology enabling their success. 

As a CNC Maintenance Technician, you’ll have the opportunity to help shape the future of our company, working on state-of-the-art CNC Machining equipment and supporting the growth of the business. This position's work hours are 5:00pm - 5:00am. 

Essential Responsibilities
  • Perform scheduled and unscheduled preventative maintenance on CNC horizontal and vertical lathes, CNC horizontal and vertical mills, and manual lathes and mills per OEM specifications and internal PM procedures.
  • Inspect, lubricate, adjust, and replace mechanical, electrical, hydraulic, and pneumatic components including spindles, ball screws, servo drives, way covers, tool changers, and coolant systems.
  • Calibrate and verify machine geometry, tool offsets, and axis alignment using precision measuring instruments; document findings and corrective actions.
  • Identify wear patterns and failure trends; proactively communicate findings to supervision and recommend maintenance intervals or component replacements.
  • Maintain accurate PM records in the CMMS (Computerized Maintenance Management System), including parts used, time spent, and equipment condition notes.
  • Perform minor CNC control troubleshooting and coordinate with OEM technical support or controls specialists for complex electrical/software issues.
  • Drain, clean, and refill coolant tanks on CNC and manual machining equipment per scheduled intervals or as directed.
  • Monitor coolant concentration, pH, and biological contamination levels; adjust concentration as needed using refractometer and maintain logs.
  • Properly dispose of spent coolant in accordance with environmental, health, and safety (EHS) regulations and company procedures.
  • Inspect and clean chip conveyors, sumps, and filtration systems associated with coolant delivery.
  • Assist the furnace maintenance team with scheduled PMs on heat treat and annealing equipment as requested, including thermocouple checks, door seal inspections, atmosphere system checks, and controller calibration support.
  • Support troubleshooting activities and repair tasks under the direction of the furnace maintenance lead or supervisor.
  • Assist the facilities team with general maintenance tasks including plumbing, compressed air systems, lighting, HVAC filters, and building infrastructure as workload allows.
  • Respond to priority work orders as assigned when not engaged in scheduled PM activities.
  • Participate in facility improvement and 5S/Lean initiatives within the maintenance department.

Qualifications and Experience
We offer a competitive salary, excellent benefits, and a supportive and exciting work environment.  If you are a driven and experienced Maintenance Technician with a passion for aerospace and defense manufacturing, we encourage you to apply for this exciting opportunity.
  •  High school diploma or GED; vocational/technical degree or completion of an apprenticeship program in industrial maintenance, machining, or a related field strongly preferred.
  • Minimum 3 years of hands-on maintenance experience in a manufacturing environment, with at least 2 years focused on CNC machining equipment.
  • Demonstrated experience performing PMs on CNC lathes (vertical and horizontal) and CNC mills (vertical and horizontal).
  • Working knowledge of mechanical, electrical, hydraulic, and pneumatic systems as they apply to machine tools.
  • Experience with coolant system maintenance, concentration testing, and coolant changeouts.
  • Proficiency with precision measuring instruments (micrometers, dial indicators, test bars, levels).
  • Ability to read and interpret OEM manuals, electrical schematics, hydraulic diagrams, and mechanical drawings.
  • Demonstrated understanding and application of Lockout/Tagout (LOTO) procedures.
  • Basic computer skills; ability to use CMMS software for work orders and documentation.
PREFERRED QUALIFICATIONS
  • Experience maintaining Mazak, Haas, Okuma, Doosan, or similar CNC platforms.
  • Familiarity with heat treat / furnace equipment maintenance in an aerospace or industrial environment.
  • Experience in aerospace, defense, or other highly regulated manufacturing environments.
  • Knowledge of AS9100 quality management system requirements as they relate to equipment maintenance.
  • CMMS experience with systems such as Infor EAM, eMaint, or similar platforms.
  • Forklift certification or willingness to obtain upon hire.
  • OSHA 10 or OSHA 30 General Industry certification.

Wall Colmonoy and Franklin Precision Castings are equal opportunity employers committed to an inclusive workplace. We welcome applications from all qualified candidates. Accommodations are available upon request throughout the recruitment process.

For U.S.-based positions, we are affirmative action employers of individuals with disabilities and protected veterans.

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