Machine Shop Supervisor

The Machine Shop Supervisor will oversee all machining operations at a large-scale electric motor repair facility with 60 total employees at full capacity. This hands‑on supervisory role is responsible for leading a team of machinists, managing precision machining work on motor components, maintaining equipment, ensuring quality standards, and meeting production schedules for shaft repair, housing machining, and related operations critical to motor repair.

• Team Leadership & Supervision
• Directly supervise 5-10 machinists, including journeyman machinists, CNC operators, and apprentices
• Assign daily work orders and prioritize jobs based on production schedule and urgency
• Train and develop machinists in motor repair‑specific machining techniques
• Conduct performance evaluations and provide ongoing coaching
• Manage attendance, scheduling, and overtime for the machine shop
• Mentor apprentice machinists through structured skill development
• Foster a culture of precision, quality craftsmanship, and continuous improvement
• Machining Operations Management

• Oversee shaft turning, grinding, and straightening operations
• Direct shaft repair including metal spraying (thermal spray, flame spray, arc spray)
• Manage shaft installation and machining
• Coordinate shaft chrome plating and precision grinding
• Ensure proper bearing journal dimensions and surface finish
• Oversee keyway cutting, milling, and repair operations

• Manage bearing housing boring and line boring operations
• Oversee endbell machining and bore diameter corrections
• Direct housing face machining for proper alignment
• Coordinate bolt hole drilling and tapping
• Manage housing bushing installation and machining
• Component Fabrication:
• Oversee manufacturing of custom motor components (spacers, brackets, adapters)
• Direct fabrication of specialized tooling and fixtures
• Manage fan machining and balancing
• Coordinate pulley and coupling machining

• Ensure proper tolerances for bearing fits (typically +0.0000/-0.0005")
• Verify shaft runout specifications (typically 0.001-0.002" TIR)
• Monitor surface finish requirements for bearing journals (16-32 micro‑inch)
• Oversee alignment and concentricity requirements

• Inspect machined components to ensure dimensional accuracy and surface finish
• Verify tolerances using precision measuring instruments:
• Micrometers, dial indicators, bore gauges
• Height gauges, depth gauges, thread gauges
• Optical comparators and CMM (Coordinate Measuring Machine) when available
• Review blueprints and specifications before machining operations
• Approve first‑piece inspections on critical operations
• Investigate machining defects and implement corrective actions
• Ensure proper documentation of all machining work
• Maintain calibration schedules for precision measuring equipment
• Monitor scrap rate and rework requirements

• Oversee operation and maintenance of machine shop equipment including:
• Engine lathes and CNC lathes (various sizes for different shaft diameters)
• Vertical and horizontal machines
• Drill presses and radial arm drills
• Surface grinders and cylindrical grinders
• Boring mills and line boring equipment
• Metal spraying equipment (arc spray, flame spray)
• Shaft straightening press
• Welding equipment (for shaft buildup)
• Band saws and cut‑off equipment
• Balancing machines
• Coordinate preventive maintenance schedules
• Manage tooling inventory (cutting tools, inserts, drill bits, end mills, boring bars)
• Select and procure cutting tools and machining supplies
• Ensure proper coolant maintenance and chip removal systems
• Identify needs for equipment upgrades or replacement
• Maintain shop cleanliness and organization (5S methodology)

• Work with Production Manager to meet departmental delivery commitments
• Estimate machining time for job quotes and scheduling
• Prioritize work based on critical path and customer requirements
• Coordinate with other departments:
• Disassembly (receiving damaged components)
• Winding (shaft straightness requirements)
• Assembly (component availability)
• Testing (final dimensional verification)
• Manage outside machining services
• Track work‑in‑progress and…