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Horizontal machining centers (HMCs) are CNC machines with a horizontally oriented spindle designed for heavy milling, high-volume production, and efficient chip evacuation. They suit automotive, aerospace, die-and-mold, and general metalworking jobs where rigidity, long tool life, and pallet or rotary indexing systems improve throughput and accuracy. HMCs often include multi-axis options, automatic pallet changers, and robust fixturing for long runs and large workpieces.
Check spindle condition and taper, axis travel and backlash, control model and software, tooling and chuck condition, pallet changer function, maintenance records, run hours, and evidence of accuracy tests (e.g., laser reports, test parts).
Drain fluids or secure coolant tanks, lock or brace axes and headstock, remove tooling and probes, secure pallet changer, protect control panel, use certified riggers and a transport cradle, and insure transit against damage.
Follow regular lubrication, check and top up coolant, inspect way covers and seals, monitor ball screw/backlash, perform spindle checks and balancing, clean chip paths, replace filters, and run periodic alignment and thermal-compensation checks.