2.1. Lathe Specifications A. Machine Capabilities: a. Machine Type: Horizontal slant-bed CNC Lathe b. Maximum Cutting Diameter: 12 in (305 mm) c. Maximum Cutting Length: 16 in (406 mm) d. Bar Capacity: 1.75 in (44 mm) e. Spindle Speed: 6,000 rpm f. Tool Turret: 12-station bolt-on turret g. Chuck: 6.5" hydraulic chuck, A2-5 mount h. Toolholder Kit: Minimum 3/4" bolt-on toolholder set B. The control system must include a dual-mode simulator designed for both mill and lathe operation to support instructional programming. At minimum, the control must offer 1 GB of program memory and support modern CNC programming features such as visual part programming, user-defined macros, rigid tapping, safe run modes, and media display (M130 command or equivalent). C. Connectivity features should include both Ethernet and Wi-Fi capability, and the lathe must be compatible with remote machine monitoring tools. The system must also allow wireless file transfers. D. Electrical requirements include a 208–230 VAC, three-phase power input at 60 Hz. The system should be equipped with a belt-type chip conveyor, a 30-gallon or larger coolant system, and a manual tailstock with a hydraulic quill. E. Required accessories include an automatic tool presetter, a power-failure detection module, and integrated surge protection. Basic safety features such as lifting provisions and emergency stop mechanisms must also be included. F. Support and warranty requirements include a minimum one-year warranty for parts and labor (two years preferred), on-site installation and calibration by certified personnel, and operational training for university personnel. 2.2. Annual Preventive Maintenance Service A. The selected vendor shall provide a comprehensive annual preventative maintenance service for CNC equipment. The scope of work must include mechanical system inspections such as verifying machine level, checking spindle sweep, inspecting gear shifts and spindle orientation, and changing gearbox oil (oil to be provided and disposed of by the customer). Belts, backlash, shot pins, and tool changers shall also be examined for wear and proper function. B. Lubrication systems must be serviced by cleaning way lube filters, verifying the integrity of all fittings and lines, and ensuring proper pump operation. Air and coolant systems should be evaluated by cleaning all air filters, inspecting for leaks, verifying pressure levels, and testing coolant pumps and motors for functionality. C. Electrical components must be tested to confirm proper voltage levels, grounding, and overall system safety. This includes an inspection of servo motors, terminals, and limit switches. D. For lathe equipment, turret and spindle alignment must be checked, and the rigid tap encoder inspected. Please note that the machine’s chuck must be removed by the customer prior to service. E. The maintenance service shall also include performance testing such as ball bar calibration, vibration analysis, drawbar force testing, and use of a dynamometer, with a complete Baseline Vibration Data (BVD) Report provided to the institution following the evaluation. F. All maintenance services must conclude with the delivery of a signed maintenance checklist and detailed service report. The targeted cost per machine for this service is approximately $2,195. Scheduling shall be coordinated between the awarded vendor and the designated university point of contact.
