CNC Waterjets

Pump pressure, abrasive delivery, taper, garnet handling, maintenance and floor requirements.

Start with the part, not the brochure

Define the largest and smallest parts, materials, tolerance, finish, annual quantity, setup frequency and inspection method. A machine that looks impressive may be a poor fit if it creates excessive setup time, cannot hold the needed tooling, or lacks local support.

Verify the complete system

The useful machine is the machine plus control, options, workholding, tooling, coolant or extraction, metrology, software, postprocessor, training, power, air and service. Missing pieces can cost more than the apparent discount.

Document before committing

Record the exact model, serial number, control version, option list, spindle and taper, axis travels, table or chuck capacity, electrical requirements, machine weight, included tooling and known defects. Save listing photographs and seller statements.

Capacity questions

For cnc waterjets, compare work envelope, clearances, payload, spindle or process capacity, tool access and the fixtures required by your actual parts. Nominal travel does not always equal usable travel after vises, chucks, tombstones, rotary axes or long tools are installed.

Used-equipment inspection

Power the machine from a cold start when possible. Review alarms and maintenance history, exercise every axis, listen through the spindle range, inspect lubrication and way protection, test tool changes, inspect tapers and workholding, and confirm that backups and manuals exist.

Total installed cost

Add freight, rigging, unloading, foundation or floor work, electrical service, transformer, phase needs, compressed air, coolant or extraction, initial tooling, metrology, software, training and the cost of getting service to your location.