HAAS Reconditioned Machines

Factory Inspected, Fully Certified

All Haas Automation certified pre-owned machines go through an extensive testing program before being certified for sale. As a recognized leader in the manufacture of American-made CNC machining centers, Haas has established this step-by-step, 150-point rebuild process to bring the Haas Automation pre-owned or demo machine back into the workforce as a fully-capable, ready-to-cut machine. The perfect solution for companies and shops looking for a quick machine addition to meet increased work demands, or as an affordable upgrade to their existing machining center lineup.

But first, let’s look at what the Haas Certified Pre-Owned Machine Program provides you, the shop owner . . .

1. Initial Evaluation

All pre-owned machines received at Haas Automation are evaluated upon receipt to establish the machine’s condition and suitability for rebuilding. The evaluation looks at factors such as age, condition, and model. Only those machines that are deemed suitable for rebuilding are placed in the rebuild schedule.

2. Rebuild Schedule

Haas Automation employs a dedicated CNC machining center rebuild area, staffed with experienced technicians trained in the rebuild process. When the selected machine arrives in the rebuild area, it undergoes yet another extensive evaluation under power to determine the complete scope of work required to make it functionally and cosmetically conform to current Haas Automation engineering standards.

3. Rebuild Process

When the rebuild process is begun at Haas Automation, it is done in a systematic and controlled fashion. Utilizing Haas’ ERP (Enterprise Resource Planning) system, the correct materials — required to rebuild the machine — are withdrawn from inventory and staged in the dedicated rebuild area.

4. Machine Testing

When the rebuild process is complete, the machining center undergoes the same inspection program used on our new production machines. These processes verify that the machine performs accurately and correctly, and that the entire machine functions as it should. The inspection process includes verification of:

• Machine model, type and options
• Machine operation
• Machine settings and parameters
• Machine accuracy, repeatability and geometry
• Machine documentation

Machine Inspection

Motor, Gearbox and Spindle Drive Checklist:

· Spindle is run up to maximum speed

· Forward and reverse verified from low to high rpm

· Spindle orients properly for tool change

· Spindle rpm is properly displayed

· Spindle load is properly represented

· Functional test with shell mill verifies motor/drive configuration

· Functional test with shell mill verifies 100% machine load capability

· Functional test with end mill for finish check

· Functional test with large drill to verify torque

· Functional test with tap (rigid/floating) to verify synchronization

· Spindle temperature verified to be within specifications

· Gearbox operation smooth with no abnormal noise or vibrations

Machine Geometry Checklist:

· Precision Checkmaster used to verify machine positioning and repeatability

· Electronic compensation is verified and/or adjusted

· Dynamic and static ball bar test verifies that machine squareness is within specifications

· Dynamic ball bar test verifies that machine flatness is within specifications

· Dynamic ball bar test verifies that machine straightness is within specifications

· Dynamic ball bar test verifies that machine backlash is within specifications

· Dynamic ball bar test verifies that machine roundness is within specifications

· Dynamic ball bar test verifies that machine ballscrew alignment is within specifications

· Dynamic ball bar test verifies that machine ballscrew assembly is sound

Coolant System Checklist:

· Coolant pump operates properly

· P-Cool option positions properly

· P-Cool option alignment is OK

· Coolant hose and lines inspected for leaks

· Enclosure inspected for coolant leaks

· Spindle head inspected for coolant leaks

Lubrication System Checklist:

· Entire system inspected for leaks

· Lube pump inspected to verify it holds pressure within specifications

· Spindle lube pressure is maintained within specifications

· Lubrication fluid at full mark

Servo Control System Checklist:

· Dynamic ball bar test to verify machine servo control is within specifications

· Dynamic ball bar test to verify machine servo electronic background noise is within specifications

· Verify machine Home function operates properly

· Verify machine E-Stop function operates properly

Enclosure and Accessories Checklist:

· Sheet metal inspected for damage

· Sheet metal inspected for proper assembly

· Way covers checked to assure proper function

· Work light properly tightened and aimed

· Work light checked for proper function

· Front doors open and close smoothly

· Front door switches operate properly

· Side doors open and close smoothly

· Windows checked for cracks

· Control panel swings smoothly at full range

· Control panel limit bracket is functional

· High-pressure lines are free of leaks or defects

· Tool changer door opens and closes properly

· Tool changer captures tools properly during tool change

· Tool changer carousel fingers are correct type

· Tool changer carousel fingers are in good working order

· Tool changer numbering is correct

· Tool release key on the spindle head functions properly

· Cables and conduit are routed properly

· Air regulator pressure is set properly

· Air regulator water trap is clean

· Spindle motor fan is functioning properly

· Control cabinet fan is functioning properly

· Spindle drive fan is functioning properly

· Control cabinet door functions properly

· Control cabinet accessory connections are properly identified

· Warning labels are present, current and readable

· Transformer wiring is properly tapped

· All sheet metal fasteners are present and tight

· Current service data sheet is attached to the inside of the control-cabinet door

· Current operator's manual is present

· Current floppy "CNC Data Disk" present

· Control cabinet connections are secure and properly routed

· Amplifier fan is functioning properly

· "Regen" fan is functioning properly

· Special option equipment is properly installed

· Control cabinet accessory holes not in use are plugged

· Control cabinet keys are present and functioning properly

· Beacon lights function properly

· Power off/on test is acceptable

· Table T-slot type verified

· Hydraulic counterbalance pressure is within specifications

· Counterbalance operates quietly

Operator Control Panel Checklist:

· RESET key functions properly

· POWER UP/RESTART key functions properly

· TOOL CHANGER RESTORE key functions properly

· TOOL OFFSET MEASURE key functions properly

· Automatic Tool Change forward and reverse indexes properly

· AUTO OFF functions properly

· NEXT TOOL key functions properly

· TOOL RELEASE key functions properly

· PART ZERO SET key functions properly

· PROGRAM display key functions properly

· POSITION display key functions properly

· OFFSET display key functions properly

· CURRENT COMMANDS display key functions properly

· ALARM/MESSAGES display key functions properly

· PARAMETER display functions properly

· DIAGNOSTICS display functions properly

· SETTING display functions properly

· GRAPH display functions properly

· HELP display functions properly

· CALCULATOR display functions properly

· EDIT keys function properly

· MEMORY keys function properly

· MDI keys function properly

· HANDLE JOG keys function properly

· ZERO RETURN keys function properly

· LIST PROGRAM keys function properly

· CURSOR keys function properly

· JOG keys functions properly

· CHIP conveyor keys function properly

· COOLANT control keys function properly

· FEEDRATE OVERRIDE keys function properly

· Spindle speed OVERRIDE keys function properly

· Spindle direction OVERRIDE keys function properly

· RAPID OVERRIDE keys function properly

· HANDLE CONTROL OVERRIDE keys function properly

· Alpha keys function properly

· Numeric keys function properly

· END OF BLOCK key functions properly

· CANCEL key functions properly

· WRITE/ENTER key functions properly

· E-STOP button functions properly

· FEED HOLD button functions properly

· Analog and digital load meters meet specifications

· CYCLE START button functions properly

· POWER ON button functions properly

· POWER OFF button functions properly

· Jog handle operates smoothly

· Jog handle functions properly

· Jog increments operate properly

· Monitor display is acceptable

· Keypad keys are readable

Parameters and Settings Checklist:

· Parameters are confirmed through computer interface and download of machine configuration

· Settings are confirmed through computer interface and download of machine configuration

Additional Inspection:

· Machine sales order configuration is verified

· Software version is verified as current to the configuration

• Each additional option undergoes its own battery of functional testing