SPINDLE REPAIR PROCESS AND SERVICE
GMN USA | 181 Business Park Drive Bristol, CT 06010 Phone 800 686 1679 Fax 860 409 2552 Mail info@gmnusa.com
OEM QUALITY AND EXPERTISE WITH OUR INDUSTRY STANDARDIZED SPINDLE REPAIR PROCESS
Our services are not only focused on GMN spindles, but on almost all makes and models. The most extensive spindle repair process in the industry guarantees your spindle is returned according to OEM specifications.
We only use the best components that comply to GMN quality standards, which guarantees our customers the best possible accuracy, efficiency and reliability.
Expertise and competence, combined with state-of-the-art test equipment, ensure the quality of all spindle repairs. We provide a full range of design, development, manufacturing, testing and repair services.
ORIGINAL GMN PARTS
GMN USA utilizes only the best components when refurbishing spindles. The use of GMN ABEC 7 and higher quality bearings assure the best possible accuracy and reliability for our spindle repairs. Motors, clamping systems, sensors and other critical parts supplied by vendors must meet strict GMN quality standards. All this attention to detail ensures that spindles are returned to our customers with “like new” performance and reliability. We would have it no other way!
BEST EQUIPMENT
GMN USA is equipped with a variety of grinding machines that cover all of our grinding requirements. All spindle component grinding operations are completed in our facility to ensure high quality and a quick turnaround time. Our assembly and test departments utilize state of the art spindle drives and vibration analysis equipment to confirm that each spindle meets the exacting demands of our customers.
QUALIFIED TECHNICIANS
The experienced team of engineers, machinists and spindle technicians at GMN USA is focused on providing the best possible service and technical advice to our valued customers. Our spindle repair service includes an accurate evaluation of incoming spindles, replacement or refurbishment of damaged components, dynamic balancing, extensive testing and vibration analysis. Let us put more than 80 years of spindle experience to work for you.
SPINDLE REPAIR PROCESS
Our team is focused on providing the best spindle repair process available by improving your spindle’s lifetime and increasing the capability of your machine tool. We use this same method when servicing spindles supplied by most other machine tool spindle manufacturers.
01
Spindle receipt and visual inspection
Visual inspection of the shipping container prior the removal of the spindle. The spindle is first checked visually.
02
Disassembly, measurement and analysis
Determination if a test run is required or possible. If test run is not possible disassembly of the spindle for further evaluation. All components are measured and inspected if repair or replacement is required.
03
Failure report and quotation
Our customers receive a cost estimate with detailed information about the damage, the cause of failure and estimated delivery.
04
Customer approval / PO
After receipt and approval of your purchase order we start with the actual repair process.
05
Chrome plating In-house grinding
For refurbishing components to meet our accurate and reliable OEM quality standards. All spindle component grinding operations are completed in our facility to ensure high quality and quick turnaround time.
06
Ultrasonic Cleaning
The components are cleaned, reworked according to original specifications or replaced by original GMN spare parts.
07
Balance rotating parts within G1.0 tolerance
Balancing grade within G 1.0 to determine the required balancing tolerance in order to achieve the best operation of the spindle in service.
08
Assembly
Once the spindle meets the our high requirements for quality, expertise and reliability, our experts assemble the spindle and make it ready for other tests.
09
Finish grind tool interface
Finishing process to smooth and flat the surface of your spindle so that we can guarantee your spindle is returned in „Like-New“ condition.
10
Test run Trim balance Vibration analysis
Functional checks on our test stand. Accurate evaluation to meet the same quality requirements as a new spindle with extensive testing and vibration and critical speed analysis.
11
Final Inspection Radial Runout 0.002mm Axial Runout 0.001 mm
Final inspection and testing for two types of spindle runout to reduce the risk of inaccurate machine registration, issues with tolerance control and insufficient tool life.
12
Shipping and Documentation
Once the spindle meet the same quality requirements as a new spindle the measured values determined are entered in a test certificate and submitted to you with the repaired spindle.
GMN SPINDLE HOTEL
Store your spindle in our safe and climate-controlled building. The warranty begins once your spindle leaves our facility.
If you would like to find out more about our SPINDLE REPAIR SERVICE or our GMN SPINDLE HOTEL , please contact us directly. We are looking forward to meeting you. LET US PUT MORE THAN 100 YEARS OF SPINDLE EXPERIENCE TO WORK FOR YOU!