Hessapp
The company that is famous for its capacity to give proper solutions and spindle repair service for the brands of leading manufacturer like the MAG Hessap – the GTI Spindle Technology will be considered a name that is equal to quality for the customers around the U. S. GTI perceives the importance of the machine tool spindles of the manufacturing unit in Hessapp need to function perfectly. We can repair all Hessapp vertical turning devices spindles and the 4 axis DVH machines with single spindle and the 2 axis VCDM lathe that are vertical turning. Hessapp produces huge product line of Vertical Turning Machine Centers (VTMs) and we are authorized Hessapp sales and service company for spindles and we also do repair the machines.
Hessapp Spindle Re-manufacturing Services
Analysis
Our technicians thoroughly inspect the spindle to identify the problem correctly before moving ahead with any spindle repair work. All spindles are subjected to the following 5 point assessment:
Incoming Vibration Analysis
Assembled Spindle Inspection
Disassembled Spindle Inspection
Bearing Condition
Engineering Recommendations
Incoming Vibration Analysis
- Incoming vibration analysis is performed in order to determine: bearing condition, level of unbalance, non-repetitive runout.
Assembled Spindle Inspection
- Pilot ID or taper runout on tool end of shaft to determine possible spindle crash or improper tooling.
- Rear taper runout inspection to determine possible over tightening of belts or improper tooling.
- Preload test to determine bearing wear or spindle crash.
Disassembled Spindle Inspection
- Pilot ID or taper inspection to determine spindle crash, improper tooling or overheating. Bearing journal inspection to determine improper bearing fits or use of spindle after initial failure.
- Overall shaft condition to determine crash, overheating, lack of coolant or overloading.
Bearing Condition
- An inspection of bearings is performed under lab conditions by factory trained bearing specialists to determine lack of lubrication, over speeding, spindle crash, overloading, loss of preload, contamination (coolant or other material) or overheating due to electrical problems. In addition, we have the access to all Bearing OEM’s facilitation and personnel.
Engineering Recommendations
- We recommend spindle design changes or enhancements to improve spindle longevity and/or performance. For example, if a spindle has failed due to contamination, a design change such as new labyrinth nuts, air purging, hybrid bearings or improved sealing design will be recommended and implemented.
What GTI Provides
Removal
Repair
Testing
Reinstallation
- The spindle needs to be removed from the grinding machine. Removal can be done either by the customer themselves or by GTI technicians who can be sent to the client’s site for removal of the spindle.
Repair
- Post planning of Hessapp spindle repair corrective actions, rebuilding as well as preventative maintenance work advice is given which needs to be taken care of before installing the spindle back into the machine.
Testing
- The spindles are tested to check if all the machine interface parts such as encoders, proximity switches etc. are functioning properly and all spindles have to pass the vibration analysis and review of an autonomous GTI QC manager.
Reinstallation
- Hessapp machine tool spindle post repair are reinstalled and checked for performance and reliability; which can be executed upon customer request by a GTI technician. Detailed documentation of the repair work is provided to all GTI customers.
Models We Service
- DVH 250i
- DVH 450e
- DVH750
- DVH TWIN
- DVH 320
- DVH 450i
- DVH-4x
- DVT
- DVH 350
- DVH 550
- DVH duo
- VDM