Dynamic Balancing
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For almost 3 decades, KOSHYMA has been the preferred balancing partner to numerous OEMs, running plants as well as to the repair & maintenance sector. At KOSHYMA, we combine a scientific approach based on first principles, our vast experience in the field of vibrations and our in-house engineering strengths to bring a complete portfolio of services for all balancing needs. For every balancing scenario, we have a customised solution.
KOSHYMA can balance and certify rotors conforming to:
ISO 1940:1-2003, ISO 11342.1998 and API standards
The balancing process is developed based on the experience of balancing different applications and the balancing protocol is certified as per ISO 9001:2015
Applications include all types of Turbines (gas, steam, hydro), alternators, compressors, pumps, scrolls, impellers, fans, rollers, CNC tools/fixtures, pulleys, turbochargers, gears and pinions, spindles, vacuum pump lobes etc.
Key Benefits
⦁ Manufacturers and OEMs: supporting production volumes
⦁ Fast turnaround times for balancing jobs through dedicated machine availability
⦁ Meticulous balancing protocol for different rotor types
⦁ Clear post-production insight with regards to balance quality and batch-wise analysis
⦁ Repair, Maintenance and Service: total retrofitting solutions
⦁ Rebuilding of critical parts of rotor
⦁ Hub replacement and blade hard-facing
⦁ Spray-painting and sand-blasting services to deploy the finished rotor directly in the field
⦁ Value Added Balancing Services: freedom from imbalance
⦁ Run-out/face-out reports and keyway compensation guidelines
⦁ In-depth rotor diagnostics through vector analysis of the vibrations across operating speeds
⦁ Engineering support for designing balancing tools and adapters
Machine Features
| Machine Data | H-r | H-100 | H40 | H60UB |
|---|---|---|---|---|
| Make | Abro | Abro | Schenck | Schenck |
| Capacity | 60 kg | 1.0 T | 3.0 T | 18.0 T |
| Maximum Workpiece Diameter [mm] | 900 | 1600 | 1600 | 2400 |
| Minimum/Maximum Workpiece Length [mm] | 100/900 | 50/1800* | 180/3800 | 400/6000* |
| Journal Diameter Range [mm] | 6-55 | 16-125 | 16-125 | 40-300 |
| End Drive Power [HP] | – | 7.5 | – | 100.0 |
| Belt Drive Power [HP] | 1.0 | – | 5.0 | 75.0 |
| Achievable Balancing Speed [rpm] | 1500 | 320 | 2000 | 4000 |
| Balancing Accuracy” Ig.mm/kg rotor wt | 0.2 | 0.5 | 2 | 0.5(E)/0.2(B) |
- All machines are installed with electronic measurement devices for imbalance-vibration pickup and are regularly calibrated
- The machine pedestals have arrangements for inter-changable journals so that all sizes of rotors can be accommodated
- Both inboard and overhanging rotors can be balanced for purely static, static-couple interactions and dynamic imbalance
Facility
KOSHYMA’s dedicated balancing facility consists of 3000 sq. ft. dedicated to balancing services including our 4 balancing machines. In addition, 5000 sq. ft. of manufacturing space is available to cater to allied fabrication, maintenance and service activities for rotors.
- Trained personnel for handling critical parts with overhead cranes
- Secure storage for a large volume of jobs
- Ready set of balancing mandrels to suit different rotor sizes and setups
KOSHYMA has numerous success stories in balancing of critical applications. The setup can handle rotors starting from a few grams up to 18 MT in weight, 2.5 m in diameter and 6 m in length. For high-speed balancing and run-tests, speeds up to 3600 rpm can be achieved depending on rotor size.
Contact for any requirement
Mr. R. Sreenivas
balancing@koshyma.com
+91 8861640157