# Drilling machine PK 045A — ZMM Metalik AD

ZMM Metalik AD · Bulgaria · 2002

Gear trains ran in, gearbox noise decreased at all speed stages. Drilling machine PK 045A, ZMM Metalik AD. Bulgaria · 2002. 9 dB — gearbox noise level.

## Measured

- gearbox noise level, 77.3-80.5 → 68-74 dB — **9 dB**

## Conclusion

Gear trains ran in, gearbox noise decreased at all speed stages

Page: https://industry.xado.com/case/protokol_bolgariia_pk_045a_g
PDF report: https://industry.xado.com/pdf/TIER%20A/MetalikPazardzhik/Sverlilnyy-machines-PK-045A/XADO_MetalikPazardzhik_Sverlilnyy-machines-PK-045A_EN.pdf
Original scan: https://industry.xado.com/scans/protokol_bolgariia_pk_045a_g.pdf