CNC punch press

The Problem

Three large CNC punch presses were generating high levels of noise in an otherwise 'fairly' quiet workshop area.

An in-house designed acoustic enclosures constructed on site by a local contractor consisting of:

20mm MDF either side of wooden frame
100mm cavity packed with mineral wool
External skin of 12.5mm plasterboard with plaster skim
10mm 'double glazed' Perspex viewing window
Standard U-section sliding door with brush seals with interlock system
Externally mounted machine controls
Full modular construction enabling maintenance and removal of machines
An interlock door system negates the need for light barrier or a pressure-sensitive pad safety system and lowers insurance premium.

Measured internal to external field level difference of 25dB resulting in a much quieter workshop environment.

Approximately one third of the price of standard commercially available industrial metal acoustic enclosure system.

HQC Ltd.

Noise: Don't lose your hearing https://www.hse.gov.uk/pubns/indg363.htm
Noise at work: A brief guide to controlling the riskshttps://www.hse.gov.uk/pubns/indg362.htm