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The design expertise of Newtech Engineering systems can meet any application where noise abatement and weather protection

Design Specifications ;

Some of the design characteristics of our acoustical assemblies include:

  • verified in actual field installations
  • sound-absorbing, barrier and resonator-type acoustical materials
  • vibration isolation and decoupling materials for effective control of noise over the entire noise spectrum, with particular attention paid to low frequencies
  • flexibility to fit all sizes, and configurations
  • designed to satisfy all climatic, and noise reduction requirements
  • pre-finished, corrosion-resistant exterior cladding protecting the layers of acoustical materials
  • constructed in the field, or prefabricated in a shop, depending on the application
  • material specifications ranging from 4" (102 mm) to 22" (559 mm) thick with our thickest assembly consisting of 12 various layers for unique noise control needs
  • self-framing or supported by the building's structural steel

  • Acoustical Properties :

    Our acoustical assemblies are specifically adapted for different levels and different types of noise, including tonal and low frequency noise sources. The design of each takes into account the following acoustical factors:
  • Mass
  • Sound Transmission
  • Wide Frequency Band Coverage
  • Vibration Path




 
Products

Acoustical enclosures:


Drop over enclosures can be used when it is necessary to suppress noise pollution from machinery either fixed or mobile. Legally employers must protect their employees from continuous high noise levels above 85dB (A). Most of our acoustic enclosures are completed at our factory and are ready to go directly into service. Installation is simple and can be done by the customer. On the other hand, site work may be necessary when the enclosure is large and cannot be transported in one piece or when it needs to be mounted in congested spaces. Then we supply the enclosure in panel form with quick-acting catches and assemble it on site. The enclosures can be constructed from any outer materials for a finish to your requirements and also all weather conditions. Each acoustic enclosure installation is treated individually. Site evaluations are carried out to determine the type of enclosure required.

Acoustical treatments:

Pre-fabricated insulated wall panels of 100mm to 300mm thickness will be mounted to the noisy room walls, with Acoustical Doors & Louvers. IT can be used when it is necessary to suppress noise pollution from machinery. Most of our acoustical wall panels, Doors & Louvers are completed at our factory and are installed in the customer place. Site evaluations are carried out to determine the type of insulation required.

Acoustical Doors :

Acoustical doors incorporate mass, damping and absorption concepts to effectively block sound transmission. Doors are triple-hinged and are constructed with flush faces to prevent noise leakage. Seals, caulking, hardware and frames are integrated into a door's design to ensure acoustical integrity. Features of doors supplied by Newtech include:
  • Integrated sealing - Adjustable sound seals are mounted on the main frame and gaskets are fitted on the bottom of the door to seal the threshold.
  • Fire-rated doors are supplied if required.
  • Durable - As required, exterior steel plates are primed and finished, or pre-finished to match the appearance of the building's walls.
Sound proof glass windows :

Newtech offers single or multi-paned sound proof windows as part of our complete acoustical design package. Windows range in thickness and acoustical performance. Similar to acoustical doors, seals, sills and hardware form an integral part of the sound proof window design.

Acoustical enclosures :

All our sound proof enclosures are designed to allow the maximum aspiration and cooling airflow required so the machine does not overheat. Weather louvers, acoustic louvers, splitter and baffles are provided to suppress the noise where require. Anti-Vibration mounts can also be provided where required.
Many special features are available depending upon the application. Some types of equipment such as generator sets and air compressors are self contained, but may require features including:

  • Hinged or lift off doors with single or double seals
  • Single or double glazed windows
  • Louvers to minimize water entry and maximize air flow through the enclosure
  • Mesh openings to stop vermin and vandalism
  • Ventilation - by means of an auxiliary fan
  • Vibration isolation - rubber mounted
  • Internal partitions - from sheet steel
  • Ventilation and cooling
  • Access points
  • Equipment vibration
  • Environmental issues
Acoustic enclosures will be as varied as per customer's requirements, can be of one-piece construction (ie. with no tubing), or built up on an RHS tubular framework. The enclosure outer walls generally consist of 1.6-2.5mm thickness of mild steel sheeting, and are internally lined to meet your requirements. The lining material can vary from rock wool covered with perforated metal to foams and composites.

The design of the acoustic enclosure is capable of variation to many machine noise problems. Requirements can range from a small noise reduction, in which a minimal solution will be adequate, ie. An enclosure which may not fully enclose the machine, can achieve 5-10 dB (A) noise reduction. More elaborate enclosures can achieve a noise reduction of greater than 30dB (A), and can consist of one enclosure inside another.

Painting of the equipment can be included in our manufacturing, and will vary from finishing with machine enamel to two-pack epoxy, powder coating or other options.

Acoustical Treatment :

Pre-fabricated insulated wall panels of 100mm to 300mm thickness will be mounted to the noisy room walls, with Acoustical Doors & Louvers. IT can be used when it is necessary to suppress noise pollution from machinery.

Most of our acoustical wall panels, Doors & Louvers are completed at our factory and are installed in the customer place. Site evaluations are carried out to determine the type of insulation required.

Equipment such as presses, foundry shake-out machines, nail making machines, and granulators require an inlet and outlet for entry and exit of the product. These openings need attenuation to minimize noise emission. Fans emitting considerable noise through the casing will also need to be enclosed and therefore penetrations will need to be provided for the air inlet and outlet. A small ventilation fan may be needed to remove the electric motor heat.

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