Punching And Silencing PU Sandwich Panel Line

The punching and soundproofing polyurethane sandwich panel production line is an efficient automated equipment dedicated to producing composite panels with sound absorption and noise reduction functions. Its core process combines punching molding and polyurethane foaming technology.

sandwich panel line

Typical Configuration

• Punching system
  Using CNC punching machines or laser cutting equipment, precise micro holes are punched on metal panels (color steel plates, aluminum plates, etc.), and the aperture and spacing can be customized according to acoustic requirements to achieve specific frequency band sound absorption effects.
  Part of the equipment is integrated with an automatic dust removal device to ensure surface cleanliness after punching and facilitate subsequent bonding.

• Polyurethane foaming and composite system
  High pressure foaming machine: the polyurethane black and white materials are mixed in proportion and injected between the punching panel and the back plate to form a closed cell foam core layer, which has both thermal insulation and sound insulation properties.
  Double track molding machine: By constant temperature and pressure, polyurethane foam is evenly foamed, and continuous molding of the board is achieved. The adjustable thickness range is usually 50-200mm.

• Automated auxiliary equipment
  Rock wool/glass wool slitting system (optional): used for producing composite sound-absorbing boards to enhance fire resistance.
  Online quality inspection instrument: Real time monitoring of board density, thickness, and surface defects.

Product advantages and application areas

• Outstanding acoustic performance
  The perforated panel and polyurethane core layer form a resonant sound-absorbing structure, which is suitable for places with strict sound environment requirements such as concert halls and high-speed railway stations.

• Diversified application scenarios
  In the field of architecture: integrated exterior wall decoration panels, indoor soundproof walls, and noise reduction enclosures for computer rooms.
  Industrial sector: Factory noise barriers, cold storage door panels (with insulation function).

The Sinowa punching and silencing pu sandwich panel line adopts modular design, supports PU/PIR/rock wool multi-core material switching, and reduces the energy consumption of the entire line by 40%.

The production line of perforated sound-absorbing pu sandwich panels combines precision punching and polyurethane composite technology to meet the modern building's demand for material multifunctionality, and has significant potential in green building and urban noise reduction engineering in the future.