Perforated Panel perforated mental panels perforated corrugated metal panels

model description         1> Grooved acoustic wall panels is a kind of slit resonance absorption material which is made from high density               panel with grooves on the surface and perforated holes at the back side.           2> It has strong selection on the sound spectrum and particular great performance on the middle and               low frequency.           3> It has better sound absorption effect on medium and high frequency if there is sound absorption cotton               filled at the back side cavity..            4> The design can be custom made            5> How to calculate the perforated rate:                 1) When the hole line up in square P=0.785*(D/B)m2                 2) When the hole line up in Equilateral triangle                                   P=0.907*(D/B)m2                     P ----- Perforated rate(%)                     D ----- Diameter of the hole                     B ----- Distance between two center of the holes     Grooved Acoustic wall panels Descrition          1>  The grooved acoustic wall panels is made of high quality MDF board.          2>  According to the customer’s acoustic and decoration requirement, our MDF board can equipped with               outstanding environmental, flame retardant and waterproof function, even can with various colors and               finish choices.          3>  Our grooved acoustic wall panels highest fire retardant grade can reach A2(GB) grade, and the best environmental              protection can reach E1(GB) grade.          4>  Grooved wood acoustic wall panels structures’ finish including: Melamine, Natural veneer, Anti-fire plate, Paint,               Metal sheet, Artificial veneer and leather etc.          5>  Acoustic tissue including: The black color and attached at the back side of acoustic wall panels tissue, has fire retardant              and sound absorption function.  

PRODUCT SIZE
width	133mm 197mm
length	2440mm
thickness	12mm   15mm   18mm
allowance : width ±1mm , length ±2mm ,                       thickness ±0.2mm

                                                                                                                                                                                                        Send inquiry soon>> Acoustic absorption is usually defined in terms of an absorption coefficient (usually denoted by the Greek letter alpha, α), defined as the ratio of absorbed to incident sound energy from a single interaction between a sound wave and a certain material.   Absorption coefficients range from 0 to 1 and vary with frequency,     α=0 means that the material absorbs no sound and reflects all sound energy incident on it.     α=1 means that the material absorbs all sound energy incident on it and reflects none. Absorption coefficients of 0 and 1 are ideal values that do not exist in reality because all materials reflect and absorb some sound.   In general, materials having absorption coefficients less than 0.15 are considered to be reflective and those having absorption coefficients greater than 0.4 are considered to be absorptive.   As you can see our Testing report show that our acoustic wall panels have a very good performance in a large range of application.                                                                                                                                                                                                         Send inquiry soon>>     Installation                                                                                                                     Contact us soon>> project cases                                                                                                                                                                                       Send inquiry ask for more>> Main Products   color swatch                                                                                                                                                                         Send inquiry ask for more>> About Us                                                                                                                                                                                          Contact us soon>>