1.  Product application:

Mainly used in noise test and electroacoustic test of motors, mobile phone audio, speakers , headphones and other electronic and electrical products

2.  Technical parameters:

Sound insulation effect: When the overall noise of the external environment is not more than 75dB and the customer’s central air conditioner is not turned on, the background noise in the box is 40db or 30db or 20db or customized according to requirements;

3.  Configuration and structure:

The composition of the mute box: mute box body, soundproof door single or double fan (opening type), movable wheel frame, energy saving lamp, opening into the wire hole, etc.

Structural materials:

1). Soundproof structure:

Due to the high requirements of the sound insulation box, the sound box is designed as a two-layer vibration isolation structure. The outer shell of the sound box (the same as the inner shell) is made of 1.5mm thick high-quality cold-rolled electrolytic steel plate and layer damping sound insulation material, and the exterior is sprayed with environmental protection paint The decorative surface is filled with vibration isolation materials between the two-layer shells, the inner layer has sound-absorbing module materials, etc., there is a sealing rubber pad at the door of the sound insulation box, and the box is equipped with product test cable interfaces.

2). Sound absorption and vibration isolation structure:

a. The inner surface of the box is affixed with 50mm thick wave strong sound-absorbing cotton.

b. The bottom of the sound insulation box can be equipped with movable casters with stainless steel brackets, and four shock absorbers to reduce the impact of external vibration sound sources on the sound insulation box.                                

 4. List of key parts

Serial number Accessories name Specification
1 Soundproof MDF The main soundproof wall is made of 12mm soundproof MDF (all around aluminum corners)
2 Decorative aluminum-plastic panel The outer decoration of the main body is decorated with 2.5mm silver-gray aluminum-plastic board (which plays the role of beautifying the appearance of the soundproof box)
3 Iron keel The main frame is supported by 25 * 50mm iron keel (to increase the soundness and safety of the soundproof box)
4 Damping sound insulation material The inner interlayer is filled with high-density damping sound insulation material
5 Soundproof MDF The inner compartment is encapsulated with 12mm soundproof MDF
6 Black fireproof wave sound-absorbing cotton The inner layer of the soundproof box is pasted with 75mm black fireproof sound-absorbing cotton
7 Double opening soundproof door sets of double soundproof doors with external opening (the size of the door opening is: 600 * H600mm )
8 switch Soundproof box with a power switch sets universal socket only
9 illumination Soundproof top box layer with LED lamp . 1 Zhan
10 Inlet hole Soundproof side with 40mm cable entry . 1 th
11 Removable casters Soundproof box bottom with movable lockable castors . 4 only