Acoustic Enclosure - Can Used for Precision Instrument Protection

• Customization: Available
• After-sales Service: Yes
• Warranty: 2years
• Model NO.: NCC-03
• Customized: Customized
• Certification: ISO, Intertek Test Report
• Type: Acoustic Enclosure
• Application: Daily Life, Industry, Cooling Tower, Generator, Battery, Equipment,etc.
• Material: Aluminium, Galvanized Steel, Stainless Steel, etc.
• Color: Customized
• Components: Acoustic Louver, Panel, Door, Duct Silencer, etc.
• Use for: Equipment Noise Reduction and Ventilation
• Feature: Modular Structure Eases Disassembly and Assembly
• Transport Package: Plywood Board
• Specification: Customized
• Trademark: NCC
• Origin: China
• HS Code: 7616910000
• Production Capacity: 2000 M2/Month
• Package Size: 150.00cm * 150.00cm * 200.00cm
• Package Gross Weight: 80.000kg

Product Description

Product Description

    The NCC acoustic enclosure features flexible assembly and can be customized to meet specific requirements, making it a professional acoustic protection product.
 
    Its interior uses high-density sound-absorbing materials, while its exterior has a robust and durable structure. This enables it to efficiently block noise transmission and reduce noise intensity, helping to enhance the safety and comfort of the working environment.

1.   Sound insulation board(usually the inner surface is perforated)

2.   Top Gua side board

3.   Corner connecyion slot

4.   NCC sound insulation window

5.   NCC  "H"  connecyion slot

6.   Isolation rail

7.   Floor plate

8.   NCC soundproof door

9.   Floor connection slot

10.Top connection slot

    There are 1-10 components available, and you can pick whichever suits your particular needs.For example, you can choose whether to include glass windows or soundproof doors. The soundproof panels can be selected as either removable or fixed. This offers great flexibility, allowing us to customize products that are suitable for your project according to your requirements.

Main Components: Consist of Acoustic louver, Ventilation Duct Silencer, Acoustic Door and Acoustic Panel

1.Acoustic louver:

2.Ventilation Duct Silencer:

3.Acoustic Panel:

    In the structure of an acoustic enclosure, the Acoustic louver door is a key component that fulfills both "acoustic sealing" and "ventilation regulation" functions.
 
    It features excellent noise reduction performance, low air flow resistance, and adaptability to various climatic conditions.
 
· Model: NSL, NA, NP
 
· Thickness (Can be customized): 100mm, 150mm, 200mm, 300mm, 450mm, 600mm
 
· Material (Can be customized):

Galvanized sheet, aluminum sheet, stainless steel sheet, glass fiber cotton
 
· Surface Treatment: Polyester Powder Coating

    Ventilation silencer is an acoustic device and a key component in acoustic enclosures for controlling noise leakage.
 
    Installed in ventilation ducts or at the air vents of equipment, it functions to reduce noise generated by airflow and prevent the equipment's own noise from spreading outward through the ventilation system.
 
· Model: NFS, NFM, N, NSM, NES, NMS, NFL, NML, NL
 
· Size (Can be customized):

L: 900~3000mm, W(min): 600mm, H(min): 400mm
 
· Material (Can be customized):

Galvanized sheet, aluminum sheet, stainless steel sheet, glass fiber cotton
 
· Surface Treatment: Polyester Powder Coating

    Each module is made of galvanized steel, which is sturdy and durable.
 
    It also contains non - combustible, inert, mold - resistant and insect - proof sound - absorbing fillers.
 
· Model: NVT-50, NVT-100
 
· Size (Can be customized): 
     Standard Thickness: 50mm, 100mm
     Standard Width: 450mm, 360mm
     Standard Length: 915~3660mm
 
· Material (Can be customized): 
    Galvanized sheet, aluminum sheet, stainless steel sheet, rock wool or glass fiber cotton
 
· Surface Treatment: Polyester Powder Coating

4.Acoustic Door:

    An acoustic door is a special type of door designed specifically to block the transmission of noise. By optimizing its structure, materials, and sealing methods, it simultaneously achieves the functions of sound insulation and sound absorption.
 
· Size (Can be customized): 
    Standard Dimensions: 1500*2100mm(double-door)
                                             900*2100mm(single-door)
    Standard Thickness: 64mm, 89mm
· Type: Double-opening, single-opening
· Option: Acoustic window of different shapes
· Material (Can be customized): 
    Frame Material: 2.0 mm Galvanized steel plate
    Filling Material: Sound - absorbing rock wool board, gypsum sound-insulation board
· Surface Treatment:
    Baking -varnish surface decoration, wood -grain transfer printing

Acoustic louver
Octave Band Centre Frequency,Hz	Louvre Depth (mm)	63	125	250	500	1k	2k	4k	8k
NSL-100	100	4	5	5	6	10	13	14	14
NSL-150	150	5	6	8	10	14	18	15	14
NSL-150L	150	/	5	6	9	10	12	13	13
NSL-200	200	5	6	8	12	20	16	15	15
NSL-300L	300	/	6	9	11	18	22	21	20
NSL-300	300	6	7	10	11	17	17	14	13
NSL450	450	5	6	11	19	21	22	24	23
NSL-600	600	6	8	11	24	30	33	29	29
Model NA300	300	5	6	11	12	12	14	12	10
Model NA600	600	6	11	15	20	24	27	26	20
Model NP300	300	4	6	8	10	13	9	7	6
Model NP600	600	5	10	13	15	22	18	15	13

Ventilation Duct Silencer
Silencer Type	Face Velocity	Self Noise(Lw)	DIL,dBat250Hz				Pressure opinN/m^2
			Length(mm)				Length(mm)
	m/s	dB	900	1500	2100	3000	900	3000
NFS	5	45	22	31	37	47	142	177
NFM	5	36	15	23	30	39	47	60
N	3	35	15	23	31	41	90	122
NSM	3	31	14	21	29	38	50	78
NES	5	33	14	19	31	41	55	110
NMS	5	36	12	17	23	32	25	47
NFL	5	32	14	17	22	29	20	25
NML	5	30	9	14	19	25	12	22
NL	5	37	8	13	16	23	12	17

Acoustic Panel
Model	Centre  Frequency,Hz	125	250	500	1k	2k	4k	NRC*
NVT-50 (50mm)	Coefficient	0.35	0.65	1.20	1.21	1.07	0.92	1.00
NVT-100 (100mm)	Coefficient	0.97	1.39	1.34	1.29	1.19	1.01	1.30

Acoustic Door
Door Mode			Sound-Lock M-50	Sound-Lock M-53	Sound-Lock M-54	Sound-Lock M-61	Sound-Lock M-64
Acoustic Rating		RW	49	52	53	59	63
		R'W	45	48	48	59	61
		STC	50	53	54	61	64
		NIC	46	48	49	56	59
Leaf Thickness			70mm	70mm	90mm	90mm	127mm
Octave Band Centre Frequency	63	Sound Transmission Loss,dB	21	22	24	24	25
	125		27	31	32	35	35
	250		37	45	52	56	56
	500		40	52	54	58	60
	1k		44	53	52	60	65
	2k		42	54	52	60	67
	4k		45	58	61	68	70
	8k		48	63	≥61	73	75
Weight			58kg/m^2	60kg/m^2	65kg/m^2	80kg/m^2	86kg/m^2
For acoustic performence<50dB, pleace see NCC Acoustics'range of Sound-Lock Doors.

Application Scenarios and Typical Uses of Acoustic Enclosures:
Industrial Equipment Noise Reduction	For industrial equipment such as generators, air compressors, cooling towers, fans, and punch presses-devices that produce high-frequency or high-decibel noise-acoustic enclosures form a closed wrap around the equipment, effectively blocking noise from spreading outward. This not only complies with the relevant noise emission standards in the factory area but also provides reliable protection for the hearing health of operators.
Precision Instrument Protection	In application scenarios such as semiconductor testing equipment, laboratory analytical instruments, and medical imaging devices, acoustic enclosures can isolate external environmental noise and prevent it from interfering with the precise measurement or operational stability of the instruments.
Commercial and Public Spaces	It is suitable for building supporting equipment such as air conditioning units and pump rooms, and can reduce noise interference to surrounding office areas and residential communities. It can also be used to build temporary acoustic barriers around concert halls and recording studios to isolate ambient noise from the external environment.

Our Advantages

· Excellent noise reduction performance

· Durable construction with weather-resistant materials
 
· Integrated access doors and viewing windows
 
· Ventilation systems to prevent overheating
 
· Customizable dimensions and configurations

Laboratory Testing

NCC Acoustic Laboratory - A Laboratory Professionaly Committed to Serving Customers

       We exert every ounce of our strength to construct a high-end, avant-garde laboratory endowed with autonomous control capabilities.   For all bespoke products, be it in terms of specifications, dimensions, or acoustic requisites, prior to entering the mass production phase, we shall enforce rigorous and meticulous pre-production sample testing procedures.   Only upon thorough confirmation that all indicators are up to par will we invest a considerable amount of human and material resources to embark on mass production endeavors, thereby effectively guaranteeing that each and every batch of large-scale goods delivered to clients possesses outstanding quality.

       The fabricated product samples are positioned within the spacious window of the laboratory and securely fastened through professional sealing measures.   Through precise adjustment of the relevant parameters and concurrent utilization of advanced and precise apparatuses for comprehensive and profound testing, it is ultimately ensured that the products can fully comply with the exacting requirements of customers.

        As depicted in the illustration, the external noise of the laboratory attains 80.1 dB, while through random measurement, the internal acoustic laboratory drops to 36.4 dB or even lower.   The elevated standard of sound insulation not only ensures the accuracy of the experimentation but also furnishes a robust guarantee for the test outcomes.

Testing Report

Packaging & Shipping

Company Profile

    NCC is a supplier of noise control services and acoustic products. We have developed multiple sets of noise control solutions in various fields such as aerospace, commercial buildings, medical audiometry, industrial engineering, power equipment, subways and tunnels, performing arts buildings, and noise reduction laboratories. We provide customers with electric audiometry rooms, semi anechoic rooms, silent rooms, shielded rooms, listening rooms, fireproof soundproof doors, ventilation silencers, exhaust silencers, and noise reduction louvers Comprehensive professional services and technical support for the design, manufacturing, and installation of cooling tower noise control.
 
    Over the years, NCC has developed into a turnkey supplier of noise control, providing customers with one-stop solutions from concept to completion, including solution consulting, synchronous research and development, construction drawing design, structural design, fluid calculation, air conditioning and electrical system engineering, product manufacturing, installation and commissioning, and testing and acceptance services. With over 15 years of experience in noise control and acoustic engineering, we will provide you with solutions that meet your needs and budget. We look forward to working with you.