Acoustic Enclosure for HVAC Systems - Low Air Resistance & Soundproof

• 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

Product Description

Product Description

NCC acoustic enclosure is a flexibly assembled and custom-tailored acoustic protection device.

Crafted with high-density sound-absorbing materials and robust structural design, this enclosure effectively effectively contain and mitigate noise, creating a safer and more comfortable working environment.

There are 10 components available, and you can pick whichever suits your particular needs.

Application Scenarios

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

Components

Acoustic louver: · In the structure of an acoustic enclosure, the Acoustic louver door is a key component that fulfills both "acoustic sealing" and "ventilation regulation" functions. · Galvanized steel, stainless steel, aluminum and other raw materials can be selected. · It features excellent noise reduction performance, low air flow resistance, and adaptability to various climatic conditions.
Ventilation Duct Silencer:     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.
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 (preventing sound from penetrating) and sound absorption (reducing noise reflection on the door surface).     The structural forms of NCC high-quality acoustic doors include single-door, double-door, hinged and sliding types.

Acoustic Louver

Octave Band Centre Frequency,Hz	Louvre Depth (mm)	Free area ratio(%)	63	125	250	500	1k	2k	4k	8k	STC  CLASS
NSL-100	100	40-45%	4	5	5	6	10	13	14	14	STC10
NSL-150	150	30-35%	5	6	8	10	14	18	15	14	STC14
NSL-150L	150	50%	/	5	6	9	10	12	13	13	STC10
NSL-200	200	28-30%	5	6	8	12	20	16	15	15	STC17
NSL-300L	300	50%	/	6	9	11	18	22	21	20	STC14
NSL-300	300	45%	6	7	10	11	17	17	14	13	STC18
NSL-600	600	45%	6	8	11	24	30	33	29	29	STC26

Octave Band Centre Frequency,Hz	Louvre Depth (mm)	Free area ratio(%)	63	125	250	500	1k	2k	4k	8k	STC  CLASS
Model NA300	300	42%	5	6	11	12	12	14	12	10	STC14
Model NA600	600	42%	6	11	15	20	24	27	26	20	STC24
Model NP300	300	50%	4	6	8	10	13	9	7	6	STC11
Model NP600	600	50%	5	10	13	15	22	18	15	13	STC19

Ventilation Duct Silencer:

Silencer Type	Face Velocity	Self Noise(Lw)	DIL,dBat250Hz				Pressure opinN/m²
			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 Door

Door Mode	Acoustic Rating				Leaf Thickness	Octave Band Centre Frequency								Weight
						63	125	250	500	1k	2k	4k	8k
	Rw	R'w	STC	NIC		Sound Transmission Loss,dB
For acoustic performance<50dB,please see NCC Acoustics'range of Sound-Lock Doors
Sound-Lock M-50	49	45	50	46	70mm	21	27	37	40	44	42	45	48	58kg/m²
Sound-Lock M-53	52	48	53	48	70mm	22	31	45	52	53	54	58	63	60kg/m²
Sound-Lock M-54	53	48	54	49	90mm	24	32	52	54	52	52	61	≥61	65kg/m²
Sound-Lock M-61	59	59	61	56	90mm	24	35	56	58	60	60	68	73	80kg/m²
Sound-Lock M-64	63	61	64	59	127mm	25	35	56	60	65	67	70	75	86kg/m²

 

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.

 

Test 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.