Since 2004

Engineering Silence.
Since 2004.

Shanghai HEMU Acoustics Technology Co., Ltd. is a professional provider of acoustic insulation and noise control solutions. As industrial noise-control requirements rise, R&D testing environments become more demanding, and offices shift toward flexible quiet spaces, we help industrial, utility, automotive, electronics, home appliance, university laboratory, and modern workplace clients reduce noise interference, improve acoustic testing precision, and meet international environmental and safety standards.

We provide complete services across industrial acoustic enclosures, office pods, anechoic and semi-anechoic test rooms, soundproof test chambers, and custom acoustic components — with lifecycle support covering solution design, equipment delivery, commissioning, and long-term maintenance. Our 80+ professional team, with over 50% acoustic engineers and field service staff, has delivered 500+ acoustic projects across diverse application scenarios.

Every system ships with traceable compliance documentation, including acoustic performance test reports and related technical files. We provide 7×24 technical support, remote diagnosis response within 2 hours, dedicated technical records for each client, and fast dispatch of core spare parts and modules to minimize interruption in testing, production, or office environments.

We prioritize eco-conscious acoustic materials and recyclable metal structures, and promote energy-saving soundproof design to reduce operating energy use and material waste. Our acoustic solutions are designed for European and North American acoustic testing, environmental, and safety expectations.

20+
Years in acoustic engineering
60+
Countries served
500+
Acoustic projects delivered
≤15 dB(A)
Anechoic chamber floor noise
The Meaning of Hemu

Growth above. Roots below.

Hemu (禾木) is a Chinese name carrying simple and beautiful meaning.

"He" (禾) symbolizes growth, order, and harvest. "Mu" (木) symbolizes roots, structure, and support. Together, they describe how we approach acoustic engineering: clear, stable, and worthy of long-term trust.

HE

Growth with order

Careful cultivation, steady rhythm, and measurable progress.

MU

Structure with roots

A solid foundation that keeps complex engineering work stable.

PROMISE

Reliable, clear, stable

A long-term partner for acoustic environments that must perform.

Our Journey

Two decades in acoustic engineering, from industrial noise control to measurement rooms and quiet workplace systems.

Industrial acoustic enclosure installed around machinery
2004
Industrial noise control

Founded in Shanghai. Initial focus on industrial soundproof enclosures for manufacturing facilities.

Hemi-anechoic chamber interior for acoustic testing
2009
Anechoic testing

First fully anechoic chamber project — 10 m³ hemi-anechoic room for a major home appliance OEM.

Anechoic test chamber technical cross-section
2014
Test facility design

ISO 17025 compatible test facility design capability established. CE marking achieved for all chamber product lines.

Soundproof office phone booth installed in a workplace
2018
Workplace acoustics

Launched modular office pod and acoustic phone booth product line for the global co-working market.

Generator acoustic enclosure application scene
2022
Hazard-area options

ATEX Zone 2 acoustic enclosures introduced for oil & gas and chemical plant noise control applications.

Semi-anechoic chamber for measurement projects
2024
Global project base

Serving 60+ countries with 500+ acoustic projects across industrial equipment noise control, generator rooms, office privacy spaces, anechoic testing labs, automotive, electronics, and home appliance programs.

Core Capabilities

Industrial noise control, office privacy, acoustic testing, and custom components — from design to lifecycle service.

Factory-built or site-built

Industrial Acoustic Enclosures

Custom acoustic enclosures and rooms for machinery, compressors, fans, pumps, generators, and production equipment — engineered around noise targets, airflow, service access, heat release, cable routing, and site boundary requirements.

Noise targetAirflowAccess
Precision measurement rooms

Anechoic Chambers

Anechoic, semi-anechoic, RF/EMC, and acoustic test chamber options for acoustic measurement, sensor calibration, and product noise testing. Background noise can be as low as ≤15 dB(A) for precision R&D and product qualification.

Cut-offBackground noiseGeometry
Quiet workspace modules

Office Pods & Booths

Office phone booths, meeting pods, privacy booths, and focus work pods for open-plan offices, airports, lobbies, and flexible workplaces — creating private call and concentration spaces with minimal disruption to existing layouts.

Speech privacyVentilationFast install
Serviceable acoustic systems

Soundproof Chambers & Lifecycle Support

Soundproof test chambers for rapid noise screening and product functional testing on production lines or in laboratories. Custom acoustic doors, absorber-barrier modules, stocked core parts, and 7×24 support keep projects traceable and maintainable.

Spare partsTest records24/7 support
Certifications & Standards

A clearer document framework for project approval and acceptance.

Certification, material, performance, and quality-management information is organized by project type and destination market so purchasing, engineering, EHS, and lab teams can evaluate requirements quickly.

The final document package is confirmed by product configuration, application, and import or site-acceptance requirements.
Product conformity

CE Marked

All chamber product lines

Test facility design

ISO 17025 Compatible

Measurement room planning

Hazard-area option

ATEX Zone 2

Available on request

Material traceability

REACH Compliant

Acoustic absorption materials

Quality management

ISO 9001:2015

Factory process control

Performance reference

IEC 60268-5

Chamber performance basis

Ready to engineer your silence?

Tell us your acoustic challenge — chamber size, target insertion loss, application, and timeline. Our engineers will respond within 24 hours.