Company Overview

Shaanxi Changmei Technology Co., Ltd. was founded in 1995 and brings over 30 years of expertise in the railway vibration and noise reduction sector. The company offers more than 300 products across six major series, serving the rail transit, construction, and industrial equipment industries. Committed to enhancing urban living, Changmei Technology strives to create quieter, more comfortable environments for city residents through its innovative solutions.

3,200 m²

Office space
107

Patents
100%

Production visualization rate

Workforce

300 +

Total Employees

With Master’s Degree

R&D Personnel

Expert and Academician

150 +

With Bachelor’s Degree

30 +

Senior Engineers

History

+ 1995-2030History

2030

Build a Chinese national brand. To become a pioneer in vibration and noise control materials for rail transit, high-end construction, and precision instrumentation.
2026

Green factory officially comes on stream
2024

Green Factory Solar cell workshop area: 48500 m²
2018

Smart factory OA&ERP&MES Full Deployment
2014

Technology Upgrade Built the only polyurethane continuous foaming mat production line in China
2005

Following the 'Specialized, Refined, Distinctive, and Innovative' (SRDI) development path, we are dedicated to advancing the application of vibration-absorbing and noise-reduction materials in urban rail transit.
2002

Industrial Transformation Entering the Urban Rail Transit Power Supply Sector
1995

Changmei Established

Product Category

Main Products	Category	Subcategory
	Rail Transit	Track Vibration Damping & Noise Reduction Products






		Track Fastening Systems



		Products for Tram/Tramway Track Systems



		Track Power Supply & Protection Products



	Building Vibration Damping	Polyurethane Vibration Damping Pad

		Rubber Granules for Vibration Damping
		Building Vibration Isolation Bearing
	Industrial Equipment Vibration Damping	Vibration Damping Pad for Industrial Equipment

Five Production Workshops

Injection molding workshop: 22 injection molding machines, 5 compression molding machines

Mold Engineering Department: Equipped with more than 20 units of CNC machining centers, EDM machines, wire cutting machines, and other digital processing equipment. Capable of in-house development of injection molds, rubber molds, and SMC molds for rail transit applications, including automatic core-pulling molds for sleeves. Annual mold and tooling output: 300 sets.

Injection molding workshop
Rubber vulcanization workshop

Automated damping elastomer production workshop
The first domestically developed polyurethane foaming production line.
Tooling and mold manufacturing workshop

Annual Production Capacity

Category	Output
Polyurethane foam isolation mats	1,500,000 m²
Vibration and noise damping products	500,000 sets
Rail power supply insulation and protection products	100,000 sets

Certification and Technical Achievements

Patents

CNAS Test Reprot

Product Certification

Integrated Management System

Pending Certification

Category	Count
National authorized patents	107
Invention patents	16
Technical achievements	28

CRCC-Certified Products: 5 categories, 10+ models

Integrated Management System (established 2018)

Standard	Scope
ISO 9001:2015	Product quality assurance
ISO 14001:2015	Environmental responsibility and corporate commitment
ISO 45001:2018	Occupational health and safety management

These systems have enabled full employee participation and raised company-wide awareness of individual responsibility.

ISO 22163 (Railway applications – Quality management system) – currently under application.

Testing Center

CNAS-accredited Laboratory

The Changmei Testing Center conducts testing activities recognized under the International Laboratory Accreditation Cooperation (ILAC) and the Asia Pacific Accreditation Cooperation (APAC) through mutual recognition arrangements.

Testing Scope – Finished New Polymer Material Products

Category	Tests
Mechanical properties	Tensile, compression, etc.
Physical properties	Density, hardness, etc.
Physicochemical properties	Chemical resistance, etc.
Electrical properties	Insulation resistance, dielectric strength, etc.
Combustion characteristics	Flame retardancy, smoke density
Wear resistance	Abrasion, friction
Aging tests	Thermal aging, UV aging, weathering
Fatigue life	Dynamic loading, service life simulation
Finished product performance	Application-specific validation

Facility and Staff

Total floor area: 1,500 m²

Testing personnel: 30+

R&D Platforms

Beyond routine testing, the Testing Center supports research and development through dedicated platforms.

R&D Projects

The Testing Center also supports R&D work. We have several dedicated projects:

• Engineering composites

• Electrical insulation materials

• Foam materials

• Elastomer materials

• Vibration and noise reduction products

• Power supply insulation products

Each platform handles both material development and product-level testing.

Sales Performance

Cities served in China

670+

Total lines participated

9,500^km

Total service line

Overseas Projects

We have also supplied vibration and noise reduction products for several rail projects outside China, including:

• Northern Plains Railway Project – Venezuela

• Malaysian Railway Project – Malaysia

• Lahore Orange Line Project – Pakistan

• Padma Bridge Railway Link Project – Bangladesh

• Masi Railway Project – Guinea

• Retemon Project – Mexico

• Astana Project – Kazakhstan

• Santiago Project – Chile

Our Culture

Corporate Development Vision

Through unremitting efforts and continuous innovation, we strive to become a specialized, high-quality, and strong enterprise. Following a high-end development path, we aim to build a nationally recognized Chinese brand, establish ourselves as a pioneer in smart manufacturing within the urban rail transit industry, and become the most competitive market leader—realizing a sustainable “Century-Old Changmei.”

Talent Cultivation Strategy

We place a strong emphasis on talent development. Weekly training sessions keep all employees updated on new product launches and policy changes. Our front-line staff are actively encouraged to pursue professional certifications and higher engineering titles, with full support for further education to enhance both personal and professional skills.

Employee Welfare & Care

We also care for our employees and their families. Each year, we provide a 100 RMB filial piety bonus to the parents of every employee. Children of employees admitted to colleges or universities receive an education scholarship ranging from 3,000 to 6,000 RMB. By supporting our people, we fulfill our social responsibility.

Changmei Technology Trust builds the base, innovation wins the race.

We are committed to delivering high-quality products and solutions for vibration&noise control projects, reliable service, and long-term partnerships.

inquiry now