IATF 16949
Automotive quality management system covering molding and carrier production.
View documentAbout Us
Precision plastic cable carriers and molded parts—European-standard quality for localized replacement.
Company profile
CNWSL (Zhejiang CNWSL Cable Drag Chain Co., Ltd., formerly Wenzhou CNWSL Cable Drag Chain Co., Ltd.) was founded in 2010 and focuses on precision plastic cable-carrier systems and high-end injection-molded parts. We integrate mold design, material compounding, precision molding and smart manufacturing. Our factory is at No. 2891 Ningkang East Road, Tiancheng Subdistrict, Yueqing, Wenzhou, Zhejiang, with offices in Shenzhen and Changzhou. The portfolio covers machine-tool carriers, cleanroom carriers and plastic cooling tubes; life testing starts at no less than 15 million cycles.
Rooted in Yueqing’s mold industry, we develop core molds in-house, hold 10+ national patents and stock more than 3,000 molds. Production runs on 70+ Haitian injection presses with automatic assembly lines—supporting non-standard sizes, anti-static/flame-retardant materials and color options, with most standard and custom orders shipping in 1–3 days. Certified to IATF 16949:2016 and ISO 9001:2015, products are tested via SGS and meet RoHS and related requirements, serving customers such as Magna, Inalfa, GAC, Zeekr and AVIC Precision Machinery.
Milestones
2010
Company founded
Wenzhou CNWSL Cable Drag Chain Co., Ltd. was established in Yueqing, Zhejiang, focused on cable carrier R&D and manufacturing.
2016
Capacity expansion
Mold library expanded; standard models covered mainstream machine tools and automation as precision molding capacity grew.
2020
Dust-proof series in volume
Fully enclosed dust-proof carriers passed life and duty validation and entered large-scale delivery.
2023
Certification upgrade
SGS, RoHS and related compliance processes strengthened export and premium-customer service.
2026
Changzhou office opened
Changzhou office opened to serve East China customers nearby. The company was renamed Zhejiang CNWSL Cable Drag Chain Co., Ltd.
Patents & awards
Utility model patentSplit-type cable carrier link
Utility model patentCable carrier link (30ZT)
Utility model patentCable carrier crossbar
Utility model patentA new cable carrier
Utility model patentCable carrier beam (I)
Utility model patentCable carrier beam (II)
Utility model patentCable carrier cover plate
Utility model patentA cable carrier side plate
Utility model patentA cable carrier link
Utility model patentCable carrier (18)
Utility model patentA new cable carrier structure
Utility model patentA dust-proof cable carrier
Utility model patentCable divider clip
Utility model patentCleanroom cable carrier
- Utility model patent
Split-type cable carrier link
- Utility model patent
Cable carrier link (30ZT)
- Utility model patent
Cable carrier crossbar
- Utility model patent
A new cable carrier
- Utility model patent
Cable carrier beam (I)
- Utility model patent
Cable carrier beam (II)
- Utility model patent
Cable carrier cover plate
- Utility model patent
A cable carrier side plate
- Utility model patent
A cable carrier link
- Utility model patent
Cable carrier (18)
- Utility model patent
A new cable carrier structure
- Utility model patent
A dust-proof cable carrier
- Utility model patent
Cable divider clip
- Utility model patent
Cleanroom cable carrier
Certifications & test reports
Fraunhofer IPA cleanroom certificate
Issued by Fraunhofer IPA (Germany): assessed to ISO 14644-14, rated ISO Class 1 at 0.5 / 1.0 / 2.0 m/s, valid until September 2031.
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Anti-static cleanroom carrier test report (CTI)
Third-party report by CTI Guangzhou: tested to ANSI/ESD S20.20:2021, volume resistance 1.19×10⁶ Ω and surface resistance 2.42×10⁶ Ω.
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SGS RoHS
Cleanroom carriers passed SGS hazardous-substance testing with compliant results.
Pulilong PA6 FR material report
Issued by raw-material supplier Ningbo Pulilong: measured data for flame-retardant reinforced PA6 grade FB1106-2BK, incl. water absorption, density, tensile and flexural strength, ash content and UL 94 V-0.
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Cleanroom high/low temperature test
Environmental test report verifying cleanroom duty adaptability.
Cleanroom fatigue test
Fatigue life report verifying reciprocating reliability.