About DEWIN
A certified factory-direct source for multi cable transit systems.
DEWIN designs and manufactures modular cable and pipe penetration sealing systems in our own factory in China, supplying engineering teams worldwide as a dimensionally compatible, certified second source — typically at 40–60% lower cost than established European brands.
2013
Founded
RMB 50M
Registered capital
38+
Granted patents
3
Production sites
Our story
Built to give engineers a qualified alternative.
DEWIN was established in 2013 in Shaanxi Province, China, with a single goal: manufacture multi cable transit (MCT) systems precise enough to replace incumbent European brands without any rework on the customer's side. Every module we produce is dimensionally compatible with common 120-frame standards, so switching supplier does not mean redesigning the enclosure.
As demand grew from battery energy storage, modular data centre, and switchgear manufacturers, we added production branches in Shandong and Hunan, expanding capacity while keeping tooling, materials, and quality control under one management system.
Today a dedicated export sales team supports purchasing engineers across Europe, Asia-Pacific, and the Middle East in English, with drawings, test documents, and cross-reference tables provided before a sample is even requested.
Manufacturing
Factory-direct, from mold to certified module.
Footprint
Three production sites
Shaanxi (founding plant), Shandong, and Hunan, run under one quality management system.
Tooling
In-house mold making
Custom frame and module sizes developed and validated without third-party tooling delays.
Inspection
BV-approved factory
Bureau Veritas approved, with test documentation available on request for every product line.
Support
OEM & private label
Custom branding, packaging, and documentation for integrators sourcing under their own name.
Certifications
Quality stated exactly, with scope.
| Standard | Scope | Status | Evidence |
|---|---|---|---|
| ISO 9001 | Quality management, all production lines | Certified | Certificate on request |
| IATF 16949 | Quality management, all production lines | Certified | Certificate on request |
| Bureau Veritas | Factory approval | Approved | Inspection report on request |
| RoHS | Sealing rubber and moulded components | Compliant | Declaration on request |
| Fire rating (A-0 / A-60) | Sealing modules and frames | Documents on request | Report reference with quote |
A factory-level certificate never implies product-level approval — scope is stated per line, not assumed.
What we build
MCT systems engineered for drop-in replacement.
Sealing
Watertight & gas-tight
Rated from 0.01–0.4 MPa depending on model, with test documents available on request.
Ingress protection
IP68
Suitable for outdoor enclosures, marine environments, and below-grade installations.
Fire performance
A-0 / A-60 rating
Fire-rated construction, with test reports supplied alongside quotation.
Modules
Step-core rubber
One module size adapts to multiple cable diameters, reducing part variants held in stock.
Material
Halogen-free EPDM
RoHS-compliant rubber compound, selected for long-term seal performance.
Compatibility
120-frame standard
Dimensionally compatible with common frame cut-outs for drop-in second sourcing, no enclosure rework.
Why qualify DEWIN
A second source that is easy to justify internally.
Cost
40–60% lower landed cost
Factory-direct pricing on parts that match your existing frame cut-outs, without a distributor margin.
Validation
Free samples & cross-reference
Existing model → DEWIN model → price, so your engineering team can validate fit before committing.
Flexibility
Custom sizes, in-house molds
Non-standard frame or module dimensions developed and tooled without third-party lead times.
Global reach
Serving export markets in English, on time.
Our dedicated export sales team supports purchasing engineers and EPC procurement teams across Europe, Asia-Pacific, and the Middle East, with drawings, CAD files, and quality documentation prepared before the first sample ships.
Europe
Asia-Pacific
Middle East
Talk to our engineers
Qualify DEWIN as your second source.
Send us your current frame size or drawing and our export team will confirm fit, share test documentation, and arrange a free validation sample.
Reply within one working day, in English, from an engineer.